ST9905-EM020607ESTIMATE OF PROBABLE CONSTRUCTION COSTS
'STORM DRAIN & DETENTION -ALTERNATIVE 1
New Storm Drain System for Bethel Road,
New Box Culvert Under Freeport Parkway At Grapevine Creek Trib.
New Box Culvert Under Bethel Road At Grapevine Creek Trib.
New Box Culvert Undar CoppeB Road qt Grapevine Creek Trib.
Detention Improvements on DFW Property
Improved Culvert on Minyards Property
Bethel Road -City of Coppell
Roadway and Drainage improvements
Bethel Road
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IT€M TdfT UANTI UNIT ITEM
PRICE TOTAL
Pro osed Storm Drain for Bethel Road z dm ~
6' Recessed Curb Inlet EA 9 $ 2-760:90 $ 24,840.00
8' Recessed Curb Inlet EA 6 $ 0 $ 22,080.00
10' Recessed Curb Inlet EA 12 $ 0 $ 55,200.00
12' Recessed Curb Inlet EA 2 $ 00 $ 11,040.00
14' Recessed Curb Inlet EA 1 $ 6;448V0 $ 6,440.00
18" RCP Class III LF 1068 $ 30.00 $ 32,040.00
21" RCP Class III LF 1946 $ 40.00 $ 77,840.00
24" RCP Class III LF 252 $ 45.00 $ 11,340.00
27" RCP Class III LF 841 $ 50.00 $ 42,050.00
30" RCP Class III LF 1306 $ 55.00 $ 71,830.00
33" RCP Class III LF 376 $ 60.00 $ 22,560.00
Concrete Collar EA 12 $ 768.00 $ 9,216.00
Fiield Connections EA 27 $ 576.00 $ 15,552.00
Trench Safety Over 5' LF 6031 $ 2.00 $ 12,062.00
S UBTOTAL $ 444;99E}90
Detention Pond 1 on DFW Pro erty 3~'~
Excavation for Pond CY 27235 $ 10.00 $ 272,350.00
Seedin LS 1 $ 1,500.00 $ 1,500.00
Outlet Structure LS 1 $ 20,000.00 $ 20,000.00
Grading LS 1 $ 2,500.00 $ 2,500.00
SUBTOTAL $ 296;350-04-
Detention Pond 2 on DFW Property
Excavation for Pond CY 74765 $ 10.00 $ 747,650.00
Seedin LS 1 $ 1,500.00 $ 1,500.00
Outlet Structure LS 1 $ 25,000.00 $ 25,000.00
Grading LS 1 $ 2,500.00 $ 2,500.00
SUBTOTAL $ ~76;65f}06-
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Pro osed Culvert Improvement Under Min ards Pro a Includin Freeport Crossin )
3-10' x 5' Dox Culvert (2040' each Box) LF 6120 $ 385.00 $ 2,356,200.00
10' x 5' Box Culvert for Reconstruction of Existin Culvert LF 140 $ 385.00 $ 53,900.00
Headwall /Win wall EA 1 $ 4,500.00 $ 4,500.00
Concrete Pavement (6") SY 535 $ 35.00 $ 18,725.00
Cement Treated Base (9") SY 535 $ 1.55 $ 829.25
Remove Concrete Pavement SY 535 $ 15.00 $ 8,025.00
6" Concrete Curb and Gutter LF 120 $ 20.00 $ 2,400.00
Excavation CY 3210 $ 10.00 $ 32,100.00
Gradin for New Culvert LS 1 $ 3,000.00 $ 3,000.00
Seeding LS 1 $ 1,000.00 $ 1,000.00
SUBTOTAL $ 2,480,679.25
Pro osed O en Channel From Free ort to Bethel RD
6" Concrete Lined Channel CY 819 $ 500.00 $ 409,500.00
Excavation CY 7740 $ 10.00 $ 77,400.00
Grading LS 1 $ 1,000.00 $ 1,000.00
Seeding LS 1 $ 500.00 $ 500.00
SUBTOTAL $ 488,400.00
Pro osed Culvert Im rovement at Bethel Road and Gra evine Creek
4-10' x 5' Box Culvert (30' each Box) LF 120 $ 385.00 $ 46,200.00
Headwall /Win wall EA 2 $ 7,500.00 $ 15,000.00
Remove Existin Box Culvert CY 90 $ 18.00 $ 1,620.00
As halt Pavin 4" TON 30 $ 500.00 $ 15,000.00
Cement Treated Base (9") SY 140 $ 1.55 $ 217.00
Remove Existin As halt Pavement SY 140 $ 1.00 $ 140.00
Gradin for New Culvert LS 1 $ 3,000.00 $ 3,000.00
Seeding LS 1 $ 300.00 $ 300.00
SUBTOTAL $ 81,477.00
Pro osed Open Channel From Bethel to Cop ell RD
6" Concrete Lined Channel CY 601 $ 500.00 $ 300,500.00
Excavation CY 5093 $ 10.00 $ 50,930.00
Grading LS 1 $ 1,000.00 $ 1,000.00
Seeding LS 1 $ 500.00 $ 500.00
SUBTOTAL $ 352,930.00
Pro osed Culvert Im rovement at Co ell Road and Gra evine Creek
4-10' x 7' Box Culvert (50' each Box) LF 200 $ 500.00 $ 100,000.00
Headwall /Win wall EA 2 $ 8,500.00 $ 17,000.00
Remove Existin Box Culvert CY 150 $ 18.00 $ 2,700.00
As halt Pavin (4") TON 49 $ 500.00 $ 24,500.00
Cement Treated Base (9" SY 225 $ 1.55 $ 348.75
Remove Existin As halt Pavement SY 225 $ 1.00 $ 225.00
Gradin for New Culvert LS 1 $ 3,000.00 $ 3,000.00
Seeding LS 1 $ 300.00 $ 300.00
SUBTOTAL $
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Pr aced Open Channel 200 FT Downstream From Co ell RD
6" Concrete Lined Channel CY 182 $ 500.00 $ 91,000.00
Excavation CY 1630 $ 10.00 $ 16,300.00
Gradin LS 1 $ 500.00 $ 500.00
Seeding LS 1 $ 250.00 $ 250.00
SUBTOTAL $ -19H;950°OB-
~8~-),F7~.2`; Subtotal $ 5,146,700.00
~572,1a31a 44 15%Contingency $ 772,005.00
TOTAL $ 5,918,705.00
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Since ENGINEER has no control over the cost of labor, materials, equipment or services furnished by othere, or over the Contredor(s)
methods of determining prices, or over competitive bidding or market conditions, ENGINEER'S opinions of probable Total project Costs and
Construction Cost provided for herein are made on the basis of ENGINEER'S experience and qualifications and represent ENGINEER'S best
~udgment as an experienced and qualified professional engineer, familiar with the construction industry; but ENGINEER cannot and does not
guarantee that proposals, bids or actual Total Project or Construction Costs will not vary from opinions of probable cost prepared by
ENGINEER. If prior to the Bidding or Negotiating Phase OWNER wishes greater assurance to the Construction Cost he shall employ an
independent cost estimator.
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