Earthen Embankment Dam Preliminary Opinion of

APPENDIX E
EARTHEN EMBANKMENT DAM
PRELIMINARY OPINION OF COST
FOR ALTERNATIVE ASSESSMENT
Project 09170036.00 Schnabel Engineering, LLC
May 14, 2010 Copyright 2010

Ragged Mountain Dam
Earthen Embankment Dam Alternative
Alternatives Assessment Opinion of Cost
(Prices in 2010 Dollars)
Schnabel Engineering 2010
Dam Construction
Item Number Units Quantity Unit Price Extended Price
1 Mobilization & Demobilization
a. General LS 1 $1,566,169 $1,566,169
b. Bonds and Insurance LS 1 $671,215 $671,215
2 Care and Diversion of Water
a. Erosion and Sediment Control LS 1 $800,000 $800,000
b. Foundation Dewatering/Water Control LS 1 $350,000 $350,000
3 Clearing and Grubbing
a. Dam and Emergency Spillway AC 11.00 $5,000 $55,000
b. Borrow Areas AC 39.40 $4,500 $177,300
c. Access Road AC 2.40 $5,500 $13,200
4 Reservoir Clearing AC 102 $5,650 $577,939
5 Demolition and Removal of Structures
aa. Miscellaneous Structures LS 1 $10 $10,000 000 $10 $10,000 000
b. Modifications to Lower Dam LS 1 $350,000 $350,000
c. Removal of Upper Dam LS 1 $400,000 $400,000
d. Removal of Old Piping LS 1 $50,000 $50,000
6 Excavation
a. Common Excavation CY 66,560 $5.00 $332,800
b. Rock Excavation CY 33,000 $25.00 $825,000
c. Rock Trimming CY 3,000 $75.00 $225,000
d. Rock Shaping SY 500 $50.00 $25,000
7 Rock Cleaning SY 5,410 $40.00 $216,400
8 Foundation Drilling and Grouting SF 137,110 $20 $2,742,200
9 Fill
a. Common Earth Fill (Shell Fill) CY 534,020 $5.00 $2,670,100
b. Select Earth Fill (Core Fill) CY 126,000 $7.00 $882,000
b. Fine Drain Fill CY 15,380 $55.00 $845,900
c. Coarse Drain Fill CY 6,740 $50.00 $337,000
d. Embankment Test Fill LS 1 $50,000.00 $50,000
10 Slope Protection
a. Type I Rip Rap (Plunge Pool) CY 1,070 $80.00 $85,600
b. Type II Rip Rap (Wave Action Protection) CY 7,160 $75.00 $ $537,000 $
c. Rip Rap Bedding Material CY 2,530 $45.00 $113,850
d. Geotextile SY 1,200 $10.00 $12,000
11 Conventional Concrete (Includes Waterstop)
a. Structural Concrete (Riser, Bridge Pier, Pipe Encasement, Retaining Walls) CY 2,700 $750.00 $2,025,000
b. Dental Concrete CY 2,500 $250.00 $625,000
12 Steel Reinforcing Bars LB 459,000 $0.80 $367,200
13 Gates
a. 24-inch Sluice Gate (unseating head) EA 1 $80,000 $80,000
b. 24-inch Sluice Gate (seating head) EA 2 $37,500 $75,000
c. 6-inch Sluice Gate EA 1 $8,500 $8,500
14 36-Inch Steel Pipe (Conduit through Dam) LF 750 $522 $391,500
15 Drainage Pipe and Materials
a. Solid 8-inch PVC Pipe LF 1,180 $30 $35,400
b. Perforated 8-inch PVC Pipe LF 1,020 $35 $35,700
c. Solid 6-inch PVC Pipe LF 280 $25 $7,000
d. Perforated 6-inch PVC Pipe LF 1,840 $30 $55,200
16 Chain-Linked Chain Linked Fence and Gates LS 1 $5,000 $5,000
17 Instrumentation LS 1 $165,000 $165,000
18 Riser Bridge LS 1 $135,000 $135,000
19 Storm Drainage System
a. Manhole EA 5 $2,000 $10,000
b. 18-inch HDPE Pipe LF 840 $75 $63,000
20 Metal Work LS 1 $100,000 $100,000
21 Landscaping and Site Restoration
a. Topsoil CY 9,710 $6.00 $58,260
b. Permanent Turf Establishment (with Matting) (20% of Area) AC 49 $3,000 $146,160
G:\2009 Jobs\09170036.00 Ragged Mountain\Task 7- Preliminary Design (30%)\Quantities\Construction Cost Estimates Ragged Mountain-Alternatives Assessment Final Report 5/14/20101:04 PM

22 4800-Feet 18-inch Pipe, Open Cut, 6-foot Depth, Ductile Iron Pipe
a. Furnish and Install Pipe LF 4,480 $270.00 $1,209,600
b. Clearing and Grubbing LF 4,480 $22.00 $98,560
c. Site Restoration LF 4,480 $13.00 $58,240
d. Rock Removal (25% Rock, 4.5-foot Wide Trench) CY 1,750 $200.00 $350,000
23
1260-Feet of 36-inch Pipe, Open Cut, 10-foot Depth, Class 53 Ductile Iron Pipe
(Outside of Dam)
a. Furnish and Install Pipe LF 1,260 $689.00 $868,140
b. Clearing and Grubbing LF 1,260 $22.00 $27,720
c. Site Restoration LF 1,260 $16.00 $20,160
d. Rock Removal (50% Rock, 6-foot Wide Trench) CY 1,402 $200.00 $280,400
24 Valves, Rubber Seated, Electric Motor-Operated
a. 36-inch Valve EA 2 $71,000 $142,000
b. 6-Inch Valve EA 1 $10,000 $10,000
c. Install Valves EA 3 $12,000 $36,000
25 Ball Valves, Electrical and Controls
a. Electrical EA 1 $100,000 $100,000
b. Controls EA 1 $100,000 $100,000
26 Staging Area (Holiday Trails)
a. Land Rental (16 ( Months) ) LS 1 $100,000 $ , $100,000 $ ,
b. Restoration (Site and Stream) LS 1 $150,000 $150,000
27 Roadways
a. Reservoir Drive Upgrade and Maintenance LS 1 $250,000 $250,000
b. Traffic Control LS 1 $150,000 $150,000
c. Roadway Surfacing SY 7,200 $12 $86,400
d. Access Road Improvements LS 1 $200,000 $200,000
28 Unlisted Items LS 1 $1,065,421 $1,065,421
Construction Costs Subtotal: $24,611,235
Contingency (%): 20%
Subtotal Estimated Construction Costs Plus Contingency: $29,533,482
Engineering Services
29 Engineering Services
a. Engineering Design LS 1 $890,298 $890,298
b. Construction Observation and Testing LS 1 $2,800,000 $2,800,000
Engineering Services Subtotal: $3,690,298
Contingency (%): 10%
Subtotal Estimated Engineering Services Plus Contingency: $4,059,328
Construction and Engineering Costs Total: $28,301,533
Estimated Total Construction and Engineering Costs Plus Contingency: $33,592,810
G:\2009 Jobs\09170036.00 Ragged Mountain\Task 7- Preliminary Design (30%)\Quantities\Construction Cost Estimates Ragged Mountain-Alternatives Assessment Final Report 5/14/20101:04 PM