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CONTENTS 

VOLUME 16 • NUMBER 9 SEPTEMBER 2007 WWW.TRENCHLESSONLINE.COM 

ON THE COVER 

CIPP work has become a staple of the Miami-Dade Water and Sewer 

Department. Photo by Sid Hoeltzell, Miami. 

COVER STORY 

20 Trenchless Thrives in Miami-Dade, Fla. 

In the early 1990s, the Miami-Dade County Water and Sewer Department 

(MDWSD) had in all likelihood the largest chemical grouting program for 

its sewer collection system in the United States. Fast-forward to 2007 

and MDWSD is still on the cutting edge of cities involved in rehabilitating 

their infrastructure. By Sharon M.Bueno 

FEATURES 

26 A Tale of Two Manholes 

For two experienced municipal contractors, one in the cold northern 

Great Lakes region, the other in the tropical coast of Florida, adding the 

complication of extreme weather conditions to already challenging projects 

required all of their creative thinking and job planning skills. 

By Suzan Marie Chin 

34 Perspective on Pipe Bursting 

America’s cities are facing a problem that collectively involves millions of 

miles of pipe and easily tops the trillion-dollar mark. There might be 

cause for despair if the only way to replace water, gas and sewer pipe 

was the time-consuming process of ripping up roads and yards by 

open-cut excavation. Thank goodness it’s not. By Kevin Smith 

28 WEFTEC 2007 Meets in San Diego 

Water and wastewater professionals from around the world can quench 

their thirst for knowledge and new technologies by attending WEFTEC 

2007, the largest annual water quality conference and exhibition in North 

America. By Pam Stask 

INTERNATIONAL SECTION: 

48 Grouted-in-Place Pipe Method 

Used to Reline German Sewer Lines 

52 Motorized Small Boring Units 

Power Through Rock on U.K. Pipeline 

56 ISTT Newsletter 

TRENCHLESS TECHNOLOGY (ISSN 1064-4156) is published monthly, with a Directory in May. Copyright 2007, Benjamin Media, Inc., P.O. Box 190, Peninsula, OH 

44264.All rights reserved. No part of this publication may be reproduced or transmitted by any means without written permission from the publisher. One-year 

subscription rates: complimentary in the United States and Canada, and $99.00 in other foreign countries. Single copy rate: $10.00. Subscriptions and classified 

advertising should be addressed to the Peninsula office. Periodical Postage Paid at Peninsula, Ohio and at additional mailing offices. POSTMASTER: send address 

changes to TRENCHLESS TECHNOLOGY, P.O. Box 190, Peninsula, OH 44264 USA. 

Canadian Subscriptions: Canada Post Agreement Number 40040393. Send change of address information and blocks of undeliverable copies to P.O. Box 1051, 

Fort Erie, ON L2A 6C7. 

www.trenchlessonline.com 

DEPARTMENTS 

6 News 

15 People 

16 TTC Newsletter 

59 Calender 

65 E-Biz 

COLUMNS 

4 Publisher’s Message 

18 Industry Watch 

59 Technical Forum 

66 Point of View 

MARKETPLACE 

60 Business Cards 

64 Index of Advertisers 

Promoting Technology in the Utility 

Construction Industry 

Coming in October... 

Announcement of the 2007 

Trenchless Technology Projects 

of the Year 

September 2007 TRENCHLESS TECHNOLOGY 3

PUBLISHER’S MESSAGE 

Contaminated Water Draws 

$4 Billion in Claims 

A recent Congressional hearing that has probed drinking water 

problems at Camp Lejeune, N.C., has brought dramatic attention to 

our drinking water infrastructure.As many as 1 million people were 

exposed to contaminated water dating back to the 1970s at Camp 

Lejeune, according to a document from a federal 

health agency. 

The problem resulted from the chemicals 

TCE (a degreasing solvent) and PCE (a dry-cleaning agent).The government 

describes them as probable carcinogens and believes that 

the water was contaminated by a dry cleaner adjacent to Camp 

Lejeune and by industrial activities on the base.As reported Aug. 15 

by ABC News,“At least 850 former residents of the base have filed 

administrative claims, seeking nearly $4 billion, for exposure to the 

industrial solvents.”The issue is whether exposure to the solvents possibly 

caused birth defects and leukemia in babies. 

With our litigious society in the United States, it is hard to imagine 

that the claims from this will stop at $4 billon.The magnitude 

of this problem, and particularly how far back in time this is being 

investigated, should be an eye-opener for our local officials in 

addressing their water and wastewater infrastructure problems. 

Pipeline Inspection Supplement 

We are pleased to include in this issue of Trenchless Technology a special pipe inspection 

supplement.Technological improvements have advanced the means by which local 

officials can get a much more accurate evaluation of their underground pipelines. CCTV 

has a proven track record and now you are finding advanced camera systems, sonar and 

other remarkable innovations, as well as sophisticated data management systems. Our 

managing editor Sharon Bueno and assistant editor Katherine Fulton have done an 

excellent job of pulling all this information together for your review. 

Miami-Dade, Fla. 

Miami-Dade has been at the forefront in the use of trenchless technology going back 

to the late 1980s. Soil conditions are especially favorable for the use of grouting annular 

space in pipeline rehabilitation, as well as pipe relining. Leading much of this effort has 

been Luis Aguiar,chief of water transmission and distribution with Miami-Dade Water and 

Sewer Department (MDWSD) and Rod Lovett, chief of the MDWSD sewage collection 

division.As Miami-Dade moves into its next phase of underground infrastructure work, it 

is now embraces such trenchless methods as cured-in-place pipe (CIPP) and lateral 

inspection and lining. Be sure to read this comprehensive report on Miami-Dade in this 

issue. 

Trenchless Technology International 

You will note in this issue an international section.Bi-monthly,we 

do a special front cover (on top of our regular cover) for our 3,500 

international readers.These readers are principally ISTT members 

outside of North America. 

We do this because Trenchless Technology International is the 

“Official Publication of ISTT.” So whether you are in the United 

States, Canada, Europe or China, we provide you with the latest 

information about the trenchless industry — indeed we are the No. 

1 source of trenchless information in the world! 

Regards, 

Bernard P. Krzys 

President & Publisher 

Publisher 

Bernard P. Krzys 

Associate Publisher 

Robert D. Krzys 

Editor 

James W. Rush 

Managing Editor 

Sharon M. Bueno 

Assistant Editors 

Katherine Fulton 

Bradley Kramer 

Contributing Staff Editors 

Keith Gribbins 

Jason Morgan 

Nick Zubko 

Creative Director 

W. M. Conley 

Senior Graphic Designer 

Edward A. Haney 

Graphic Designers 

Sarah Hayes 

Chris Slogar 

Elizabeth C. Stull 

Marketing Manager 

Kelly Dadich 

Sales Representatives 

Dan Sisko 

Greg Thompson 

Circulation Manager 

Alexis R.Tarbet 

Web & Interactive Manager 

Mark Gorman 

Editorial Advisory Board 

Chairman 

Dr.Tom Iseley, P.E. 

Sekisui SPR Americas, LLC. 

Greer, South Carolina 

Alex Buehler 

Insituform Technologies Inc. 

Chesterfield, Missouri 

Dr. Samuel Ariaratnam 

Arizona State University 

Tempe,Arizona 

David Bennett, P.E. 

Bennett/Staheli Engineers 

Sacramento, California 

Steven R. Kramer, P.E. 

Jacobs Civil Inc. 

Arlington,Virginia 

Joseph Loiacono, ing. 

Sanexen 

Montreal, Quebec 

Ronald T.Thompson, P.E. 

Malcolm Pirnie Inc. 

Jackson, Mississippi 

Irene McSweeney Woodfall, P.E. 

Boston Water and Sewer Commission 

Boston, Massachusetts 

Editorial & Advertising Offices 

1770 Main St., P.O. Box 190 

Peninsula, OH 44264 USA 

(330) 467-7588 Fax: (330) 468-2289 


e-mail: info@benjaminmedia.com 

4 TRENCHLESS TECHNOLOGY September 2007 www.trenchlessonline.com


NEWS 

Letters to the Editor 

I just received my July issue and wanted to say CONGRATULA- 

TIONS on 15 years as the publisher of the leading publication in 

the trenchless industry. It seems like only yesterday we first talked 

about this infant industry and would it survive. Now you tell me it’s 

been 15 years. My God how time flies when you are just “kids.” 

You deserve a lot of thank yous from this industry. I know of no 

other individuals who have done more for the industry or worked 

harder for it than you and your great staff. 

Here’s looking at another 15. 

Doc Bennett, International Vice President, CUES Inc. 

Congratulations to you for your 15-year successful run publishing 

Trenchless Technology. It has been rewarding and fun for me to 

be associated with Trenchless Technology for these past 11 years. 

My association with members of your staff, past and present, has 

been most enjoyable. Over the years, I’ve learned a lot about the 

business and have met many individuals in the trenchless field. I 

have respect and high regard for the men and women in the 

trenchless world. I’ve been able to follow the evolution of no-dig 

and am amazed at the changes and the rapidity of such. 

Chester Rufh, Retired Professor at Youngstown State University, Youngstown, Ohio 

(Editor’s Note: Chester is Bernie Krzys’ first cousin and has been a frequent 

support staff member at numerous Trenchless Road Shows and conferences 

conducted by Trenchless Technology.) 

Insituform 

Technologies’ 

Rooney Resigns 

The board of directors of Insituform Technologies 

Inc. accepted the resignation of president and CEO 

Thomas S.Rooney Jr.,effective immediately,according 

to a press release dated Aug. 14. Rooney had served 

those positions for four years. 

The board has begun a search for Rooney’s successor, 

considering both internal and external candidates. 

While the search is conducted,Alfred J.Woods, a board 

director since 1997 and non-executive chairman of the 

board since 2003, will serve as interim CEO. 

“Our board appreciates Tom Rooney’s contributions 

to the company during his four years as president 

and CEO. [His] charge was to pursue a threepronged 

strategy of growth, technological innovation 

and operational excellence. In the latter two areas, 

technological innovation and operation excellence, 

Insituform has made tremendous strides under Mr. 

Rooney’s leadership,”Woods said. 

“Unfortunately,since 2005 our growth has stalled as 

overall sewer rehab spending in the domestic market 

has stagnated. Our board and CEO disagreed on a 

Circle 3 on reader service card. 


number of stylistic and strategic issues 

regarding the company’s growth objectives 

and the board therefore accepted 

Mr. Rooney’s resignation,”Woods said. 

Wood emphasized that the board continues 

to believe in the three-pronged 

strategy. 

“Recent market conditions have been 

challenging to Insituform. These events 

have led the board of directors to believe 

their different direction would need different 

leadership. Where the company 

chooses to go from here is unknown to 

me,” Rooney said in a media statement. 

“But of this I have no doubt: If we had 

not made so many significant improvements,these 

new and unforeseen market 

conditions would have been even more 

threatening.In point of fact,the company 

has a very bright future and is in strong, 

capable hands… .” 

In other Insituform news, David A. 

Martin, company vice president and controller, 

has been promoted to vice president 

and CFO,a post that had been vacant 

for 19 months. Martin, who joined 

Insituform in 1993, has served as the 

company’s principal financial and 

accounting officer since January 2006. 

Ohio HDD Association 

Conducts Seminar 

The Ohio HDD Association’s seminar attracted member 

contractors, manufacturers, as well as representatives 

of Local 18 Operating Engineers. 

The Ohio HDD Association hosted a 

directional drilling seminar July 11 at 

the Precision Directional Boring facility 

in Valley City, Ohio. 

The all-day session was held at its 

training classroom at the facility. 


Attendees included manufacturer 

representatives and Ohio HDD 

Association contractor members, as 

well as representatives from Local 

18 Operating Engineers. 

Ohio HDD president Valerie Rogers 

served as moderator for the event. 

Presentations were given by John 

Christ and Bo Yordy, Baroid Industrial 

Drilling Products, on the mechanics 

of using drilling fluids and by Terry 

Crosier, Digital Control Inc., on locating 

and tracking systems.There were 

also demonstrations and a questionand-answer 

session. 

Baroid sponsored breakfast and 

lunch was provided by Precision 

Directional Boring. 

The Ohio HDD Association is looking 

forward to presenting more seminars 

around the state of Ohio. Look 

for announcements concerning the 

topics and contact the Ohio HDD 

Association if you have anything in 

particular you think would be of interest/help 

to you as a driller. For more 

information about the Ohio HDD 

Association, visit www.ohiohdd.com. 


Mears Group Dedicates 

Training & Test Facility 

Mears Group Inc. dedicated its 

new training and testing facility to 

its founder, Herb Fluharty, during 

open house festivities on July 11-12 

at the corporate headquarters in 

Rosebush, Mich. 

With more than 50 clients, regulators 

and 100 Mears employees present, 

the company introduced this 

new state-of-the-art test site, which 

serves as both a training ground for 

employees, as well as an industry 

research facility for testing the capabilities 

of cathodic protection testing 

technology. 

Hands-on demonstrations were 

observed and performed by the 

guests who attended the open house 

including close interval surveys, 

pipeline excavating, direct current 

voltage gradient surveys, BRS automated 

sandblasting, current attenuation 

surveys, pipe direct examination, 

ACVG surveys, NDT, casing 

ECDA, pipeline recoating and hori- 


NEWS 

Mears Group Inc. founder Herb Fluharty cuts the ribbon at the company’s new training and testing facility. 

zontal directional drilling. 

This new facility, which covers 2.75 

acres, serves as the cornerstone for the 

training and operator qualification 

(OQ) programs for Mears employees. 

The site offers field training capabilities 

for activities including pipe excavation, 

pipe coating removal, surface preparation, 

coating application, evaluating 

casing isolation, External Corrosion 

Direct Assessment (ECDA) indirect 

inspection surveys and pipe direct 

examinations. 

As part of their training, employees 

will have an opportunity to hone their 

survey skills on the test site, which is 

comprised of more than 1,000 ft of 

pipe, including 10-, 12-, 20-, 24- and 30in. 

diameters.The primary loop of pipe 

includes more than 50 coating flaws 

that were intentionally created ranging 

in size, shape and pipe orientation. 

Keeping safety at the core of Mears 

training, the company’s current vision 

for this facility will be to maximize 

training opportunities for new and 

existing employees.“We are convinced 

that a highly trained work force is a 

safer work force.And, it is our commitment 

to cultivate a culture with a focus 

on safety and quality,” said Mark 

Gluskin, senior vice president of 

pipeline integrity services for Mears.“In 

the end, we will have a better trained 

work force with a higher skill level.” 

Mears president Scot Fluharty said, 

“Safety has always been a big priority 

at Mears, but as we analyzed our 

records, we found that 90 percent of 

our safety issues were related to 

employees who worked for us one 

year or less.” 

8 TRENCHLESS TECHNOLOGY September 2007 


www.trenchlessonline.com


NEWS 

The test facility includes a 100-ft 

casing along the 10-in. carrier pipe 

for testing electrical isolation and the 

effects of electrolyte within the 

annular space. Test wires and reference 

electrode access holes for 

inserting the electrode into the annular 

space exist every 10 ft along the 

casing. The annular space can be 

flooded with varying amounts of 

water and variable resistors every 10 

ft can be used to change the location 

of contacts including simulating 

“high resistance” contacts.The carrier 

pipe contains prefabricated coating 

and metal loss anomalies of 

known sizes and locations, research 

and development training facility. 

Envirosight 

Training Facility Opens 

Near Pittsburgh 

Envirosight officials recently cut the 

ribbon on a new 1,500-sq ft annex to 

the company’s Delmont, Pa., inspection 

vehicle assembly and service center. 

The annex extends both the 

square footage and the capabilities of 

the Delmont facility, allowing the 

company to offer enhanced service to 

customers throughout the region. 

The annex consists of a training 

center, where customers can get 

hands-on training that covers the latest 

inspection technologies, software 

and techniques, as well as earn NASS- 

CO PACP certification. It also houses 

administrative offices, where 

Envirosight personnel involved in 

vehicle sales and production can 

communicate with customers and 

apprise them of their order status. 

Finally, visitors to the annex can 

enjoy a comfortable hospitality 

lounge, whether they’re waiting for 

training to begin,or onsite to pick up 

a new inspection vehicle. 

“Our Delmont facility is crucial to 

everyday operations, but today is the 

first day it gets a public face,” said 

Envirosight president Richard 

Lindner. “We’re thrilled to welcome 

customers for training, factory tours, 

and order delivery. Moreover, we’re 

excited to bring needed services 

closer to a larger portion of our customer 

base.” 

Envirosight, LLC provides video 

pipeline inspection solutions to municipalities,contractors,departments 

of transportation 

and civil/environmental engineers. 

Envirosight is committed to ongoing 

innovation, delivering products that 

enhance user productivity and inspection 

detail. Envirosight serves customers 

through a trained network of regional 

sales partners who deliver localized support 

and expertise with rapid turnaround.All 

Envirosight technical employees 

hold NASSCO PACP certification. 

RapidView IBAK 

USA to Hold Open House 

RapidView IBAK USA’s second annual 

Septemberfest in the Heartland will take 

place at its headquarters in Rochester, 

Ind., on Sept. 20-21. 

If you have any interest in pipeline 

inspection techniques or equipment, 

please plan on attending one of the many 

product operation and maintenance seminars, 

PACP and software training, or new 

product presentations.Visit with experts 

in emergent technologies like laser profiling, 

sonar profiling and 360-degree optical 

scanning cameras. 

And in the evenings you can enjoy 

live entertainment and drinks with 

other operators, owners, dealers and 

engineers in our industry. This year’s 

headliner is the Grammy Award winner 

The Kentucky Headhunters. 

If you are interested in attending 

please call (800) 656-4225 or visit 

RapidView’s Web site at www.rapidview.com 

for reservations and information. 

This event is completely free. 

Reduced PACP training fees will apply. 

ISCO Announces Opening of 

Ohio Facility 

ISCO Industries, one of the nation’s 

largest distributors and manufacturers 

of polyethylene (HDPE) piping products,recently 

announced the opening of 

a sales office and distribution facility in 

Zanesville, Ohio. 

The facility consists of offices, pipe, 

fittings and fusion equipment storage. 

This new facility is full service, offering 

pipe, fittings and accessories ranging 

from 2- to 18-in., a full line of McElroy 

fusion equipment for sale and rent and 

onsite field service technicians. 

With this addition ISCO Industries 

continues to take an impressive expan- 




NEWS INTERNATIONAL NEWS 

sion track having added facilities in 

Stockton, Calif., Dallas, Emporia, Va., 

Mableton, Ga., Johannesburg, Mich., 

and International locations in 

Crossfield, Canada and Australia within 

the past year. 

“The Zanesville facility allows us to 

further increase the service to our 

customers in eastern Ohio, West 

Virginia and Pennsylvania,” said Mark 

Kirchdorfer, vice president of ISCO 

Industries.“This move is a direct result 

of the rapidly growing use of HDPE 

across many applications in that part 

of the country,” he said. 

ISCO sales and technical representatives 

will be servicing the new facility, 

including Steve Bredemeier, regional 

sales manager. 

ISCO Industries, headquartered in 

Louisville, Ky., stocks and sells HDPE 

pipe, fittings and fabrications for various 

industrial, municipal, environmental, 

golf and landfill applications 

throughout the United States and 

Canada.The company also rents, services 

and sells fusion equipment. 

CUIRE Receives Grant to 

Conduct a U.S.-China 

Workshop on Trenchless 

The Center for Underground 

Infrastructure Research and Education 

(CUIRE) at the University of Texas at 

Arlington, received a grant from the 

National Science Foundation to conduct 

a workshop on Trenchless 

Technologies and Critical Underground 

Infrastructure Issues, in Wuhan, China, 

Oct. 8-14. 

Additional funding for this workshop 

is obtained from College of 

Engineering and Department of Civil 

Engineering at the University of Texas 

at Arlington and the China University 

of Geosciences, the host university. 

The U.S. team includes well known 

researchers from major universities 

and research centers. This award will 

provide travel support for U.S. participation 

in the workshop, where 

researchers from both countries will 

review the state-of-the-art of critical 

underground techniques, the experiences 

in China to-date and exchange 

ideas on development of research 

strategies. 

CUIRE director Dr. Mohammad 

Najafi will be the principal investigator 

(PI) on this project,assisted by several 

Co-PIs.The Chinese collaborators 

include: Dr. Baosong Ma, professor of 

civil engineering, the foreign organizer 

of this unique workshop; Dr. 

Huiming Tang, dean of College of 

Engineering; and Dr. Xiaoming Wu, 

professor of civil engineering. 

The workshop organizers would 

like to include several representatives 

from U.S. organizations and industries 

to participate in this workshop. The 

hotel costs for these participants will 

be provided through workshop funds. 

For more information, contact Dr 

Najafi at e-mail: najafi@uta.edu or ph: 

(817) 272-0507. 

Generation Change 

at Franz Janssen GmbH 

Founder and president Franz 

Janssen turned over the operation of 

Umwelttechnik Franz Janssen GmbH 

Circle 15 on reader service card. Circle 16 on reader service card. 


The Janssen family: Franz, Anja and Niklas. 

to daughter Anja and son Niklas on 

May 14, ending an era of almost 40 

years of trenchless rehabilitation technology 

leadership. Coincidentally, the 

date also marks his 65th birthday. 

In 1969, Franz Janssen, a mechanic 

for agricultural machinery by education 

and trade, founded his company 

in Kalkar on the Lower Rhine.He started 

his business in sewer cleaning and 

rehabilitation with his first flushing 

car. At a time when many sewers had 

to be painstakingly cleaned with 



brushes, Franz Janssen was one of the 

first to inspect sewers with modern 

TV technology. In the early 1980s, the 

entrepreneur turned to the issue of 

how sewers could be rehabilitated 

applying trenchless technologies, at 

that time a pioneering idea. 

For the next 20 years, his ideas were 

put into action.Janssen developed and 

patented novel processes and technologies 

for renovating aging sewer 

piping infrastructure. 

Throughout Europe, the Janssen 

Process became the standard for the 

rehabilitation of cracks or complex 

damages in sewer pipes. Franz’s 

method for applying durable PU or 

Silica resins from the inside to the outside 

of pipe through cracks and openings 

was a breakthrough technology 

because his technologies offer agency 

managers a permanent repair solution 

while reducing the cost compared to 

conventional dig and replace 

approaches 

His zeal for inventing and applying 

new technologies to customer problems 

fueled company growth.From the 

single flushing truck back in 1969, 

Janssen GmbH has outgrown two previous 

company locations and now 

counts more than 20 truck systems 

operating in Germany and Europe.So it 

comes as no surprise that the company 

founded by Franz Janssen is seen to this 

day as one of the technologically most 

advanced and most economical service 

companies for sewer cleaning and 

rehabilitation.Even with the senior as a 

pioneer of trenchless rehabilitation 

going from board, the next generation 

finds excellent circumstances to take 

over and continue the family business. 

With his company now firmly 

entrenched as one of Europe’s leading 

trenchless rehabilitation companies 

and a modern, new facility in Goch, 

Janssen leaves his legacy to Anja and 

Niklas. “I’m proud of what they have 

already accomplished,” said Janssen, 

referring to his daughter and son, 

“Their direction in expanding our 

technology and methods to the United 

States is working well,” he added. 

In September 2006, Janssen GmbH 

established a U.S. partner,The Janssen 


INTERNATIONAL NEWS 

Process LLC, which is aggressively 

marketing the Janssen Lateral 

Renovation System to the U.S. municipal 

sewer agencies.“This is an exciting 

time for Anja and Niklas,” continued 

Janssen. “In June, we are sending our 

lateral system to America to demonstrate 

its capabilities to nine cities.” 

Subsite Distributor 

in Poland Named 

The Charles Machine Works Inc. 

recently announced the addition of 

Poland’s P.U.H. Poltrade as an official 

dealer of Subsite electronic locating 

equipment, which is used to locate 

and identify underground utilities at 

construction jobsites. 

P.U.H. Poltrade provides well-proven, 

competitive and reliable measurement 

and automation solutions for the power 

sector, utility, and other industries in 

Poland. For more information about 

Subsite equipment, call (800) 654-6481 

or visit www.subsite.com. 

TRENCHLESS ASIA 2008 

Set for April in China 

TRENCHLESS ASIA is clearly established 

as the region’s largest and most 

important meeting for trenchless technology 

professionals and the third international 

event to be held in Shanghai, 

April 16-18,2008,is expected to surpass 

the two previous successful shows held 

in 2004 and 2006. 

As little as 10 years ago, conventional 

open-cut methods were widely used for 

the underground utility installation and 

refurbishment in mainland China. The 

rapid growth in population, coupled 

with the aging underground utility services,inspired 

engineers to study the benefits 

of trenchless technology. Today, 

China is the fastest growing worldwide 

market,with huge potential for overseas 

exporters. 

Trenchless technology is known to be 

used in more than 100 cities in China, 

with particular emphasis in Shanghai, 

Beijing and Guangzhou. The country’s 

achievements are competing at world 

levels, undertaking some of the most 

ambitious projects in terms of complexity, 

diameter and distance. The biggest 

HDD in the world is also now in China. 

As Beijing is set for the 2008 Summer 

Olympic Games, Shanghai prepares for 

the World Expo in 2010 and 

Guangzhou for the Asian Games in the 

same year, these major international 

events along with many other major 

projects provide evidence that the 

construction boom will continue for 

the foreseeable future. 2010 is also 

China’s target to realise the first stage 

of the modernisation process to meet 

the exploding urban population. 

TRENCHLESS ASIA 2008 provides a 

timely focus for the industry to display 

the world’s finest range of equipment 

and services used in the installation, 

repair and refurbishment of urban utility 

pipelines. 

For more information on exhibiting at 

TRENCHLESS ASIA 2008. Contact 

Caroline Prescot at Westrade Group Ltd., 

at ph:+44 020 8876 1881,e-mail:trenchless@westrade.co.uk 

or visit the Web 

site: www.westrade.co.uk. 




PEOPLE 

Interplastic Names CFO 

Interplastic Corp. CEO Jim Wallenfelsz recently announced 

that Steven Dittel has been appointed chief financial officer.Dittel 

will be responsible for overseeing the management 

of the financial and information technology departments. 

Dittel brings more than 20 years of financial experience 

having served as chief financial officer/director of operations 

for Circle C Foods, vice president of finance/director 

of operations for Stafford Blaine Designs and vice president 

of finance/human resources/information systems for 

Addco Inc. 

Dittel, a certified public accountant, earned a bachelor’s 

of science degree in business from the University of 

Minnesota and a master’s degree in management and public 

administration from Hamline University. 

Barsoom Joins PB 

Joseph Barsoom has been named senior principal 

engineer in the Denver office of PB, a global infrastructure 

consulting, engineering and construction management 

organization. 

Barsoom has more than 43 years of experience in civil 

engineering, and planning, design and construction management 

of public works projects. Prior to joining PB, he 

served as director of engineering for the wastewater management 

division of the City and County of Denver. He 

supervised planning, design and construction of flood control, 

sanitary and storm sewer systems. 



He earned a master of science degree in civil engineering 

from the University of Colorado and a bachelor of science 

degree in mining engineering from Assuit 

University in Egypt. He is a member of the 

American Society of Civil Engineers, the 

American Public Works Association and ASTM 

International. 

Founded in 1885, PB provides strategic 

consulting, program management, planning, 

engineering and construction management 

Barsoom 

services for transporation, power, building 

and environmental projects. 

Herrenknecht AG Appoints N.A. Sales Mgr. 

Herrenknecht AG,a global manufacturer of TBM,shield and 

mixshield tunneling machines, microtunneling 

systems,shaft dinking machines and horizontal 

directional drilling rigs recently announcement 

the appointment of Julian O’Connell 

as its new North American sales manager, 

For the past four and half years O’Connell 

has worked with the James Fowler Co. of 

O’Connell 

Dallas and Oregon, in the capacity of tunneling 

manager. In his new role with 

Herrenknecht, O’Connell’s responsibilities will cover the 

whole of North America, including the United States, 

Canada and the Caribbean,for the range of equipment with 

the company’s Business Unit Utility Tunneling (BU-UT). 


Trenchless Technology 

Center Newsletter 

National Trenchless Research 

Building Completed in June 

Work on the research building itself was completed in 

June but as soon as the building contractor moved out, 

work began on the large soil structure interaction facility 

to be built within the high bay research space in the building. 

The soil box design was expanded prior to construction 

so that it will be a total of 11 ft high and 20 ft x 20 ft 

in plan dimensions; 3 ft of the total depth will be below 

floor elevation and a 3-ft thick strong floor construction 

will both surround and underlay the soil box providing a 

tremendous flexibility in terms of applying loading horizontally 

and vertically to the soil and structures within it. 

Trenchless installation and replacement techniques will be 

simulated by a 550,000-lb servo-controlled actuator with a 

5-ft stroke that will be mounted horizontally adjacent to 

the soil box.A future newsletter will provide a more complete 

description of the new facility. 

Since the building dedication is planned for early 

November, work on the soil box and strong floor is proceeding 

at a rapid pace. TTC faculty member Dr. Mike 

Baumert, assisted by Dr. Luke Lee, has taken the major 

Trenchless Technology Center Newsletter 

S e p t e m b e r 2 0 0 7 

TTC Welcomes Irene McSweeny Woodfall to the Industry Advisory Board 

The TTC is very pleased to welcome 

Irene McSweeney Woodfall 

as a public works member of the 

TTC Industry Advisory Board. 

Irene is the director of construction 

of the Boston Water and Sewer 

Commission and has a longstanding 

involvement in trenchless technology 

applications within the 

water and sewer sectors. She has 

Pouring the 3-ft thick strong floor beneath the soil box. 

served on the Board of the North 

American Society for Trenchless 

Technology and this summer was 

on the organizing committee for 

the American Society of Civil 

Engineers Pipeline Division conference 

held in Boston. Irene joins 

10 other public works members 

from across the country (see sidebar 

for details) that provide guid- 

The National Trenchless Technology Research Facility. 

responsibility for the detailed soil box and strong floor 

design and construction. Because of the special issues surrounding 

the 320,000-lb anchor points that are distributed 

on a 2- to 3-ft spacing across the floor, much of the preparation 

work has been carried out by a team of TTC students 

supervised by Baumert. It is planned to use the soil testing 

facility for controlled 

studies of full scale soilstructure 

interaction for 

pipes up to several feet 

in diameter, studies of 

forces and ground movement 

during pipe bursting 

and pipe jacking, 

studies of HDD borehole 

stability and installation 

parameters, as well as 

utility locating and pipe 

characterization technologies.The 

distributed 

anchor points beneath 

ance to the TTC as to the user 

needs for technology development 

and problem issues that need 

attention. The public works members 

provide an excellent balance 

to the board, which also currently 

includes nine industry members, 

eight consultant members, five 

association members and two 

media members. 

Overall layout of the soil structure interaction 

the soil box will allow a total vertical load of up to 2.5 million 

lbs to be applied to the soil allowing the simulation of 

high force biaxial loading conditions.

“Listening” Sessions on Asset Management 

The Buried Asset Management Institute (BAMI) has undertaken a project for 

the U.S. Environmental Protection Agency (EPA) on the management of buried 

utility assets.One aspect of this project involves gathering feedback from municipalities 

on issues relating to the implementation of buried asset management 

(listening sessions). Because the TTC arranges municipal forum programs across 

the United States, the TTC was asked to use its municipal forum program to collect 

data for the BAMI project.Eight of the municipal forums held in the first half 

of 2007 were used to collect the data on asset management practices and needs. 

Discussion sessions and/or questionnaires were distributed at the forums 

between February and June 2007 (see municipal forum description for locations 

of spring forums).A total of 156 responses to the questionnaire were received. 

The questionnaire responses and discussion sessions indicated that there is general 

acceptance of the benefits of asset management at the engineering and operations 

level in municipalities.There was more skepticism about the level of understanding 

of this topic and the willingness of upper management and city councils/mayors 

to properly fund and implement such approaches. Guidance was also 

received regarding the creation of a national Center of Excellence for Asset 

Management. Full information concerning the results of the study will be included 

in the BAMI report to the EPA,which is planned to be completed later this year. 

2007 Spring Municipal Forum Season Summary 

The TTC Municipal Trenchless Technology Users Forum continues to expand 

its reach. Two new forum locations were added this spring in Boston and in 

Miami. Each forum is hosted by a local municipality or agency and is attended 

by municipal participants from surrounding communities. The morning sessions 

involve a variety of industry presentations and the afternoon closed sessions 

allow peer-to-peer exchange of experiences and expertise among the 

municipal participants.The accompanying table provides the summary of the 

spring forum programs. 

FORUM: LOCATION: DATE: HOST: TOTAL PRESENTATIONS 

ATTENDED: GIVEN: 

NORTHWEST Olympia, 

Wash. 

02/28/07 Zheng Lu 43 4 

COLORADO Littleton, Colo. 03/01/07 James 

Redmond 

51 6 

BOSTON Boston 03/14/07 Irene 

Woodfall 

48 5 

MINNESOTA Minneapolis 04/12/07 Richard 

Profaizer 

3 15 

NEW YORK Hoboken, N.J. 05/15/07 Fred Pocci 62 5 

OHIO Columbus, 

Ohio 

05/17/07 James Gross 37 5 

CALIFORNIA Los Angeles 06/05/07 Keith Hanks 41 5 

TEXAS Dallas 06/11/07 Cesar Baptista 47 5 

FLORIDA Miami 06/14/07 Victor Cuervo 48 5 

TOTALS 408 45 

2007 Fall Municipal Forum Season 

Fewer forums than normal are planned for the fall 2007 because of the special 

preparations being made for the dedication of the National Trenchless 

Technology Research Facility in November. All the forums currently being 

planned are scheduled for October. So far, the following four forums have been 

confirmed: 

If you would like further information 

FORUM: LOCATION: DATE: 

about the forum program either as a pre- 

COLORADO Aurora, Colo., 10/01/07 

senter, municipal attendee or prospective 

NORTHWEST Longview, Wash. 10/04/07 municipal host, please contact the TTC. 

LOUISIANA Alexandria, La. 10/24/07 

TEXAS Houston 10/25/07 

Trenchless Technology Center Newsletter 

Industry Advisory Board (AIB) 

Gerhard Lang 

Amitech USA, LLC 

Bernie Krzys 

Benjamin Media 

Irene McSweeney 

Woodfall 

Boston Water & Sewer 

Commission 

Richard Nelson 

CH2M HILL 

Wayne Querry 

City and County of Denver 

Troy Norris 

City of Atlanta 

Bob Johnson 

City of Dallas 

Joe L. Smith 

City of Houston 

John Morgan 

City of Indianapolis 

Keith Hanks 

City of Los Angeles 

Richard Aillet 

City of Ruston 

Ali Mustapha 

City of Shreveport 

Robert Cannon 

Composites One 

Glyn Hazelden 

Gas Technology Institute 

(GTI) 

Terry Anderson 

GCTA 

Brian C. Dorwart 

Haley & Aldrich, Inc. 

Anthony Almeida 

Halff Associates, Inc 

Rick Turkopp 

Hobas Pipe USA, Inc. 

Lynn Osborn 

Insituform Technologies, 

Inc. 

Richard St. Aubin 

IPEX Inc. 

Robert Morrison 

Jason Consultants 

Lucia Lee 

KBR - Kellogg Brown & 

Root, Inc 

Gunars Sreibers 

King County 

Vic Weston 

LA Contractors’ Educ. 

Trust Fund 

Cliff Tubbs 

Laughlin Thyssen, Inc. 

Larry Kiest, Jr 

LMK Enterprises, Inc. 

Irvin Gemora 

NASSCO 

George Cowan 

New York City - DDC 

Robert McKim 

Parsons Brinckerhoff 

Norman E. Kampbell 

Rehabilitation Resource 

Solutions, LLC 

Michael Burkhard 

Reline America, Inc 

Denise McClanahan 

Reynolds Inliner, LLC 

John J. Struzziery 

S E A Consultants Inc. 

Joseph W. Barsoom 

TTC Municipal Users 

Program 

L. Grant Whittle 

Ultraliner, Inc 

Robert Carpenter. 

Underground Construction 

Steve Cooper 

Uni-Bell PVC Pipe Assoc. 

Trenchless Technology 

Center Newsletter 

September 2007 

Trenchless Technology Center 

Louisiana Tech University 

Director: Dr. Ray Sterling 

Associate Director: 

Dr. Erez Allouche 

Director of Municipal Forum Program: 

Joe Barsoom 

Research Engineer: 

Jadranka Simicevic 

Secretarial Staff: 

Sandi Perry (administrative secretary) 

Mailing address: 

P.O. Box 10348 

Ruston, LA 71272-0046 USA 

Phone: (318) 257-4072 

Toll Free: (800) 626-8659 

Fax: (318) 257-2777 

E-mail: ttc@Latech.edu 

Web site for TTC: 

http://www.ttc.latech.edu 

The TTC Newsletter is published 

as a department within Trenchless Technology. 

All newsletter materials are prepared by TTC. 

Communications should be directed to the center.

INDUSTRY WATCH 

Aging Infrastructure Must Be Fixed Sooner, Not Later 

By Katherine Fulton 

“In the past 50 years or so, engineering has made great 

advances,” says Bill Marcuson, president of the American 

Society of Civil Engineers (ASCE).“Unfortunately, we often 

gain knowledge from our mistakes.” 

Sadly, these mistakes can sometimes take the form of fatal 

catastrophes. While some of these disasters occur despite 

vigilance and the best of intentions, many others are the 

result of poor maintenance or other preventable measures. 

Recently, two American cities had to contend with infrastructure 

failures that resulted not only in major damage to 

urban areas, but also to tragic losses of life. A steam pipe 

explosion in New York City on July 18, injured 45 and indirectly 

killed one (the victim suffered a heart attack while 

fleeing the scene). Less than a month later, the collapse of 

the I-35W Mississippi River bridge in Minneapolis, killed 13 

people when it plunged into the river.As crews pick up the 

pieces and investigators look into the causes of both accidents, 

many are wondering about the state of infrastructure 

in their area — and if leaders and decision-makers at all levels 

of government will do what it takes to prevent accidents 

like this from happening again. 

Though investigations into both the New York City and 

Minneapolis incidents are not yet conclusive, many agree that 

there could be several contributing factors that led to a “perfect 

storm” of sorts, resulting in the failure of these systems. 

Fabian Hadipriono Tan, a civil engineering professor at The 

Ohio State University,states that systemic failures are the result 

of either external causes,such as environmental stresses,pressure/wear 

on a structure,and so on,or internal causes,such as 

design, construction, material or maintenance errors. 

“External events are generally expected by us,” says Tan. 

“[In the case of the New York City steam pipe,] we normally 

have mechanisms like steam traps to relieve water pressure, 

to drain water that could create catastrophic events 

and so forth.We would also expect that regular and proper 

inspection and maintenance procedures be implemented 

on this type of infrastructure. External events are expected. 

“However, what we normally do not expect to happen 

here is what we call internal flaws, such as design errors, 

construction problems,material problems and maintenance 

of the pipes.We engineers design it and we assume that it is 

properly designed, so if there is an error, we don’t expect 

that error to happen. Otherwise, it’s not going to be 

installed in the first place.” 

While a combination of both external and internal causes 

could have easily sped the deterioration of these systems, 

the final piece of the puzzle could be issues with infrequent 

or improper maintenance at a time when funding for public 

systems continues to decrease.While no one will be able 

to pinpoint a definitive cause until after the investigations 


into the incidents are complete, Eben Wyman, vice president 

of government relations at the National Utility 

Contractors Association (NUCA), says that needs continue 

to grow even as federal funding shrinks. 

“It’s a sad story.Take water and wastewater systems — the 

EPA estimates that America’s wastewater infrastructure 

faces close to $200 billion in existing, documented needs,” 

says Wyman.“To make matters worse, we’ll need $534 billion 

for water and sewer systems by 2019 if we don’t up the 

ante in terms of investing in our underground, environmental 

infrastructure. When you take a broader look at our 

roads, bridges, highways, waterways, dams and schools, the 

situation doesn’t get any better.” 

In addition, various regions of the United States have special 

infrastructure needs due to population or environmental 

factors, says Marcuson. In some areas, population growth 

outpaces infrastructure growth, while areas like the West 

Coast and Gulf Coast must contend with the possibilities of 

natural disasters such as earthquakes and hurricanes. But 

regardless of location, he says that the effect of collapsing 

infrastructure is far reaching. 

“Crumbling infrastructure impacts the physical health of 

our nation’s citizens and the economic health of our country,” 

Marcuson says.“These recent failures have gotten the 

nation’s attention. Fixing these problems will take real leadership, 

but I don’t see anyone addressing the issues surrounding 

our infrastructure.This must change.” 

But the tide may be turning. According to Wyman, the 



recent disasters have spurred discussion on the state of 

America’s infrastructure in Congress. This, combined with 

NUCA and the Clean Water Council’s work to increase federal 

funding for water and wastewater infrastructure, may 

help get federal leaders to give serious consideration to the 

needs of infrastructure of all types.Some are already leading 

the way. 

“Longtime infrastructure champions like Rep. Jim 

Oberstar [D-Minn.] are responding accordingly and dragging 

others off the sidelines in the process,”says Wyman.“And he’s 

not alone — there are lawmakers who consider infrastructure 

a high priority, although many continue to need a lot of 

educating to realize how important these lifelines are to the 

nation.It’s our job to make sure that America’s infrastructure 

is a lasting priority and not the flavor of the week, because 

there is an overwhelming amount of work to be done.” 

Hopefully, the efforts of activists, involved members of 

Congress,civil engineers and infrastructure efforts will help 

turn the tide against an aging system that is struggling 

against time, wear and neglect. It is an effort that must not 

be abandoned, according to Marcuson. 

“We have underinvested in our infrastructure for decades, 

and sadly, we’ve learned that ignoring a problem doesn’t 

make it go away,” Marcuson says.“We must invest now or 

pay more later.” 

Katherine Fulton is an assistant editor of Trenchless 

Technology. 


COVER STORY 

Trenchless Thrives 

In the early 1990s, the Miami-Dade 

Water and Sewer Department 

(MDWSD) had in all likelihood the 

largest chemical grouting program 

for its sewer collection system 

in the United States. With its fleet of 

16 television and grouting systems 

and trained crews, Miami-Dade was at 

the forefront of addressing its infiltration-and-inflow 

(I/I) problems with 

the latest technology. 

Fast-forward to 2007 and MDWSD 

is still on the cutting edge of departments 

involved in rehabilitating their 

infrastructure.Today, the use of curedin-place 

pipe (CIPP) and lateral 

inspection and relining replace chem- 

ical grouting at the top of the agenda 

of work being done in the county. 

“The collection system is in better 

shape today than it has been in 10 to 

15 years,”says Rod Lovett, chief of the 

MDWSD sewage collection division. 

“We started with a consent agreement 

[with U.S. EPA] in 1992 and 

we’ve done in total since then about 

$400 million to $500 million worth of 

work on the system. We analyze the 

repair method that is the least expensive 

way to make the repair and a 

good portion of that has been 

through trenchless technologies.” 

MDWSD’s budget for trenchless has 

grown over the years as opportunities 

Trenchless Methods 

Remain Key to 

the County’s Water 

and Sewer Rehab 

Success 

By Sharon M. Bueno 

for use has expanded; approximately 

40 percent of its rehab budget is 

spent on trenchless projects. 

Through the use of fold-and-form 

(early on), CIPP, sliplining, pipe bursting, 

horizontal directional drilling,TV 

inspection, sectional and point 

repairs and chemical grouting of 

joints, the water and sewer divisions 

in Miami-Dade continue to invest 

wisely in its infrastructure — something 

all utilities need to be doing 

these days, Lovett says. 

“The state of the infrastructure in 

Miami-Dade is the same as the rest of 

the country — it is in desperate need 

of replacement,”says Luis Aguiar,chief 


in Miami-Dade, Fla. 

of the water transmission and distribution 

division.“We need to continue 

to invest money to replace the infrastructure 

because it is getting to be 50 

to 60 years old or older. We have 

water mains [in Miami-Dade] that 

have been in service since the early 

1930s. It is a challenge being faced by 

not only Miami-Dade but every 

utility across the United States 

where the infrastructure is getting 

to the point that unless we start 

investing money in it, it’s going to 

become catastrophic in the 

future. And it’s not just the water 

and sewer systems. Look at the 

steam pipe that blew in New York 

City and the bridge that collapsed 

in Minnesota [this summer].” 

Miami-Dade County is home to 

the fifth largest utility in United 

States, in terms of miles of service 

and customers. MDWSD, with 440 

sq miles of service area, maintains 

7,100 miles of water lines and 

3,600 miles of sewer lines, which 

serve approximately 2.4 million 

customers and includes 11 wholesale 

municipalities. 

The average age of the sewer 

and water lines are 40 and 60-plus 

years old, respectively, with some 

sewer lines dating back as far as 

1919.A majority of the sewer lines 

are made of clay with new pipes 

being fusible PVC; the forcemains 

are made of ductile iron and prestressed 

concrete. MDWSD operates 

three water and wastewater 

treatment plants each, along with 14 

pump stations for water service and 

954 pump stations for wastewater. 

Trenchless Baptism 

Trenchless methods made their first 

appearance in the county in the early 

1990s when fold-and-form (F/F) was 

used to rehab aging sewer lines, as it 

was considered more cost-effective at 

the time than CIPP, says Lovett and 

Aguiar. 

“We did some successful fold-andform 

programs,” Lovett says.“But now 

we are pretty much exclusive to CIPP. 


As we progressed, the patents on the 

CIPP process wore off and as competition 

came in, the price went down. 

We have a contract now that we pay 

$21.50 per foot for 8-in.CIPP,which is 

actually less money than what we 

were paying for fold-and-form.” 

So far this year, Miami-Dade has 

The Miami-Dade Water and Sewer Department completed more 

than 40,000 ft of CIPP work so far in 2007. 

done 40,600 ft of CIPP work.“That’s 

probably down from previous years,” 

Lovett notes. “We are going back 

through the system [with inspection] 

a second time; therefore we are not 

finding as much of a problem as we 

did the first time.” 

Back in the early days when everything 

trenchless was new, people 

were coming out of the proverbial 

woodwork, offering Miami-Dade 

can’t-miss solutions and products to 

its infrastructure problems. “About 

that time, everyone was coming 

down here with a magic wand, saying 

‘I got the process that’s going to solve 

all your problems,’” remembers 

Aguiar, who at the time was working 

on the sewer side. “It was then we 

decided to hire a consultant and form 

a committee so we could evaluate the 

different processes and materials that 

[were being pitched] to us… That is 

how we started to expand our 

trenchless program.” 

The district’s trenchless program 

has included over the years 

a variety of methods and trenchless 

companies, including some 

large diameter and interceptor sliplining 

work in the mid-1980s 

using HOBAS pipe, a program that 

lasted until the late 1990s. Pipe 

bursting has been used on the 

sewer side involving TT 

Technologies but is being utilized 

to a far larger extent on the water 

side today.Televising and grouting 

the sewer lines, once the main 

cog in its trenchless arsenal, used 

such companies as CUES. Regrouting 

annular space for liners 

added Logiball to the mix. 

Today, CIPP continues to be the 

most used trenchless method, 

contracting the work out to such 

companies as Insituform 

Technologies. Laterals are taking 

center stage these days with companies 

such as LMK and Perma- 

Liner among others getting the 

call. 

“Miami-Dade County Water and 

Sewer has always been very conservative,”Aguiar 

says.“It took a lot of 

effort to accept technologies that 

were really new to the U.S. market. So 

we had to take certain chances.” 

The televising and grouting program 

was one such chance, using 

technology that wasn’t largely accepted 

by many utilities at the time. 

Through the program, high levels of 

I/I were vastly reduced over a fiveyear 

period between 1993-98. The 

program proved invaluable to 

MDWSD and not just in terms of the 

I/I results but in the knowledge 

gained by its staff. “We had to learn 


COVER STORY 

how to do things,” Lovett 

says, noting that Larry 

Decker, MDSWD assistant 

superintendent for the 

sewage collection division, 

even created a software 

program at the time 

to record the readings 

from the flow monitors; 

based on this data, the 

county was able to determine 

where the heaviest 

I/I was concentrated. 

Miami-Dade also did its 

own television work, having 

in excess of 16 trucks 

in operation, and crews 

working in two shifts. 

“Right now we have 17 

truck shifts operating and 

eight crews that are running 

every day,” Lovett says. “We’ve 

cut back a bit because we finished 

the five-year cycle [of inspection] and 

are now on a 10-year cycle. Those 

trucks not only do SSES but they also 

Longevity of the MDWSD 2,700-member workforce has bred experience 

and invaluable trenchless knowledge. 

do the grouting.” 

The success of that initial TV and 

grout program allowed MDWSD to 

evolve into inspecting every foot of 

mainline in the system, as well as the 

laterals. “I haven’t heard of anyone 

else in the country that 

has done this,” Lovett 

explains. “As we go 

through the mainline, 

we stop at each lateral 

connection. We pan-andtilt 

[the camera] into 

each lateral to see if 

there are any leaks. If 

there is water running 

down in the lateral while 

we’re there, we’ll wait 

five minutes to see if the 

water stops.If it does,we 

move on.If it doesn’t,we 

identify that particular 

lateral as a suspect lateral 

and a lateral inspection 

team will go out at a 

later date and check it.” 

Laterals, Laterals, Laterals 

One area that MDWSD has aggressively 

and proactively addressed in 

recent years has been the condition 

of the laterals throughout the county. 




Through two pilot programs, more than 

1,600 laterals have been inspected and 

subsequently 1,000 rehabbed to this 

point. The county used a sanitary sewer 

evaluation survey (SSES) to assess the 

pipes’ condition. SSES uses various equipment 

and techniques to detect sewer 

pipe defects, blockages and capacity 

problems. These techniques include 

smoke tests, dye tests, closed-circuit TV 

(CCTV), flow monitoring, rain monitoring, 

building service connection location/inspection 

and flow isolation. 

“We did the pilot programs to try to 

identify the source of rain-induced I/I that 

comes into the system during and after 

heavy rains,” says Lovett.“We are looking 

closely now at extending the program.” 

The project is designed to evaluate a 

variety of lining systems, including CIPP 

and inner seals. In addition to testing 

these products, Miami-Dade is fine-tuning 

its flow monitoring techniques to ensure 

accurate measurements of the reduction 

of infiltration. 

The first and smaller pilot program 

goes back five years and involved three 


basins and 99 laterals. The second 

and larger program recently 

wrapped up and involved 52 basins 

and 1,600 laterals.Estimated cost for 

the larger program is $16.5 million, 

with actual costs being about $14 

million. “The only thing we don’t 

have on the second program is the 

rainfall data on some of the basins 

yet because we haven’t had enough 


rainfall to compare the results,” 

Lovett says, explaining that a “qualified 

rain event” is one in which at 

least 4 ½ in. of rain falls in a 24-hour 

period. “We typically get several of 

those during our rainy season but it 

hasn’t occurred across the county as 

a whole;it’s been spotty in the county. 

We have been able to qualify 

some basins, not all. 


COVER STORY 

“The program is dependent on 

showing the results of what we’ve 

done,” he adds.“There are a lot of 

lateral programs across the country 

in which all they do is go out 

and replace laterals but they don’t 

really know what they’ve done. 

They have no way of measuring 

their success.We wanted to figure 

out a way to do that.” 

Experience 

Breeds Success 

Aguiar and Lovett have been 

integral parts of the Miami-Dade 

infrastructure turnaround over the 

years. Aguiar just recently marked 

his 30th year with MDWSD and 

Lovett has 19 years on the job. 

Longevity is the norm among the 

2,700 workers at MDWSD, bringing 

expertise to the processes 

being utilized. Lovett says many 

things have changed over the 

years and appreciates the expertise 

that his staff brings to the job. 

CIPP may be the most used trenchless method in MDWSD 

but other methods include pipe bursting, HDD, sliplining and 

chemical grouting, to name a few. 

“I don’t know if we are old pros 

but we do know our system very 

well. I’ve never felt that what 

[Miami-Dade does] is what everyone 

should do because everyone 

has different circumstances. We 

do have a better handle on things, 

but most of that is because of the 

technology. 

“When I first went to work, the 

way we responded to sewer problems 

was strictly on a reactive 

basis,” he says. “If something was 

broke, we fixed it. Today, we’re 

probably doing 80 percent of our 

work on a proactive basis. That’s 

what’s changed and it was a long 

time in coming. And it was the 

right thing to do.” 

Sharon M. Bueno is managing editor 

of Trenchless Technology. 




MANHOLE FOCUS 

A Tale of Two Manholes 

No matter how extreme the weather or 

terrain, two seasoned contractors prove 

successful manhole rehabilitation can be 

achieved if you choose the right tools and 

follow the wise old motto: Be prepared. 

By Suzan Marie Chin 

For two experienced municipal contractors, one in 

the cold northern Great Lakes region, the other in 

the tropical coast of Florida, adding the complication 

of extreme weather conditions to already challenging 

projects required all of their creative thinking and job 

planning skills. Spray-applied polyurethane technology, 

along with research, pre-project planning and special site 

specific preparation methods proved to be the right combination 

for a successful rehabilitation in both cases. 

Manholes in the Canadian Cold 

Over the spring and summer of 2006, the Region of Peel 

in Hamilton, Ontario, Canada, had completed the construction 

and installation of four new manholes that were to be 

part of a newly rehabilitated 72-in. diameter interceptor 

line. The refurbished interceptor was ready to go online 

until inspectors discovered that the manhole structures 

were improperly constructed and cracking due to a design 

oversight and the extremely high water table in the surrounding 

area. High levels of infiltration were occurring, so 

it was decided that although it was already late autumn, 

rehabilitation measures had to be applied to the manholes 

immediately so that the new system could be brought on 

line as originally planned. 

It was decided that Spraywall — a spray-applied 

polyurethane rehabilitation material from Sprayroq — was 

Team Elmers crew examining the extent of infiltration and prep work 

required in one of four 28-ft deep manholes in Hamilton, Ontario. 

the best solution.The polyurethane would not only seal the 

cracks and eliminate the infiltration but also provide corrosion 

protection against the effects of hydrogen sulfide (H2S), 

extended the lifespan of the newly installed assets. 

Elmer’s Crane and Dozer Inc. of Michigan (Team Elmers), 

a Sprayroq certified partner, was contracted to perform the 

emergency rehabilitation of the structures. Knowing that 

late autumn in eastern Canada brings average daily high 

temperatures of 40 F, paired with high humidity and frequent 

rainfall, the Elmer’s crew had to carefully plan and 

prepare for the application process. 

Polyurethane application is ideally performed when outdoor 

temperatures are above 50 F.It is critical that the structures 

are kept relatively warm and dry and the spray material 

be heated and held at a steady, consistent temperature 

of 140 F for optimum results. With these factors, the crew 

had to have a source of heat and insulation available. 

In addition to the equipment and crew preparation, the 

structures themselves required extensive prep work before 

the spray process could begin. “There was a lot of prep 

work that had to be done.They were supposed to be brand 

new and in great condition when we arrived,” relates John 

Prescott, estimator/project leader for Team Elmers. “There 

was cracking that we knew we would have to deal with but 

the biggest problem was the groundwater infiltration 

around the seams of the structures.” 

To correct this, a second contractor was hired to seal and 

grout the structures with the assistance of the Team Elmers’ 

crew. Once this was completed, Team Elmers’ crews conducted 

the standard preparation for spraying.This involved 

pressure washing the structure, followed by the the application 

of a cementitious mortar by Preco to create a 

smooth, uniform surface on the walls of the structures. 

Another challenge for the crew was the unusually large 

size of the structures.The four structures to be treated were 

each 23 to 28 ft in depth with a square 10- to 12-ft chamber 

at the bottom, leading up to a 6-ft diameter cone. In structures 

that are rectangular in shape,an additional preparation 


step of cutting in keyways must be performed to ensure 

proper adhesion of the material to all of the walls.The crew 

cut quarter-inch deep keyways on a 30-degree angle 

approximately every foot, both horizontally and vertically, 

inside the entire square area of each of the structure. 

Before spraying began,using a 7 million BTU jet heater,the 

crew heated each structure, eliminating any residual moisture 

from the concrete surface.This took approximately 40 

minutes. In the spray rig, a bigger heater unit had been 

installed to heat the Spraywall material, while the 75 ft of 

feeder lines that run from the material containers and heating/mixing 

equipment on the rig to the specially designed 

Graco spray gun were wrapped with pipe foam insulation to 

help keep the material at the proper constant temperature. 

Typically, the spray application will commence at the bottom 

of the structure with the sprayer applying the material 

to one side of the structure from the manhole bench, turning 

around, applying it to the opposite side and working 

upward. In this case, Team Elmers had to approach the 

application a different way. “Because of the depth and 

groundwater infiltration, we started at the top and worked 

our way to the bottom,” Prescott explains.“That way, if we 

did encounter a leak, we weren’t chasing it as the top was 

already sealed so it wouldn’t have anywhere to go.” An 

application of 250 to 300 mils thick was applied to all surfaces 

of the structures. Each manhole required approximately 

four to five hours of spray time with preparation for 

each taking approximately one to two days each. 



Although the Region of Peel was skeptical about the technology 

and it being able to provide the strength and structural 

integrity officials were looking for, Team Elmers successfully 

demonstrated the benefits and effectiveness of 

spray-applied polyurethane technology under less than 

ideal conditions.The budget for the project was approximately 

$240,000. The client was so pleased with the outcome 

of this solution that it is now being considered for use 

in several other rehabilitation projects within its system. 

Moving to Points South… 

Manhole rehabilitation in warmer,coastal climates brings 

its own set of challenges. National Pipe Services (NPS), the 

Sprayroq certified partner for Florida, was tasked with performing 

sewer system rehabilitation for the affluent vacation 

resort island of Long Boat Key. 

Just like the Team Elmers project, weather conditions can 

greatly affect how a project is managed and approached. In 

the case of Long Boat Key, extremely high water tables, tidal 

patterns,daily rains and extremely high temperatures were all 

important considerations in ensuring a successful outcome. 

“Long Boat Key is extremely proactive when it comes to 

the management and maintenance of its infrastructure system.To 

help eliminate extreme [inflow-and-infiltration] levels 

that were impacting the quality of wastewater treatment 

in the community,[city officials] knew one good spot 

to start was in their manholes and lift stations,” says NPS 

vice president Ron Wilkes. 


MANHOLE FOCUS 

NPS was contracted to begin the work of rehabilitating 

28 manholes and a 17-ft deep lift station situated at the 

island’s marina in June 2007. During the summer months, 

it rains daily at a level of 1 to 2 in. over a short one- to twohour 

period in late afternoon. This rain pattern, coupled 

with high temperatures, hydrogen sulfide levels, humidity 

and tidal patterns, impact both underground structures 

and repair crews significantly. 

To overcome these challenges, crews were outfitted with 

protective gear and special cooler vests to combat the risks 

of heat stroke and dehydration.NPS performed any required 

pressure washing, injection grouting and sealing work for 

each structure during low tide.“By timing the work in this 

way, the grout and mortar has sufficient time to set before 

high tide occurs approximately six to eight hours later,” 

explains NPS business development manager Rodney Jones. 

“This scheduling also puts the crews in a timeframe to complete 

their work and avoid the daily summer rain patterns.” 

High water tables also need to be considered in project 

planning.The manholes to be rehabilitated ranged in depth 

from 3 to 17 ft. In some areas of Florida, groundwater levels 

are just 12 to 18 in. down from the ground surface.This 

factor contributes to high levels of inflow and infiltration 

(I/I), cracking and shifting of the structures in the ground. 

Cracks are to be expected and the NPS crews were trained 

and prepared to handle them. 

The lift station posed the biggest challenge.It was unusually 

deep for its location and numerous cracks had to be 

National Pipe Services crew performing the application of the Spraywall 

spray-applied polyurethane product. 

addressed before rehabilitation could begin.A large volume 

of De Neef grout was required along with special detailing. 

In addition, the lift station serviced an active line so bypass 

pumping was required for the duration of the rehabilitation 

process. 

To aid in the pre-spray cleaning process, NPS utilized 

combination trucks for initial cleaning and removal of any 

sediment and debris. Just like the manholes, the walls were 

then pressure washed and sealing mortar creaming was 

applied. After the initial cleaning, the crews found that 

intake and outake pipe connections to the lift station were 

seriously deteriorated and extensive grouting was used to 

re-establish structural integrity and support. 

Once all of the prep work was completed, the spray 

process began with the crews taking approximately one and 

a half days to finish applying a 1-in. thick application of the 

Spraywall product per the Manatee County specifications. 

At the conclusion of the project, it was determined that 

Long Boat Key had stopped approximately 15,000 to 

20,000 gal per day of infiltration into its collection system. 

This reduction will not only save the community money in 

treatment expenses but also aids in the reduction of salinity 

levels of the wastewater in the sanitary collection system 

that Manatee County has been mandating. 

North, south, east, west, cold, hot, dry or wet, sprayapplied 

polyurethane technology is a technology worthy 

of consideration for sustainable and effective structural 

rehabilitation. With proper training, planning and execution, 

even the toughest environments can be conquered 

and old infrastructure can be returned to optimum performance 

and new assets given an extended lifespan. 

Suzan Marie Chin is the chief marketing officer and art 

director of Creative Raven, a marketing communications, 

design and production firm for those serving the water, 

wastewater and municipal infrastructure sectors. 

28 TRENCHLESS TECHNOLOGY 


September 2007 www.trenchlessonline.com


MANHOLE DIRECTORY 

Manhole Manufacturers and Suppliers 

A-Lok 

Water-Lok Connector (FS) 

697 Main St. 

Tullytown, PA 19007 

Ph: (800) 822-2565 

Fax: (215) 547-5260 

Ameron International 

Arrow-Lock (PC) 

201 N. Berry St. 

Brea, CA, 92821 

Ph: (714) 256-7755 

Fax: (714) 256-7750 

American Highway Products 

Pivoted Turnbuckle Manhole Riser 

(other) 

11723 Strasburg Bolivar Rd. NW 

Bolivar, OH 44612 

Ph: (888) 272-2397 

Fax: (330) 874-3800 

AP/M Permaform 

Permaform (SRS) Permacast (CL/PC) 

6250 NW Beaver Dr. #1 

Johnston, IA 50131 

Ph: (800) 662-6465 

Fax: (515) 276-1274 

Avanti International 

Avanti Chemical Grouts, Pumps (SR) 

822 Bay Star Blvd. 

Webster, TX 77598 

Ph: (800) 877-2570 

Fax: (281) 486-7300 

Canusa-CPS 

Wrapid Seal (FS) 

2408 Timberloch Pl., Bldg C-8 

The Woodlands, TX 77380 

Ph: (800) 441-0862 

Fax: (281) 367-4304 

Carylon Corp. 

Polyurea Spray-Seal (PC) 

2500 W. Arthington St. 

Chicago, IL 60612 

Ph: (312) 666-7700 

Fax: (312) 666-5810 

CCI Pipeline Systems 

Wrapid Seal (FS) 

P.O. Box 9365 

The Woodlands, TX 77387 

Ph: (281) 350-2100 

Fax: (281) 288-6261 

CCI Spectrum Inc. 

SpectraShield (PC, SRS) 

9716 Florida Mining Blvd. W 

Jacksonville, FL 32257 

Ph: (904) 268-4951 

Fax: (904) 268-4923 

ChemRex Inc. 

ThoRoc SP15 (CL) 

Sewerguard Epoxyliner, HBS100 (PC) 

889 Valley Park Dr. 

Shakopee, MN 55379 

Ph: (952)-496-6000 

Fax: (952)-496-6062 

CWR Holdings LLC 

The Lifespan System (SRS) 

1615 Cross Highway 

Fairfield, CT 06824 

Ph: 203-659-1300 

Fax: (203) 286-2320 

Containment Solutions 

Flowtite Rehabilitation, Manhole (SRS) 

Route 20, Box 1380 

5150 Jefferson Chemical Rd. 

Conroe, TX 77301 

Ph: (888) 409-7731 

Fax: (800) 839-4727 

Cretex Specialty Products 

Manhole Chimney Seal (FS) 

2002 S. West Ave. 

Waukesha, WI 53189 

Ph: (800) 345-3764 

Fax: (262) 542-0301 

Cues Inc. 

Urethane Mainline Sealing Equipment 

(SR) 

Vari-Seal Portable Sealing, Carts (SR) 

3600 Rio Vista Ave. 

Orlando, FL 32805 

Ph: (800) 327-7791 

Fax: (407) 425-1569 

DeNeef Construction 

Chemicals 

Chemical Cementitious Grouts (SR) 

5610 Brystone Dr. 

Houston, TX 77041 

Ph: (800) 732-0166 

Fax: (713) 849-3340 

Improved Construction 

Methods Inc. 

Nu-Wall (SRS) 

P.O. Box 5798 

Jacksonville, AR 72078 

Ph: (501) 982-7715 

Fax: (501) 982-9794 

Infrastructure Repair 

Systems 

InfraPoxy (PC) 

4301 A. 34th St. N 

St. Petersburg, FL 33713 

Ph: (727) 327-4216 

Fax: (727) 327-4118 

IPA Systems 

Drycon (PC) 

2745 N. Amber St. 

Philadelphia, PA 19134 

Ph: (800) 523-3834 

Fax: (215) 425-6234 

Kerneos Inc. 

SewperCoat (CL) 

1316 Priority Lane 

Chesapeake, VA 23324 

Ph: (757) 284-3200 

Fax: (757) 284-3300 

Ladtech 

Ladtech Advusting Rings (FS) 

6704 Meadowlark Ct. 

Lino Lakes, MN 55038 

Ph: (651) 415-1252 

Fax: (866) 397-7571 

Madewell Products Corp. 

Mainstay System (SRS) 

Mainstay Composite Liner (CL/PC) 

Madewell 806 Flexible Epoxy (SR) 

ML10 Hydraulic Cement (SR) 

7561A Industrial Ct. 

Alpharetta, GA 30004 

Ph: (770) 475-8199 

Fax: (770) 475-8167 

Manhole Systems 

Ext. Rigs for Manholes (Other) 

1780B Stoney Hill Dr. 

Hudson, OH 44236 

Ph: (800) 433-3995 

Fax: (330) 656-0709 




Miller Pipeline Corp. 

Encapseal Safe-T-Seal (FS) 

8850 Crawfordsville Rd. 

Indianapolis, IN 46234 

Ph: (800) 428-3742 

Fax: (317) 293-8502 

Multiurethanes Ltd. 

Chemical Grouts (SR) 

6214-A Kestrel Rd. 

Mississauga, Ont. L5T 1Y9, Canada 

Ph: (800) 663-6633 

Fax: (905) 564-7998 

NeoPoxy Corp. 

StructoLiner (SRS), ProtectoLiner (PC) 

SuperFlex (FS) 

27057 Industrial Blvd., Suite 208 

Hayward, CA 94545 

Ph: (510) 782-1290 

Fax: (510) 782-1292 

New Life Coatings 

(PC) 

31004 Hwy 27, P.O. Box 478 

Lake Hamilton, FL 33851 

Ph: (863) 438-8660 

Fax: (863) 439-3755 

NPC Inc. 

Joint Seals (Other) 

250 Elm St. 

Milford, NH 03055 

Ph: (603) 673-8680 

Fax: (603) 673-7271 

Parson Environmental 

Products Inc. 

MH Liner (CL), Quick Plug (SR) 

Parsonpoxy SEL-80 (PC), 

Parsonpoxy FP (FS) 

P.O. Box 4474 

Reading, PA 19606 

Ph: (800) 356-9023 

Fax:(610) 582-6064 

Perma-Liner Industries Inc. 

Perma-Flex (FS) 

Perma-Coatings (CL) 

6196 126th Ave. N 

Largo, FL 33773 

Ph: (727) 507-9749 

Fax: (727) 507-9849 

Perma-Tech Industrial 

Coatings 

Perma-Tech UX-Line 

Polyureau and PR 8003 P (PC) 

23100 Miles Rd. 

Cleveland, OH 44128 

Ph: (888) 885-4637 

Fax: (440) 338-3261 

Pipeline Seal 

& Insulator Inc. 

Riser-Wrap (SR, PC, FS, SRS) 

6525 Goforth St., 


Ph: (800) 423-2410| 

Fax: (713) 747-6029 

Poly-Triplex Technologies 

Poly-Triplex Liner Sys. (SRS) 

Union Station 

1701 Wynkoop St., Ste. 250 

Denver, CO 80202 

Ph: (303) 893-3100 

Fax: (303) 893-3102 


Press-Seal Gasket Corp. 

EZ-Wrap (FS), EZ-Stik #3 (FS) 

2424 W. State St. 

Fort Wayne, IN 46808 

Ph: (800) 348-7325 

Fax: (219) 436-1908 

Prime Resins Inc. 

Prime Flex 900LVSF (SR) 

Prime Flex 920 (SR) 

Prime Flex Hydro Gel (SR) 

2291 Plunkett Rd., Conyers, GA 30012 

Ph: (800) 321-7212 

Fax: (770) 388-0936 

Protective Liner Systems Inc. 

(SRS) 

6691 Tribble St. 

Lithonia, GA 30058 

Ph: (877) 462-6465 

Fax: (770) 484-1821 

Quadex Inc. 

QM-1s Restore (CL) 

Hydra-Plug (SR) 

4801 Crystal Hill Rd. 

Little Rock, AR 72118 

Ph: (501) 758-8628 

Fax: (501) 758-3814 


Raven Lining Systems 

Aquatapoxy (PC/SRS) 

Raven 400 Series (PC/SRS) 

13105 E. 61st St. 

Broken Arrow, OK 74012 

Ph: (918) 615-0020 

Fax: (918) 615-0140 

Reliner/Duran 

Reliner - invert only (SRS) 

Inside Drop Bowls (SRS) 

Stainless Steel Pipe Straps (SRS) 

Inside Drop Bowl (other) 

53 Mt. Archer Rd. 

Lyme, CT 06371 

Ph: (800) 504-8008 

Fax: (860) 434-3195 


MANHOLE DIRECTORY 

Sauereisen 

SewerGard (CL) 

160 Gamma Dr. 

Pittsburgh, PA 15238 

Ph: (412) 963-0303 

Fax: (412) 963-7620 

SealGuard 

SealGuard (SR) 

363 Mars-Valencia Rd. 

Mars, PA 16046 

Ph: (866) 625-4550 

Fax: (724) 625-2392 

Sealing Systems Inc. 

Infi-Shield External Sealing Product 

(FS), Flex Seal Utility Sealant (FS), 

(PC) and (SRS) 

9350 County Rd. 19 

Loretto, MN 55357 

Ph: (763) 478-2057 

Fax: (763) 478-8868 

Southwest Concrete Products 

Con-plast Plastic Liner System (PC) 

519 S. Benson Ave., Ontario, CA 91762 

Ph: (909) 983-9789 

Fax: (909) 983-4187 

Southwestern Packing and 

Seals 

Rainstopper (FS) 

6905 Westport 

Shreveport, LA 71149-0369 

Ph: (318) 687-4330 

Fax: (318) 687-4337 

Sprayroq Inc. 

SprayWall (PC) 

4707 Alton Ct. 

Birmingham, AL 35210 

Ph: (205) 957-0020 

Fax: (205) 957-0021 

Standard Cement 

Materials Inc. 

Reliner MSP (CL) 

Eposil Fusion Bonded System (CL) 

Standard/Mainstay DS-4 Epoxy 

Coating (PC) 

5710 W. 34th St. Suite A 


Ph: (888) 278-1337 

Fax: (713) 680-1017 

Stephen’s Technologies 

(SR) 

31004 Hwy 27, P.O. Box 478 

Lake Hamilton, FL 33851 

Ph: (863) 438-8660 

Fax: (863) 439-3755 

Strong Seal Systems, 

a Division of The Strong Co. 

Inc. 

Strong-Seal (CL) 

4501 Emmett Sanders Rd. 

P.O. Box 9209 (zip: 71611) 

Pine Bluff, AR 71601 

Ph: (800) 982-8009 

Fax: (870) 850-6933 

Terre Hill Composites, 

a Division of Terre Hill 

Concrete Products 

Multiplex Liner (PC) 

400 W. Main St., Suite 105 

Ephrata, PA 17522 

Ph: (717) 738-9164 

Fax: (717) 738-6946 

Tnemec Co. Inc. 

120 Vinester (PC) 

6800 Corporate Dr. 

Kansas City, MO 64120-1372 

Ph: (816) 483-3400 

Fax: (816) 483-3969 

Warren Environmental Inc. 

(SRS) 

P.O. Box 1206, Suite 2-G Carver Sq. 

Carver, MA 02330 

Ph: (508) 9478539 

Fax: (508) 947-3220 

Product 

Categories: 

(Where Applicable) 

CL Cementitious Liners 

(spray and trowelled) 

SR Spot Repairs (chemical 

grouting, plugging & 

patching) 

PC Protective Coatings 

FS Flexible Seals 

SRS Structural Repair 

Systems (monolithic 

formed cement, CIPP liners, 

structural polymer 

systems) 




Perspective 

on Pipe Bursting 

By Kevin Smith 



America is a relatively young country, but its underground 

infrastructure — water, gas and sewer distribution 

systems — is over the hill.Time is taking 

its toll on the concrete, clay, steel and cast-iron 

pipes that deliver drinking water and natural gas to us and 

carry away our wastewater. 

For most cities, it’s a problem that must be addressed 

sooner than later. Some cities are pumping water through 

pipes that are more than 100 years old, so the problem 

extends well beyond the issue of pipe failure and into the 

more serious issue of citizen health and well-being. 

America’s cities are facing a problem 

that collectively involves millions of miles 

of pipe and easily tops the trillion-dollar 

mark. Individual cities are looking at hundreds 

of miles of pipe and millions of dollars 

in budget-busting expense, not to 

mention the traffic nightmares associated 

with pipe-replacement projects and the 

frustrating interruption of gas and water 

services to homes and businesses in the 

vicinity. 

There might be cause for despair if the 

only way to replace water, gas and sewer 

pipe was the time-consuming process of 

ripping up roads and yards by open-cut 

excavation.Thank goodness it’s not. 

Pipe bursting is a pipe replacement 

method that is rapidly gaining popularity 

because it saves time and money — lots 

of time and money (estimates vary, but 

range from 60 to 85 percent less than the 

excavation and restoration costs of traditional 

open-trench replacement methods). 

Pipe bursting is to traditional infrastructure 

repair as angioplasty is to openheart 

surgery — a minimally invasive alternative 

that accomplishes the same task 

with significantly less expense and recovery 

time. 

There are two main types of pipe bursting 

systems: pneumatic and static pull. 

Each offers unique benefits depending on 

the type of pipe and soil conditions, but 

they all replace old pipe by pulling or 

pushing new pipe — usually HDPE — 

through the old, expanding or bursting 

the old pipe in the process. The fragmented 

old pipe is simply pushed into 

the soil immediately surrounding the new 

pipe. 

The process begins, of course, with the 

contractor or municipal worker performing 

a thorough survey of the construction 

site to check for the location of nearby 

utilities.Unlike open-trench construction, 

the pipebursting process requires the 

excavating of a small entry pit at the 

beginning of the planned installation, just 

enough space for the bursting unit and 

one operator and an exit pit (in many 

cases, the exit pit is a manhole). A sepa- 



rate power pack is positioned outside the entry pit on the 

surface. 

During the pneumatic pipebursting process, the 

pipebursting tool is guided through the old “host” pipe by 

a constant tension winch. As the tool travels through the 

host pipe, it breaks the host apart with a percussive 

action, displacing the fragments into the surrounding soil. 

Pneumatic pipe bursting systems are typically used for 

fracturable pipes, such as clay and concrete.They are generally 

less expensive than static systems,one of the biggest 

reasons why pneumatic systems are used in 80 percent of 


the world’s pipe replacement procedures. But when the 

host pipe is made of steel, cast iron or ductile iron, a static 

pipebursting system is usually required. 

Static pipebursting systems 

have been growing in popularity 

over the years because 

of their ability to replace virtually 

any type of pipe. 

Instead of the percussive 

action of pneumatic bursting 

tools, a static system utilizes a 

configuration of specially 

designed heads and an 

expander to split the host 

pipe. The static bursting unit 

pushes a series of threaded 

steel rods through the host 

pipe. When the rod string 

emerges into the exit pit, a 

bursting head and the replacement product are connected 

to the rod string. As the bursting head is pulled back 

through the host pipe,it splits the host pipe,the fragments 

are pushed into the surrounding soil, and the replacement 

product is installed along the same line and grade as the 

utility being replaced.After the pipe is replaced, the only 

restoration is to the area affected by the small entry and 

exit pits. 

Pipe bursting is increasingly recognized as a long-term 

In short, pipebursting systems enable 

municipalities to finally do what, in many cases, 

budgets and resources have prevented. 

Sooner or later, our aging infrastructure 

has to be replaced. With pipebursting systems, 

the process can be completed much sooner. 

solution to a long-term problem. Nationwide, more than 

10,000 miles of water, sewer and gas pipe have been 

replaced economically and efficiently using pipebursting 

systems. With these systems, 

municipalities can replace 

their disintegrating steel, 

iron, clay and concrete pipe 

with durable, flexible, longerlasting 

and corrosion-resistant 

HDPE pipe. They can 

upsize main and lateral service 

lines to meet the needs of 

expanding urban populations 

and to relieve overstressed, 

overloaded facilities.And they 

can more easily replace pipe 

in congested urban settings, 

established neighborhoods 

and other areas where environmental 

concerns prohibit open cutting. 

In short, pipebursting systems enable municipalities to 

finally do what, in many cases, budgets and resources have 

prevented. Sooner or later, our aging infrastructure has to 

be replaced. With pipebursting systems, the process can 

be completed much sooner. 

Kevin Smith is product manager with The Charles Machine 

Works Inc., Perry, Okla. 



Executive-Caliber Conferences for Executve Decision-Makers 

November 27-28, 2007 

Atlanta, Georgia 

Asset Management: 

Bridging the Gap Between 

Theory and Practice 

Utility Asset Management is the wave of the future. To keep pace with regulations 

and state of the practice in the water and wastewater fields, a functional asset management 

program is a necessary component of doing business. Implementing an asset management 

program is a challenge, considering mounting needs and stretched budgets. 

Sponsored by Underground Infrastructure Management — the leading professional journal for 

water and wastewater professionals — Asset Management: Bridging the Gap 

Between Theory and Practice addresses the latest advances and practices in the 

field, and the steps to take in getting an asset management program started. 

Who Should Attend? 

Mayors, city managers, public works directors, city planners, engineering directors, 

consulting engineers, and private water company CEOs 

Conference Contact Information: 

For more information and to register for the Asset Management for Water and Wastewater 

Systems conference, please visit our website at www.uimconferences.com or call 

(330) 467-7588 


WEFTEC PREVIEW 

WEFTEC 2007 Meets 

in San Diego 

By Pam Stask 

Water and wastewater professionals from around the 

world can quench their thirst for knowledge and 

new technologies by attending WEFTEC 2007.The 

largest annual water quality conference and exhibition in 

North America will be held Oct. 13-17 at the San Diego 

Convention Center in San Diego. 

WEFTEC, which celebrates its 80th year, will welcome 

more than 18,000 water and wastewater professionals and 

experts. The latest technologies, practices, regulations and 

solutions in water quality will be addressed through educational 

sessions and workshops, as well as exhibitions from 

the industry’s top companies. 

Attendees are able to plan out their own educational 

experience by choosing from 119 technical sessions and 29 

workshops, presented by the industry’s top experts.These 

learning opportunities will focus on current issues pressing 

water and wastewater companies.Topics include:collection 

systems, membrane technologies, plant operations, regulations, 

research, residuals and biosolids, utility management, 

water reuse and recycling and water quality.The chance to 

network with other industry professionals is readily available 

for attendees. 

“As the largest conference of its kind in North America, 

WEFTEC offers water quality professionals with the best 

water quality education and training, as well as invaluable 

networking opportunities with peers and industry leaders,” 

says WEF president Mohamed Dahab. 

Those who participate in seminars and workshops have 




the opportunity to gain 

Continuing Education 

Units (CEUs) and 

Professional Development 

Hours (PDHs), depending on the amount of sessions they 

attend. 

Exhibitions play a large role in the water quality event.An 

estimated 1,000 companies are scheduled to showcase 

their newest products and technologies in the convention 

center’s 260,000 sq feet of space — with a strong presence 

from the trenchless community.Attendees can view the latest 

industry innovations up-close and ask questions directly 

to company representatives. 

The event’s keynote address will be delivered by Stanford 

University Professor Dr. Perry L. Mc Carty. A WEF member 

since 1957, McCarty received the 2007 Stockholm Water 

Prize and is notably recognized for his work in the biological 

and chemical processes of treating water. 

Eight various facility tours are scheduled to accompany 

the event. For an additional charge of $50 a tour, attendees 

can explore local sites to experience different water 

processes at work. Tour spots include: Point Loma 

Wastewater Treatment Plant, Metropolitan Biosolids Center, 

South Bay Water and Reclamation Plant, to name a few. 

WEFTEC’s 20th annual Operations Challenge will take 

place Oct. 16.Wastewater collection and treatment personnel 

will get the opportunity to showcase their skills in front 

of a live audience. The professionals’ precision, speed and 



safety will be scored as 

they compete in five different 

challenges, including: 

collection, process control, 

maintenance, safety and laboratory. The team that displays 

the best overall work will be able to boast their talents with 

a trophy. 

Some leisure activities are also scheduled to accompany 

the conference and exhibition. In keeping with last year’s 

tradition,the WERF/WEFTEC Golf Tournament is set to take 

place on Oct. 14.The event will be held at the Salt Creek 

Golf Course with a shotgun start at 8:30 a.m.Attendees can 

take a break from their learning experience and golf with 

fellow WEFTEC participants. For $110 per person, players 

receive a continental breakfast, catered lunch, green fees, 

tournament services and golf cart. All proceeds from the 

golf outing will go to the Water Environment Research 

Foundation (WERF). 

Also on Oct. 14,Water for People will host “A Taste of Latin 

America” Fundraising Event. For $50 a person, guests can 

enjoy Latin American appetizers, entertainment and receive 

two drink coupons, while learning about the Water for 

People organization.The event benefits the Water for People’s 

program countries, providing them safe drinking water, sufficient 

sanitation and hygiene education programs. 

For more information about WEFTEC07, visit 

www.weftec.org. 

Pam Stask is an editorial assistant for Trenchless Technology. 



EXHIBITORS 

BW Technologies 

BW Technologies by Honeywell introduces 

the GasAlertMicroClip, a revolutionary, 

multi-sensor confined 

space gas detector. 

By simultaneously 

displaying O2, H2S, 

CO2 and %LEL, the 

GasAlertMicroClip 

offers a full-function, 

multi-gas instrument 

performance with the 

compact size and 

ease-of-use of a disposable 

detector. The size, long life and 

high specificity of the sensors are central to 

the compact, yet functional design. 

The GasAlertMicroClip features fieldselectable 

user options allowing customization 

to virtually any application. At just 5.6 

oz., GasAlertMicroClip is the world’s best 

value in confined space gas detectors. For 

more information, visit www.gasmonitors.com. 

RS# 100 

Carlon 

Carlon announces the re-introduction of 

its CircuitSafe NEMA line of polycarbonate 

electrical enclosures. Available in standard 

sizes ranging from 6 

in. x 4 in. x 4 in. to 16 

in. x14 in.x 6 in., these 

enclosures have set the 

standard for enclosure 

design, features, aesthetics 

and value for 

more than 15 years. 

CircuitSafe NEMA is 

available with clear or opaque covers, multiple 

latching options and a panel management 

system that supports the easy installation 

of your components. With a UL-50 listing 

of Type 4X, a UV rating of F-1, combined 

with the strength, durability, and 

weather ability of polycarbonate construction, 

CircuitSafe NEMA is a great solution 

for water and outdoor applications. For 

more information, visit www.carlon.com or 

booth # 6750. RS# 101 

CertainTeed 

CertainTeed engineered the first completely 

non-metallic, corrosion resistant, 

restrained-joint PVC piping system for 

trenchless construction and offers a vari- 

ety of contractor-proven Certa-Lok products 

for water, sewer and conduit applications. 

The latest member of this growing 

family, CertaFlo GreenLine, is supplied in 

standard green color and shorter lengths 

for ease of use on Sewer pipe bursting 

projects. 

Certa-Lok products require no special 

heat-fusion equipment, resulting in significant 

labor and money savings. Joints are 

assembled as the 

directional drilling or 

pipe bursting pullback 

continues; long 

strings of pre-fused 

pipe are not necessary, 

meaning streets 

remain open and 

clear. CertaFlo 

GreenLine holds precise grade, a very 

important factor in gravity sewer applications, 

thanks to PVC’s superior stiffness. In 

addition, higher-strength PVC requires a 

much thinner wall in order to achieve the 

same mechanical properties. Comparing 

common sizes, PVC will have a larger 

inside diameter, resulting in significantly 

improved flow performance and efficiency 

that can only be matched by upsizing 

alternate thermoplastic materials (at significant 

cost). RS# 102 




CCI Pipeline Systems 

CCI Pipeline Systems provides outstanding 

quality products to the water and sewer 

industry, such as 

WrapidSeal and a line of 

casing spacers. 

WrapidSeal is a heatshrinkable 

encapsulation 

system used to eliminate 

inflow, infiltration and 

exfiltration in sanitary 

and storm sewer systems. 

WrapidSeal is used to seal the manhole riser 

joints, where the frame and cover contact the 

cone section, as well as the main line bell 

and spigot connections. CCI’s line of casing 

spacers are available in stainless steel and 

carbon steel (with a fusion bonded copolymer 

based thermoplastic coating) and 

durable glass filled polymer runners. CCI 

also offers a line of high density polyethylene 

spacers. For additional information, visit 

www.ccipipe.com or booth #5609. RS# 103 

CUES 

CUES, a leading manufacturer of CCTV 

pipeline inspection equipment and asset 

inspection/decision support software, 

announces the release of 

the K2 Series portable 

CCTV pipeline inspection 

system. The K2 portable 

Base Station can 

be mounted in a wide 

range of vehicles and 

trailers or used as a 

stand-alone system. The 

compact K2 Base Station is supplied with 

an ergonomic hand-held control that operates 

all CUES transporters and pan and 

tilt/zoom cameras. 

The K2 Base Station features built-in diagnostics 

for the entire system, including the 

video cable. The portable K-2 video cable 

reel features automatic payout to minimize 

cable drag on the self propelled transporter/camera 

to maximize pull distance in 

the pipe. The K2 reel control console includes 

variable speed control, automatic levelwind, 

and an emergency shutoff. Increased video 

cable reel capacity is provided to maximize 

distance for each inspection run. An optional 

collapsible heavy-duty handle can be supplied 

on the K2 Base Station and reel to 

facilitate portability. For additional information 

visit, www.cuesinc.com. RS# 104 

Duke’s Root Control 

Duke’s Root Control Service is an effective, 

proven method for controlling every day 

sewer line root problems. More than 2,000 

municipalities have used Duke’s services in 

more than 90 million ft of sewer pipe. Duke’s 

applies EPA-registered products that kill tree 

roots without harming above ground vegetation. 

The material is injected as foam, from 


manhole to manhole, killing all roots 

on contact and also 

inhibiting regrowth 

for three to five 

years. Duke’s guarantees 

against stoppages 

for two years 

and for three years 

on repeat applications 

or your money 

back. Duke’s specializes in problem 

easements, big pipe and off-road work. 


Duke’s saves you money by eliminating 

routine cutting and costly sewer stoppages. 

For more information, visit 

www.dukes.com. RS# 105 

Easy Liner 

Easy Liner LLC announces an innovative, 

ground-breaking method for sewer 

service contractors to enter the CIPP 

rehabilitation services market, with no 

long-term commitments and little to no 

risk. 



The Five-Step Test Drive Plan offers 

contractors a way to expand their range 

of rehabilitation services by allowing 

them to try the 

technology on a 

real project 

before they buy 

it. This first-of-itskind 

program 

provides: Sales 

and marketing 

assistance to locate a contract, pre-bid 

and submittal assistance, on-site training 

and job assistance with the rental equipment, 

project planning and execution and 

the ability to generate profits. 

The 5-in-1 CIPP rental rig is equipped to 

perform manhole to manhole mainline 

rehabilitation, point repairs, lateral connections, 

lateral rehabilitation directly from 

the main and industrial/commercial application 

repairs. The program is available 

for various length rental periods to suit the 

contractor’s requirements. RS# 106 

Godwin Pumps 

Godwin Pumps introduces new, 3-in. 

solids handling 4- x 4-in. CD140M and 8x 

6-in. CD180M portable diesel pumps 

offer both elevated heads and solids han- 

dling capabilities without sacrificing flow 

rate. The pumps achieve total dynamic 

heads to 280 ft, solids handling to three 

inches in diameter and flows to 1,100 gpm. 

Available with John Deere, Caterpillar 

or any customer-specified diesel engine or 

electric motor, the CD140M and CD180M 

pumps are automatic self-priming Dri- 

Prime pumps with the ability to prime and 

re-prime from dry. Featuring an oil bath 

mechanical seal, 

the pumps run 

dry with out damage 

and are ideal 

for intermittent 

flow conditions 

associated with 

bypass pumping and back-up municipal 

lift station applications. The CD140M and 

CD180M pumps round out Godwin’s elevated 

head series of high volume solids 

handling pumps, which includes the 

CD160M 6- x 6-in. pump. RS# 107 

HOBAS Pipe USA 

HOBAS Pipe USA has expanded its 

product line up to 110 in. in diameter. 

Acceptance is also expanding along with 

size of the pipe and it can be found in the 

infrastructures of most U.S. municipalities. 

"Michael Byrne Byrne Equipment recognized by by 

contractors across across the the country country as as the the toughest 

machines on on the the market!" 

MB D60-72-1.2M 

225HP CAT 

Rent or Buy 

* Boring Machines * Augers * Cutting Heads 

* Adapters * Rebuilds * Gearboxes * Gears 

* Tunnel Shields * Custom Machines 

Sales Service Rentals 

800-613-7206 

www.byrnegroup.com e-mail jweist@byrnegear.com 

1855 Earth Boring Rd, Mansfield, Ohio 44903 

HOBAS pipe is suitable for sliplining, 

jacking, microtunneling all other installation 

methods for new construction and 

rehab. HOBAS started 

manufacturing 

this new size when 

the customers 

requested it. HOBAS 

now produces pressure 

and gravity 

pipes from 18 to 

110 in., plus teebase 

manholes, elbows and other specialty 

items. Leak-free, push-together 

joints reduce installation time and costs. 

Centrifugally cast, fiberglass-reinforced, 

polymer mortar HOBAS pipe is 

inherently corrosion resistant and lasts 

100 years or more. Key applications are 

sanitary sewers, potable water and corrosive 

environments. RS# 108 

Inliner Technologies LLC 

Inliner Technologies LLC is one of the 

largest cured-in-place pipe (CIPP) product 

renewal companies in the United States. 

Through a highly trained network of 

licensed installers, consisting of engineering, 

sales and installation personnel, the 

company’s technology has been utilized 




to complete the lining of more than 9 million 

lf of pipeline. 

Inliner Technologies has advanced the science 

of CIPP materials to provide its contractors 

with the resources to install by inversion 

techniques, as well as a 

patented method of 

pulling in and inflating 

the product. The nonwoven 

tubes used as the 

backbone of the Inliner 

process are carefully 

engineered to minimize 

any stretch during either 

installation method, 

while protecting the resin from washout and 

contamination. 

Inliner Technologies provides a host of 

services to its licensed contractors, including 

but not limited to engineering design, technical 

support, national marketing, training, 

research and development of new products 

and existing process improvements. RS# 109 

Insituform Technologies Inc. 

Insituform Technologies Inc. will offer an 

impressive display featuring both trenchless 

gravity and pressure pipe solutions. The 

Insituform booth #5631 will feature cured-inplace 

pipe (CIPP) products for sanitary and 

storm sewers. These 

products include 

iplus Composite 

and iplus Infusion 

pipe, as well as 

Insituform CIPP. 

iplus Composite pipe is Insituform’s nextgeneration 

CIPP offering increased strength 

with less thickness, improving flow and 

capacity. iplus Infusion is a groundbreaking 

product that is proven to be more reliable 

and efficient. Booth #5631 will also showcase 

Insituform Blue solutions for potable 

water pipes. While Insituform has been rehabilitating 

water pipes for close to 10 years, a 

new development called iTAP has lauded the 

introduction trenchless technology to the 

drinking water market. iTAP is Insituform’s 

innovative method of reinstating service connections 

without digging them up. 

Insituform Blue also offers a variety of 

drinking water solutions including 

Thermopipe, PolyFlex/Polyfold and Insituform 

PPL (Pressure Pipe Liner). RS# 110 

IPL Technologies 

The Eyebotix MICRO Cutter by IPL 

Technologies is a device for use in pipes with 

a nominal diameter of 3 to 6 in. (optional to 

8 in.). The small outer diameter of only 2 ¾ 

in. and the short rigid lengths of the components 

allow an excellent access through 

elbows. Elbows can be accessed from 4-in. 

diameter openings. 

The Eyebotix MICRO Cutter allows the 


opening of laterals and sewage pipes. 

Preparatory work 

such as the mortising 

or removal of 

roots and similar 

operations can also 

be carried out. The 

device can also be 

used for gas, 

potable water and others. 

The mortising operation is carried out 


under the constant surveillance of the 

operator with the help of the integrated 

camera. The mortiser is also equipped 

with two infinitely variable halogen 

headlights. The device is completely 

protected against penetrating water 

and filled with nitrogen. All control elements 

including the monitor are contained 

in a suitcase. RS# 111 



ITT Flygt 

ITT Flygt recently introduced the 2600 

series of dewatering pumps, including six 

models with output ranges of 1.3 to 27 

hp. The pumps feature 

innovative hydraulics, 

fewer components, 

new materials and an 

ergonomic design. 

The patented 

DuraSpin hydraulic 

system improves wear 

resistance and sustains performance over 

time. A single screw enables easy adjustment 

for maximum pump performance. 

The results of all of these features: 

unmatched wear resistance, consistent 

long-term performance, resulting in the 

lowest cost of ownership. For more information, 

visit www.flygtus.com. RS# 112 

Janssen 

The Janssen Process Co. announces 

the introduction of the Janssen Lateral 

Renovation System, a new technology for 

structurally repairing the sewer connection 

at the main. Janssen applies robotic 

technology to renovate the lateral connection 

to the main and is the only 

trenchless rehabilitation alternative 

The HDD Company, Inc. 

Rick Evans or Neil Swope 

3161 Cameron Park Dr. Suite 215 

Cameron Park CA 95682 

Tel #530-676-5705 • Fax # 530-676-3605 

Horizontal Directional Drilling is all we do, every day. Our key 

people have been in the industry for more than 20 years and we 

have completed more than 1000 bores in every type of soil conditions 

imaginable. We have installed pipelines and utilities for 

ocean outfalls, under rivers, ship channels, creeks, wetlands, 

buildings and highways. Every bore that we have ever attempted 

has been successfully completed. 

Our reputation has been built on our commitment to our clients 

and their projects. 

For design assistance or installation of an HDD project, no matter 

how big or small, please give us a call. 

Three rigs: 300 ton 200 ton and 30 ton 

Crossings up to 6000 feet in length and 48" in diameter 

addressing the true structural repair at the 

connection. Using a 

unique resin injection 

methodology, Janssen 

is a very cost-effective 

alternative to traditional 

dig and replace/repair 

programs. Janssen 

technology has been 

successfully introduced 

in six municipalities in 

the United States in 

2007. To learn more, visit booth #6624 

or www.janssenprocess.com. RS# 113 

Logiball 

Over the last 25 years, Logiball has 

designed and manufactured equipment 

for the trenchless rehabilitation of sewers. 

Logiball has developed a complete line of 

mainline, lateral connection and push 

type test and seal 

packers that have 

been used to stop 

millions of gallons 

of infiltration within 

the collection 

system. Its product 

line includes multi-size inflatable test & 

bypass plugs, the Securimax inflatable 

plugs, specialized carrier packers for 

trenchless point repair systems, lateral 

cleaners from the mainline sewer and custom 

made equipment. See Logiball at 

Booth #4436. RS# 114 

Marsh-McBirney 

Hach Co. announces a new program 

that includes one free year of Web-based 

Flow Meter Data Storage and Access for 

purchasers of the Marsh-McBirney Flo-Dar 

XT or Sigma 930T Web-enabled Sewer 

Flow Meters, Hach 

company brands. 

Flow meter users 

can now manage 

their flow meters 

from the comfort 

of their office or 

wherever they may 

be via a Web 

browser and secure Web site. For more 

information, visit www.marshmcbirney.com/webdata. 

RS# 115 

Michels Corp. 

Michels Corp. stands at the forefront of 

the utilities construction. Michels Pipe 

Services, a division of Michels Corp., is a 

leader in the rehabilitation of existing 

municipal and industrial pipeline systems. 



Specialties include cured-inplace-pipe, 

pipe bursting, 

chemical grouting and sealing, 

sliplining and structural 

rehabilitation. Michels is also 

recognized around the globe 

as “the industry leader in 

horizontal directional drilling.” RS# 116 

Nu Flow 

Until now, the only way to effectively protect 

municipal water from water-borne contaminants 

has been reverse osmosis. This is 

no longer a practical solution, 

as it only filters water at one 

plumbing fixture. Nu Flow’s 

solution is the Aqua Source 

Guardian. This system is 

approved by the National 

Sanitary Foundation and 

requires very little water for 

flushing out impurities. The 

system removes disinfectant 

by-products, sedimentation, 

and pesticides down to .02 microns, providing 

clean, safe water from every tap. For 

more information, contact Nu Flow at (800) 

834-9597. RS# 117 

Poly-Triplex 

Poly-Triplex Liner System has proven 

longevity with a track record of success in the 

wastewater environment, with more than 

10,000 structures lined and more than 1,000 

structures installed over 10 years. The patented 

Poly-Triplex Liner is a three-layered, fiberglass 

and epoxy system 

that contains a 

vital internal nonporous 

membrane. 

Once saturated at 

the jobsite, the liner 

is cured-in-place 

using a patented system 

of air pressure and steam, forming a laminated 

composite bonded to the host structure. 

Pressurized into the pores, cracks and crevices 

of the surface, the resin bond prevents the 

liner from being pushed off from groundwater 

infiltration. The internal non-porous membrane, 

encapsulated in the center of the laminated 

composite, provides a permanent barrier 

to gas penetration through the liner, halting 

chemical attack of the host structure, as well as 

providing a permanent barrier to prevent infiltration 

of groundwater into the collection system. 

For more information, visit www.polytriplex.com. 

RS# 118 

Rain for Rent 

Reduce bypass pumping and dewatering 

operational and maintenance costs with Rain 

for Rent’s new 8-in. DV-200c pump. Superior 

fuel efficiency, increased hydraulic efficiencies 

up to 81 percent, solids handling to 3.375 in. 


and great suction lift performance make 

the DV-200c the best choice for tough 

pumping projects. 

The galvanized trailer 

resists corrosion, 

eliminating expensive 

repainting costs. 

Flows up to 4,500 

gpm and heads up 

to 260 ft make the 

DV-200c a leader in pump performance. 

RS# 119 


Sauereisen 

Sauereisen continues to innovate with 

materials and application methods for 

the municipal wastewater industry. 

Since entering the market more than 20 

years ago, Sauereisen has earned a 

solid reputation in the restoration and 

protection of wastewater infrastructure. 

Sauereisen’s series of epoxy polymers, 

SewerGard, extends longevity to 

underground structures due to its low 

permeance. A full line of materials to 



restore structural integrity and prohibit 

I&I are available too. Sauereisen is dedicated 

to solving 

wastewater infrastructure 

issues in 

an economical 

manner. From 

collection systems 

to treatment 

plants, they offer 

the experience 

and credibility that generates confi- 

dence. For additional information, visit 

www.sauereisen.com or booth #5010 

at WEFTEC ’07. RS# 120 

Sprayroq 

Sprayroq, an industry leader in the 

development of spray-applied 

polyurethane solutions for infrastructure 

rehabilitation, corrosion management 

and infiltration control, will take a bold 

step this fall to join the growing community 

of companies promoting a Green 

Product line to be used for corrosion coatings 

in our cities’ wastewater collection and treatment 

systems. 

Sprayshield Green will replace between 25 

to 50 percent of its petroleum-based 

components 

with a unique, environmentally-friendly,renewable 

source material. 

Sprayroq looks forward 

to offering this unique 

product option for communities 

and corporations 

worldwide that are actively 

incorporating or considering adding green 

solutions into their overall maintenance and 

management plan. No compromising quality. 

No compromising the environment. For more 

information, visit Sprayroq at Booth 5351, 

Hall C. RS# 121 

Thompson Pump 

Thompson Pump promotes its 4-in. high 

efficiency dry-priming pump, the 4JSCM, for 

WEFTEC. The 4JSCM is a 

more powerful, lighter 

weight and more compact 

4-in. pump that 

handles solids up to 3 in. 

With a flow capacity of 

1,450 gpm and a shut 

off head of 130 ft, this 

pump is ideal for bypass and construction 

dewatering applications. RS# 122 

TT Technologies 

TT Technologies will be displaying the 

Grundoburst static pipe bursting system at 

WEFTEC 2007. The Grundoburst is ideal for 

the trenchless replacement of water lines. The 

system utilizes a specially 

designed bladed 

cutter head to 

make bursting ductile 

iron and steel pipe 

possible. Patented 

QuickLock bursting 

rods are linked together, not threaded. This 

saves time, prevents twisting and extends the 

life of the cutter head over threaded bursting 

rods. Models range in pullback force from 

60,000 to 650,000 lbs. Grundoburst models 

are designed for bursting 4- to 48-in. diameter 

pipe. RS# 123 

U.S. Pipe 

U.S. Pipe’s PROTECTO 401 Lined Ductile 

Iron Pipe and Fittings provide excellent protection 

and the strength necessary to do the job in 

tough sewer pipe applications. PROTECTO 

401 has been used successfully in thousands of 

sanitary sewer applications and has been 

proven in both laboratory testing and more 

than two decades of actual sewer service in 

Ductile Iron pipe and fittings. 

PROTECTO 401 Ceramic Epoxy Lining was 



designed specifically for the protection of 

Ductile Iron for sanitary sewer service by providing 

reliability similar to cement mortar lining 

in drinking water service but having the excellent 

chemical resistance of 

a novolac epoxy. Easily 

recognized brownish red 

bells and spigots, as well 

as stenciling showing “for 

sewer only,” ensure that 

the correct lined pipe is 

used for sewer service. This combination of 

design and formulation has resulted in a 

Ductile Iron pipe lining system with excellent 

durability and resistance to undercutting, abrasion 

and chemical attack. RS# 124 

Ultraliner 

PVC Alloy is a term used to describe 

Ultraliner’s uniquely enhanced PVC pipe, 

which has been specifically engineered for 

use in trenchless applications. While the 

Ultraliner pipeliner 

provides full, 

independent 

structural integrity, 

it also has extremely high-impact strength and 

a high degree of dimensional stability, with the 

ability to relieve high levels of stress, without 

structurally compromising the material. As a 

result, Ultraliner will conform almost exactly to 

the shape of an existing pipe, including size 

transitions, tight bends, offset joints and other 

irregularities. Ultraliner can be re-installed 

over protruding taps and it will even conform 

tightly to the shape of corrugated pipe. An 

important characteristic of Ultraliner is the fact 

that there is no significant shrinkage, neither 

radially nor longitudinally, after it has been 

installed. Therefore, it maintains its tight fit for 

the design life of the material. Ultraliner is 

manufactured in sizes 4 to 30 in. in both ASTM 

1871 and 1504. RS# 125 

Uni-Bell PVC Pipe 

The rehabilitation of existing sewer and 

water infrastructure is a challenge faced by all 

utilities. PVC has a proven track record of 

long-term performance 

and leads the water and 

sewer industry in market 

share. Utilities, design 

engineers and contractors 

are benefiting from 

the application of PVC pipe products to their 

pipeline rehabilitation and trenchless installation 

needs. If you would like more information 

or have specific questions regarding the application 

of PVC pipes for various trenchless 

and/or rehabilitation needs, you are invited to 

contact the Uni-Bell PVC Pipe Association or its 

member companies. RS# 126 

Watson-Marlow Bredel 

Watson-Marlow Bredel, a leading manufacturer 

of peristaltic pumps, will showcase its envi- 


ronmental processing solutions, including 

its new 720 Series peristaltic pumps, in 

Booth # 2701. All Watson-Marlow Bredel 

pumps on display offer an enduring solution 

for tough environmental applications. 

Unlike other pump types, the highly abrasive 

nature of sludge and slurries does not 

affect pump life. Each pump is virtually 

maintenance-free 

with no expensive 

seals to replace, no 

check valves to clog 

and no rotors and 

stators to wear out. 

Also, hose replacement 

is quick and easy with a self-loading 

design. 

The 720 family of peristaltic pumps 

comes with the now-standard Watson- 

Marlow Bredel five-year warranty. 

Offering a smaller footprint, the 720 

Series provides low shear and non-contacting 

pumping with minimal downtime. 

Also on display this year is the heavyduty 

SPX pump, which reliably handles a 

variety of harsh materials, such as sludge 

and abrasive slurries. The SPX is ideal for 

high-flow, high-pressure situations, capable 

of handling flow rates of .08 gpm to 

400 gpm at 230 psi. Advanced hose technology 

enables dependable pumping of 


corrosive chemicals at high flow and pressure 

rates for a long period of time. For 

more information visit www.watson-marlow.com. 

RS# 127 

Weston Solutions Inc. 

Weston Solutions Inc. is an employeeowned, 

leading redevelopment and construction 

firm, delivering comprehensive 

solutions to 

complex problems 

for industry 

and governmentworldwide. 

For 50 

years, customers have trusted WESTON to 

provide innovative and practical solutions 

to their most complex design, construction, 

environmental remediation, redevelopment 

and compliance challenges. 

Weston has a wealth of experience 

implementing integrated solutions that 

meet or exceed environmental, economic, 

and sociopolitical requirements, and has 

helped a number of federal, state, local 

and industrial clients reorganize their 

water strategies to manage their water 

resources more efficiently, providing costeffective, 

sustainable solutions that benefit 

all stakeholders. RS# 128 


INTERNATIONAL 

Grouted-in-Place Pipe 

Method Used to Reline 

German Sewer Lines 

By Jens Kirste 

Nowadays sewer network owners and operators 

are faced with a huge number of different trenchless 

methods, materials and suppliers to seal and 

rehabilitate their pipes.This applies especially for 

cross-sectional pipe dimensions up to approximately 1,000 

mm inside diameter (I.D.). Above that size, the number of 

approved systems and qualified installers reduces to a comparably 

small amount. 

Since the early 1990s, Trolining GmbH, Troisdorf, 

Germany, has been an internationally recognized expert in 

the field of trenchless pipe rehabilitation.Its patented grouted-in-place 

pipe (GIPP) method has been successfully 

installed in about 20 countries around the globe.The continuously 

growing demand for reliable methods for the reinstatement 

of large sewers was a clear sign for Trolining to 

further increase the effectiveness of its system in that market 

segment. Pipe sizes between 800- and 2,000-mm I.D. 

today represent Trolining’s main field of application, regardless 

of whether the cross-sectional pipe profile to be 

rehabbed is circular or a special geometry. 

Studded HDPE liner inside the host pipe, just before inflation to adapt to 

the host pipe’s egg-shape, sized 1,400 x 2,100 mm. 

In the second half of 2006,Trolining completed a project in 

the City of Bielefeld, Germany. Bielefeld is a medium-size 

town with about 330,000 inhabitants and an urban area of 

258 sq km.The total length of public sewers herein is approximately 

1,840 km. Regular inspections revealed leaking and a 

variety of other damages at one of the main collectors located 

along the Mühlen Str., near the city center. Most notably, 

the joints of the brick sewer, constructed around 1898, were 

found severely eroded.In some areas,the mortar between the 

bricks was missing down to a depth of 40 mm. 

After assessment of the inspection reports, the municipality 

decided that 520 m of the sewer needed urgent repair. 

Whereas 310 m showed the standard egg-shape 1,200- x 

1,800-mm I.D., further 210 m measured 1,400 x 2,100 mm. 

A few months later, Bielefeld’s environmental authority 

released a call for tender not only containing the trenchless 

rehabilitation of the mentioned sewer lines, but also a number 

of other preparatory and adjacent works. Installation of 

a bypass line, preliminary sealing of major groundwater infiltration,rehabilitation 

of the adjacent manhole chambers and 

re-connection of the lateral pipes were just some of the performances 

requested from the bidders. 

The Trolining System 

The Trolining trenchless pipe rehabilitation system is 

based on various high-density polyethylene (HDPE) liner 

components, which can be combined in a wide range of 

alternative configurations. The heart of the system is the 

Troliner with its V-shaped embedment studs. The annular 

void created by the studs is filled with Trolining Injektor, a 

specially engineered injection grout. This high-strength 

grout fixes the Troliner liner permanently in place and provides 

the load-bearing shell of the system. 

Trolining liners are available for pipes ranging from 250to 

2,000-mm I.D. Segmental lining sheets are offered for 

rehabilitation of lines greater than 2,000-mm I.D. and for 

elbows and corners in man-size lines. The rehab system 

improves the host pipe’s flow characteristics and provides 

exceeding mechanical and chemical resistance. 

Every liner is tailor-made according to the exact measurements 

taken on the jobsite.That procedure guarantees the 

systems “close-fit” characteristics, thus limiting the cross-sectional 

reduction to an absolute minimum. Prior to the liner 

insertion, the pipe section to be rehabilitated is plugged-off 

at both ends, cleaned and visually inspected.A cable winch 

is then used to unroll each HDPE liner from its transport 

drum and draw it through the line into position.After insertion, 

all HDPE liners are welded together at their ends.The 

resulting liner — a sandwich — is then inflated with a defined 

pressure through passages in the temporary plugs closing 

the ends of the liner section. 

When the required inflation pressure is attained, the 

annular void is filled with Trolining injection grout fed from 

the downstream end. The grout’s extremely low viscosity 


ensures 100 percent grouting of the annular void, even for 

long distances.Additional grout characteristics are a defined 

material expansion and an exceeding short-term strength. 

The latter is decisive to keep the interruption time at an 

acceptable low level. 

The GIPP Method 

Despite of the GIPP method’s economic advantages, 

Trolining’s tender for the Bielefield project also succeeded 

due to the certified quality assurance and the high experience 

level in the field of large pipe rehabilitation, especially 

egg-shapes. The Trolining Double System with a wall 

thickness of 43 mm was quoted in that case — double 

meaning due to comprising two layers of studded HDPE 

liners. Additional reasons for choosing the GIPP method 

were the environmental friendliness and drinking water 

approval of HDPE, as well as the material’s compatibility 

with other lining components. State-of-the-art PE extrusion 

welding allows absolutely tight connections between the 

actual pipe liner and manhole rehabilitation sheets or the 

inverted HDPE saddles used for lateral connection. 

An exceptional difference to other lining systems was 

the special system configuration Trolining was able to provide 

for dealing with Bielefeld’s specific project needs. 

While the common Trolining Double System involves an 

outer Preliner and a smooth HDPE liner that gets inserted 

prior to the studded ones, it was omitted in that case. 

Omitting the Preliner means that the outer annular void of 

the Double System was limited at the outside 

by the host pipe itself, while the first 

studded liner represented the inside 

boundary. In that way, it was possible to 

properly re-fill all defective joints 

between the brick work and embed the 

whole interior host pipe wall into a highly 

protective alkaline milieu by direct 

adhesion of the cementitious grout. 

One year before, in August 2005, 

Trolining had successfully rehabbed a 

comparable host pipe, a pear-shape brick 

sewer, sized 1,800- x 2,250-mm I.D., by 

application of the same method. Drilling 

cores taken at this project proved the 

deep and reliable penetration of the 

Trolining grout into deteriorated brick 

wall joints. 

Project Implementation 

Before the actual system installation 

could start, a number of essential preparations 

had to be done.A major item was the 

erection of a bypass line to divert the arising 

sewage around the construction area 

for the period of work.A steel pipe measuring 

800 mm in diameter was laid over 

the ground to provide sufficient capacity 

for keeping the rehab sections dry. After 

dewatering the entire 520 m, technicians 

could access the host pipe and evaluate 

the further steps. Intensive cleaning and 

the provisional stopping of strong water 

infiltrations were required. At the same 



Here, studded HDPE liner is unwound from the coil into the insertion pit. 

time,subcontractors enlarged those manholes that were designated 

for the HDPE liners’ insertion, to chambers of 2 x 2 

m. 

About three weeks after starting the preparations, the first 

liners were installed.The common manhole distances for the 

1,200 x 1,800 mm were 60 m in average,which is a standard 

pipe length to rehab in municipal areas. More challenging 

were the manhole distances of the 1,400- x 2,100-mm host 

pipe;103 and 107 m were the lengths that had to be lined in 

one step.While liner production for diameters of 1,200 mm 


INTERNATIONAL 

A pear-shape, brick sewer, 1,800 x 2,250-mm I.D., was rehabbed with 

the Trolining Double-System. 

was limited to 85 m in the past, the mentioned distances 

required additional efforts from both Trolining’s liner manufacturer 

and the installation crew. Trolining engineers and 

site experts tackled the situation and presented the solution 

after a number of technical meetings and process improvements. 

Insertion of the 2.5-ton weighting liners occurred from 

the intermediate manhole, which separated the 210 m of 

egg-shape pipe into 103 and 107 m, both into the up-stream 

and downstream direction.Large triangle stands were placed 

next to the insertion pit to hang up the liner coils. For drawing 

the liners into the pipe,diversion rollers had to be placed 

right above the manhole chamber. After insertion of both 

studded liners, the resulting annulus was sealed by manual 

extrusion welding. Inflatable egg-shape packers were then 

used to plug the liner-package at both ends and water was 

fed in to build up a defined hydrostatic pressure. Special 

attention had to be given to the plug bracing — with a water 

column of 8 m (equal to 11.6 psi back pressure) and a crosssectional 

area of 2.45 sq m.An equivalent horizontal force of 

approximate 20 tons had to be taken by the construction 

that held the plugs in place. 

The 103- and the 107-m long pipe sections were 

rehabbed separately. Grouting of both occurred with the 

Trolining-specific mixing technology. Three standard mixing 

units were employed to prepare the injection grout. 

The Double System’s outer annular void space was filled 

first, needing approximately 1.5 hours for completion.The 

inner annulus could then be grouted within just one hour. 

After an additional 16 hours of curing, the high-strength 

grout attained the necessary short-term strength necessary 

for releasing the inside pressure from the lining system. 

Right afterward, the incoming house connections could be 

re-opened and connected. 

Jens Kirste is with technical sales at Trolining GmbH, which 

is headquartered in Troisdorf, Germany. 




INTERNATIONAL 

Motorized Small Boring Units Power 

Through Rock on U.K. Pipeline By Desiree Willis 

One of the U.K.’s largest pipeline projects is getting 

a boost from some high-powered tunneling 

machines. The Milford Haven Gas Connection 

Project — a 300-km long behemoth stretching 

across South Wales, United Kingdom — will require more 

than 110 crossings located under roads, major rivers and 

environmentally sensitive areas. 

Local contractor B&W Tunnelling is currently excavating 

24 hard rock crossings ranging from 20 to 80 m in length 

for Phase II of the project. B&W is utilizing five hard rock 

boring machines, known as small boring units (SBUs), to 

excavate the crossings in record time and with minimum 

environmental impact. 

B&W Tunnelling opted to use two 1.2-m motorized SBUs for the four 

longest crossings due to site set up and bore specifications. 

Project Overview 

The Milford Haven Pipeline will support the United 

Kingdom’s increasing requirements for imported gas. 

Liquefied natural gas (LNG) will be imported from international 

sources to two LNG terminals located in Milford 

Haven.Tankers will offload the LNG, where it will then be 

converted back to its gaseous form at the terminals before 

entering the pipeline. By 2009, the pipeline will transport 

up to 20 percent of the U.K.’s natural gas for owner 

National Grid. 

Constructed in two phases, work began on the pipeline 

in early 2006. Phase I involved a 120-km long stretch from 

the towns of Milford Haven to Aberdulais. B&W Tunnelling 

was sub-contracted by the NACAP/Land & Marine JV to 

excavate a total of 38 crossings using SBU technology.As of 

August 2007, Phase I is nearly complete, with more than 95 

percent of the pipeline in place. 

Phase II of the project will extend the pipeline another 

185 km from Felindre to Tirley in Gloucestershire. B&W 

signed the contract for this phase in December 2006, which 

consists of 24 crossings to be bored with SBUs under roadways 

and nearly a dozen rivers — 57 trenchless crossings in 

total. Many of these crossings are line and grade critical, 

requiring careful machine setup and continuous monitoring. 

The large number of crossings is one way that general 

contractor NACAP/Land & Marine is working to maintain 

environmentally sensitive areas. Tunneling under features 

such as rivers and woodland minimizes disturbances to the 

indigenous flora and fauna found in the region. Vibration 

and movement are being closely monitored, and the working 

area is restricted at several points to minimize disruption 

of the surrounding landscape. 

Machine Selection 

Two 1.2-m diameter SBU-As are being used for a total of 20 

crossings on Phase II of the pipeline project.The machines are 

a type of rock boring attachment that utilizes a full-face auger 

to excavate crossings for utility installations.The machine is 

welded to the lead casing and an auger boring machine (ABM) 

provides both torque and forward thrust to the cutting head. 

Disc cutters allow the machine to excavate medium to 

hard rock from 25 to more than 170 MPa UCS. In mixed 

ground conditions, another type of cutterhead can be used. 

This cutterhead uses disc cutters, two-row carbide cutters 

and carbide cutter bits with larger muck openings to 

accommodate soft ground and boulders. The SBU-A, available 

in diameters from 600 mm to 1.8 m, is typically used 

on drives less than 100 m in length. 

Boring for Accuracy 

B&W Tunnelling opted to use two 1.2-m motorized SBUs 

for the four longest crossings due to the site setup and bore 

specifications.“We needed an increased degree of accuracy 

given the shaft depths and the line and grade of the crossings, 

so we felt the most confident with the SBU-M,” said 

Steve Williams, managing director of B&W Tunnelling. 

The motorized SBU is a manned-entry, hard rock boring 

machine used for longer bores (exceeding 100 m) and for lineand 

grade-critical crossings.The machine is used in conjunction 

with a standard auger boring machine and is welded to 

the lead casing in the same fashion as SBU-As.While both SBU- 

As and SBU-Ms are used with ABMs, the SBU-M utilizes a small 

invert auger for spoils removal rather than a full-face auger. 

The cutterhead is supported by a heavy-duty bearing 

housing assembly, which is driven by either a hydraulic 

motor or a water-cooled, variable speed electric motor.The 

motor provides torque to the drive train and contains a 

torque limiter to reduce cutterhead jams in fractured or broken 

ground conditions. Power cables in 30-m lengths run 

from the machine connection box to a surface-mounted 

electrical disconnect cabinet. 

Available in diameters from 1.2 to 2 m, the SBU-M can be 

steered from an operator’s console inside the machine’s 

rear shield. Articulation cylinders and manually adjustable 



INTERNATIONAL 

hydraulic shoes allow for continuous control of line and 

grade, while a laser target system provides instantaneous 

measurement of boring accuracy. 

SBU Technology & Microtunneling 

Many of the crossings on the pipeline are using microtunneling 

machines (MTBMs) — 11 crossings utilized MTBMs for 

excavation during Phase II of the project, mostly in soft soil 

to mixed ground conditions with expected water ingress. 

MTBMs are superior in jobs below the water table or in soft 

ground; however, they can be highly inefficient in hard rock 

conditions.The machines use tungsten carbide drag bits on 

the cutting head,which tend to break off in rock above 75 to 

100 MPa UCS. The broken bits require expensive replacements, 

therefore slowing progress and increasing man-hours. 

In dry or near dry conditions, when an auger is used in 

conjunction with the MTBM for spoils removal, the microtunneling 

method is still more expensive than an SBU 

machine with ABM.An MTBM using an auger in this fashion 

requires that all rock chipped from the face be further 

crushed for removal, resulting in slower excavation rates. 

SBU systems, in contrast, use interchangeable single disc 

cutters to size the rock chips directly at the face. 

While MTBMs are superior in some conditions, they are 

much more expensive for hard rock excavation than either 

an SBU-A/ABM combination or an SBU-M/ABM setup. 

Purchasing a typical MTBM will often cost five to 10 times 

more than using an SBU-A, and two to three times as much 

as purchasing an SBU-M of the same size. 

Advantages of SBU Technology 

Williams based his decision to use Robbins SBUs on past 

jobsite experience. B&W originally purchased two Robbins 

SBU-As in 2002 for a similar natural gas pipeline through siltstone.This 

previous project involved six hard rock crossings 

along a 70-km pipeline extending from St. Fergus to 

Aberdeen in Scotland, United Kingdom. 

B&W Tunnelling sees its use of SBUs as a competitive 

advantage in the United Kingdom, where the product is not 

well known compared to the United States. “These 

machines can definitely compete with microtunneling 

machines given that they can use concrete pipe and sacrificial 

casings. SBUs also do not require slurry — microtunneling 

machines are dependent on slurry, which can often be 

messy and inefficient,” explained Williams. 

Excavating the Crossings 

As of summer 2007, SBU excavation has gone extremely 

well.Average rates of SBU-M excavation are 1.5 to 2.0 m per 

hour and none of the machines have required rebuilding 

between crossings. 

B&W began excavating the crossings using five Robbins 

machines — three 1.2-m diameter SBU-As and two 1.2-m diameter 

SBU-Ms.The machines utilize 6.5-,9.5- or 11.5-in.diameter 

disc cutters (depending on the rock hardness) to bore 

through geology between 70 and 200 MPa UCS. Many of the 

crossings are in ground consisting of hard rock interbedded 

with clay and gravel, necessitating careful cutterhead design. 



One of the U.K.’s largest pipeline projects is getting a boost from some 

high-powered tunneling machines. 

Each of the crossings is different, and the launch pits for 

each have various set ups, depending on the type of crossing 

(such as a river or road), as well as whether line and 

grade were critical. These variations resulted in both the 

SBU-A and the SBU-M being utilized on the project. SBU-As 

are being used on crossings of shorter length and that are 

not line and grade critical, while SBU-Ms are boring on line 

and grade critical crossings, which contractually have a 50mm 

tolerance. The SBU-M crossings require that 10.5-m 

diameter shafts be constructed, which range from 10 to 30 

m deep and are lined with concrete-bolted segmental rings. 

Launch pits (24-m long x 3-m wide) are being used on all of 

the SBU-A crossings. 

At the onset of the bore,the machines are welded to a 1.2m 

O.D. steel sacrificial pipe casing, which is removed after 

completion of the crossing.The sacrificial pipe will save time 

during the assembly of the final 1.2-m O.D.steel pipe used for 

the pipeline. The gas line will need extensive welding and 

weld testing of each pipe length,which can be performed at 

the bottom of each launch shaft.The large 10.5-m diameter of 

the shafts then enables welding of the 6-m lengths of steel 

pipe to take place. A semi-automatic welding bug is used, 

while a winch in the opposite shaft draws the newly-welded 

pipe lengths through the tunnel until the crossing is complete.The 

entire pipeline is due for completion by 2009. 

Desiree Willis is a technical writer for The Robbins Co., 

which is headquartered in Kent, Wash. 




INTERNATIONAL 

UPDATE 

No-Dig Mediterranean 2007 

– Rome, Sept. 10-12 

By the time you read this,ROMA07 (as it was called by its short 

title) will be over. For the ISTT and the Italian Society, it was an 

innovation to try to break the mold for trenchless events in 

Europe. For much of the European Union, trenchless technology 

is becoming increasingly well established so that the major 

trenchless equipment suppliers have agents or distribution facilities 

and user training is invariably part of the sales package. For 

products too, there is often a good selection of all the necessary 

materials with expert advice available on its use.So much so that 

many European clients and users of trenchless techniques feel 

that most of what they need is available 

close to home and they feel that 

they do not need to travel to deal with 

their business demands. This became 

evident with the No-Digs in Hamburg 

and Rotterdam where there were plenty 

of visitors through the doors of the 

exhibition on a daily basis but not that 

many conference delegates.Also, some 

European counties with active affiliated 

societies have well attended national 

events that have good international 

representation and this is a further reason 

why the attendance at International No-Digs, held in Europe 

and co-hosted by the ISTT, have been falling. 

The ROMA07 organizers set as a target of getting more 

potential trenchless users, many of whom may well have never 

considered trenchless technologies before, through the doors. 

This target was strongly supported by the ISTT to meet its aim 

of “promoting the advantages and benefits of using trenchless 

technologies worldwide.”The first decision by the organizers 

was to reduce prices on the basis that this would attract more 

people who might otherwise feel that the benefits of attending 

were too marginal. So ROMA07 was organized in a conference 

hotel just outside the center of Rome, with prices back to the 

levels last seen in the 1990s. At the same time, the hotel was 

still close enough to Rome’s famous cultural center for international 

delegates to be able to do some sightseeing. For example, 

the Chairman’s Dinner on the Sunday evening before the 

event started — at which all the national society chairmen are 

given a big “thank you”by the ISTT for all their voluntary work 

during the year — was held at the Hotel Bernini,which enabled 

the guests afterward to walk down Via Veneto,made famous by 

the film “La Dolce Vita.” 

The second decision was to gain the support of a number of 

the large national civic groups in Italy to promote the event 

and get their members to attend.This approach was enthusiastically 

taken up by four large groups in Italy of mayors, civic 

leaders and municipal engineers whose members were able to 

enjoy a special low registration price and entry to the exhibition.With 

Italy,like many of the countries of the Mediterranean 

region facing increasing stress on their water distribution networks, 

this certainly attracted many new clients for trenchless 

services in the future. 

The third, and most attractive decision for the ISTT, was that 

the Italian Society contacted one of the many organizations dedicated 

to protecting and improving the water quality of the 

Mediterranean Sea.In news published in Trenchless Technology 

International prior to ROMA07 have been reports of the growing 

environmental concerns over the pollution pouring into the 

Mediterranean Sea everyday and the increasing water shortages 

caused by population movements toward the coastal plains due 

to global warming and increasing “desertification” in North 

Africa. So the formal contact with EMWIS, the “Euro- 

Mediterranean System on know-how in the Water Sector,”which 

attracted 12 senior decision-makers from Turkey, Egypt,Algeria, 

Tunisia, Morocco, Lebanon and Jordan, sponsored by the Italian 

Institute of Commerce, to Rome, was a significant breakthrough.The 

EMWIS group was given a special presentation on 

trenchless technologies and the ISTT agreed to see if some 

arrangement could be made to give it access to the information 

and skills that ISTT members from around the world can provide.The 

ISTT strategic plan for the next five years specifically 

identifies developing countries for attention because they so 

badly need help and support so that this was an important first 

contact in the region that should develop in the future. 

The event itself was well supported, with 65 exhibitors 

occupying 2,500 sq m of indoor space and, for heavy machinery, 

1,500 sq m of outdoor space; 200 paying delegates for the 

three-day conference were joined by 70 additional exhibitor 

badge holders.The total number of day visitors,which was considerable, 

is still to be counted. 

The Gala Dinner and No-Dig Awards Ceremony was held at 

Restaurant Baba, a converted ancient farmhouse where the 

menu comprises of locally grown, in season produce. The 

Product Award went to SewerSeal JF for a newly developed rubberized, 

acrylate-based sewer sealing gel developed by a consortium 

of Wessex Water, Sdi-Unistride and De Neef of the 

United Kingdom, which remains flexible and does not shrink if 

it dries out.The Project Award went to Brochier Ltd., Prague, for 

the cement mortar relining of 22 km of DN 1,600 water feeder 

pipe to the City of Ostrava,Czech Republic.At its peak,the project 

used 25 tonnes of cement grout each day and also provided 

alternative safe drinking water supplies to the population for 

the duration of the project. 

The Student Award went to the Czech Republic’s Lucie 

Nenadalova, who undertook a survey that showed that most 

trenchless technology companies did not provide in their promotional 

literature the information that their potential customers 

need.As the judges remarked,it was something that they 

often suspected and now this was confirmed in the case of 

Lucie’s survey.The Academic Award was presented to Dr.Hedeki 

Shimida of the Department of Earth Resources Engineering, 

Kyushu University, Japan, for his work on the use of slurries, on 

earth stability and thrust forces in pipe jacking and for his enthusiasm 

and support for students undertaking masters and doctorate 

studies. In their concluding remarks, the judges felt that the 

selection of a sewer sealing gel and cement mortar spraying for 

two of the awards,both on the basis of their outstanding quality, 

showed that well established (so frequently described as “old”) 

technologies still have an important role to play in the trenchless 

armory for dealing with everyday problems. All the winning 

entries will be reviewed in future editions of TTI and will also be 

posted on the ISTT Web site at www.istt.com. 

Finally, a special award was made to the French Society for 

Trenchless Technology (FSTT) for an extremely innovative 

scheme that it has introduced in France. Most civic leaders in 

France are elected so they therefore need to present to the electorate 

their beliefs and principles for the way in which they will 

make decisions in running their communities. The FSTT has 

produced a “Charter for a Trenchless Town,” which it invites 

civic leaders to sign in a ceremony with good media coverage. 


The charter pledges that the signatories “in providing a service 

to the citizens,will respect the environment and their quality of 

life.”There are six articles in the pledge that relate to the benefits 

of using trenchless technologies where they are appropriate. 

Details of the scheme are available from the ISTT or FSTT. 

The ISTT International Board of Directors 

When the ISTT reorganized in 1991 from being a single organization 

based in London to an international umbrella organization 

with affiliated member societies from around the world, an 

International Board of Directors was established. Each affiliated 

society is entitled to send two representatives to board meetings, 

and each society has one vote on decisions that are decided 

by a simple majority of those present.Voting is public with 

the exception of elections for officers of the society,who instead 

require a mandate of more than half those present to be elected. 

Voting for officers is hidden with just the result announced and 

not the number of votes that each candidate has received. 

The style of board meetings has changed considerably over the 

years.Whereas in the early days, the directors were involved in 

consolidating the aims and financial status of the society and managing 

the international demand for trenchless events as national 

societies became established, a role that could be described as 

“inward looking.”Today,the board is involved in deciding how the 

ISTT should operate in the future to both expand and raise its 

profile on the international stage.This is a change that could be 

described as “outward looking.” But it is still only a change in 

terms of emphasis since the original aims of the ISTT remain 

identical to those first adopted in 1986. 

The first step in making a change came with the approval of 

2K10 — the strategic plan for the ISTT for the next five years 

that was adopted at the board meeting held in Brisbane, 

Australia, in 2006.This plan established seven strategic objectives, 

which collectively place a greater emphasis on activities 

that will promote trenchless technology to decision-makers 

and the general public. 

It was not the first time that the board had anticipated the 

need for change. In 2005 in Rotterdam, the Netherlands, the 

Board had noted the increasing reluctance of people to travel 

long distances to attend events and it agreed to try alternative 

ways of running the No-Dig. ROMA07, for example, was staged 

as a regional event and Moscow 2008 will be staged to run in 

parallel with a large environmental exhibition. The results of 

both events will be used to learn lessons for the future.This year 

in Rome, the board decided to take the work a step further by 

building in more certainty about the future program for trenchless 

events.It approved the preparation of a rolling 10-year plan, 

suggested by the Czech Republic Society, which will be used to 

regularly share out events across the world based on continents, 

regions and countries in that order. 

Also in Rome, the board heard that for the second year running 

the ISTT had spent more than its income on its activities. 

The reason for this was the fall in affiliation fee income and a 

smaller share of the surplus from participation in international 

events.This in turn prompted the board to consider changes in 

the way the ISTT is run centrally.The board felt that certain routine 

administrative tasks need not be undertaken by ISTT staff, 

but could instead be contracted out to specialist organizations, 

which are more cost-effective.The board also felt that the span 

of expertise needed to make the ISTT a “reference point for the 

global trenchless community” could be achieved by having a 

panel of experts and it approved a proposal by the Executive 

Sub-committee to establish a technical panel. The board also 

approved a job specification for a new executive director,which 


will placed more emphasis on communication skills so that he 

or she will need to lead more activities in future to publicize and 

promote both the ISTT and trenchless technology. 

2008 will be a year of change.The ISTT International Board 

is committed to adapting the Society to a business climate 

quite different to that in which the Society started in 1986. 

NO-DIG AWARD 2008 

Entries are invited for the NO-DIG AWARDS for 2008, to be 

presented at International No-Dig 2008 Moscow (June 3-5, 2008). 

Awards will be made for entries in 4 categories for work 

completed during 2007/8 as follows: 

• Academic research project or training aid/course 

Trenchless project completed 

New machine, tool, material, system or technique introduced 

Student* or young professional paper 

(* Members regularly enrolled in college or university, or spending at least half 

their time on academic course work) 

The aim of the ISTT is to promote the science and practice of 

trenchless technology, and the Awards are intended to raise 

the profile and status of the Society and its Award Winners. 

The judges will be asked to consider: 

Does the entry make a contribution to the advancement of trenchless 

technology world-wide? 

Does the entry contribute to protecting the environment and/or to 

reducing social costs? 

Are the above benefits clear from the entry? 

Is the entry innovative, ingenious, elegant or novel? 

Is the entry commercially and economically practicable? 

Will the award make an impact with the media, decision-makers and 

the general public? 

Will the award impress ISTT members? 

Has the entry been well explained and presented? 

The entry can relate to the practical use or development of 

trenchless systems, or to equipment for the installation or 

rehabilitation of underground utility networks. As examples, 

they may be concerned with achievements in terms of: 

improved economy and competitiveness of trenchless installation; 

length of speed of drive for installation, replacement or renovation; 

accuracy or size of installation; 

materials used; 

ground conditions successfully dealt with; 

improved acceptability for clients, operators and/or the environment; 

underground detection, recording and mapping of obstacles, both 

natural and man-made; 

health and safety of employees and the general public; 

matters related to training in the field of trenchless work. 

research into any of the topics which surround working on utilities 

underground. 

Entries are required in English and should be prepared with 

the above criteria in mind to a maximum of 1,000 words 

supported by suitable illustrations in one of the standard 

electronic formats (for example MS Word ® , WordPerfect ® ). 

The illustrations should be in JPG format so that they can be 

circulated quickly to the judges. Further details are available 

from the ISTT. 

CLOSING DATE FOR ENTRIES TO THE ISTT AT 

info@istt.co.uk BY MARCH 7, 2008 


Chairman: Menno Henneveld Executive Secretary: John Castle 

AUSTRIAN ASSOCIATION FOR TRENCHLESS TECHNOLOGY 

Chairman: Robert Selinger; Secretary: Ute BocciolI 

AATT Osterreichische VereinigungFur grabenloses Bauen und 

Instandhalten von Leitungen; Schubertring 14, A-1015 Wien, 

AUSTRIA; Tel: +43 1 5131 588-0; Fax: +43 1 5131 58825; E-mail: 

boccioli@oegl.at; Web site: www.oegl.at 

AUSTRALASIAN SOCIETY FOR TRENCHLESS TECHNOLOGY 

Chairman: Menno Henneveld; Secretary: Jeff Pace 

ASTT 18 Frinton Place, Greenwood, WA 6024, WESTERN 

AUSTRALIA; Tel: +61 (0)8 9420 2826; Fax: +61 (0)8 9420 3171; 

E-mail: jeffpace@astt.com.au; Web site: http://www.astt.com.au 

BRAZIL SOCIETY FOR TRENCHLESS TECHNOLOGY 

Chairman: Sergio A Palazzo; Secretary: Daniel Meloni 

ABRATT A1. Ogla, 422 cj. 97, Barra Funda — CEP 01155-40, Sao 

Paulo - SP - 01156-000, BRAZIL; Tel: +55 11 3822 2084; Fax: +55 11 

3611 8694; E-mail: info@abratt.org.br; Web site: www.abratt.org.br 

CHINA HONG KONG SOCIETY FOR TRENCHLESS TECHNOLOGY 

Chairman: Ian Vickeridge; Exec. Secretary: 

Mr Choi, Hon Ting Derek 

CHKSTT 10/F Hing Lung Commercial Building, 68-74 Bonham 

Strand East, HONG KONG; Fax: +852 8148 7764; E-mail: info@chkstt.org; 

Web site: http://www.chkstt.org 

CHINA TAIPEI SOCIETY FOR TRENCHLESS TECHNOLOGY 

Chairman: (Robert) Sun-Kuei Wang; Secretary: (Bob) W C Chen 

CTSTT 3F, 92, Sec.4, Roosevelt Rd., Taipei, TAIWAN; Tel: +886 2 

8369 5160; Fax: +886 2 8369 5161; E-mail: sunkuei@twd.gov.tw 

CZECH SOCIETY FOR TRENCHLESS TECHNOLOGY 

Chairman: Prof. Milos Karous; Secretary: Dr Jiri Kubalek 

CZSTT Bezova 1658/1, 147 14 Praha 4, CZECH REPUBLIC; 

Tel: +420 244 062 722; Fax: +420 244 062 722; E-mail: czstt@czn.cz; 

Web site: http://www.czstt.cz 

FINNISH SOCIETY FOR TRENCHLESS TECHNOLOGY 

Chairman: Mikko Isakow; Secretary: Jani Vakeva 

FISTT Pl 493, 00101 Helsinki, FINLAND; Tel: +358 400 439004; 

Fax: +358 5 7495010; E-mail: jani.vakeva@kymenvesi.fi 

FRENCH SOCIETY FOR TRENCHLESS TECHNOLOGY 

Chairman: Patrice Dupont; Secretary: Monique Lac 

FSTT 4 rue des Beaumonts, F-94120 Fontenay Sous Bois, FRANCE; 

Tel: +33 1 53 99 90 20; Fax: +33 1 53 99 90 29; E-mail: 

FSTT.PARIS@wanadoo.fr; Web site: http://www.fstt.org 

GERMAN SOCIETY FOR TRENCHLESS TECHNOLOGY 

Chairman: Prof. Dr.-Ing. Jens Hoelterhoff; Secretary: Dr. Klaus Beyer 

GSTT Messedamm 22, D-14055 Berlin, GERMANY; 

Tel: +49 30 3038 2143; Fax: +49 30 3038 2079; E-mail: 

beyer@gstt.de; Web site: http://www.gstt.de 

IBERIAN SOCIETY FOR TRENCHLESS TECHNOLOGY 

Chairman: Alfredo Avello; Secretary: Elena Zuniga Alcon 

IBSTT C/Alenza 1, 28003 Madrid, SPAIN; Tel: +34 913 995 093; Fax: 

+34 913 995 093; E-mail: ibstt@ibstt.org; Web site: www.ibstt.org 

ITALIAN ASSOCIATION FOR TRENCHLESS TECHNOLOGY 

Chairman: Paolo Trombett; Secretary: Feliciano Esposto 

IATT Piazzale degli Eroi, 16, 00163 Rome, ITALY; 

Tel: +39 06 5725 0065; Fax: +39 06 57287636; E-mail: iatt@iatt.it; 

Web site: www.iatt.it 

ISTT was founded in 1986 to advance and promote 

worldwide the advantages of installing, renovating, 

repairing and replacing underground pipelines and 

services with the minimum of excavation. 

There are two types of membership: the International 

list, held by the Headquarters in London or through 

Affiliated Societies in 24 countries and regions of the 

world. Both types of membership will receive publications 

on a regular basis organized by ISTT, together 

with other membership benefits of discounted 

sales for international conferences and publications. 

For membership applications, contact your national 

society (in your own country — see list of affiliates 

or contact: 

ISTT 

15 Belgrave Square 

London SW1X 8PS, UK 

Ph: +44-20-8850-9119 

Fax: +44 20-8850-7447 

E-mail: info@istt.co.uk 

Web site: www.istt.com 

ISTT • A COMPANY LIMITED BY GUARANTEE AND REGISTERED IN LONDON NO. 2053569 ALSO A REGISTERED CHARITY NO. 295274 

JAPAN SOCIETY FOR TRENCHLESS TECHNOLOGY 

Chairman: Mr Taigo Matsui; Secretary: Kyoko Kondo 

JSTT Akasaka Kyowa Bldg, 1-6-14 Akasaka, Minato-Ku, JAPAN; Tel: 

+81 3 3586 5181; Fax: +81 3 3586 5183; E-mail: jstt@ca.mbn.or.jp; 

Web site: www.jstt.jp 

LITHUANIAN SOCIETY FOR TRENCHLESS TECHNOLOGY 

Chairman: Arturas Abromavicius; 

LIATT c/o UAB SWECO BKG, A. Gostauto Str. 11, LT-01108, Vilnius, 

Lithuania; Tel: +37 05 2622621; Fax: +37 05 2617507; E-mail: 

arturas.abromavicius@sweco.lt 

NETHERLANDS SOCIETY FOR TRENCHLESS TECHNOLOGY 

Chairman: Ad de Waal Malefijt; Secretary: Jelle de Boer 

NSTT Postbus 483, 2700 AL Zoetermeer, THE NETHERLANDS; 

Tel: +31 (0) 79 3252265; Fax: +31 (0) 79 3252294; E-mail: 

info@nstt.nl; Web site: http://www.nstt.nl 

NORTH AMERICAN SOCIETY FOR TRENCHLESS TECHNOLOGY 

Chairman: Piero Salvo; Secretary: John Hemphill 

NASTT 1655 North Fort Myer Dr., Ste 700, Arlington, Virginia 22209, 

USA; Tel: +1 703 351 5252; Fax: +1 703 739 6672; E-mail: 

nastt@nastt.org; Web site: http://www.nastt.org 

POLISH FOUNDATION FOR TRENCHLESS TECHNOLOGY 

Chairman: Andrzej Kuliczkowski; Secretary: Marek Banasik 

PFTT 25-001 Kielce 1, SKR. Pocztowa 1453, POLAND; 

Tel: +48 41 3622145; Fax: +48 22 642 13 44; E-MAIL 

akulicz@tu.kielce.pl 

RUSSIAN SOCIETY FOR TRENCHLESS TECHNOLOGY 

Chairman: Stanislav Vladimirovich Khramenkov; Secretary: Elana 

Viktorovna Guesenkova 

RSTT Odinzovskii Arrears, "Marfino", 99 143025, MA, RUSSIA; Tel: 

+7 (495) 290 90 36; 598 96 91; Fax: +7 (495) 290 90 36; E-mail: 

robt@co.ru; Web site: http://www.robt.ru 

SCANDANAVIAN SOCIETY FOR TRENCHLESS TECHNOLOGY 

Chairman: Magnar Sekse; Secretary: Bjorn Widman 

SSTT Agatan 15B, SE-745 35 Enkoping, SWEDEN; 

Tel: +46 171 44 02 60; E-mail: rolf.alm@tfab.se; 

Web site: http://www.sstt-skandinavien.com 

SOUTH AFRICA SOCIETY FOR TRENCHLESS TECHNOLOGY 

Chairman: Craig Burnie; Secretary: Joop van Wamelen 

SASTT PO Box 13048, Clubview, Centurion, 0014, SOUTH AFRICA; 

Tel: +27 12 567 4026; E-mail: director@sastt.org.za; Web site: 

http://www.sastt.org.za 

UKRAINE SOCIETY FOR TRENCHLESS TECHNOLOGY 

President: Volodymyr Markivsky; Secretary: Olga Martynyuk 

USTT Solomenskaja Str.3, Kiev 03110, UKRAINE; 

Tel/Fax: +380 044 276 42 80; E-mail: ustt@ukr.net 

UNITED KINGDOM SOCIETY FOR TRENCHLESS TECHNOLOGY 

Chairman: Russell Fairhurst; Secretary: Val Chamberlain 

UKSTT 38 Holly Walk, Leamington Spa, Warwickshire, CV32 4LY; Tel: 

+44 (0)1926 330 935; Fax: +44 (0)1926 330 935; E-mail: 

admin@ukstt.org.uk; Web site: http://www.ukstt.org.uk 


TECHNICAL FORUM 

Choosing a 

Manhole Frame-Chimney Seal 

Nearly all SSES and I/I studies conducted 

have drawn the same conclusion 

— that manhole frame-chimney 

inflow is one of the most significant 

sources of leakage in the entire sewer 

system. Large quantities of clear water 

can be prevented from ever entering 

the sewer system by sealing the framechimney 

joint area of sanitary manholes. 

Many different methods have 

been tried in an attempt to seal this 

area of the manhole and new methods 

and technologies are being developed 

and proposed all the time. 

The frame-chimney joint area in 

manholes is one that is difficult to seal 

long term due to any number of the 

following factors: 

Thermal expansion and contraction 

of the pavement, freeze-thaw cycles 

and ground movement cause the 

frame to move vertically, as well as laterally 

with respect to the top of the 

manhole structure. 

Traffic loading subjects the frame to 

continuous impact and jarring. 

The cast-iron frame and masonry of 

the manhole structure have different 

thermal coefficients and surface textures, 

making it difficult to provide a 

watertight bond between the two 

surfaces. 

Based on these factors,NASSCO states 

in its “Specifications Guidelines/ 

Wastewater Collection Systems 

Maintenance and Rehabilitation, SG-12” 

that: 

CALENDAR 

2007 

23-26 DSS, Cleveland, Ohio, AWWA, (303) 347-6240; E-mail: 

dtrujillo@awwa.org; Web: www.awwa.org 

27-28 Pipe and Pipeline Renewal seminar, New York Metro Area (Secaucus, 

N.J.), ASCE, (800) 548-2723; E-mail: conted@asce.org; Web: 

www.asce.org 

OCTOBER 

1-5 IPLOCA Convention, Sydney, Australia, Web: www.iploca.com 

13-17 WEFTEC 2007 Annual Conference & Expo, San Diego, WEF (800) 

666-0206 

16-19 ICUEE 2007, Louisville, Ky, (800) 867-6060; Fax: (414) 272-2672; 

E-mail: info@icuee.com; Web: www.icuee.com 

17-19 DCA-Europe Annual Congress, Dresden, Germany, DCA-Europe, 

Web: www.dca-europe.de 

NOVEMBER 

7-8 Dealing with Challenges of Horizontal Directional Drilling (HDD), GEO- 

DELFT, Delft, The Netherlands, E-mail: sales@delftgeoacademy.com. 

DECEMBER 

4-7 CONEXPO Asia 2007, Guangzhou, China, (414) 298-4167 or +86-10- 

8519-1566 in China, E-mail: info@conexpoasia.com 


“Manhole frame sealing includes 

the sealing of the frame joint area 

and the chimney above the cone 

of the manhole with either a manufactured 

or applied internal or 

external flexible seal. The seal shall be 

designed to prevent leakage of water 

into the manhole through these areas 

throughout a minimum 25-year design 

life.The installed seal shall remain flexible, 

to allow for repeated vertical movements 

of the frame due to frost lift, 

ground movement or other causes of 

not less than 2 in. and/or repeated horizontal 

movement of the frame due to 

thermal movement of pavement or 

other causes of not less than a half inch 

throughout the design life.” 

All frame-chimney seals, whether 

they are manufactured or applied, fall 

into four basic categories. 

Rigid Seal — This type of seal includes 

bolting the frame to the precast cone, 

extending cementitious liner material 

from the manhole wall up onto the 

frame, setting the frame in a bed or mortar, 

encasing the frame and entire chimney 

area in a poured concrete collar or 

the use of any other type of non-flexible 

material or liner. 

Semi Rigid or Semi Flexible — This type 

of seal typically involves the use of some 

type of sealing material, such as butyl 

rubber mastic, between the frame, grade 

adjusting rings and manhole cone joints. 

Flexible Membrane — This type of seal is 

created by applying a flexible coating or 

Other Notable Events 

By Lee Haessig 

membrane to either 

the inside or outside 

surfaces of the frame 

extending down onto 

the manhole chimney 

and/or cone. Materials may include epoxies, 

urethanes, rubber or heat shrinkable 

sleeves. 

Manufactured Flexible Rubber — This 

type of seal is pre-fabricated from a 

high-quality rubber material and is 

installed either on the inside or outside 

of the frame-chimney joint area by 

expanding or tightening corrosion 

resistant bands with a mechanical tightening 

device. 

Therefore, community and/or engineers 

have many things to consider 

when deciding which frame-chimney 

seal to use; they must decide whether 

the seal can meet expected design life 

and performance requirements, as well 

as ease of installation and future maintenance 

and replacement needs. Different 

methods will have different end results 

and a successful manhole rehabilitation 

project will depend on how much 

emphasis is put into factors such as 

design life, material performance and 

proven success in actual field conditions.The 

bottom line is that the cheapest 

method at the time of bid quite often 

ends up costing more in the long run. 

Lee Haessig is northeast regional manager 

with Cretex Specialty Products, which is 

headquartered in Waukesha, Wis. 

2007 

18-19 New OrleansTrenchless Road Show, New Orleans, Benjamin Media Inc., 

Ph: (330) 467-7588; Fax: (330) 468-2289; E-mail: info@benjaminmedia.com; 

Web: www.rehabroadshow.com 

NOVEMBER 

13-14 Miami Trenchless Road Show, Miami, Benjamin Media Inc., Ph: (330) 

467-7588; Fax: (330) 468-2289; E-mail: info@benjaminmedia.com; 

Web: www.rehabroadshow.com 

27-28 Asset Management: Bridging the Gap Between Theory & Practice Atlanta, 

Benjamin Media Inc., Ph: (330) 467-7588; Fax: (330) 468-2289; E-mail: 

info@benjaminmedia.com; Web: www.uimonline.com 

2008 

JANUARY 

22-24 Digital City EXPO, Phoenix, Benjamin Media Inc., Ph: (330) 467-7588, 

Fax: (330) 468-2289, E-mail: info@benjaminmedia.com, Web: www.digitalcityexpo.com. 


BUSINESS CARDS 

PRODUCING THE PIPE 

THAT CONTRACTORS LOVE 

26 O.D.–168 O.D. 

.250 –1.50 W 

LENGTHS UP TO 80 FT. 

STRAIGHT SEAM–D.S.A.W. 

CALL JACK BARD 

800-821-3475 

FAX 815-964-0045 





FAST SERVICE! 

SAME DAY 

NEXT DAY 

1-WEEK 

AS REQD 

1025 SCHOOL ST. 

ROCKFORD, IL 

61105-0898 












TERRA TRENCHLESS UNDERGROUND PRODUCTS 

TERRA Directional Drills 

TERRA MINI-JET 

TERRA-JET Series "D" 

Missile TERRA-HAMMER 

Rammer TERRA-HAMMER 

TERRA Cable Bursters 

TERRA Rod Bursters 


ISO 9001 certified 

Fagan's Lehigh Equipment, Inc. 

Mays Landing, NJ 08330 

Phone:800-458-5238 

Fax:609-476-3298 

Cell: 610-428-1883 

faganslehigh@comcast.net 

www.terra-trenchless.com 

Providing Innovative Products for the Prevention of 

inflow and infiltration at the adjustment ring and joint 

sections of manholes & catch basins. 

Sealing Systems, Inc. 

9350 County Rd. 19 • Loretto, MN 55357 

(763)478-2057 (800)478-2054 

www.ssisealingsystems.com 




BUSINESS CARDS 





CLASSIFIEDS 

Mississippi based trenchless technology company 

looking for cured in place/ tv evaluation superintendent 

with minimum 8 years experience. 

Willing to relocate. Must be willing to travel Ms, 

Al, La, Tenn, Fla, Ark. Competitive salary, bonus, 

provided insurance, company vehicle and 401K. 

Microtunnel Operator 

Mid-Atlantic & northeast tunneling, utility and transportation contractor has immediate full time position 

for microtunnel and TBM operator. Experienced candidate must possess extensive experience 

and understanding of the microtunneling process. Experience in other types of tunneling and shaft 

construction is a plus. Candidate should possess leadership qualities, desire to work as part of a team 

and be willing to travel the east coast. Salary, transportation and full benefits package commensurate 

with experience and knowledge. Relocation costs reimbursable. 

E-mail resume or C.V. to jobs@superna.com. 

Mississippi based trenchless technology company 

looking for estimator/project manager. Minimum 

8 years experience preferably some field 

management. Must be willing to relocate. 

Competitive salary, bonus, provided insurance, 

company vehicle, and 401K. 



ADVERTISER’S INDEX 

Advertisers.............................Page ......RS # 

Amerik Supplies ............................................46 ..............41 

AOC Resins .....................................................6 ................3 

AP/M Permaform...........................................24 ..............18 

Applied Felts..................................................14 ..............11 

Arntzen Corporation ......................................60 ..............77 

Avanti International........................................38 ..............33 

Bigs Easy Lift.................................................28 ..............21 

Camp Dresser & McKee, Inc.........................33 ..............27 

Cippcon Inc. ..................................................61 ..............91 

Colorado School of Mines............................65 ..............48 

Composites One............................................23 ................9 

CPT................................................................67 ..............49 

CUES .............................................................61 ..............88 

CWR Holdings, LLC......................................22 ..............14 

DRILLCO Inc..................................................62 ..............93 

Duke's Root Control ........................................5 ................2 

E&M Specialty Co. Inc..................................54 ..............52 

Fagan's Lehigh ..............................................61 ..............89 

Godwin Pumps of America Inc. ....................31 ..............25 

Hammerhead .................................................60 ..............80 

Harris & Associates.......................................35 ..............30 

The HDD Company Inc. ................................44 ..............55 

Hermes Technologies Ltd..............................50 ..............45 

Holly Pipe Corporation..................................60 ..............81 

Horizontal Technology Inc.............................50 ..............44 

Icon Equipment Distributors, Inc. .................54 ..............22 

Inliner Technologies ......................................41 ..............36 

Inliner Technologies ......................................61 ..............83 

Innotrans 2008 ..............................................55 ..............47 

Inserta Fittings.................................................7 ................4 

Interplastic Corporation.................................30 ..............24 

Interstate Truck Rental ...................................61 ..............86 

ISCO Industries ........................................18,19 ..............13 

ISCO Industries .............................................62 ..............94 

Laney Directional Drilling..............................36 ..............31 

Lee Supply Company, Inc. ............................43 ..............39 

Lining Innovations.........................................10 ................7 

Logiball, Inc...................................................24 ..............18 

MaxLiner........................................................13 ..............10 

Mears Group Inc............................................27 ..............20 

Michael Byrne Mfg........................................42 ..............37 

Michels Corp.................................................12 ..............15 

Moffatt Enterprises ........................................36 ..............32 

Moscow No-Dig Call for Papers...................51 ..............46 

Mr. Manhole ..................................................12 ..............16 

1. OUTSIDE 

CONTRACTING FIRMS 

❑ Utility Contractor 

❑ Distribution Contractor 

❑ Road Boring/ 

Directional Drilling 

Contractor 

❑ Tunneling Contractor 

❑ Pipeline Contractor 

❑ Cable Contractor 

❑ General Contractor 

❑ Other; Specify: 

__________________________ 

2. ENGINEERING FIRMS 

❑ Construction 

❑ Geotechnical 

❑ Environmental 

❑ Pipeline 


__________________________ 

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3. GOVERNMENT/PUBLIC 

WORKS 

❑ Water and Sewer 

❑ Gas and Electric 


__________________________ 

4. UTILITY COMPANIES 

❑ Water and Sewer 

❑ Electric 

❑ Gas 

❑ Cable/Telephone 

❑ Other Utilities; Specify 

__________________________ 

5. INDUSTRIAL FACILITY 

❑ In-House Contracting 

❑ In-House Construction 

❑ In-House Engineering 

❑ Other; Specify 

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Advertisers.............................Page ......RS # 

National EnviroTech Group LLC....................39 ..............34 

No-Dig Sewers Without a Trench..................60 ..............75 

OnePass HDD................................................60 ..............76 

Rain for Rent..................................................32 ..............26 

Raven Lining Systems...................................25 ..............19 

Reliner/Duran ................................................34 ..............29 

Ridge Tool Co..................................................9 ................8 

Ridge Tool Co................................................44 ..............56 

The Robbins Co.............................................45 ..............40 

Robbins HDD ................................................61 ..............84 

Roose Manufacturing ....................................61 ..............85 

RWF Bron ........................................................8 ................5 

Sauereisen.....................................................47 ..............42 

SealGuard ........................................................2 ................1 

Sealing Systems............................................40 ..............35 

Sealing Systems............................................61 ..............90 

Sekisui SPR Americas...................................11 ................6 

Sekisui SPR Americas...................................62 ..............95 

Slabach Enterprises.......................................60 ..............79 

Sprayroq Inc. .................................................15 ..............12 

Surface to Surface .........................................49 ..............43 

Terre Hill .......................................................62 ..............92 

TRS Miami.....................................................53 ..............59 

TRS New Orleans ..........................................63 ..............54 

TT Technologies ............................................68 ..............50 

Tulsa Rig Iron ................................................42 ..............38 

UIM Conference ............................................37 ..............57 

Ultraliner........................................................29 ..............23 

Underground Tools Inc..................................34 ..............28 

United Rentals ...............................................60 ..............82 

Vac-Tron, division of American Mfg .............60 ..............78 

Pipe Inspection Guide 

Aries...........................................................P-21 ............153 

Benjamin Media Inc. Online Bookstore.....P-17 ............162 

CUES ...........................................................P-5 ............151 

Envirosight...................................................P-2 ............150 

Inuktun Services........................................P-11 ............154 

Pearpoint Inc..............................................P-13 ............155 

PipeLogix...................................................P-25 ............158 

RapidView IBAK USA ................................P-36 ............157 

Rausch Electronics USA LLC ......................P-9 ............152 

RS Technical Services Inc. ........................P-12 ............156 

Stein Bookstore .........................................P-27 ............161 

Trenchless Technology Webinars..............P-14 ............160 

How would you describe your primary trenchless activity? (Check One:) 

❑ Rehabilitation ❑ New Installation ❑ Both 

What is your primary business at this location. (CHECK ONE) 

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__________________________ 

6. MFG/SUPPLIER 

❑ Manufacturer 

❑ Rehabilitation Systems 

❑ Pipe Manufacturer 


__________________________ 

7. OTHERS IN THE TRENCH- 

LESS INDUSTRY 

❑ Consultant, 

❑ Library 

❑ Student/Professor 


___________________________ 

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Fax to 330.657.2855 

Reader Service & Subscription Card 

PLEASE PRINT CLEARLY 

CHECK your job TITLE ❑ Owner/Partner ❑ President ❑ Vice President ❑ C.E.O. ❑ C.O.O./C.F.O. 

❑ Manager/Coordinator/Administrator ❑ Supervisor/Foreman/Inspector ❑ Superintendent 

❑ Engineer/Estimator/Consultant ❑ Director/Commissioner ❑ Safety ❑ Operator/Field 

Personnel/Technician ❑ Other; Specify: _______________________________________________________ 

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OWNERSHIP, MANAGEMENT & 

CIRCULATION STATEMENT 

I want to renew/subscribe to TRENCHLESS TECHNOLOGY FREE* ❑ YES ❑ NO 

Signature: _________________________________Date: ___________________ 

Please allow 4 - 6 weeks for processing 

*This offer excludes all foreign subscriptions, except Canada. 

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STATEMENT OF OWNERSHIP, MANAGEMENT, AND CIRCULATION 

as required by 39 U.S.C. 3685 

Title of Publication: Trenchless Technology 

Publication Number: 1064-4156 

Filing Date: 09/01/2007 

Issue Frequency: Monthly with Directory in May 

Number of Issues Published Annually: 13 

Annual Subscription Price: $0.00 

Complete Mailing Address of Known Office of Publication: 

1770 Main St, PO Box 190 Peninsula OH-44264 USA 

Complete Mailing Address of Headquarters: Same As Above 

Full Names and Complete Mailing Address of Publisher: 

Bernard P. Krzys, Publisher- 1770 Main St, PO Box 190 Peninsula OH-44264 

Full Names and Complete Mailing Address of Editor: 

James W. Rush, Editor- 1770 Main St, PO Box 190 Peninsula OH-44264 

Full Names and Complete Mailing Address of Managing Editor: 

Sharon M. Bueno, Managing Editor, 1770 Main St, PO Box 190 Peninsula OH-44264 

Corporation Name and Stockholders: 100 % stock owned by Bernard P. Krzys 

Known Bondholders, Mortgages, and Other Security Holders: None 

Tax Status: Has not Changed During Preceding 12 Months 

Publication Title: Trenchless Technology 

Issue Date for Circulation Data Below: August 2007 

Extent and Nature of Circulation — 

Total Number Copies (Net Press Run) . . . . . . . . . . . . . . . . . . . . . . . . . . . 38,617 

Paid and/or Requested Circulation — 

Paid/Requested Outside-County Mail Subscriptions . . . . . . . . . . . . . 35,567 

Paid In-County Subscriptions (Include advertiser’s proof) . . . . . . . . . . . . 20 

Sales Through Dealers and Carriers, Street Vendors, 

Counter Sales, and Other Non-USPS Paid Distribution . . . . . . . . . . . . . . . . 0 

Other Classes Mailed Through the USPS . . . . . . . . . . . . . . . . . . . . . . . . . . 0 

Total Paid and/or Requested Circulation . . . . . . . . . . . . . . . . . . . . . . . . 35,587 

Free Distribution by Mail — 

Outside-County as Stated on Form 3541 . . . . . . . . . . . . . . . . . . . . . . . 1,563 

In-County as Stated on Form 3541 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 

Other Classes Mailed Through the USPS . . . . . . . . . . . . . . . . . . . . . . . . . . 0 

Free Distribution Outside the Mail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1,317 

Total Free Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2,880 

Total Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38,467 

Copies Not Distributed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38,617 

Percent Paid and/or Requested Circulation: 92.51% 

Fax to 330.657.2855 

Would you like renewal & industry updates by fax ❑ YES ❑ NO 

64 TRENCHLESS TECHNOLOGY September 2007 www.trenchlessonline.com 

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TT0907 Expires 1/2008 

Name____________________________________________________________ 

Job Title: ___________________________ Company: ________________________ 

Address: __________________________________________________________ 

City: ____________________________ State,Province: ______Zip,Postal Code: ________ 

Country: __________________________ Email: ___________________________ 

Phone: __________________________ Fax: ______________________________ 

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E-BIZ 

AWWA Member Publication Online 

Opflow is a member benefit of the American Water Works 

Association (AWWA). Members receive the publication monthly in 

their mailboxes and have access to archives and the full text of current 

articles in Opflow Online. 

The articles in Opflow are written by and for hands-on professionals 

in the water industry. Its easy-to-read, “how-to” style makes 

Opflow the industry’s most usable monthly publication. Articles 

cover treatment and distribution operations, maintenance, safety, 

management, emerging technology, and solutions to common utility 

problems. 

AWWA Opflow’s editorial purpose is to present new and established 

technologies and ideas that readers can apply to drinking 

water treatment and distribution, alert readers to possible related 

problems and solutions, interpret regulatory and technical information 

in a clear format, and foster and promote innovative ideas that 

help readers provide safe water to all. 

This is accomplished through technically detailed case studies and 

how-to articles, departments and columns that target specific needs, 

and dynamic illustrative graphics. Opflow is primarily written by 

people who read it: the members of the AWWA, the authoritative 

resource on safe water. The components of Opflow are bold and 

accessible,presented in a manner that allows information to be readily 

absorbed by persons in all segments of the water community and 

at all levels of responsibility. Opflow’s goal is to be the leading practice 

periodical in the water community and the most useful AWWA 

periodical regarding day-to-day applications. 



www.awwa.org/Publications/OpflowCurrent.cfm 

ONLINE TODAY 

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POINT OF VIEW 

The Importance of 

Subsurface Investigations in 

New Trenchless Installations 

It is said that when it comes to 

underground construction, the 

owner owns the ground and the 

contractor owns the means and 

methods. This ultimately means that 

the owner (in conjunction with the 

designer) is responsible for providing 

sufficient information on the subsurface 

conditions so that the contractor 

can have a reasonable chance of constructing 

the new underground facility 

as desired by the owner at a fair 

price. 

Without a sufficient understanding 

of the subsurface conditions, the contractor 

is at risk of failing to complete 

the construction based on the construction 

methods that the contractor 

planned and priced its work on, 

and the owner risks additional costs 

and delays due to change orders 

resulting from differing conditions. In 

other words, the owner is responsible 

for providing biddable contract 

documents with sufficient subsurface 

information so that the contractor 

can anticipate the ground conditions 

and select the proper procedures, 

equipment and tooling. 

In the case of microtunneling, the 

contractor will need to have an 

understanding of the subsurface conditions 

so that the configuration and 

tooling of the microtunnel head 

most appropriate for the ground conditions 

can be selected, production 

rates can be anticipated and handling 

and disposal of excavated material 

can be determined.In the case of horizontal 

directional drilling, the contractor 

needs to estimate production 

rates, in addition to determining 

potential drill mud lost rates, the 

potential for inadvertent surface 

returns (frac-out), and again, handling 

and disposal methods for the spoil.As 

can be seen, the subsurface information 

provided by the owner is key for 

the contractor to plan his means and 

methods and pricing. 

Knowing the underground subsurface 

conditions, also allows the contractor 

to better anticipate ground 

lost or subsidence and/or ground 

heave based on the anticipated 

behavior of the ground based on the 

planned construction method. 

Nothing ruins an owner’s and contractor’s 

day more than having unanticipated 

earth movement that causes 

surface settlement or heave, having 

other utilities move and possibly 

break, or perhaps worst, damaging a 

nearby structure or building. 

Not only should the owner 

provide the contractor with 

sufficient subsurface information, 

the owner should also consider 

using a geotechnical baseline 

report (GBR). 

In addition to pricing the work, 

both the owner and the contractor 

are at risk due to unknown subsurface 

conditions such as large boulders, 

buried former building foundations 

and contaminated soils and 

groundwater. The key word here is 

“unknown.” They are obviously 

unknown until discovered. However, 

to limit claims due to changed conditions, 

it is better for all if the owner 

can discover such conditions and 

owners reduce the amount of 

unknowns during the planning and 

engineering phase rather than to 

have the contractor discover 

unknowns during construction. 

Discovering the unknowns during 

the planning and engineering phase 

allows the owner to mitigate the 

issues associated with the unknowns 

such as handling and disposal of contaminated 

soils, changing the vertical 

and/or horizontal alignment of the 

proposed pipeline to avoid obstructions 

and/or locating jacking and 

receiving shafts at locations of the 

previously unknown obstruction to 

avoid installing one there later as the 

infamously known “911” hole. 

Without a sufficient understanding 

of the subsurface conditions, the con- 

By 

Dennis J. Doherty, P.E. 

tractor often needs 

to make a number of assumptions on 

the subsurface conditions and evaluate 

the risk associated with the 

assumed underground subsurface 

conditions. These assumptions 

include conditions that will affect 

production rates, methods of controlling 

groundwater and earth movement, 

construction methods and 

potential risk for failure of the construction 

method. The risk of failure 

is the greatest unknown and could be 

costly and potentially economically 

devastating to the contractor. 

To account for the potential risk, a 

contractor may increase his bid price 

to cover contingency in case the 

unknown subsurface conditions do 

in fact affect his production rates and 

thus labor and rental cost. In other 

words, he is passing the cost of the 

risk on to the owner. If the contractor’s 

assumptions are correct, the 

money not used for the contingency 

becomes a windfall for the contractor 

and the owner does not get a fair 

price for the installed work. 

Therefore, it is in the interest of the 

owner to provide as much information 

on the subsurface conditions as 

possible to minimize the assumptions 

and guessing that the contractor is 

forced to use when pricing the project.This 

generally results in lower bid 

prices by the contractors. 

Not only should the owner provide 

the contractor with sufficient subsurface 

information, the owner should 

also consider using a geotechnical 

baseline report (GBR). The GBR is a 

risk sharing tool, allowing both the 

owner and contractor to share in the 

risk. It helps allocate the risk of 

underground construction to those 

best able to handle the risk.As noted 

above, the owner owns the ground 

and the contractor owns the means 

and methods. Sharing the risk is in 

the best interest of all parties. 

Dennis J. Doherty, P.E., is senior project 

manager-trenchless technologies 

at Jacobs Engineering Group Inc.

Author: Professor, Dr. Dietrich Stein - TrenchlessOnline

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