HomeMy WebLinkAboutSW3220302_Plansheet EX01 - Proposed Drainage Area_202206130000 '
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--
-- -- FUTURE MANUFACTURING
- - BUILDING 12,000 SF
\ - 4.775 AC +-
DB 2990-6 4
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- 86
857
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8 a55
FT6 855 854 853 852
DA TOBMP
2.742 AC
\ \ 1 19,449 SF
DRAINAGE AREA TO BMP ` IMPERVIOUS TO BMP
1.674 AC
CROWN ATLANTIC CO. \ \\ 72,929 SF
DB 1 1 13-540 �\
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UNDERGROUND POWER 11
WATERSHED LINE
WS-IV CRITICAL GAS LINE CABLE LINE - -----`-- -G
LAKE NORMAN LUTHERAN CH. - �
SEWER UMP
DB 555-731
ASSUME ALL
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OFFSITE DRAINAGE
IS 100% BUA2,11 SF
6 SF
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- ! NOWWON
- NOT IN WATERSHED
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/ 856 855 53 - ----- -----------
8 852 851850 849
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EX. STORM MANHOLE
RIM: 846.5
INV IN: 839.5
INV OUT: 839.4
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847
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COMMERCIAL BUILDING
6
ONE STORY C >
EX. BUILDING = Z I
/ °' 17,030 SF
CO LOADING �LKPIELL
OD
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/ NEW ADDITION , d
5,203 SF O
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8
d
4 d
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11 \ 1 847
q� PROP. BYPASSED DRAINAGE AREA = 0.568 AC (24,760 SF) 467
j �ab E PROP. IMPERVIOUS BYPASSED = 0.508 AC (22,148 SF) REA
® PROP. NON -IMPERVIOUS BYPASSED = 0.060 AC (2,612 SF) TRACK
84
B43-
monon i •®
INLET (TO BE CONVERTED TO CURB T AFTER PH EC)
- g5� $43� - GRATE: 843.4'
INV:
- CURB INLET (TO BE CONVERTED INV:841.1' DRAINAGE AREA
TO JUNCTION BOX AFTER PH1 EC) TO BYPASS BMP
GRATE: 844.2'
INV IN & OUT: 840.8'
EX. STORM STRUCTUI
RIM: 84�
INV IN & OUT: 83E
EX. 15" RCP PIPE
60' RIGHT OF WAY
PER DEED BOOK 787-339
(30' EACH SIDE OF BOUNDARY)
:TAL BUILDING
TO REMAIN
(DA TO BMP + DA OF
BYPASS)
THE INVESTMENT CO.
DB 2224-807
PB 15-417
IMPERVIOUS SUMMARY
ITEM
SQUARE
FOOT
ACRES
PERCENTAGE OF
TOTAL SITE
TOTAL SITE AREA
195,759 SF
4.494 AC
N/A
EXISTING BUA
50,545 SF
1.16 AC
25.82 %
EXISTING BUA TO BE REMOVED
16,572 SF
0.38 AC
8.47 %
EXISTING BUA TO REMAIN
33,973 SF
0.78 AC
17.35 %
PROP. PARKING
51,222 SF
1.18 AC
26.17 %
PROP. SIDEWALK
1,600 SF
0.04 AC
0.82 %
PROP. BUILDING
17,203 SF
0.39 AC
8.79 %
FUTURE BUA
17,360 SF
0.40 AC
8.87 %
PROPOSED BUA
87,385 SF
2.01 AC
44.64 %
TOTAL NEW IMPERVIOUS
121,358 SF
2.79 AC
61.99 %
IMPERVIOUS NET CHANGE
70,813 SF
1.63 AC
36.17 %
TOTAL PERVIOUS
74,401 SF
1.71 AC
38.01 %
-- 15" RC
EX. WATER
INVERT
METER
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IMPERVIOUS SUMMARY - BMP
ITEM
SQUARE FOOT
ACRES
TOTAL SITE AREA
195,759 SF
4.49 AC
DRAINAGE AREA
119,449 SF
2.74 AC
OFFSITE BUA TO BMP
2,116 SF
0.05 AC
ONSITE BUA TO BMP
70,813 SF
1.63 AC
TOTAL BUA TO BMP
72,929 SF
1.67 AC
ITEM
PERCENTAGE
BUA % OF SITE AREA
37.25 %
BUA % OF DA
61.05 %
1. CONTRACTOR IS FULLY RESPONSIBLE FOR CONTACTING APPROPRIATE
PARTIES AND ASSURING THAT EXISTING UTILITIES ARE LOCATED PRIOR TO
BEGINNING CONSTRUCTION.
2. CONTRACTOR IS RESPONSIBLE FOR PLACING BARRICADES USING
FLAGMEN, ETC., AS NECESSARY TO INSURE SAFETY TO THE PUBLIC.
3. ALL PAVEMENT CUTS, CONCRETE OR ASPHALT, ARE TO BE REPLACED
ACCORDING TO STANDARDS OF THE DEPARTMENT OF TRANSPORTATION.
4. SHORING WILL BE ACCORDING TO OSHA TRENCHING STANDARDS PART
1926 SUBPART P, OR AS AMENDED.
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Know what's below.
Call before you dig.
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REVISIONS:
A2022-3-29 1ST EC REVIEW
2 2022-5-13 NCDEQ COMMENTS
3 2022-6-9 NCDEQ COMMENTS
POST -DEVELOPMENT DA.DWG
PROJECT NUMBER: 221011
DATE: 2/4/2022 DRAWN BY: KIW
EXO1 12
SHEET OF
POST -DEVELOPMENT DA.DWG - PLOT: Kennedy - THU. 6-9-2022 2:41 PM