HomeMy WebLinkAboutWPO201300032 Plan - As-built 2022-08-05PLANTING SCHEDULE TABLE
VICINITY MAP
WEIR
Impervious
Core*
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CLEAN —OUT
W/WATERTIGHT
8' CAP
STOP OF BERM
B10FILTER
EARTHFILL
L 4" NON —PERFORATED
PVC PIPE @ 1% MIN,
SLOPE
*Impervious core shown for
informational purposes only. Final
design to be provided by
geotechnical engineer.
R51 SEE
TOP 431.5Y BERM WEIF D� ETAIL
ELEV= �
01
N
O
PROVIDE PIPES
ACROSS ENTIRE WIDTH
AT 20 FT O.C.
Bio—Filter Weir Sizing Calculations:
DA—BF #1 Drainage Area = 1.145 Acres
c=0.57; Tc=7 Min; 1(10)=6.5; 1(100)=8.4
Q(10)=4.24 cfs; 0(100)=5.48 cfs
Weir Calculation (Weir Length = 4'):
10 Year: 4.24 cfs=3.33(4')(H^J) —> H= 0.47'
100 Year: 5.48 cfs=3.33(4')(H" J) —> H= 0.55'
3'S
LOAM OR GRANULAR
4" PERFORATED PVC
PIPE O 1% MIN, SLOPE
Note: For BF-1, Extend 4' wide by 1' deep
rip —rap
channel to stream. Refer to sheet SP8
of the site plan for final grading,,
Y,
4 50% SAND/30% TOPSOIL/
Bio—Filter Sizing Calculations:
DA—BF #1 Impervious Area: 22,500 sf.
Bio—Filter Area Required: 22,500 X 5% = 1,125
sf.
Area Provided = B&5 a� 1,248 sf•
2 BIO-FILTER SCHEMATIC
SW15 NOT TO SCALE
20% LEAF MULCH
(SAND: 0.02"-0.04",
ASTM C33 FINE)
FILTER FABRIC
UNDERDRAIN GRAVEL (AASHTO M43,
1/2"-1") WRAPPED IN FILTER FABRIC
BLANDSCAPING�P
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(Acer
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rubrum)
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WFAY• -•- - - - -•-
LT SHRUBS &
LATE BONESET
EUPATORIUM SEROTINUM
JOHNSON GRASS
(SORGHUM HALEPENSE)
CHINESE BUSHCLOVER
(LESPEDEZA CUNEATA)
COMMON MUGWORT
(ARTEMISIA VULGARIS)
YELLOW CROWNBEARD
(VERBESINA OCCIDENTALIS)
FIELD THISTLE
(CIRSIUM DISCOLOR)
BEEFSTEAK PLANT
(PERILLA FRUTESCENS)
WINTER JASMINE
(JASMINUM NUDIFLORUM)
UNDERDRAIN
4" NON —PERFORATED
PVC PIPE
BERM
Grass Weir 1. THE ORIGINAL DESIGN PLANS AND PROFILES USED FOR THIS AS -BUILT SOURCED
FROM 'FINAL EROSION &SEDIMENT CONTROL AND STORMWATER MANAGEMENT
PLAN FOR CASCADIA BLOCKS 4-7" BY MICHAEL MYERS, P.E., DOMINION
ENGINEERING, DATED SEPTEMBER 9, 2014.
CLEAN-0F�
(TYP)
TYPICAL PLANTING SCHEMATIC
O
NOT TO SCALE
D WORK WAS COMPLETED ON JULY 29, 2022.
DENOTES AS -BUILT INFORMATION
THIS REVIEW DOES NOT IMPLY IN ANY WAY;
a. THAT INSPECTIONS WERE MADE DURING CONSTRUCTION,
UNDERDRAIN b. TO THE QUALITY OF THE WORK, OR
4" PERFORATED C. TO ANY ELEMENT OR STRUCTURE NOT VISIBLE OR DEPICTED ON THE
PVC PIPE PHYSICAL SURVEY.
I, DUSTIN GREENE, HEREBY CERTIFY THAT, TO THE BEST OF MY KNOWLEDGE, THIS
AS -BUILT PLAN REPRESENTS THE ACTUAL CONDITION OF THE STORMWATER FACILITY,
AND THAT ALL ASPECTS OF THE STORMWATER FACILITY WERE CONSTRUCTED
SUBSTANTIALLY IN ACCORDANCE WITH THE APPROVED DESIGN PLANS, UNLESS NOTED
OTHERWISE.
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Dustin E. Greene
Lic. No. Q
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DRAFTER:
CS
DESIGNER:
DG
PRODUCTION
ZD
DATE:
08/05/2022
SCALE:
AS SHOWN
JOB:
CASCADIA
FILE:
12.0065
SHEET:
1_2 _F 1