SWM-ES020607ESTIMATE 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 Under Coppell Road At Grapevine Creek Trib.
Detention Improvements on DFW Property
Improved Culvert on Minyards Property
Bethel Road - City of Coppell
Roadway and Drainage improvements
Bethel Road
a /71M
GA200 \00890\hydrau1ics \cost estimateAs
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ITEM
UNITS)LIANT111
UNIT
ITEM
PRICE
TOTAL
Proposed Storm Drain for Bethel Road
6' Recessed Curb Inlet
EA
9
$ 2,760.00
$ 24,840.00
8' Recessed Curb Inlet
EA
6
$ 3,680.00
$ 22,080.00
10' Recessed Curb Inlet
EA
12
$ 4,600.00
$ 55,200.00
12' Recessed Curb Inlet
EA
2
$ 5,520.00
$ 11,040.00
14' Recessed Curb Inlet
EA
1
$ 6,440.00
$ 6,440.00
18" RCP Class III
LF
1068
$ 30.00
$ 32,040.00
21 " RCP Class II I
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
SUBTOTAL $ 414,090.00
Detention Pond 1 on DFW Property
Excavation for Pond
CY
27235
$ 10.00
$ 272,350.00
Seeding
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 $ 296,350.00
Detention Pond 2 on DFW Property
Excavation for Pond
CY
74765
$ 10.00
$ 747,650.00
'$
Seeding
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 $ 776,650.00
GA200 \00890\hydrau1ics \cost estimateAs
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Proposed Culvert Improvement Under Min yards Pro a
Including Freeport
Crossin
3 -10' x 5' Box Culvert (2040' each Box )
LF
6120
$
385.00
$
2,356,200.00
10' x 5' Box Culvert for Reconstruction of Existing 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
lGrading 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
Proposed Open Channel From Freeport 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
Proposed Culvert Improvement at Bethel Road and Grapevine
Creek
4-10'x5' Box Culvert (30' each Box)
LF
120
$
385.00
$
46,200.00
Headwall / Wingwall
EA
2
$
7,500.00
$
15,000.00
Remove Existing Box Culvert
CY
90
$
18.00
$
1,620.00
Asphalt Paving (4 ")
TON
30
$
500.00
$
15,000.00
Cement Treated Base 9 ")
SY
140
$
1.55
$
217.00
Remove Existing Asphalt Pavement
SY
140
$
1.00
$
140.00
Grading for New Culvert
LS
1
$
3,000.00
$
3,000.00
Seeding
LS
1
$
300.00
$
300.00
SUBTOTAL
$
81,477.00
Prop osed Open Channel From Bethel to Co pelt 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
1 $
500.00
SUBTOTAL
$
352,930.00
Proposed Culvert Improvement at Co pelt Road and Grapevine Creek
4-10'x 7' Box Culvert (50' each Box )
LF
200
$
500.00
$
100,000.00
Headwall / Win wall
EA
2
1§
8,500.00
$
17,000.00
Remove Existing Box Culvert
CY
150
$
18.00
$
2,700.00
Asphalt Paving (4 ")
TON
49
$
500.00
$
24,500.00
Cement Treated Base (9 ")
SY
225
$
1.55
$
348.75
Remove Existing Asphalt Pavement
SY
225
$
1.00 $
225.00
Grading for New Culvert
LS
1
$
3,000.00 $
3,000.00
Seeding
LS
1
$
300.00 $
300.00
SUBTOTAL
$
148,073.75
GA200 \00890\hydraulics \cost estimateAs Page 2 of 3
Proposed 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
Grading LS 1 $ 500.00 $ 500.00
Seeding LS 1 $ 250.00 $ 250.00
SUBTOTAL $ 108,050.00
Subtotal $ 5,146,700.00
15% Contingency $ 772,005.00
TOTAL $ 5,918,705.00
Since ENGINEER has no control over the cost of labor, materials, equipment or services furnished by others, or over the Contractor(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
judgment 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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