LESS Handout - Lou Buena Ventura

2010 FDOT/FTBA /
Construction Conference
LESS Session
February February 24, 2010

►Guardrail Guardrail
►Cable C CCable bl Rail R il
►Attenuators
Attenuators
Topics

Panelists
►Stefanie Stefanie Maxwell Maxwell FDOT
►Jim Jim Mills FDOT
►Lou L LLou Buenaventura B t LESS Chairman
Ch i

Guardrail Issues
Issues
► Inclusion Inclusion of of Bridge Bridge Anchor Anchor Pay Pay Items
Items
► Height of of guardrail – Tolerances over undulating
surfaces, drainage structures, etc.
► Pedestrian rail needs to be shown in the
Summary Summary of of Guardrail chart
► Pay for for Guardrail is through the end anchors
anchors

Guardrail Issues Issues - 2
► Pedestrian rail cannot be be terminated terminated on any any of
of
the anchor posts.
► Designers must provide, in the plans, the
Scheme # of the GR attachment to a Bridge g –
See Index 402, sheet 24 of 24
► Concrete Encased Posts – depth of embedment
when installed next to a curb is 2’ minimum -
Index 400 page 22 of 26

Guardrail Issues Issues - 3
► Reflectors – When extending extending existing existing runs runs of
of
guardrail, Contractors are to install new type
reflectors not the old style
► Confusion between Pay y Item 460 460-71 71-1 1 – Metal
Traffic Railing Thrie Beam Retrofit and Pay Item
536 536-1-6 6 Guardrail Bridge Thrie Beam

Cable Cable Rail Rail Issues
Issues
► Developmental Specification 540
► Fi Five different diff t approved d CCable bl Rail R il systems t
available
► These are not interchangeable on the
g
same job.

Cable Rail Rail Issues Issues - 2
► Design es g o of Co Concrete c ete Anchors c o s
Must be performed by an Engineer for the
Contractor/Supplier
/ l
Design can can be be based based on the soil parameters parameters included in
in
the Developmental Specification or site specific soil
borings
Design should be submitted with enough time allowed
for FDOT review and approval prior to installation, not
j just 10 10 days d in i advance
d

Cable Rail Rail Issues Issues - 3
► Height eg to of cabe cable rail a
Measured at the post
Height tolerances
► Cable Rail Rail placement placement should should be be on on slopes slopes 6:1 6:1 or
or
flatter
► Allowable Deflection of 8’ is to be considered
during g design g placement p
of cable rail

Attenuators
► FDOT requests that Industry improve
the quality of repairs performed to
installed attenuators that have been
damaged

Attenuators – 2
► Manufacturer’s Reps p are here today y to
provide information on how to best
accomplish quality repairs to attenuators
Adam Young – Site-Safe Products
MMathew th Schindler S hi dl – Cl Cloverleaf l f CCorporation ti
Rick Rowe – Gulf Industries
SCI Attenuators

►QUESTIONS QUESTIONS ???
LESS SESSION