SW4211202_Plansheet SWM1 - Proposed Drainage Area_20220520

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0.75" IRON PIPE SET 2" IRON PIPE DAVIDSON COUNTY LINE I FOUND OFF LINE \
AT DISTURBED PIPE FOUND S 01°00'20"W \
8" TALL I 1.69' TIE
2" IRON PIPE 0.75" IRON PIPE
FOUND � -i 0.75" IRON PIPE
S 89°11'05"E 0.75" IRON PIPE
1 FOUND
I I � I 172.24' TOTAL FOUND S 89°14'35' E 12" TALL S 89°45'25"E FOUND D ��^ FOUND
0.75" IRON PIPE CM 6.48'�81 \ \ 385.50' TOTAL 293.78' TOTAL FOUND LINE NTS
/ n
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#4 f�EBARK \ \ N 8959'54'`E \ \ \ / / - -
FO ND _ ` 82.52' f- 85.1 T
\ \ \ "14,9.96\T� \ \\ \ \ \ / 1 N 89°45'25"W N 89°49'53"W
2" IRON PIPE / 167.69' TIE 345.48' TIE
FOUND 0.75" IRON PIPE
8„ TALL SET
11 1 LOT
J I \ JAMES COLTER I I 1 \ 1 \ \ 10 \ I I I
/ I 1 DB 1868 PG 667 l 1 \ 1 \\ \\ 36,003 SF O l I / of
PB 61 PG 21 I I Ill 1\ 1 1 \ \ 35,374 SIF / / 1
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39,614 SIF
04� 820-
47,013Sli�
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1.0
. 3 10,00 / 53,125
CID. 9�00
DITCH4
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/ 18,415SF
DITCH10 - \ �o \ 0.42AC
EBAR I
FOUND / I 1 I I -
1 26696 SF ,` \
i
61 AC
1 Lb- \ ` X ' / TRACT B /
MICHAEL ELLER
DB 2369 PG 548
60,924 SF 1 1 \ 1 \ I \. \ -® - - _ / / PB 64 PG 5,33L�24 SIF
I /
JAMES COLTER 1 \I \ \ \ \ \ \ \ \ 1 \ 33,1120\SIF \
DB 1868 PG 667 `\ \ i \ \ ADD 226,275 SF \ \ ` \ \ \ \ / / / -
/ --
TO \\ � \ \ \ \ \ \ \ \ DITCH9 \ ,---- --__� / / _ ----- /
/ \ \ \ \ \ \ \ \ \ \ 6,958 SF \ -
WETLANDS \ \ \ \ \ \ \ \ d'
WETLAND DELINEATION \- ) DITCH 12 \ \ \ \ \ \ \ \ \ \ 0.16 AC 00
BY PILOT ENVIRONMENTAL, INC. �\\� 107,841 SF \ \ \ \ \ \ \ \ \\ \ \ \ \� \ \ \ \ 1 DITCH 3-
/ \ \ 35,2, E F
(BRADLEY S. LUCKEY, PWS) - _\ \ 2.48 AC \ \ \ \ \ \ \ \ \ \ \ \ '_1 \ \ \\ \ 21,738 SF
PROJ. # 6935 \ \ \\ \ \ \ I 00 0.50 AC
AUGUST 30,2021 °° �-
/
#127,092 S /
\� A: 185.64
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DITCH 11 ` 51, 2 S 8,330 SF ! \ \ \ \
\ / / /25,2/7'/ S�
/ 1 / 17,456 SF 0.19 AC 15 I \ \ \ \ \ \ \ I \ \ \ \ \
�3REgl ROBERTS/ / / / 0.40 AC / DITCH 7
W / '- - 23,097 SF 27,640 \ \ I \
B �160 eG 2339 / / 1 _ \ / I I Hw 101 \ \
Q ADD DITCH AREAS 5-7 _\\ /
\ / (/ � M / \ o I 0.53 AC / - I o STA: 0+00.00
\\ \\w / 826 8 \ / I I IIVVOUT:833.80 \\ \ \ \ \ \ \ \\ \ I \
\\ \ \�J J \ \ DRAINAGE TOHW#101
OFFSITE: 140,985 SIF
ONSITE: 85,289 SF \ \
/58,575 SF I �x 34,6.35 SIF
\ \ / GALVANIZED i 2�00 .001-1 ' I
CARRIAGE BOLT / 826 0 o I
\ / / FOUND
1" IRON PE FOUND
\ N 01 °05'44"E 18" TALL cb - - / /O N 86 18'39"W I I
\ 49.16' / �'� 1" IRON PIPE 1 / - - / / 1 1 i �- / - 132.76' TIE I �_ S 86'22'08"W \
199.96' FOlJND #5 REBAR DITCH 6 / / / / / / I 2 / / / FOUND
/
60,910 SF ct5� DO - 20,916 SF 1 5/8" SOLID IRON I
1.40 AC 28?AF i' C / ROD FOUND
' DITCH 2
41,024SF��- // / / / 1 OFF LINE0.2'
I 28,603 SF
0.66AC I I
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/ DITCH I � I 29,460SF
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0.27 AC 13,245 SF /
- - - / 0.75" IRON PIPE _ 0.30 AC
p SET N 8 ` \ 0.75" IRON PIPE
10 1°0T18"E I� W�� �/ SET /
16.93' TIE " 1" IR^N I PE `/ V - `/ N' EX. 8" WATERLINE�� BENCHMARK
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c6 C&G OB /�/ oE/P _
J / CONC. Ce IL W -
/ DRIVE CONC. _. _ - - _ N 86°08'27"W r
/ - - -w I DRIVE C6 - 167.71' TIE
- - - - 60' R/w \ Y KORY TREE
ROAD -1 DB
- PER PB 15 PG 61 O a ( / SR# 1508 (VARIABLE R/W) Q coNc.
0.75" IRON PIPE J
In O DRIVE
C&G
NC GRID = a 8l ll/ PER NCDOT
m �I�� I / I I NAD83(2011) Zw;`°
/ - - - - - W I I I GRID COORDINATES I LLJ a I
I I I N:819003.360 FT. U)
Q I I E: 1626922.259 FT. Z
--- I w LL I I Lug
w I \
SITE DATA
OWNER/ PIN: 6821-02-69-8499 "
DEVELOPER: ISENHOUR HOMES, LLC
3411 HEALY DRIVE, SUITE A
WINSTON SALEM, NC 27103
PHONE: [phone]
TODDISENHOUR
[e-mail]
ENGINEER: ALLIED DESIGN, INC.
4720 KESTER MILL ROAD
WINSTON-SALEM, N.C. 27103
PHONE: [phone]
FAX: [phone]
STEVE M. CAUSEY, P.E.
[e-mail]
VICINITY MAP
NOT TO SCALE
GENERAL REQUIREMENTS:
PER 15A NCAC 2H & THE NCDEQ STORMWATER DESIGN MANUAL
.10031 THIS IS A LOW DENSITY PROJECT (1.1 DWELLINGS PER ACRE) TO REMAIN LESS THAN 24% BUILT UPON AREA.
.10031 DISPERSED FLOW - THIS PROJECT SHALL BE DESIGNED TO MAXIMIZE DISPERSED FLOW THROUGH VEGETATED AREAS AND MINIMIZE
CHANNELIZATION OF FLOW. PLEASE NOTE, HOWEVER, THERE ARE TWO EXISTING CHANNELS. PIPED FLOW WILL BE LIMITED TO
EXISTING CHANNEL RUNOFF FOR THE SOLE PURPOSE OF ONE ROAD CROSSING AND TO AVOID BISECTING ONE LOT. SOME OF THE
EXISTING CHANNEL FLOW WILL BE CONVEYED THROUGH NEW VEGETATED CONVEYANCES.
.10031 VEGETATED CONVEYANCES - STORMWATER THAT CANNOT BE RELEASED AS DISPERSED FLOW SHALL BE TRANSPORTED BY
VEGETATED CONVEYANCES. SIDE SLOPES SHALL BE NO STEEPER THAN 3:1, AND THE CONVEYANCE SHALL BE DESIGNED SO THAT IT
DOES NOT ERODE DURING THE PEAK FLOW FROM THE 10-YEAR STORM.
.10031 VEGETATED SETBACKS - WHILE THERE ARE NO STREAMS PER THE NRCS OR USGS MAPS, THERE IS A PORTION OF A POND ON THE
SITE AND VEGETATED SETBACKS WILL BE MAINTAINED AROUND THE NORMAL POOL.
.10031 STORWMATER OUTLETS - STORMWATER OUTLETS SHALL BE DESIGNED SO THAT THEY DO NOT CAUSE EROSION DOWNSLOPE OF THE
DISCHARGE POINT DURING THE PEAK FLOW FROM THE 10-YEAR STORM.
Al DEED RESTRICTIONS AND PROTECTIVE COVENANTS. THE PERMITTEE SHALL RECORD DEED RESTRICTIONS AND PROTECTIVE
COVENANTS PRIOR TO THE ISSUANCE OF A CERTIFICATE OF OCCUPANCY TO ENSURE THAT THE PROJECT WILL BE MAINTAINED IN
PERPETUITY CONSISTENT WITH THE PLANS AND SPECIFICATIONS APPROVED BY THE PERMITTING AUTHORITY.
.10031 COMPLIANCE WITH OTHER REGULATORY PROGRAMS. THE PROJECT SHALL COMPLY WITH ALL OTHER APPLICABLE REQUIREMENTS.
.10401 PERMIT ISSUANCE - LOW DENSITY PROJECTS SHALL NOT REQUIRE PERMIT RENEWAL.
Pipe Outlet to Well-defined
Channel
sscm�+.r9�r�
Notes
1. La is the length of the riprap
apron.
2. d = 1.5 times the maximum
stone diameter but not less
than I
3. In a well-defined channel ex-
tend the apron up the channel
banks to an elevation of 6"
above the maximum tailwater
depth or to the top of the bank,
whichever is less.
4. A filter blanket or filter fabric
should be installed between
the riprap and soil foundation.
Filter
blanket
GENERAL NOTES
1. TOTAL SITE AREA = 19.28 ACRES.
2. TOTAL DISTURBED AREA = 8.71± ACRES.
PIPE OUTLET
STABILIZATION
(OUTLET 100)
PIPE DIAMETER=15"
LENGTH APR011
WIDTH APROI 1.3'
dmax=0.4'
APRON THICKNESS=0.6'
NCDOT RIPRAP Cl
PIPE OUTLET
STABILIZATION
(OUTLET 200)
PIPE DIAMETER=15"
LENGTH APR011
WIDTH APROI 1.3'
dmax=0.4'
APRON THICKNESS=0.6'
NCDOT RIPRAP Cl
IVY BROOK
Built Upon Area (BUA) Allocation
October 19, 2021
Revised 5-20-22
(Acres) (Square Feet)
Total Onsite Drainage Area
19.16 834,578
Excludes Existing Total Surface Water Area
Number of Lots - 21
New BUA on subdivided lots
3.88 168,945
Home (Footprint) BUA Per Unit/Lot
3,750
Driveways per Lot
1,200
Sidewalk, Patios, Pools, Outbuildings, etc. per Lot
3,095
Subtotal - BUA per lot
8,045
Streets in Public RM
0.72 31,316
Total BUA
4.60 200,261
Percent Impervious
23.995%
BUA Allocation per Lot (square feet)
8,046
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GRAPHIC SCALE
\ � 60 0 30 60 120
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IN FEET )
1 inch = 60 ft.
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STORMWATER
MANAGEMENT
PLAN
SHEET
24
SWM1