NCC213518_NOT Closeout Documents (5)_20220902

Frito Roxboro
Wet Detention Pond #1
As -Built Summary
Wet Detention Pond As -Built Summary
Forebay
Elevation
Area As -Built (sf)
648.0
-
649.0
-
650.0
-
651.0
133.60
652.0
245.39
653.0
372.38
654.0
537.16
654.5
-
655.0
1156.55
Main Pool
Elevation
Area As -Built (sf)
648.0
156.77
649.0
269.44
650.0
400.28
651.0
563.22
652.0
870.27
653.0
1259.74
654.0
1728.30
654.5
-
655.0
2885.61
loor
Normal Pool
loor
Normal Pool
Date: 12/29/2021
By: bsb
Required
As -Built
Main Pool Volume (cf)
3,896
6,359
Main Pool Area (sf)
1,715
2,886
Riser Structure As -Built Comparison
Item
Elevation Design
Elevation As -Built
Rim
657.5
657.53
Wier
657.0
657.01
18" RCP Inv. Out of Riser
654.28
654.04
2" Orifice
655.0
655.00
Bottom 6" Orifice
648.0
647.53
18" RCP Inv. Out at FES
653.5
653.53
Wet Pond
As -Built Comparison
Item
Design
As -Built
Floor Elevation Forebay
651.0
651.0
Floor Elevation Main Pool
648.0
648.0
Normal Pool Elevation
655.0
655.0
Veg. Shelf Width
6.0
> 6.0
Top of Dam Elevation
660.0
660.0
Top of Dam Width
10.0
> 10.0
Emerg. Spillway Elevation
658.0
658.0
Emerg. Spillway Width
30.0
35.0
Forebay Berm Width
9.0
9.0
at Normal Pool Elev.