HomeMy WebLinkAboutWPO201400097 Bond Estimates 2015-08-14 (3)Project Name: University of Virginia Physicians Group, Northridge Medical Center
WPO file number: WP0201400097
Erosion and Sediment Control Bond Estimate
Item Item No. Unit Unit Cost Cost
Number installed
stablization (PS, TS)
0.74 acres
$5,000.00
$3,700.00
silt fence (SF)
260 ft
$5.00
$1,300.00
stone inlet protection (IP)
4
$200.00
$800.00
construction entrance (CE)
1
$2,000.00
$2,000.00
wash rack
1
$2,000.00
$2,000.00
survey and layout (price per 0.1 mi.) acres
0.74 traps and basins 0
$370.00
mobilization
$500.00
cost sum
$14,170.00
proj mgmt
$2,125.50
contingency
$1,629.55
Total
$17,930
8/14/2015
Approximate Earthwork computations for sed
Assumes all cut and fill slopes are 2:1 for simplicty
.y
Height of Fill at Face I
h1
Cut at High Side
h2
transitic
w h1
Width of Cut Cut at Fa
Fill area above transition = h1(2h1) + h1(w)
Fill area below transition;
total width of fill (dam) = 2h1 + w + 2h2
height below transition = h2 -h1,
area = (width *height)12 - height x height
Length of Cut
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)