HomeMy WebLinkAboutWPO201600051 Bond Estimates 2017-03-31Project Name: Albemarle County Service Authority Crozet Phase 3 Water Main Replacement Project
WPO file number: WP0201600051
Erosion and Sediment Control Bond Estimate
Item Item No. Unit Unit Cost Cost
Number installed
stabl tion (PS, TS)cr-
$5,000.00
$1,250.00
silt fence (SF)
fi
$5.00
$5,250.00
safety fence (SAF)
ft
$5.00
$0.00
diversion (DD, FD, RWD)
ft
$13.00
$0.00
temporary slope dem(TSD)
pipe length
0 f
pipe diameter
-in
$0.00
$0.00
eanhwatr for trap/basin
het ht of dam at Ice
9
0 ft
out al high side
9
fl
height of fill at face
0 ft
out at face
fl
length of dam
0 ft
length of cut
fl
top width
0 ft
width of out
fl
(area above transition)
(area below transition)
0 sf
(total width of dam)
0 k
(total width of cut)
0 ft
(height below transition)
0 ft
(depth below transitior 0 ft
(area below transition)
0 sf
(area above transition)
0 sf
(total fill volume)
0.0 cy
(total fill volume)
0.0 cy
length of spillway
R
(TOAL CV estimate)
0 cy
$13.00
$0.00
width of spillway
R
(spillway stone tons)
0tons
$50.00
$0.00
structures for basin
riser height
R
rise r diameter
in
(riser unit price)
$0.00
$0.00
barrel length
R
base plate or fdn
$200.00
$0
barrel diameter
(barrel unit price)
$000
$0.00
barrel collars
$200.00
$0
baffle length
h
$50.00
$0
sill fence inlet protection (11P)
$100.00
$2,100.00
stone inlet protection (IP)
$200.00
$0.00
cutlet protection (OP)
length
ft
width
8 fi
$540.00
$540.00
channel (SCC, matted)
length
fl
width
0 fi
$0.00
check dam
depth in channel
fi
channel width
0 ft
$0.00
$0.00
construction entrance (CE)
$2.50000$5,00000
wash rack
$2,000.00
$0.00
paved construction entrance
$3,500.00
$0.00
rip -rap, placed
depthfi
length
r
width
0.0
0 tons
$60.00
$0.00
survey and layout (price per 0.1 mi.)
acres
r 0.5
traps and basins
'
$250.00
mobilization
$2,500.00
stream crossing (computed independently)
$0.00
cost sum
$16,890.00
contingency
$1,689.00
Total
$18,580
3/31/2017
Approximate Earthwork computations for sed
Assumes all cut and fill slopes are 2:1 for simplicty
Cut at High Side
h2
Height of Fill at Face
h1 %,
w
Width of Cut
Fill area above transition = h1(2h1) + hl (w)
Fill area below transition;
total width of fill (dam) = 2h1 + w + 2h2
height below transition = h2 -h1,
area = (width*height)/2 - height x height
Length of Cut
Top
I—w
transitic
h1
Cut at Fa
liment traps and basins
Width
►n point \ Height of Dam at Toe
h2
ice
Volume= Length of Fill x Fill Area
Cut Areas and Volume is the same as fill
but using the cut dimensions
Fill for Dam
(imately)