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SONOMA, PHASE 3
MBESI PROJ #: 10530015
Engineer's Estimate of Constr_uction Costs .
November 23, 2009
Description Unit Quantity Unit Price
Site Preparation
I Ac. I · · n1 -. 2:000_00
I I I
Site Preparation Subtotal
Paving Construction
Earthwork for Street Construction(+/-5,280 CY Excavation/Embankment) L.S. l 31,000.00 item includes toosoil striooing and reolacement in ROW and easements)
6' Lime Stabilized Subgrade (6% by weight) S.Y. 11,395 4.00
6" Crushed Limestone Base S.Y. 7,495 9.00
8" Crushed Limestone Base S.Y. l,009 12.00
2" HMAC Surface Course (including prime coat) S.Y. 8,504 9.50
Concrete Curb and Gutter (all types) L.F. 5,353 I0.50
6' Reinforced Concrete Pavement S.Y. 344 40.00
4' Rei nforccd Concrete Sidewalk S.F. 10,566 4.00
6' PVC Conduit LF -100 12.00
Colored Sidewalk Ramps EACH 8 750.00
Paving Subtotal
ramaee ;ystem D . s c onstruction
18' RCP Pipe, (ASTM C-76, CL ill) (Structural Backfill) L.F. 82 53.00
18' HDPE Pioe, (ADS, N-12 or aooroved equal w/water-tight joints) L.F. 116 38.00
24" RCP Pipe, (ASTM C-76, CL ill)(Structural Backfill) L.F. 292 60.00
24" HDPE Pipe, (ADS, N-12 or approved equal w/water-tight joints) L.F. 25 40.00
30" HDPE Pipe. (ADS, N-12 or aooroved equal w/water-tightjoints) L.F. 41 50.00
48" RCP j>ipc, (ASTM C-76, CL ill) (Structural Backfill) L.F. 213 175.00
18" HDPE 4: I Sloped Headwall EACH I 1,000.00
30" RCP 4: l Slooed Headwall EACH 1 1,500.0C
48" RCP 4: 1 Sloped Headwall EACH 6 1,800.00
Construct Top of Existing Inlet EACH 4 750.00
Standard 10' Recessed Inlet EACH 2 3,250.00
Standard 5' Recessed Inlet EACH 5 2,750.00
Standard JW1ction Box EACH 1 2,500.00
Rock Rip-Rap Channel Lining, on Filter Fabric S.Y. 11 7 75.00
Drainage Svstem Subtotal
w s ater ;ystem c onstruct1on
24" ANSIJA WW A C151/A21.5, CL 200 DIP Water Line (Non-Str. Backfill) L.F. 1,577 85.00
8" PVC, C909 Cl 200, Water Line, Non-Sir. Backfill L.F. 744 14.00
8" PVC, C909 Cl 200, Water Line, Str. Backfill L.F. 880 35.00
6" PVC, C909 Cl 200, Water Line, Non-Str. BackfiU L.F. 478 18.00
6" PVC, C909 Cl 200, Water Line, Str. Backfill L.F. 68 25.00
4" PVC, C909 Cl 200, Water Linc, Non-Str. Backfill L.F. 641 14.00
36" Steel Casing (includes spacers and structural backfill) L.F. 60 250.00
Fire Hydrant Assembly EACH 3 3,150.00
24"x45 deg Bend EACH 4 2,025.00
24"x11.25 deg Bend EACH 2 2,025.00
24' Butterfly Valve EACH I 6,000.0C
6" Blow-off Valve EACH l 3,000.00
8"x8' M.1. Tee EACH 2 450.00
8"x6" M.J. Tee EACH 2 450.00
8" M.J. Gate Valve EACH 6 900.00
8"x24" M.J. Anchor Coupling EACH 9 175.00
8"x45 deg. Bend EACH 18 400.00
8"x4" Reducer EACH 1 350.00
Ki"x4" Reducer EACH 1 350.00
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Total
$'!4,606
Sl4,600
S3 l,OOO
$45,580
S67,455
$12,108
$80,788
$56,207
$13,760
$42,264
Sl,200
$6,000
$356362
$4,346
$4,408
$17,520
$1,000
$2,050
S37,275
$1,000
$1,500
Sl0,800
$3,000
$6,500
$13,750
$2,500
$8,775
$114,424
$134,045
Sl0,416
$30,800
$8,604
Sl,700
$8,974
$15,000
$9,450
$8,100
$4,050
$6,000
$3,000
$900
$900
$5,400
$1,575
$7,200
$350
$350
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SONOMA, PHASE 3
MBESI PROJ #: 10530015
Engineer's Estimate of Construction Costs
November 23, 2009
Description Unit Quantity Unit Price
kl" M.J. Gate Valve EACH 2 800.00
6"x45 \I.el! ~n9 . . -·--EACH 4 · 350.00
k5"x24" M.J. Anchor Couolinl! EACH 2 250.00
14 'x45 deg Bend EACH 5 150.00
4"xl 1.25 deg Bend EACH 2 150.00
2' Blow Off Valve Assemblv EACH 3 950.00
Connect to Ex. Water Line EACH 4 500.00
Water Service, 1.5" tvne K Copper, short side(~ 20') EACH 16 800.00
Water Service, l' type K Cooner, short side (< 20') EACH 6 550.00
IWatcr Service, 1.5" tvoi: K Cooner, long side(> 20') EACH 17 1,600.00
Water Service l" type K Copper, long side(> 20') EACH 4 1,400.00
Water Svstem Subtotal
s s ewer ;vstem c onstruction
6" PVC, D-3034 SDR 26 L.F. 965 7.00
Str. Backfill (8'-10' Depth) L.F. 391 33.00
INon-Str. Backfill (5'-8' Depth) L.F. 500 14.25
INon-Str. Backfill (8'-10' Deoth) L.F. 74 16.25
Standard 4' Diam. Manhole, 0-6 ft. deeo EACH 5 2,000.0Q
Standard 5' Diam. Manhole, 0--0 ft. deep EACH I 2,500.00
Connect to Ex. Sewer Line EACH 2 750.00
Extra Depth (> 6'), 4' Diam. Manhole V.F. JO 275.00
iExlTa Deoth (> 6'), 5' Diam. Manhole V.F. 7 300.00
Short Side 4 • Sewer Service (::: 20') EACH 5 400.00
!Long Side 4' Sewer S.crvice (>20') EACH 10 1,200.00
Extend Existing Sewer Service EACH II 750.00
Trench Safetv (sewer) L.F. 965 1.00
Sewer Svstem Subtotal
Erosion Control Construction
Erosion Control Plan & Sedimentation Control (per Item 106) (includes L.S. 1 5,000.00 lmonitoring, record keeping, grass seeding, and cleanup)
Silt Fence <Tvne 1) L.F. 150 3.00
Silt Fence (Tvne 2) L.F. l,141 5.00
Silt Fence (Type 3) L.F. 3,333 3.00
Inlet Protection L.F. 10 250.00
Headwall Protection L.F. I 250.00
Entrance/Exit L.F. 1 1,800.00
Erosion Control Subtotal
Total
$1,600
. ·~· . $1;400
$500
$750
$300
$2,850
$2,000
$12,800
$3,300
$27,200
$5,600
$315,114
$6,755
$12,903
$7,125
Sl,203
SI0,000
$2,500
Sl,500
$2,750
$2,100
$2,000
$12,000
$8,250
$965
$70,051
$5,000
$450
$5,705
$9,999
$2,500
S250
$1 800
$25,704
Total Construction Cost\ $896.254
The above construction estimate is based on the engineer's preliminary opinion of probable construction costs. This estimate constitutes our
best judgment at this time. Please note that tbe engineer does not have any control over contractor or supplier workloads and the degree IP
which inflation may affect project costs between now and the bid date. During construction, additional features may become apparent as the
work progresses, which will result in an increase in cost
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