SW3180905_Plansheet - Proposed Conditions/Site Plan_20210712

PO"�PO" °l�� _ NOTE: OPEN SPACE INCLUDED IN
- P- \ ' ��- PROJECT AREA FOR LOW DENSITY
-t - " _ _ DEVELOPMENT. SEE SHEET C414 /
JOSEPH D.JORDAN _ -P-p _ _ FOR FULL DRAINAGE AREA &
09
EXIST. R/W (TYP) PID: 06066041 T - - P-o" _ _ PROJECT AREA LIMITS \ JASON R. BEADNELL
/ \ I I/ DB: 7168 PG. 712 I _ _ _ _\ P-OH DB:6541 _ _ - \ PID: 5 PG. G.590
�P-per
PROP. ��_ p" PO"� - EXIST. PROJECT BOUNDARY (TYP)
\� EXIST. EOP (TYP)
-
IIr \
-
\\ \\+/ /\ `+\/ ✓+\ \/\ \\+ /\ / \ 8/�\p/5"\ /\ ++/ -�/6 \�R\
'OH
%\P+' /3THR NORTH NA II, L.P.
PID:06066040 I \ + ✓ /�\ v 'O
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\ "
DB6922 PG. 695
o /\
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PID:06042124
GUDRID VALDEZ AL R DOUGLAS O'NEAL DB7184 PG. 521
PID006036 65PID:06066035 DB:881 PG.789 PID:06066037
DB5018 PG. 828 DB6875 PG. 358 °35
EXIST. PROPERTY LINE (TYP) DEREK E. AND TAMARA C.
BSS PID066608
DB4947 PG. 390 CHARLESJWRIGHT
DB897 PG. 195 PROP. SIDEWALK RII(IMPERVIOUS AREA) PD�0
76�
04m4
\2
/ 123
DB6844 PG. 83
-_
8RONALD K. JONES aOL-
DB6368 PG. 799
PROP. RW(TYP) O o
N
IN, EXIST. PROJECT BOUNDARY (TYP) BRIA/
N\
+
B\rA
_S++/Hrr A/++M
PID:06042122
HERBERT W. GODWIN DB 6596 PG. 56/r
\�5
PID06066033
DB6066 PG. 751 79
ofLORETTA A. BR
+
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A
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PID:06042121
DB3696 PG. 700
DONALD A. MCINNIS PROP. PROPERTY LINE (TYP)
PID06066032/ mB972 PG. 521 - - - - - - - -Dr0o
(�4) 11 )
PROP. SIDE
(IMPERVIOUS AREA)
WALK 55
FRANCES MAUREEN WICKLUM
PID:06066031
DB649 PG. 642 /110
PROP.ROAD 1N(IMPERVIOUS AREA)
KYLE JEFFERY DUNN rrPID06066030
DB1049 PG. 550 �
-------------- 2
++++ + PROP. ROAD
---- + +++++ + (IMPERVIOUS AREA)
+ L
\
_. 7+ PROP. PROPERTY LINE (TYP) +t n
++r+++
r +I
r+ �
+
t+ + __ + + + ++ + EXISTING LAKE / O > /
r / + +
r
tt t
o 0
+ r r r+ r r r+ r r+ r r++ r r++
\ \ \ \ - - - - - - - - - - -- ---- - ++++ r +r+ +r
+ + + + + + + + + + +
r r r r ++ ++ r r++
+ r r r+ r r EXISTING LAKE + ++ r r++ r r
---/ ++++++ �------- ++ +++++++ ++ \ \ V A I I -� + - - % � / + r
J -----
+
+ + +
Ile
EXIST. PROJECT BOUNDARY (TYP)
+ ++ ++ + .+ + + I 13 TWIN LAKES SENIOR LIVING
+r + r+ +r + + r r+++ +r+r + r ++r+
BEL AIR ACQUISITION SUB, LLC 3�sJ�6pCh'� \ \ l / l l I I +++ ++ I I I III I I + + + + + + +++++ + +++++++++ + III / (FUTURE DEVELOPMENT)
PID: 06042001, 06069362
DB:6480PG. 48
a o
PROP. SIDEWALK-
v -- (IMPERVIOUS AREA)_
EXIST. PROJECT BOUNDARY (TYP) \ \\ \ Rl� - I PROP. ROAD I I I� - - - - - - - - L=3�562oN6� ® - ULAH CHUR -
v v F glR (IMPERVIOUS AREA) J o.00� BE 60 RIW)
R I R=15 ( 1346)
_ RIVER LANE -
SR-
v cy�q I I _
� L=3 0.85 - _ 299E BIRCH-
\30 854 107;023.81"E R=150.00p 110.049' 30 2° 18'! 5 - t
104.917' 1-'�Z41 S9 1y0 000 - N85° / �82°�3'28� E
16-- E
64 332 15
\ \ \ 150.000 / _ BONTERRA BUILDERS, LLC
\ / _ PID:06042001J ,
\ \ ® fZfl / DB: 6457 PG. 545
r
-- -� s -- - --
IMPERVIOUS AREA PER LOT -
THIS INCLUDES (BUT NOT LIMITED TO) THE FOLLOWING:
• HOUSE
• DRIVEWAY
• SIDEWALKS
• POOL
• PATIO / DECK
• COURTS
Lot# Impervious Area [sf] Lot# Impervious Area [s
1
6,800
45
9,000
2
6,800
46
6,800
3
8,000
47
6,800
4
9,250
48
6,800
5
9,250
49
61800
6
9,900
50
6,800
7
9,900
51
6,800
8
9,900
52
6,800
9
9,000
53
6,800
10
91000
54
6,800
11
9,900
55
6,800
12
9,000
56
6,800
13
9,500
57
6,800
14
6,800
58
6,800
15
6,800
59
6,800
16
9,400
60
6,800
17
10,000
61
6,800
18
10,000
62
6,800
19
9,000
63
6,800
20
6,800
64
6,800
21
6,800
65
6,800
22
6,800
66
6,800
23
6,800
67
6,800
24
6,800
68
6,800
25
6,800
69
6,800
26
10,000
70
6,800
27
6,800
71
6,800
28
6,800
72
6,800
29
9,500
73
6,800
30
10,000
74
6,800
31
10,500
75
6,800
32
10,000
76
6,800
33
6,800
77
6,800
34
6,800
78
6,800
35
6,800
79
6,800
36
8,500
80
6,800
37
10,500
81
6,800
38
8,500
82
6,800
39
6,800
83
6,800
40
6,800
84
6,800
41
6,800
85
6,800
42
6,800
86
6,800
43
6,800
87
6,800
44
10,000
IMPERVIOUS AREA CALCULATIONS
TOTAL PROPERTY AREA = 4,598,512 SF (105.57 AC)
EXISTING CREEKS AND PONDS = 485,827 SF (11.15 AC)
TOTAL SITE AREA - EXISTING CREEKS AND PONDS = 94.41 AC
LOW DENSITY AREA
TOTAL LOW DENSITY AREA = 4,112,685 SF (94.41 AC)
PROPOSED ROADS AND SIDEWALKS = 327,739 SF (7.52 AC)
PROPOSED LOT DEVELOPMENT = 659,100 SF (15.13 AC)
TOTAL SITE IMPERVIOUS = 986,839 SF (22.65 AC)
TOTAL SITE IMPERVIOUS % = 22.65 AC/94.41 AC = 24.0%
HATCH LEGEND
STREAMSIDE BUFFER
MANAGED USE BUFFER
UPLAND BUFFER
CREEKS/LAKES
SIDEWALK (IMPERVIOUS AREA)
ROADS (IMPERVIOUS AREA)
LINETYPE LEGEND
PROJECT BOUNDARY LINE
PROP. R/W - -
PROP. PROPERTY LINE - -
EXIST R/W - -
EXIST. PROPERTY LINE - -
EXIST. EOP
FEMA FLOODZONE -
0 LandDesign.
'
223 NORTH GRAHAM STREET
CHARLOTTE, NC 28202
704.333.0325
WWW.LANDDESIGN.COM
NC ENG. FIRM LICENSE # C-0658
NOT A CERTIFIED DOCUMENT AS TO THE
ORIGINAL BUT ONLY TO THE REVISIONS.
THIS DOCUMENT WAS ORIGINALLY ISSUED
AND SEALED BY KRISTOPHER W. ROWE, P.E.
LICENSE #32666 ON 07/02/19 FOR PLANS
DATED 06/28/2019. THIS DOCUMENT IS ONLY
CERTIFIED AS TO THE REVISIONS INDICATED
BY REVISION CLOUD UNDER "LOW DENSITY
RTAP".
DALE C. STEWART 07/02/2021
KEY MAP
L
SEAL
PROJECT
i
i
ARo
O
En# 1523
9�
07/02/2021
TWIN LAKES
TOWN OF INDIAN TRAIL,
UNION COUNTY,
NORTH CAROLINA
TWIN LAKES, LLC
231 Post Office Dr. - Suite B-8
Indian Trail, NC 28079
LANDDESIGN PROJ.#
1017398
REVISION / ISSUANCE
NO.
DESCRIPTION
DATE
1
INITIAL SUBMITTAL
8/29/18
LAND DEVELOPMENT
2
12/21/18
SUBMITTAL
LAND DEVELOPMENT
3
02/04/19
SUBMITTAL
LAND DEVELOPMENT
4
02/21/19
SUBMITTAL
LAND DEVELOPMENT
5
05/07/19
SUBMITTAL
LAND DEVELOPMENT
6
06/04/19
SUBMITTAL
LAND DEVELOPMENT
7
06/28/19
SUBMITTAL
8
MIXED DENSITY RTAP
12/14/20
Q9
LOW DENSITY RTAP
07/02/21
DESIGNED BY: RB
DRAWN BY: RB
CHECKED BY: KWR
SCALE NORTH
VERT: N/A
HORZ: 1 "=100'
0 50' 100, 200'
SHEET TITLE
IMPERVIOUS AREA MAP
SHEET NUMBER
C205
ORIGINAL SHEET SIZE: 24" X 36"

■ 1
NOTES:
1. SEE SHEETS C002 - C003 AND C420 - C421 FOR ADDITIONAL NOTES AND DETAILS. I I - '
2. SEE SHEET C421 FOR STORM SEWER GRADES AND INVERT ELEVATIONS. t,OH'
3. SEE GRADING PLANS CHAPTER 4 FOR SITE GRADING INFORMATION. I JOSEPH D.66041 - P-oH _ \
4. CATCH BASIN RIM ELEVATIONS ARE GIVEN TO THE EDGE OF ASPHALT, YARD INLETS AT \ I BID: 68 PG. 71 _ I HW-1 -P-oH HW-143
I DB: 7168 PG. 712 �P-O" - � _ EXIST. POWER \
FINISHED GRADE. P-OH_ _ _ _ EASEMENT
5. RIM ELEVATIONS GIVEN ON THESE PLANS ARE APPROXIMATE AND ARE FOR INFORMATIONAL ���.
/C402
PURPOSES ONLY. ACTUAL RIM ELEVATIONS SHALL BE DETERMINED BY CONTRACTOR AND i ` :�� _ PO"�P
ADJUSTED TO MATCH FIELD CONDITIONS.
6. APPROVAL OF THIS PLAN IS NOT AN AUTHORIZATION TO GRADE ADJACENT PROPERTIES
7. IN ORDER TO ENSURE PROPER DRAINAGE, KEEP A MINIMUM OF 0.50% SLOPE ON THE CURB.
8. CURB AND GUTTER SHOWN ON PLANS MAY BE ADJUSTED BASED UPON FIELD STAKING BY /
('40 1 PROP
INSPECTOR / ENGINEER. ASSOCIATED STORM DRAINAGE MAY ALSO REQUIRE MODIFICATION —\ — i / ` . BMP 1
=_ POH—
BASED UPON FIELD CONDITIONS. — — — I \ \ DI-141
9. THE PURPOSE OF THE STORM DRAINAGE EASEMENT IS TO PROVIDE STORM WATER _ / MH-142
CONVEYANCE AND ANY STRUCTURES AND/OR OBSTRUCTION TO STORM WATER FLOW IS — — — — — — — __ °"� -
PROHIBITED.POH
10. ALL DESIGN AND CONSTRUCTION METHODS SHALL BE DONE IN ACCORDANCE WITH UNION — — \ 61 _ �P-OH
COUNTY AND NCDOT STANDARDS AND SPECIFICATIONS. \ \ THR NODBNORTH CAR6922 6040 II, L.P. '
11. ALL YARD INLETS SHALL BE DROP INLET TYPE - SEE DETAILS. - BID: BOUNDARY (TYP)
/ 1 : PPG. G. 6
95 _ O \ ' 63 \ _
PROJECT
CI-133 ' 64 / \',.'�
EXIST. R/W (TYP)
CI-138 I
/ \ 65 \ BRI PIID: 060 4212
4TRAVIS LMS
\ / / \ DB: W16E PG. 217
/ / \ ALFRED C. TAYLOR DOUGLAS J. O'NEAL EQD'gR CED \
PID:06066036 PID:06066037 '4R DRIVE /
/ DB: 881 PG. 789 DB: 6875 PG. 358
EXIST. EOP (TYP) 1 \ \ — — _ _ EXIST. R/W (TYP)
DEREK E. AND TAMARA C. _ \
BROSTERHOUS \ CI-139 '
/ GUDRID VALDEZ 1 / z CI-134
PID:06066035 DBI4947 PG 390
/ \ DB: 5018 PG. 828 { 1 \ CHARLES J. WRIGHT CI -136 J CI-135
\ / PID: / 06066039 DB: 897 PG.G. 195 ' CI-137 Q \
RICHARD TAYLOR
\ / p CI-135A PID.06042123 0
\ l \ 58 I O DB: 6844 PG. 838 m
� / Q
/ \ RONALD K. JONES
/ PID: 06066034 DB: 6368 PG. 799 PROJECT 77 O \ I
BOUNDARY (TYP) 2- lu
DI-202
/ I O z
CI-144 � DCI-128 '� I !n
Y
/ /� BRIAN BASHAM
PID.06042122
HERBERT W. GODWIN O - - 78
CI-129 DB: 6596 PG. 565 I
PID:06066033 49
\ / / DB: 6066 PG. 751 \ \ 86 68
CI-145
/ / \ - CI-179 CI-147 \ ' /10
\
LORETTA A. BRIDENHAGEN
ID604212
/ m CI-180 CI-181 0� DB700 3696 PG.
DI-130B i \
/ PROPERTY LINE (TYP) \ Z DI-193 / { CI-131 7J \ FES-203
CI-130 \
CI-170 53 \ CI-155A 70 I
/ DONALD A. MCINNIS \
/ PID: 06066032 DI-153D CI-148 CI-156 DI-126B , \
/ / \ DB. 972 PG. 521 / \ CI-153F 54
/ / \ DCI-153E F5),5)D
CI-156ACI-182 \ \ DI-195 CI-157B / PROPERTY LINE (TYP)
FES-183 / I O CI-157 / O
\\\ M �P
42 DCI-151 82 PEE { 71
CI-192 !� � •� � CI-149 80 , R (� DCI-126A I
/ / \ Q 41 O CI-157C SVGP CI-155 CI-126 i PID \\
PRANCES MAUREEN WICKLUM \ O � $1
DB 649 PG.
642 v CI-191 \ CI-149A DCI-159 / 99 \ ,
23
DI-190 CI-171 / CI-159A01
\ 34 C1-153 CI-159AA 9 72 CHRISTPHER S. WEST
`C
\ DCI-185 OQ \ CI-172 PID.06042120
CI-152 I DB: 1513 PG. 111
� _ _ { i
FES-154
\ / \ CI-151A - 25 * O
• KYLE JEFFERY DUNN \ - 1\ 43 40 / / \ \ \ 33 DCI-159B CI-159D
PID:06066030 - - -
DB: 1049 PG. 550 - - - - - - - - C(/ CI-1 60 9 +
/ 26 \
• • �..O +*+ ++T CI-1 27 { CI-1 18A \
* ++ . . . . . ..r + . . . . . . . . . / 35 �/' O ++
+ + + + 44 +
++ +++ / �v O / O + \\ ++ \ / / O \
\ FES-186 +
++, . . . . . +++ ++ +. 50' UPLAND CI-187 � +++ ++,++ \ 22
+ . . . . a \ BUFFER (TYP) 4z _ m � + + \
+ +. ++ ++
++++. \ 39 \ \ \ / —_ - D +++ + +*+++ \ { CI-118 \
F J
r h +++ + ++++ ** U CI-188 \�\\ V/ FES-165 O CI-162 28 +.++ * 21
*, DCI-177 FES-189 \ CI-164 G I +++ ++* ++ 75
\,
+ �.......... 36 +
+ CI-119
+ \ + + \ i
FES-120
+ ..... +
+ + 38 29 +
\ \ +
+ 9 + + +
+ + + + + + + + + + + + +
/ \ \ / 20 CC-122 /
+++ ++ + ++ + ++
• : •\ 37 +
+ O \ + +
FES-178 + 30 +++ ++
+ + ++ + + + OJ \ ++ +
++ EXIST. LAKE ++ ++ `+ + ++ ++ +` + G / 15 ++ ++ CI-115A +
+ + + + r + O + + + +
++ *`.++ .+ +++ ++.`+ +`+ !GPI \� ++ + +++ + + + + + +
+ + + + + + + + +
+ + + +
+ ++ ++ + ++ +++ ++
++ ++ ++ + ++++++++++ +++++ / ++ +
+ 16 +
+ / / O +
++++ ++ +++` +++ O 0' MANAGED USE BUFFER (TY +++ CI-116 + CI-115
++ +++ + ++ 30' STREAMSIDE +++ ++++
\ ++ +
+ +
\.�• • + + ++++ ++++ ++ / BUFFER (TYP) +++ +++
+ + + +
+ n +
+ +
+ +
+ _ 17 +
+++++++ ++ +++++ +++ ++ ++
\ \ \ . . . . . . . . . . + + + + + /
......
...`�++ + + +++ +.` EXIST. LAKE ++` + + + + + + ++ ++
+ +++++++++++++ ++++ ++++ + + + ++++
..�.•.•. . + . .•.•.• � i • FES-114 ++*+ +++ ++++
\ \
\ 0�.... { ++ ++ + ++* P
+++ ++ + ++ ++
\ + + + + +
+++++ ++ + + /
+ + + + + +
+ +++++ + + �O�P /
+*+
\ + + + + + + + + + + + + + + + +
PROJECT \ \ \ +
+ + + + + + + + + + +
BOUNDARY (TYP) \ \ \ \ 4 8+ I01,
\ \ \ \ + + + + + + + + + i+ + + + + + + + + + +
\ ++ ++ + +++++++++ + + ++++ + ++++ +
\ \ ++++ + + ++++ I 1 ++++ + + + + +
\ I I CI-100A CI-98
EXIST. R/W (TYP) �v A V �R� FES-112 I CI-107 10 11 FES-106 12 CI-100 CI 99 EXIST. R/W (TYP)
� CI-101
CI-104
I CI-105
CI-1
\ F� - - - -
CI-110 I CI-108-
- —------- -
i (A —
_ DI-107B < r CI-1 CI-102
-
\
BEL AIR ACQUISITION SUB, LLC _ _ -
PID: 06042001, 06069362 I CI-109 f1l 'EuLpCH ROAD -
DB: 6480 PG. 48 UR
_ C404
DI-107A
LandDesign.
223 NORTH GRAHAM STREET
CHARLOTTE, NC 28202
704.333.0325
WWW.LANDDESIGN.COM
NC ENG. FIRM LICENSE # C-0658
NOT A CERTIFIED DOCUMENT AS TO THE
ORIGINAL BUT ONLY TO THE REVISIONS.
THIS DOCUMENT WAS ORIGINALLY ISSUED
AND SEALED BY KRISTOPHER W. ROWE, P.E.
LICENSE #32666 ON 07/02/19 FOR PLANS
DATED 06/28/2019. THIS DOCUMENT IS ONLY
CERTIFIED AS TO THE REVISIONS INDICATED
BY REVISION CLOUD UNDER "LOW DENSITY
RTAP".
DALE C. STEWART 07/02/2021
KEY MAP
f—
SEAL
' * I CI * =
i th °
\\\j111111111//��
988
07/02/2021
PROJECT
TWIN LAKES
TOWN OF INDIAN TRAIL,
UNION COUNTY,
NORTH CAROLINA
TWIN LAKES, LLC
231 Post Office Dr. - Suite B-8
Indian Trail, NC 28079
LANDDESIGN PROJ.#
1017398
REVISION / ISSUANCE
NO.
DESCRIPTION
DATE
1
INITIAL SUBMITTAL
8/29/18
LAND DEVELOPMENT
2
12/21/18
SUBMITTAL
LAND DEVELOPMENT
3
02/04/19
SUBMITTAL
LAND DEVELOPMENT
4
02/21/19
SUBMITTAL
LAND DEVELOPMENT
5
05/07/19
SUBMITTAL
LAND DEVELOPMENT
6
06/04/19
SUBMITTAL
LAND DEVELOPMENT
7
06/28/19
SUBMITTAL
8
MIXED DENSITY RTAP
12/14/20
LOW DENSITY RTAP
07/02/21
DESIGNED BY: SMS
DRAWN BY: SMS
CHECKED BY: KWR
SCALE NORTH
VERT: N.T.S.
HORZ: 1 "=100'
0 50' 100, 200'
SHEET TITLE
STORM DRAINAGE INDEX
SHEET
7/12/2021 3:01 PM MEGAN SCHULTZ NA 2017\1017398\CAD\CONSTRUCTION DOCUMENTS\17398 PLN STORM.DWG ORIGINAL SHEET SIZE: 24"X
SHEET NUMBER
C400

LandDesign.
223 NORTH GRAHAM STREET
CHARLOTTE, NC 28202
704.333.0325
WWW.LANDDESIGN.COM
NC ENG. FIRM LICENSE # C-0658
\ / /
JOSEPH D. JORDAN
\ � \ PID:060660416041
\ \ \ / /
\ \ 18" INV. OUT: 624.
\ THR NORTH CAROLINA II, L.P.
/ / 1 PID:06066040
DB: 6922 PG. 695
\ / / EXIST. R/W (TYP)
EXIST. EOP (TYP) 1 \ \
/ GUDRID VALDEZ 1 \
/ / \ PID: 06066035 ALFRED C. TAYLOR \
/ / \ DB: 5018 PG. 828 PID: 06066036
DB: 881 PG. 789 \ DOUGLAS J. O'NEAL 1 \
DB: 6875 PG. 358 I
CHARLES J. WRIGHT
`V DB: 897 PG. 195
\ / / V- / DEREK E. AND TAMARA C. \
BRO
PIDSO 0660385
/ / \ DB: 4947 PG. 390
0
/Cj/ \ \
/ RONALD K. JONES
1
/ PID:060660346034 \
DB: 6368 PG. 799
\ / \
/ PROJECT \ � PROJECT
BOUNDARY (TYP) \ \
BOUNDARY (TYP)
0.80 AC
34,838 sf
CI-179
HERPID 0W.6033 \ 0.77AC RIM:634.29
/ PID: W. GO / 33,546 sf 15" INV. IN: 629.82 (CI-178) /
/ DB: 6066 PG. 751
15" INV. OUT: 629.82 (CI-180) \
53.49 LF OF 15" RCP @ 0.50%
/ \ I
/ 0.61 AC
m
24.63 LF OF 15" RCP @ 0.50% �� 26,356 sf 51
NOTES:
1. SEE SHEETS C002 - C003 AND C420 - C421 FOR ADDITIONAL NOTES AND DETAILS.
2. SEE SHEET C421 FOR STORM SEWER GRADES AND INVERT ELEVATIONS.
3. SEE GRADING PLANS CHAPTER 4 FOR SITE GRADING INFORMATION.
4. CATCH BASIN RIM ELEVATIONS ARE GIVEN TO THE EDGE OF ASPHALT, YARD INLETS AT
FINISHED GRADE.
5. RIM ELEVATIONS GIVEN ON THESE PLANS ARE APPROXIMATE AND ARE FOR INFORMATIONAL
PURPOSES ONLY. ACTUAL RIM ELEVATIONS SHALL BE DETERMINED BY CONTRACTOR AND
ADJUSTED TO MATCH FIELD CONDITIONS.
6. APPROVAL OF THIS PLAN IS NOT AN AUTHORIZATION TO GRADE ADJACENT PROPERTIES
7. IN ORDER TO ENSURE PROPER DRAINAGE, KEEP A MINIMUM OF 0.50% SLOPE ON THE CURB.
8. CURB AND GUTTER SHOWN ON PLANS MAY BE ADJUSTED BASED UPON FIELD STAKING BY
INSPECTOR / ENGINEER. ASSOCIATED STORM DRAINAGE MAY ALSO REQUIRE MODIFICATION
BASED UPON FIELD CONDITIONS.
9. THE PURPOSE OF THE STORM DRAINAGE EASEMENT IS TO PROVIDE STORM WATER
CONVEYANCE AND ANY STRUCTURES AND/OR OBSTRUCTION TO STORM WATER FLOW IS
PROHIBITED.
10. ALL DESIGN AND CONSTRUCTION METHODS SHALL BE DONE IN ACCORDANCE WITH UNION
COUNTY AND NCDOT STANDARDS AND SPECIFICATIONS.
11. ALL YARD INLETS SHALL BE DROP INLET TYPE - SEE DETAILS.
56
0.49 AC
126.78 LF OF 15" RCP @ 3.99%
CI-148A
RIM: 639.95
15" INV. IN: 635.69 (CI-146)
15" INV. IN: 635.69 (DI-193)
c�\ CI-181 / /
15" INV. OUT: 635.69 (CI-148)
RIM:638.32 0.56AC \
15" INV. IN: 629.27 (CI-180) 24,534 sf /
/ / \ 0 18" INV. OUT: 629.02 (CI-182) 52 58.70 LF OF 15" RCP @ 4.51%
\ G
47 24.51 LF OF 18" RCP @ 0.50% 24, 00 sf 5'2 53.38 LF OF 24" RCP @ 0.60% /
/ \ / J
0.57 AC 0.57 AC DI-1535
24,860 sf 24,667 sf RIM: 627.8C
RIM:639.05 / IN,/ \ ®` CI24" INV. OUT: 623.78 (DCI-153E)
/ \ CI-178 15" INV. OUT: 634.88 (CI-172) RIM: 29.37 LF OF 24" CLASS IV RCP @ 0.50%
/ \
/ DONALD A. MCINNIS 15" INV. OUT: 629.95 (CI-179)
PID: 06066032 / 109.17 LF OF 15" RCP @ 5.00%
DB: 972 PG. 521 \ CI-153F
\ \ / G \ 15" INV. IN: 629 5CI-180 \ \ RIM:635.01
/ 46 / 16 (CI3979) CI-182 \ SUGq/�Mgp`� 15" INV. OUT: 629.84 (DCI-153E) /
0.63 AC 15" INV. OUT: 629.56 (CI-181) / / RIM: 638.31 �qN�
\ 27,447 sf 18" INV. IN: 628.90 (CI-1
\ 56.68 LF OF 15" RCP 0.50% 18" INV. OUT: 628.90 (FES-183)
\ PROPERTY LINE (TYP) / 24.53 LF OF 15" RCP @ 0.94 0 / FES-183 �� 51.55 LF OF 18" RCP @ 0.50% \
\ / CI-192 18" INV. IN: 628.64 (CI-182) / FES-183 RI -RA AP \
Q� �
\ RIM: 612.92 WIDTH: 11.5' (MIN.)
LENGTH: 10' (MIN.) 'vim DCI-153E / \ 15" INV. IN: 608.71 (CI-191) Q 4
/ 15" INV. OUT: 608.71 (DCI-185)
P RIM: 612.94 THICKNESS: 10" (MIN.) RIM: 630.47
Q- 15" INV. IN: 608.94 (DI-190) RIP -RAP CLASS (NCDOT): B Q 24" INV. IN: 623.64 (DI-153D)
/ CI-148
RI M: 637.39
15" INV, IN: 633.04 (CI-148A)
15" INV. OUT: 633.04 (CI-149)
98.15 LF OF 15" RCP @ 4.66%-
/,/ 24.53LFOF18"RCP@4.00%-
/ VI- I46
RIM: 633.46
18" INV. IN: 627.23 (CI-149)
18" INV. OUT: 627.23 (CI-151A)
DCI-151
RIM: 629.76
/ 18" INV. IN: 623.82 (CI-151A)
24" INV. IN: 623.31 (DCI-153E)
/ 24" INV. OUT: 623.32 (DCI-152)
47.31 LF OF
r18" RCP @ 3.22%
\ \ gL
/ 100.87 LF OF 15" CLASS IV RCP @ 4.00% \ �J�P DI-190 INV. OUT: 608.94 (CI-192) /� / / 24'1 NV. OUT: 623.64 (CI
-13F) S3 `FOF3
\ CI-171
\/ RIM: / RIM:628.44 = O/ \ [e-mail]°
45 15" INV. OUT: 610.92 (CI-191) CI-153
PRANCES MAUREEN WICKLUM / 15" INV. OUT: 624.12 CI-172 k
PID: 06066031 / 1.13 AC ( ) J RIM: 630.61 / \
DB: 649 PG. 642 49,150 sf \ \ / / ^ 30" INV. IN: 622.06 (DCI-152)
30" INV. OUT: 622.05 (FES-154)
\ \
' U 47.13 LF OF 15" RCP @ 0.50%
\ 15SDE (TYP) 1
/ DCI-185 ,( ' \ 24.52 LF OF 15" RCP @ 0.50% � 101.82 LF OF 30" RCP @ 0.55% /
\ / RIM: 608.30 U
/ 15" INV. IN: 604.68 (CI-192) 28.33 LF OF 15" RCP @ 7.00% � LL
/ 24" INV. OUT: 603.92 (FES-186) O / ^ FES-154 /
30" INV. IN: 621.49 (CI-153)
83.86 LF OF 24" CLASS IV RCP @ 0.50% / \
KYLE JEFFERY DUNN s/ CI-172
PID:06066030 \ -�/ FES-186
\ DB: 1049 PG. 550 / / 24' INV. IN. 603.51 (DCI-185) 15' SIDE (TYP)
- \ 0.81 AC
\ / - - - - /- • . • . \ \ 35,134 sf
• • - • - / \
\ / i FES-186RIP-RAP APRON /
j - + +++� WIDTH:15'(MIN.) - 9 44
\ / + LENGTH: 13' (MIN.) - - -
• + THICKNESS: 10" (MIN.) � \ 1.58 AC
+ + + RIP -RAP CLASS (NCDOT): B ��. - 68,958 sf
RIM:628.44
15" INV. IN: 624.00 (CI-170)
/ 15" INV IN: 624 00 (CI-171)
5" INV. OUT: 624.00 (FES-173)
CI-187
\ I RIM:615.96 C1188
r
.y
\ \ V
FES-173 \ /
15" INV. IN: 623.76 (CI-172) \
/
5" INV. OUT: 612.51 (CI-188) RIM: 615.97 / k
\ 15" INV. IN: 612.39 (CI-187)
15" INV. OUT: 612.37 (FES-189)
SEE SHEET C403 FOR CONTINUATION
0.8 AC
36,441 sf
24.57LFOF
24" RCP @ 2.00%
DCI-152
RIM: 629.76
24" INV. IN: 622.82 (DCI-151)
30" INV. OUT: 622.32 (CI-153)
z
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NOT A CERTIFIED DOCUMENT AS TO THE
ORIGINAL BUT ONLY TO THE REVISIONS.
THIS DOCUMENT WAS ORIGINALLY ISSUED
AND SEALED BY KRISTOPHER W. ROWE, P.E.
LICENSE #32666 ON 07/02/19 FOR PLANS
DATED 06/28/2019. THIS DOCUMENT IS ONLY
CERTIFIED AS TO THE REVISIONS INDICATED
BY REVISION CLOUD UNDER "LOW DENSITY
RTAP".
DALE C. STEWART 07/02/2021
KEY MAP
SEAL
PROJECT
07/02/2021
TWIN LAKES
TOWN OF INDIAN TRAIL,
UNION COUNTY,
NORTH CAROLINA
TWIN LAKES, LLC
231 Post Office Dr. - Suite B-8
Indian Trail, NC 28079
LANDDESIGN PROJ.#
1017398
REVISION / ISSUANCE
NO.
DESCRIPTION
DATE
1
INITIAL SUBMITTAL
8/29/18
LAND DEVELOPMENT
2
12/21/18
SUBMITTAL
LAND DEVELOPMENT
3
02/04/19
SUBMITTAL
LAND DEVELOPMENT
4
02/21/19
SUBMITTAL
LAND DEVELOPMENT
5
05/07/19
SUBMITTAL
LAND DEVELOPMENT
6
06/04/19
SUBMITTAL
LAND DEVELOPMENT
7
06/28/19
SUBMITTAL
8
MIXED DENSITY RTAP
12/14/20
LOW DENSITY RTAP
07/02/21
DESIGNED BY: SMS
DRAWN BY: SMS
CHECKED BY: KWR
SCALE NORTH
VERT: N.T.S.
HORZ: 1 "=60'
0 30' 60' 120'
SHEET TITLE
7/12/2021 3:01 PM MEGAN SCHULTZ NA 2017\1017398\CAD\CONSTRUCTION DOCUMENTS\17398 PLN STORM.DWG ORIGINAL SHEET SIZE: 24" X 36"
DETAILED STORM DRAINAGE
PLAN
SHEET NUMBER
C401

LandDesign.
223 NORTH GRAHAM STREET
CHARLOTTE, NC 28202
704.333.0325
WWW.LANDDESIGN.COM
NC ENG. FIRM LICENSE # C-0658
MH-142
_ - RIM: 639.89
- 15" INV. IN: 635.52 (CI-139)
�P-OH - - 18" INV. IN: 635.27 (DI-141)
-'OH - - _ 24" INV. OUT: 628.19 (HW-143)
-POH- - 75.3 F 18" CP 2. °o
HW-1 - DI-141
_ - I 18" INV. IN: 624.02 (OS-1) - _ RIM: 641.80
- � - _ ,oH- - 18" INV. OUT: 636.77 (MH-142)
HW- RIP -RAP APRON -
PIPE INVERT: 624.00 23.45 LF OF 24" RCP @ 0.80% H _ -
WIDTH: 18.5' (MIN.) POH
LENGTH: 15' (MIN.) HW-143 P-pH
THICKNESS: 18" (MIN.) RIM: 630.75 P-OH - -
CLASS B RIP -RAP (NCDOT) 24" INV. IN: 628.00 (MH-142)
P-OH
52.48 LF OF 18" RCP @ 0.50% - -POH- - -
I < ` 'OH
PROP. BMP � -� � � �P-pH
P-OH
OS 1 _'OH
RIM:626.49 \ \ <
18" INV. OUT: 624.28 (HW " i
HW- RIP -RAP APRON
PIPE INVERT: 628.00 \ -
WIDTH: 16' (MIN.) LENGTH: 14' (MIN.) r -�
ITHICKNESS: 18" (MIN.) '
CLASS B RIP -RAP (NCDOT) 15' SIDE (TYP) \ '
256.45 LF OF 15" RCP @ 3.22% \
0.64 AC I
27,739 sf 62
0.40 AC 63
/ CI-139 \ ' 17,451 sf
IRIM:648.56 \ 15" INV. IN: 643.78 (CI-137) CI-133 \ '
\ 15" INV. IN: 643.78 (CI-136) \ RIM: 653.53
\ 15" INV. OUT: 643.78 (MH-142) \ 15" INV. OUT: 648.10 (CI-134)
51.90LFOF15"RCP @0.50%
/ 24.51 LF OF 15" RCP @ 0.95%
/ CI-138
RIM- 648.01
I / 15" INV. OUT: 644.16 (CI-137) _
EXIST. POWER /
EASEMENT
- - - ---- - - ---- - - ---- - - --\
'-OH ; - _ / / / / / I I
_
-PpH -
-_,08 _ - '
- P-OH � -
_� -
P °" 1
EXIST. R/W (TYP)
0.50 AC
21,977 sf I I
0.65 AC \ PROJECT BRIAN TRAVIS HELMS
28,315 sf BOUNDARY (TYP) PID: 06042124
DB: W16E PG. 217
0.67 AC _ \
29,362 sf / I
24.49 LF OF 15" RCP @ 0.50%-
�
CI-137
RIM: 648.00 CI-134
I INV 15"
15" INV. IN: 644.04 (CI-138) � 15" INV. IN: 647.86 (CI-133) � VVrn
\ 15" INV. OUT: 644.04 (CI-139) 76 15" INV. OUT: 647.86 (CI-135) \ 0.83 AC \ \ C)
O
36,227 sf !n
/ 92.54 LF OF 15" RCP @ 2.64% 0.54 AC ' \ O
1 59.76 LF OF 15" RCP @ 2.36% \ 15' SIDE (TYP) RICHARD TAYLOR
CI-136 z CI-135 DBI°42123
6844PG. 838
5 Q RIM: 651.23 S RIM: 651.24 \ z
I V 15" INV. IN: 646.22 (CI-135) 15" INV. IN: 646.45 (CI-134) \ \ ' DTI 1
.52 AC 15" INV. OUT: 646.22 (CI-139) 15" INV. IN: 646.45 (CI-135A)
0
22
.52 sf p 15" INV. OUT: 646.45 (CI-136) \ \
24.56 LF OF 15" RCP @ 0.94% O� 53.30 LF OF 15" RCP @ 2.44%- / \ \ DI-202 '
8 7 \ RIM: 655.83
LU
> I 77 0.75 AC 18" INV. OUT: 650.43 (FES-203)
67
CI-135A I Q RIM:652.08 32,576 sf
-
LU RIMCI-144 64906 15" INV. OUT: 647.75 (CI-135) \ 0.52 AC \ \
: .24.49 LF OF 15" RCP @ 2.00% \
15" INV. OUT: 644.20 (CI-145)
z 57 0 DCI-128 \\ BRIAN BASHAM I
O O PID:06042122
0.46 AC LU ' RIM: 655.54 / DB: 6596 PG. 565
CI-129 15" INV. IN: 650.20 (CI-129)
Q 24.57 LF OF 15" RCP @ 0.60%
\ RIM: 655.52 \ 15" INV. OUT: 650.20 (CI-130A)
z 15" INV. OUT: 650.69 (DCI-128)
CI-147 / \ / / 100.15 LF OF 15" RCP @ 6.00%
Z RIM: 645.46 \ , I
O I 15" INV. OUT: 640.89 (CI-146)
O 24.50 LF OF 15" RCP @ 2.05% / Qom+ CI-130A
VV
RIM: 648.87 230.17 LF OF 18" RCP @ 1.00%
\ CI-145 0.62 AC 15" INV. IN: 644.19 (DCI-128)
U 56 RIM: 649.07 27,054 sf 15" INV. IN: 643.05 (DI-130B) , \
W \ 0.49 AC 15" INV. IN: 643.69 (CI-144) /� 15" INV. OUT: 643.06 (CI-130) \
15" INV. OUT: 643.69 (CI-146) / \
_ I 126.78LFOF15"RCP @3.99%
U) \ CI-147A 73.65 LF OF 15" RCP @ 4.00% / 24.56 LF OF 15" RCP @ 2.00%
W RIM: 639.95 IRIM:
15" INV. IN: 635.69 (CI-146) RIM:M:645.44 / / RIM: 644.03
15" INV. IN: 635.69 (DI-193) 15" INV. IN: 640.75 (CI-145) 15" INV. OUT: 639.23 (CI-130) 0.47 AC
15" INV. OUT: 635.69 (CI-148) 15" INV. IN: 640.75 (CI-147) ' / DI-130B \ \ PROPERTY LINE (TYP)
/ 15" INV. OUT: 640.75 (CI-148A) / CI-155A RIM: 647.80 \
29.12 LF OF 15" RCP @ 5.12% / RIM: 640.93 15" INV. OUT: 643.38 (CI-130A) \
/ 58.70 LF OF 15" RCP @ 4.51% I / / 15' SIDE (TYP) 15" INV. OUT: 636.60 (CI-156)
/ 47.40 LF OF 15" RCP @ 1.50% 32.00 LF OF 15" RCP @ 1.00% \ FES-203
53.38 LF OF 24" RCP @ 0.60% RIM: 6 / 18" INV, IN: 648.12 (DI-202)
53 15" INV. OUT: 637.18 (CI-148A) \ / / / CI-156 / RIM: 649.65
0.57AC DI-153D CI-148 / RIM:640.39
24,667 sf RIM: 627.80 RIM: 637.39 I / 15" INV. IN: 635.88 (CI-155A) 70
24" INV. OUT: 623.78 (DCI-153E) 15" INV. IN: 633.04 (CI-148A) / / 15" INV. OUT: 635.88 (CI-155) \ LORETTAA. BRIDENHAGEN
15" INV. OUT: 633.04 (CI-149) -1 ` / 24.52 LF OF 15" RCP @ 0.50% CI-130 \ PID: 06042121 I
29.37 LF OF 24" CLASS IV RCP 0.50% ° < - - CI-159D RIM: 644.04 DB: 3696 PG. 700
_ @ 198.15LFOF15"RCP@4.66/0 Q �
J RIM: 635.84 83 79.90 LF OF 15" RCP @ 0.50% 15" INV. IN: 638.74 (CI-131)
24.53 LF OF 18" RCP @ 4.00% ~ 15" INV. IN: 631.30 (CI-157C) 15" INV. IN: 638.74 (CI-130A)
15" INV. OUT: 631.30 (DCI-159) 0.46 AC CI-1567 15" INV. OUT: 638.74 (DCI-126A) FES-203 RIP -RAP APRON
CI-150 CI-149 \ DI-195 20,000 sf RIM: 641.47 i \ WIDTH: 11.25' (MIN.)
/ RIM: 633.46 RIM: 633.49 \ RIM: 637.80 15" INV. OUT: 635.48 (CI-155B) 113.31 LF OF 15" RCP @ 3.50% \ LENGTH: 10' (MIN.)
18" INV. IN: 627.23 (CI-149) 11 15" INV. IN: 628.46 (CI-148) 15" INV. OUT: 633.56 (CI-157C) THICKNESS: 10" (MIN.)
28.07 LF OF 15" CLASS IV RCP @ 2.00%
18" INV. OUT: 627.23 (CI-151A) 15" INV. IN: 628.46 (CI-149A) / -- i \ RIP -RAP CLASS (NCDOT): B / DCI-151 18" INV. OUT: 628.21 (CI-150) \ \ ®� /
i
RIM: 629.76 I 61.11 LF OF 15" RCP @ 0.86% J \ CI-157 24.50 LF OF 15" RCP @ 0.50% 71 \X
/ 18" INV. IN: 623.82 (CI-151A) I 81 RIM: 642.38 DI-126B
24" INV. IN: 623.31 (DCI-153E) CI-149A \ 15" INV. IN: 635.57 (CI-157B) , RIM: 641.80
24" INV. OUT: 623.32 (DCI-152) RIM: 633.90 0.56 AC \ 15" INV. OUT: 635.57 (FES-158) 15" INV. OUT: 635.30 (DCI-126A)
15" INV. OUT: 628.99 (CI-149) 24,343 sf
47.31 LF OF ° \ \ CI-157C / E / 26.30 LF OF 15" RCP @ 2.00%
18" RCP @ 3.22/o CI-159A RIM: 637.38 E� PN DCI-126A
RIM- "INV.
PP RIM: 639.78 \ \
15" INV. OUT: 629.90 (CI-159AA) 15" INV. IN: 633.00 (DI-195) 15" INV. IN: 634.77 (CI-130) \
15" INV. OUT: 633.00 (CI-159D) \ I
32.98 LF OF 15" RCP @ 0.50% / 50°IO 15" INV. IN: 634.77 (DI-126B)
\ CI-155B \ 24" INV. OUT. 634.02 (CI-126) \
CI-159AA 15' RCP @ RIM: 641.61 CI-155
RIM: 634.70 / a �F OF / 15" INV. IN: 635.36 (CI-156A) RIMI 640.3V. 9635.76 (CI-156) 32.31 LF OF 24" RCP @ 1.00% \
\ / 15" INV. IN: 629.73 (CI-159A) g2 15" INV. IN: 635.36 (CI-155) \ 15" INV. OUT: 5.76 ( I-15 5B CI-126 \\
\ 15" INV. OUT: 629.74 (DCI-159B) 18" INV. OUT: 635.11 (FES-156B) \ RIM: 639.55
54.74 LF OF 15" RCP @ 0.50% / ° \ ES- 6B 24" INV. IN: 633.70 (DCI-126A)
\ \ RCP @3p0 24 \ 18" INV. IN: 634.87 (CI-155B) \ \ 24" INV. OUT: 633.70 (CI-127)
56 y6 LF OF 15/ \ 0.72 AC \ 37.68 LF OF 24" RCP @ 0.50% 159.99 LF OF 24" CLASS IV RCP @ 2.31 % / \ J \ NOTES:
24.57 LF OF 47.21 LF OF 18 RCP @ 0.50%
\ - � ° + + \ \ CI-127 \J\ 1. SEE SHEETS C002 - C003 AND C420 - C421 FOR ADDITIONAL NOTES AND DETAILS.
24" RCP @ 2.00% 86.07 LF OF 15" RCP @ 0.50% + RIM: 634.46
\ 2. SEE SHEET C421 FOR STORM SEWER GRADES AND INVERT ELEVATIONS.
\+ �
oP FES-158 + + + / p 24" INV. IN: 630.00 (CI-126) 3. SEE GRADING PLANS CHAPTER 4 FOR SITE GRADING INFORMATION.
65.31 LF OF 18" RCP @ 2.90% 50.42 LF OF 15" RCP @ 3.99% \ 15" INV. IN: 635.14 (CI-157) + + + + + + 24" INV. OUT: 630.00 (FES-132) 73 \\ \ 4. CATCH BASIN RIM ELEVATIONS ARE GIVEN TO THE EDGE OF ASPHALT, YARD INLETS AT
DCI-152 CI-151A DCI-159 \ + + / \ 0.48 C \ FINISHED GRADE.
RIM: 630.47 RIM: 635.24 5. RIM ELEVATIONS GIVEN ON THESE PLANS ARE APPROXIMATE AND ARE FOR INFORMATIONAL
RIM: 629.76 15" INV. IN: 629.29 (DCI-159B) + + + + + + 2 7 sf PURPOSES ONLY. ACTUAL RIM ELEVATIONS SHALL BE DETERMINED BY CONTRACTOR AND
18" INV. IN: 625.34 (CI-150) 25 / m0 \• � � ADJUSTED TO MATCH FIELD CONDITIONS.
30" INV. O T:622. (DCII-15 18" INV. OUT: 625.34 (DCI-151) \ \ 0.76AC �\ + ++ + + \
30" INV. OUT: 622.32 (CI-153) 15" INV. IN: 629.29 (CI-159D)
DCI-159B 18" INV. OUT: 629.04 (CI-160) 33,052 sf \ + + + / 9 6. APPROVAL OF THIS PLAN IS NOT AN AUTHORIZATION TO GRADE ADJACENT PROPERTIES
+ i/ 7. IN ORDER TO ENSURE PROPER DRAINAGE, KEEP A MINIMUM OF 0.50% SLOPE ON THE CURB.
RIM: 635.12 33.88 LF OF \ 8" P 2 0 Oo CI-157B + + + \ 8. CURB AND GUTTER SHOWN ON PLANS MAY BE ADJUSTED BASED UPON FIELD STAKING BY
15" INV. IN: 629.46 (CI-159AA) 15" RCP @ 0.50% RIM: 640.26 \ \ + + + m INSPECTOR / ENGINEER. ASSOCIATED STORM DRAINAGE MAY ALSO REQUIRE MODIFICATION
15" INV. OUT: 629.46 (DCI-159) \ 15" INV. OUT: 635.89 (CI-157) 24" FES-132 BASED UPON FIELD CONDITIONS.
0 + + INV. IN: 629.81 (CI-127)
CI-160 + + + 9. THE PURPOSE OF THE STORM DRAINAGE EASEMENT IS TO PROVIDE STORM WATER
RIM:635.24
39,542 sf + + + - CONVEYANCE AND ANY STRUCTURES AND/OR OBSTRUCTION TO STORM WATER FLOW IS
\ \ � "
18" INV. IN: 628.55 (DCI-159) + . PROHIBITED.
24" INV. OUT: 628.05 (FES-161) 10. ALL DESIGN AND CONSTRUCTION METHODS SHALL BE DONE IN ACCORDANCE WITH UNION
COUNTY AND NCDOT STANDARDS AND SPECIFICATIONS.
SEE SHEET C404 FOR CONTINUATION 11. ALL YARD INLETS SHALL BE DROP INLET TYPE -SEE DETAILS.
NOT A CERTIFIED DOCUMENT AS TO THE
ORIGINAL BUT ONLY TO THE REVISIONS.
THIS DOCUMENT WAS ORIGINALLY ISSUED
AND SEALED BY KRISTOPHER W. ROWE, P.E.
LICENSE #32666 ON 07/02/19 FOR PLANS
DATED 06/28/2019. THIS DOCUMENT IS ONLY
CERTIFIED AS TO THE REVISIONS INDICATED
BY REVISION CLOUD UNDER "LOW DENSITY
RTAP".
DALE C. STEWART 07/02/2021
KEY MAP
f
SEAL
CA
=*°o C-015 8'*_
° o
i
<0�%fit$ �%\ ``®
III
988
Y":
07/02/2021
PROJECT
TWIN LAKES
TOWN OF INDIAN TRAIL,
UNION COUNTY,
NORTH CAROLINA
TWIN LAKES, LLC
231 Post Office Dr. - Suite B-8
Indian Trail, NC 28079
LANDDESIGN PROJ.#
1017398
REVISION / ISSUANCE
NO.
DESCRIPTION
DATE
1
INITIAL SUBMITTAL
8/29/18
LAND DEVELOPMENT
2
12/21/18
SUBMITTAL
LAND DEVELOPMENT
3
02/04/19
SUBMITTAL
LAND DEVELOPMENT
4
02/21/19
SUBMITTAL
LAND DEVELOPMENT
5
05/07/19
SUBMITTAL
LAND DEVELOPMENT
6
06/04/19
SUBMITTAL
LAND DEVELOPMENT
7
06/28/19
SUBMITTAL
8
MIXED DENSITY RTAP
12/14/20
LOW DENSITY RTAP
07/02/21
DESIGNED BY: SMS
DRAWN BY: SMS
CHECKED BY: KWR
SCALE NORTH
VERT: N.T.S.
HORZ: 1 "=60'
0 30' 60' 120'
SHEET TITLE
DETAILED STORM DRAINAGE
PLAN
7/12/2021 3:01 PM MEGAN SCHULTZ NA 2017\1017398\CAD\CONSTRUCTION DOCUMENTS\17398 PLN STORM.DWG ORIGINAL SHEET SIZE: 24"X
C402

LandDesign.
223 NORTH GRAHAM STREET
CHARLOTTE, NC 28202
704.333.0325
WWW.LANDDESIGN.COM
NC ENG. FIRM LICENSE # C-0658
SEE SHEET C401 FOR CONTINUATION
----- / .\.\ - FFE:
- - - - - \ CI-187
+ + FES-186 RIP -RAP APRON RIM615 96
WIDTH: 15' (MIN.) 15" INV. OUT: 612.51 (CI-188) CI-188 "
/ + + + + + + + RIM:615.97 < / 36,441 sf
\ / " + + + + LENGTH: 13' (MIN.) / 15" INV. IN: 612.39 (CI-187) / V I
. - . + + + + - THICKNESS: 10" (MIN.) / FES-165 RIP -RAP APRON
• + + + + + + . • \ RIP -RAP CLASS (NCDOT): B 15" INV. OUT: 612.37 (FES-189) / WIDTH: 11.25' (MIN.)
/• - LENGTH: 10' (MIN.)
+ + \ + + + f _ \ \ / V/ / / 76.21 LF OF 15" CLASS IV RCP @ 0.50% / THICKNESS: 10" (MIN.)
+ - - - -�- - + + + + +
+ + _ + + + + \ \ 39 / �\ / RIP -RAP CLASS (NCDOT): B I
+ + + + 50' UPLAND ZONE /
+ . . . . + + BUFFER V
+ - - + + ++ / 0.71 AC
+ _ + + + + \ 7 31,016sf
+\+ ` + + + + 20' MANAGED USE 15' SIDE (TYP) \ \
- - + + \ + + + + - - - - \ BUFFER 24.52 LF OF 15" CLASS IV RCP @ 0.50%
+ - - + + + + + + - - - - 30' STREAMSI DE + + + + + BUFFER \ J J FES-165 rn
O
+ + + + / / 36 \ V / 15" INV. IN: 615.86 (CI 164) 0
+ + + ` + + + ` ` / � V \ D
+ + + - + + + + - - - - + + + + + . . . -`- . . \ U 0.70AC 31.55 LF OF 15" RCP @ 0.50%
n
+ \rn
+ + + + + + + / - - 30,505 sf
�. + ++ ++++ . . \ FFE:623.1 32
+ + ' 90.27 LF OF 15" CLASS IV RCP @ 0.50% 'l
./ 0.88 AC
`•//-`-`• + + `_`-`-`_`-`-`_`-`-`_` + + % �-`•`•`- FES-189RIP-RAP APRON + + + + +
38,484 sf
+ + + + + + + WIDTH: 11.25' (MIN.) + + + + + rn
+ + + + + + + + . . . \ + + + +
10'(MIN.) FFE:621.4
• / • / - - LENGTH: 10' MIN.
+ + + + + + + + + + +
- • • • • THICKNESS: 10" (MIN.)
- + + + + + + + + \ 38 / RIP -RAP CLASS (NCDOT): B + + + RIM: 620.35
+ + + + + + t + 0.97 AC \ + + 15" INV. IN: 616.02 (CI-162)
+�� + + + + + + \ 42,378 sf / + + 15" INV. OUT: 616.02 (FES-165)
. . . . . . . . + + + + + + / + . / FFE: 618.8 DCI-177 + + +
` - + + + + + RIM:611.76 + + + 9 i
+++ + ++++ • - FES178RIP-RAP APRON / 15" INV. OUT: 608.38(FES-178) +++ +++
/ \ • - • . - . + + WIDTH: 11.25' (MIN.) + +
+++ ++ LENGTH:10'(MIN.) // FFE:619.4 +�+ ++
I - + + THICKNESS: 10" (MIN.) +
. - + + + + RIP -RAP CLASS (NCDOT): B + -r- /
•+t+ ++ \ t+ t
1.16AC + ++ /
/ - - +++ +++ . . . . . . / / / 50,468sf + + + + + + + + + +
_ + + + + l% FES-178 + + + + +
++ ++++ ++ + + + 15" INV. IN: 607.92 (DCI-177) +++ +++ 31 /
+ + + + + + + 1.40 AC
+ + + + + +
61,145 sf +++ EXIST. LAKE ++++ ++ +++ FFE: 618.0
+ + + + + + + +
t + t + + t + + SIDE (TYP)
+t+ t t+t+ ++++ ++
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- - + + + + + + + +
\ + + + + + FES-114 RI P-RAP APRON+I+ + +
\ - - - - - - - - + + WIDTH: 11.25' (MIN.) + + + +�
- - - - - - - + LENGTH: 10' (MIN.) ++ . . FES-114 +
THICKNESS: 10" (MIN.) -
\ \ \ \\ \ - '/ ' _ ' . _ ' _ ' - - 15" INV. IN: 619.38 (DCI-113) EXIST. LAKE
.RIP -RAP CLASS (NCDOT): B + + +
1 - -- - - / �D
0.67 AC / 0.69 AC + + +
\ \ 29,082 sf \ 0.53 AC I 30,136 sf + + +
\ \ \ \ FFE: 623.E \ 23,228 sf.
FFE: 622.7
\ I 60.11 LF OF 15" RCP @ 0.50% + + +
\ \\ \ FFE:623.7 + + + + +
DCI-113 + + + + + +
\ \ \ \ \ 1 RIM:628.45
\ ` 15" INV. OUT: 619.68 (FES-114) ® + +/+ t + + + +
\ V 0.63 AC + + + + +
\ \ \ 27,448 sf 30' STREAMSIDE BUFFER + + + + + + + + + + +
\ / + + + + + + + + +
20' MANAGED USE + + ++++ + + + + + + + + + + + +++0.68 AC +
\ \ \ P BUFFER
\ � 29,751 sf � + + + I
PROJECT \ \ � � © + + 15' SIDE (TYP)
BOUNDARY (TYP) \ \ FFE: 636.1 + + FES-112
\ \ \ \ 33,708sf ++++ ++++++++ 124" 1 NV. I N: 622.15 (C 1-108)0.77 AC
I O I
\ \ \ \ I 62.62 LF OF 24" RCP @ 0.45% 0.62 AC I
\ \ \ FFE: 644.7 27,153 sf
FFE: 626.7 Q�
7 V I I FFE:623.3
V 0.62 AC
\ 1.06 AC 27,108 sf FES-112 RIP -RAP APRON
\ \ 46,232 sf CI-108 FFE: 627.7
\ ENGTH: 13'(MIN.)M
EXIST. EOP (TYP) \ � � � A RIM: 629.44
\ CI-110 15" INV. IN: 623.18 (CI-111)
\ \ \ \ 15" INV. IN: 623.18 (CI-107) I I THICKNESS: SS (MIN.)
RIM: 629.08 RIP -RAP CLASS (NCDOT): B
15" INV. IN: 624.56 (CI-109) 24" INV. OUT: 622.43 (FES-112)
15" INV. OUT: 624.56 (CI-111) CI-111 I
RIM:630.82
\ NOTES: 24.58 LF OF 15" RCP @ 0.60% 15" INV. IN: 623.94 (CI-110)� �
1. SEE SHEETS C002 - C003 AND C420 - C421 FOR ADDITIONAL NOTES AND DETAILS. \ \ \ 15" INV. OUT: 623.94 (CI-108)
2. SEE SHEET C421 FOR STORM SEWER GRADES AND INVERT ELEVATIONS. \ \
3. SEE GRADING PLANS CHAPTER 4 FOR SITE GRADING INFORMATION.
@ 4. CATCH BASIN RIM ELEVATIONS ARE GIVEN TO THE EDGE OF ASPHALT, YARD INLETS AT w
FINISHED GRADE. A 7 33 �F OF Q
5. RIM ELEVATIONS GIVEN ON THESE PLANS ARE APPROXIMATE AND ARE FOR INFORMATIONAL \ 12 /
PURPOSES ONLY. ACTUAL RIM ELEVATIONS SHALL BE DETERMINED BY CONTRACTOR AND \ \ \ \ ` \ _ 103.17 LF OF 15" RCP @ 0.60% 79.95 LF OF 15" RCP @ 0.88%
ADJUSTED TO MATCH FIELD CONDITIONS. \ CI-107 0
6. APPROVAL OF THIS PLAN IS NOT AN AUTHORIZATION TO GRADE ADJACENT PROPERTIES \ CI-109 - RIM: 6I-108
7. IN ORDER TO ENSURE PROPER DRAINAGE, KEEP A MINIMUM OF 0.50% SLOPE ON THE CURB. RIM: 629.08
EXIST. R/W (TYP) A 15" INV IN: 623 88 (DI-107B)
8. CURB AND GUTTER SHOWN ON PLANS MAY BE ADJUSTED BASED UPON FIELD STAKING BY
INSPECTOR / ENGINEER. ASSOCIATED STORM DRAINAGE MAY ALSO REQUIRE MODIFICATION
BASED UPON FIELD CONDITIONS.
9. THE PURPOSE OF THE STORM DRAINAGE EASEMENT IS TO PROVIDE STORM WATER
CONVEYANCE AND ANY STRUCTURES AND/OR OBSTRUCTION TO STORM WATER FLOW IS
PROHIBITED.
10. ALL DESIGN AND CONSTRUCTION METHODS SHALL BE DONE IN ACCORDANCE WITH UNION
COUNTY AND NCDOT STANDARDS AND SPECIFICATIONS.
11. ALL YARD INLETS SHALL BE DROP INLET TYPE - SEE DETAILS.
\ 15 INV. OUT.624.71 (CI-110) ®�
15" INV. OUT: 623.88 (CI-108)
\ 69.31 LF OF 15" RCP @ 0.50%
BEU`AH CHURC�--
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I _ RI11,1:632.00 - -
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0
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NOT A CERTIFIED DOCUMENT AS TO THE
ORIGINAL BUT ONLY TO THE REVISIONS.
THIS DOCUMENT WAS ORIGINALLY ISSUED
AND SEALED BY KRISTOPHER W. ROWE, P.E.
LICENSE #32666 ON 07/02/19 FOR PLANS
DATED 06/28/2019. THIS DOCUMENT IS ONLY
CERTIFIED AS TO THE REVISIONS INDICATED
BY REVISION CLOUD UNDER "LOW DENSITY
RTAP".
DALE C. STEWART 07/02/2021
KEY MAP
f-
SEAL
CARO
988
07/02/2021
PROJECT
TWIN LAKES
TOWN OF INDIAN TRAIL,
UNION COUNTY,
NORTH CAROLINA
TWIN LAKES, LLC
231 Post Office Dr. - Suite B-8
Indian Trail, NC 28079
LANDDESIGN PROJ.#
1017398
REVISION / ISSUANCE
NO.
DESCRIPTION
DATE
1
INITIAL SUBMITTAL
8/29/18
LAND DEVELOPMENT
2
12/21/18
SUBMITTAL
LAND DEVELOPMENT
3
02/04/19
SUBMITTAL
LAND DEVELOPMENT
4
02/21/19
SUBMITTAL
LAND DEVELOPMENT
5
05/07/19
SUBMITTAL
LAND DEVELOPMENT
6
06/04/19
SUBMITTAL
LAND DEVELOPMENT
7
06/28/19
SUBMITTAL
8
IM EM I IVAP
®wum
LOW DENSITY RTAP
07/02/21
DESIGNED BY: SMS
DRAWN BY: SMS
CHECKED BY: KWR
SCALE NORTH
VERT: N.T.S.
HORZ: 1 "=60'
0 30' 60' 120'
SHEET TITLE
DETAILED STORM DRAINAGE
PLAN
7/12/2021 3:01 PM MEGAN SCHULTZ NA 2017\1017398\CAD\CONSTRUCTION DOCUMENTS\17398 PLN STORM.DWG ORIGINAL SHEET SIZE: 24"X:
SHEET NUMBER
C403

LandDesign.
223 NORTH GRAHAM STREET
CHARLOTTE, NC 28202
704.333.0325
WWW.LANDDESIGN.COM
NC ENG. FIRM LICENSE # C-0658
SEE SHEET C402 FOR CONTINUATION
+ + +
DCI-159B \ \, \ + + + # + / \ \ \
RIM: 635.12 33.88 LF OF J \ LCI-157B \ + + PROJECT
15" INV. IN: 629.46 (CI-159AA) 15" RCP @ 0.50% RIM: 640.26 \ + t + + FES-132 \ BOUNDARY (TYP)
I 15" INV. OUT: 629.46 (DCI-159) 15" INV. OUT: 635.89 (CI-157)
\ p \ + + + 24" INV. IN: 629.81 (CI-127) \ \
RIM: 635.24 \ 39,542 sf \ + + + + t + +
18" INV. IN: 628.55 (DCI-159) \ t ++ + +++ 22
24" INV. OUT: 628.05 (FES-161) ++++++ + ++ + 0.69AC 0.48AC \\
_ \ \ 9+ + + 30016sf \ 117.72 LF OF 15" RCP @ 1.00% /
+ + + \ CI-118A i
\� \ + + + + + + RIM:633.15 CI-1 18 o�o
15" INV. OUT: 628.34 (CI-1 18) RIM: 632.07
+ + + 15" INV. IN: 627.16 (CI-117) \ \
I + + + 15" INV. IN: 627.16 (CI-118A)
RIM:
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15" INV. OUT: 616.38 (CI-164) + � 75
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LU + + + + �+ + \ 20, 809 sf \
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pt + + + + \ \ RIM:631.06
LU \ \ + + + 15" INV. IN: 625.33 (CI-115A)
+ + + + \ p 15" INV. IN: 625.33 (CI-118)+
29 30' STREAMSIDE \ + + + + + \ 15' SDE (TYP) CI-117 m� 18" INV. OUT: 625.08 (FES-120) + +
BUFFER ++ +++ / RIM:632.07 O / +++
1.19 AC + + ol / 15" INV. OUT: 627.81 (CI-118)\ 37.15 LF OF 18" RCP @ 0.50% + t t
51,9117sf 20'MANAGED + + + + 20 nm + + +
USE BUFFER + + O p + + +
+ + + + 0.64 AC \ 14 7 FES-120 + +
FFE: 622.4 t + + + + + 27,682 sf \ a ( )
+ + + + + 18" INV. IN: 624.90 CI-119
+ + + + \ CC-122 / / 28,576
8 57 3 sf \ / + +
\ \ ++ ++ / \ 32.52 LF OF 15" RCP @ 2.00% \ �m �T ++\+
\ \ 86.03 LF OF 15" RCP @ 0.50% r + +
CC-168 \ + + + + + + + / SEE SHEETS C410-C411 FOR + + + + + + + + -
\ + + + + + + + + + 1 \ / CULVERT PLANS AND DETAILS + + + +
+ + + + + + + + t t + + + 0:� \ + +
+ + + 0.81 AC + + CI-115A
/ 1.03 AC + + + 35,102 sf CC-121 + +
44,976 sf + + 0.73 AC \ t + RIM: 630.45
15" INV. IN: 625.76 CI-115
+ + + 31,907 sf + + + ( )
+ + + + / �P� / \ + + + + 15" INV. OUT: 625.76 (CI-119) FFE: + + + + Jt�, J + + + + + +
/ ++++ �+ GO / \\ 9 ++ + ++++ + + + + + 37.30LFOF15"RCP@0.50%
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Z / t t t t t + t t t t + + + + + \ / + + +
o ++ ++ ++++ 16 +++ +
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Q + + + + + + 1.19AC + + + +
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z + + + 51,625 sf + + + + + CI-1 15
+ + + + FFE:630.2 + + + RIM:630.37
z + + + + + 0.79 AC CC-124 + + CI-116 15" INV. IN: 625.95 (CI-116)
o + + + t + 34,289 sf + +\ RIM: 630.37 + 15" INV. OUT: 625.95 (CI-115A)
+ + FFE: 619.4 30' STREAMSIDE + + 15" INV. OUT: 626.11 (CI-115)
0 ' + BUFFER + + +
LL + + / �- t + t
+ + + / 32.53 LF OF 15" RCP @ 0.50%
Mo +++ /9 �,� / 20' MANAGED + + + + /
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FFE:624.2 + + + + /
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t t t t t
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++ ++++++++ ++
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+ + + + + + + +
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+ + + + + + + + + + + FFE:628.3 /
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+ + + + + 0.92 AC / 100e
+ + + 40,203 sf
+ + + + + I
+ + + + + + + + + + + FES-106 +
+ + + FES-106 RIP -RAP APRON 36" INV. IN: 619.02 + +
+ + WIDTH: 42.2' (MIN.) H (CI-101 ) 24.51 LF OF 15" RCP @ 0.50%
I 1 O t LENGTH: 33.2' (MIN.) + + + 56.53 LF OF 36" RCP @ 0.27% CI-100 /
THICKNESS: 18" (MIN.) + t t t+ t t+
0.65 AC CI-104 RIP -RAP CLASS NCDOT : B + + + + t + + + RIM: 627.16 °
( ) 12FIN
NV. IN: 623.17 (CI-98) / 90.08 LF OF 15" RCP @ 0.50%
28,300 sf RIM: 628.78 UT: 623.17 (CI-100A) EXIST. R/W (TYP)
15" INV. IN: 624.03 (CI-103) 1 1 0.75 AC
FFE: 625.3 15" INV. OUT: 624.03 (CI-105) 91.40 LF OF 15" RCP @ 0.54% CI-99
0.95 RIM: 627.69
41,539 FFE: 628.E 15" INV. OUT: 623.75 (CI-98)
sf CI-101 s®
24.49 LF OF 15" RCP @ 0.79% RIM: 631.32 97.27 LF OF 30" CLASS IV RCP @ 0.50% EXIST. EOP (TYP)
FFE: 628.E
CI-105 I 15" INV. IN: 621.93 (CI-100A)
190.30 LF OF 15" RCP @ 0.64% RIM: 632.81 30" INV. IN: 619.67 (CI-102) ' DI-102A
I 15" INV. IN: 622.81 (CI-104) 15" INV. IN: 621.94 (CI-105) RIM: 626.00 _ -
15" INV. OUT: 622.81 (CI-101) I I 36" INV. OUT: 619.17 (FES-106) 30" INV. OUT: 621.70 (DI-102B) - - -
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150.41 LF OF 15"R'Cas
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AL
CI-100A 0' SDE
uJ RIM: 629.46-
_ 15" INV. IN: 622.68 (CI-100)-
J - 15" INV. OUT: 622.68 (CI-101) -
RIM: 628.79 24.51 LF OF 30" RCP @ 0.50%-
o I I 15" INV. IN: 624.23 (DI-107A) - - - /
®� 15" INV. OUT: 624.23 (CI-104) _ - gEULAH CHURCH ROAD _ /
_ CI-102 _ - - - - - DI-102B
72.08 LF OF 15" RCP @ 0.50% RIM: 631.32 - - RIM: 624.50
30" INV. IN: 619.79 (DI-102B) - - Y 30" INV. IN: 621.21 (DI-102A) 30" INV. OUT: 619.79 (CI-101) NOTES:
_ 30" INV. OUT: 621.21 (CI-102)
DI-107A � 282.81 LF OF 30" CLASS IV RCP @ 0.50% DI-201 1. SEE SHEETS C002 - C003 AND C420 - C421 FOR ADDITIONAL NOTES AND DETAILS.
RIM: 625.75 / 2. SEE SHEET C421 FOR STORM SEWER GRADES AND INVERT ELEVATIONS.
15" INV. OUT: 624.59 (CI-103) PID
_ RIM: 629.95 - - - CI 98 BONTERR 1J LLC 3. SEE GRADING PLANS CHAPTER 4 FOR SITE GRADING INFORMATION.
/ : 06042001J 060420
RIM: 627.16 DB: 6457 PG. 545 4. CATCH BASIN RIM ELEVATIONS ARE GIVEN TO THE EDGE OF ASPHALT, YARD INLETS AT
15" INV. IN: 623.30 (CI-99) FINISHED GRADE.
- - - - - - - 15" INV. OUT: 623.29 (CI-100) 5. RIM ELEVATIONS GIVEN ON THESE PLANS ARE APPROXIMATE AND ARE FOR INFORMATIONAL
BEL AIR ACQUISITION SUB, LLC PURPOSES ONLY. ACTUAL RIM ELEVATIONS SHALL BE DETERMINED BY CONTRACTOR AND
PID: 06042001, 06069362 PROPERTY LINE (TYP) ADJUSTED TO MATCH FIELD CONDITIONS.
EXIST. R/W (TYP) DB: 6480 PG. 48 / 6. APPROVAL OF THIS PLAN IS NOT AN AUTHORIZATION TO GRADE ADJACENT PROPERTIES
/ 7.
/ 8.
9.
10
11
IN ORDER TO ENSURE PROPER DRAINAGE, KEEP A MINIMUM OF 0.50% SLOPE ON THE CURB.
CURB AND GUTTER SHOWN ON PLANS MAY BE ADJUSTED BASED UPON FIELD STAKING BY
INSPECTOR / ENGINEER. ASSOCIATED STORM DRAINAGE MAY ALSO REQUIRE MODIFICATION
BASED UPON FIELD CONDITIONS.
THE PURPOSE OF THE STORM DRAINAGE EASEMENT IS TO PROVIDE STORM WATER
CONVEYANCE AND ANY STRUCTURES AND/OR OBSTRUCTION TO STORM WATER FLOW IS
PROHIBITED.
ALL DESIGN AND CONSTRUCTION METHODS SHALL BE DONE IN ACCORDANCE WITH UNION
COUNTY AND NCDOT STANDARDS AND SPECIFICATIONS.
ALL YARD INLETS SHALL BE DROP INLET TYPE - SEE DETAILS.
NOT A CERTIFIED DOCUMENT AS TO THE
ORIGINAL BUT ONLY TO THE REVISIONS.
THIS DOCUMENT WAS ORIGINALLY ISSUED
AND SEALED BY KRISTOPHER W. ROWE, P.E.
LICENSE #32666 ON 07/02/19 FOR PLANS
DATED 06/28/2019. THIS DOCUMENT IS ONLY
CERTIFIED AS TO THE REVISIONS INDICATED
BY REVISION CLOUD UNDER "LOW DENSITY
RTAP".
DALE C. STEWART 07/02/2021
KEY MAP
f-
SEAL
CA
�� �oy�v�:
988
���,•O�••.FNGINEER.•�.���:
s`00
07/02/2021
PROJECT
TWIN LAKES
TOWN OF INDIAN TRAIL,
UNION COUNTY,
NORTH CAROLINA
TWIN LAKES, LLC
231 Post Office Dr. - Suite B-8
Indian Trail, NC 28079
LANDDESIGN PROJ.#
1017398
REVISION / ISSUANCE
NO.
DESCRIPTION
DATE
1
INITIAL SUBMITTAL
8/29/18
LAND DEVELOPMENT
2
12/21/18
SUBMITTAL
LAND DEVELOPMENT
3
02/04/19
SUBMITTAL
LAND DEVELOPMENT
4
02/21/19
SUBMITTAL
LAND DEVELOPMENT
5
05/07/19
SUBMITTAL
LAND DEVELOPMENT
6
06/04/19
SUBMITTAL
LAND DEVELOPMENT
7
06/28/19
SUBMITTAL
8
MIXED DENSITY RTAP
12/14/20
LOW DENSITY RTAP
07/02/21
DESIGNED BY: SMS
DRAWN BY: SMS
CHECKED BY: KWR
SCALE NORTH
VERT: N.T.S.
HORZ: 1 "=60'
0 30' 60' 120'
SHEET TITLE
DETAILED STORM DRAINAGE
PLAN
SHEET NUMBER
C404
7/12/2021 3:01 PM MEGAN SCHULTZ NA 2017\1017398\CAD\CONSTRUCTION DOCUMENTS\17398 PLN STORM.DWG ORIGINAL SHEET SIZE: 24",

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DB: 6480 PG. 48EL-m
C409
LandDesign.
223 NORTH GRAHAM STREET
CHARLOTTE, NC 28202
704.333.0325
WWW.LANDDESIGN.COM
NC ENG. FIRM LICENSE # C-0658
NOT A CERTIFIED DOCUMENT AS TO THE
ORIGINAL BUT ONLY TO THE REVISIONS.
THIS DOCUMENT WAS ORIGINALLY ISSUED
AND SEALED BY KRISTOPHER W. ROWE, P.E.
LICENSE #32666 ON 07/02/19 FOR PLANS
DATED 06/28/2019. THIS DOCUMENT IS ONLY
CERTIFIED AS TO THE REVISIONS INDICATED
BY REVISION CLOUD UNDER "LOW DENSITY
RTAP".
DALE C. STEWART 07/02/2021
KEY MAP
f-
SEAL
988
07/02/2021
PROJECT
TWIN LAKES
TOWN OF INDIAN TRAIL,
UNION COUNTY,
NORTH CAROLINA
TWIN LAKES, LLC
231 Post Office Dr. - Suite B-8
Indian Trail, NC 28079
LANDDESIGN PROJ.#
1017398
REVISION / ISSUANCE
NO.
DESCRIPTION
DATE
1
INITIAL SUBMITTAL
8/29/18
LAND DEVELOPMENT
2
12/21/18
SUBMITTAL
LAND DEVELOPMENT
3
02/04/19
SUBMITTAL
LAND DEVELOPMENT
4
02/21/19
SUBMITTAL
LAND DEVELOPMENT
5
05/07/19
SUBMITTAL
LAND DEVELOPMENT
6
06/04/19
SUBMITTAL
LAND DEVELOPMENT
7
06/28/19
SUBMITTAL
8
MIXED DENSITY RTAP
12/14/20
LOW DENSITY RTAP
07/02/21
DESIGNED BY: SMS
DRAWN BY: SMS
CHECKED BY: KWR
SCALE NORTH
VERT: N.T.S.
HORZ: 1 "=100'
0 50' 100, 200'
SHEET TITLE
STORM DRAINAGE AREA
INDEX SHEET
SHEET NUMBER
C405
7/12/2021 3:01 PM MEGAN SCHULTZ NA 2017\1017398\CAD\CONSTRUCTION DOCUMENTS\17398 PLN STORM.DWG ORIGINAL SHEET SIZE: 24"X:

LandDesign.
223 NORTH GRAHAM STREET
CHARLOTTE, NC 28202
704.333.0325
WWW.LANDDESIGN.COM
NC ENG. FIRM LICENSE # C-0658
JOSEPH D. JORDAN _—
/ PID: 06066041
DB: 7168 PG. 712 _ �r
62 �
THR NORTH CAROLINA II, L.P.
r / �� — PID:06066040
40eDB: 6922 PG. 695
/ EXIST. EOP (TYP) \ / EXIST. R/W (TYP)
//
630
�xj
ALFRED C. TAYLOR DOUGLAS J. O'NEAL /
PID:06066036 PID:06066037 /
DB: 881 PG. 789
GUDRID VALDEZ / DB: 6875 PG. 358
PID:06066035 / / 1 / CHARLESJ. WRIGHT
I I
I I /
i
/
/
� PRANCES MAUREEf
PID:06066C
DB: 649 PG.
5g0 � I
KYLE JEFFERY DUNN I I
I— PID:06066030
DB: 1049 PG. 550 I
I I�
+ + + I
SEE SHEET C408 FOR CONTINUATION RIP -RAP CLASS (NCDOT): B
NOTES:
1. SEE SHEETS C002 - C003 AND C420 - C421 FOR ADDITIONAL NOTES AND DETAILS.
2. SEE SHEET C421 FOR STORM SEWER GRADES AND INVERT ELEVATIONS.
3. SEE GRADING PLANS CHAPTER 4 FOR SITE GRADING INFORMATION.
4. CATCH BASIN RIM ELEVATIONS ARE GIVEN TO THE EDGE OF ASPHALT, YARD INLETS AT
FINISHED GRADE.
5. RIM ELEVATIONS GIVEN ON THESE PLANS ARE APPROXIMATE AND ARE FOR INFORMATIONAL
PURPOSES ONLY. ACTUAL RIM ELEVATIONS SHALL BE DETERMINED BY CONTRACTOR AND
ADJUSTED TO MATCH FIELD CONDITIONS.
6. APPROVAL OF THIS PLAN IS NOT AN AUTHORIZATION TO GRADE ADJACENT PROPERTIES
7. IN ORDER TO ENSURE PROPER DRAINAGE, KEEP A MINIMUM OF 0.50% SLOPE ON THE CURB.
8. CURB AND GUTTER SHOWN ON PLANS MAY BE ADJUSTED BASED UPON FIELD STAKING BY
INSPECTOR / ENGINEER. ASSOCIATED STORM DRAINAGE MAY ALSO REQUIRE MODIFICATION
BASED UPON FIELD CONDITIONS.
9. THE PURPOSE OF THE STORM DRAINAGE EASEMENT IS TO PROVIDE STORM WATER
CONVEYANCE AND ANY STRUCTURES AND/OR OBSTRUCTION TO STORM WATER FLOW IS
PROHIBITED.
10. ALL DESIGN AND CONSTRUCTION METHODS SHALL BE DONE IN ACCORDANCE WITH UNION
COUNTY AND NCDOT STANDARDS AND SPECIFICATIONS.
11. ALL YARD INLETS SHALL BE DROP INLET TYPE - SEE DETAILS.
LEGEND:
EXISTING CONTOUR MINOR
EXISTING CONTOUR MAJOR
730
PROPOSED CONTOUR ELEVATION
— —
DRAINAGE EASEMENT
STORM SEWER
DRAINAGE BOUNDARY
®
COMBINATION INLET (CI)
®
DROP INLET (DI)
STORM MANHOLE
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NOT A CERTIFIED DOCUMENT AS TO THE
ORIGINAL BUT ONLY TO THE REVISIONS.
THIS DOCUMENT WAS ORIGINALLY ISSUED
AND SEALED BY KRISTOPHER W. ROWE, P.E.
LICENSE #32666 ON 07/02/19 FOR PLANS
DATED 06/28/2019. THIS DOCUMENT IS ONLY
CERTIFIED AS TO THE REVISIONS INDICATED
BY REVISION CLOUD UNDER "LOW DENSITY
RTAP".
DALE C. STEWART 07/02/2021
KEY MAP
SEAL
PROJECT
CARO
988
���,•O�••.FNGINEER.•�.���:
07/02/2021
TWIN LAKES
TOWN OF INDIAN TRAIL,
UNION COUNTY,
NORTH CAROLINA
TWIN LAKES, LLC
231 Post Office Dr. - Suite B-8
Indian Trail, NC 28079
LANDDESIGN PROJ.#
1017398
REVISION / ISSUANCE
NO.
DESCRIPTION
DATE
1
INITIAL SUBMITTAL
8/29/18
LAND DEVELOPMENT
2
12/21/18
SUBMITTAL
LAND DEVELOPMENT
3
02/04/19
SUBMITTAL
LAND DEVELOPMENT
4
02/21/19
SUBMITTAL
LAND DEVELOPMENT
5
05/07/19
SUBMITTAL
LAND DEVELOPMENT
6
06/04/19
SUBMITTAL
LAND DEVELOPMENT
7
06/28/19
SUBMITTAL
8
MIXED DENSITY RTAP
12/14/20
ALOW
DENSITY RTAP
07/02/21
DESIGNED BY: SMS
DRAWN BY: SMS
CHECKED BY: KWR
SCALE NORTH
VERT: N.T.S.
HORZ: 1 "=60'
0 30' 60' 120'
SHEET TITLE
7/12/2021 3:02 PM MEGAN SCHULTZ NA 2017\1017398\CAD\CONSTRUCTION DOCUMENTS\17398 PLN STORM.DWG ORIGINAL SHEET SIZE: 24" X 36"
DETAILED STORM DRAINAGE
AREA PLAN
SHEET NUMBER
C406

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SEE SHEET C409 FOR CONTINUATION
LEGEND:
EXISTING CONTOUR MINOR
EXISTING CONTOUR MAJOR
730
PROPOSED CONTOUR ELEVATION
- -
DRAINAGE EASEMENT
STORM SEWER
DRAINAGE BOUNDARY
®
COMBINATION INLET (CI)
®
DROP INLET (DI)
•
STORM MANHOLE
NOTES:
1. SEE SHEETS C002 - C003 AND C420 - C421 FOR ADDITIONAL NOTES AND DETAILS.
2. SEE SHEET C421 FOR STORM SEWER GRADES AND INVERT ELEVATIONS.
3. SEE GRADING PLANS CHAPTER 4 FOR SITE GRADING INFORMATION.
4. CATCH BASIN RIM ELEVATIONS ARE GIVEN TO THE EDGE OF ASPHALT, YARD INLETS AT
FINISHED GRADE.
5. RIM ELEVATIONS GIVEN ON THESE PLANS ARE APPROXIMATE AND ARE FOR INFORMATIONAL
PURPOSES ONLY. ACTUAL RIM ELEVATIONS SHALL BE DETERMINED BY CONTRACTOR AND
ADJUSTED TO MATCH FIELD CONDITIONS.
6. APPROVAL OF THIS PLAN IS NOT AN AUTHORIZATION TO GRADE ADJACENT PROPERTIES
7. IN ORDER TO ENSURE PROPER DRAINAGE, KEEP A MINIMUM OF 0.50% SLOPE ON THE CURB.
8. CURB AND GUTTER SHOWN ON PLANS MAY BE ADJUSTED BASED UPON FIELD STAKING BY
INSPECTOR / ENGINEER. ASSOCIATED STORM DRAINAGE MAY ALSO REQUIRE MODIFICATION
BASED UPON FIELD CONDITIONS.
9. THE PURPOSE OF THE STORM DRAINAGE EASEMENT IS TO PROVIDE STORM WATER
CONVEYANCE AND ANY STRUCTURES AND/OR OBSTRUCTION TO STORM WATER FLOW IS
PROHIBITED.
10. ALL DESIGN AND CONSTRUCTION METHODS SHALL BE DONE IN ACCORDANCE WITH UNION
COUNTY AND NCDOT STANDARDS AND SPECIFICATIONS.
11. ALL YARD INLETS SHALL BE DROP INLET TYPE - SEE DETAILS.
LandDesign.
223 NORTH GRAHAM STREET
CHARLOTTE, NC 28202
704.333.0325
WWW.LANDDESIGN.COM
NC ENG. FIRM LICENSE # C-0658
NOT A CERTIFIED DOCUMENT AS TO THE
ORIGINAL BUT ONLY TO THE REVISIONS.
THIS DOCUMENT WAS ORIGINALLY ISSUED
AND SEALED BY KRISTOPHER W. ROWE, P.E.
LICENSE #32666 ON 07/02/19 FOR PLANS
DATED 06/28/2019. THIS DOCUMENT IS ONLY
CERTIFIED AS TO THE REVISIONS INDICATED
BY REVISION CLOUD UNDER "LOW DENSITY
RTAP".
DALE C. STEWART 07/02/2021
KEY MAP
SEAL
PROJECT
CARO
988
',,,0�' .ENGINEER A��:
07/02/2021
LAKESTWIN
TOWN OF INDIAN TRAIL,
UNION COUNTY,
NORTH CAROLINA
TWIN LAKES, LLC
231 Post Office Dr. - Suite B-8
Indian Trail, NC 28079
LANDDESIGN PROJ.#
1017398
REVISION / ISSUANCE
NO.
DESCRIPTION
DATE
1
INITIAL SUBMITTAL
8/29/18
LAND DEVELOPMENT
2
12/21/18
SUBMITTAL
LAND DEVELOPMENT
3
02/04/19
SUBMITTAL
LAND DEVELOPMENT
4
02/21/19
SUBMITTAL
LAND DEVELOPMENT
5
05/07/19
SUBMITTAL
LAND DEVELOPMENT
6
06/04/19
SUBMITTAL
LAND DEVELOPMENT
7
06/28/19
SUBMITTAL
8
MIXED DENSITY RTAP
12/14/20
LOW DENSITY RTAP
07/02/21
DESIGNED BY: SMS
DRAWN BY: SMS
CHECKED BY: KWR
SCALE NORTH
VERT: N.T.S.
HORZ: 1 "=60'
0 30' 60' 120'
SHEET TITLE
DETAILED STORM DRAINAGE
AREA PLAN
7/12/2021 3:02 PM MEGAN SCHULTZ NA 2017\1017398\CAD\CONSTRUCTION DOCUMENTS\17398 PLN STORM.DWG ORIGINAL SHEET SIZE: 24" X 36"
SHEET NUMBER
C407

LEGEND:
EXISTING CONTOUR MINOR
EXISTING CONTOUR MAJOR
730 PROPOSED CONTOUR ELEVATION
DRAINAGE EASEMENT
STORM SEWER
DRAINAGE BOUNDARY
® COMBINATION INLET (CI) SEE SHEET C406 FOR CONTINUATION
® DROP INLET (DI) CI-16�
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1. SEE SHEETS C002 - C003 AND C420 - C421 FOR ADDITIONAL NOTES AND DETAILS. LANE
2. SEE SHEET C421 FOR STORM SEWER GRADES AND INVERT ELEVATIONS.
3. SEE GRADING PLANS CHAPTER 4 FOR SITE GRADING INFORMATION. / ���� mow
4. CATCH BASIN RIM ELEVATIONS ARE GIVEN TO THE EDGE OF ASPHALT, YARD INLETS AT DI-107B �\
FINISHED GRADE.
5. RIM ELEVATIONS GIVEN ON THESE PLANS ARE APPROXIMATE AND ARE FOR INFORMATIONAL
PURPOSES ONLY. ACTUAL RIM ELEVATIONS SHALL BE DETERMINED BY CONTRACTOR AND 629 : \ _ - -
ADJUSTED TO MATCH FIELD CONDITIONS.-
6. APPROVAL OF THIS PLAN IS NOT AN AUTHORIZATION TO GRADE ADJACENT PROPERTIES
7. IN ORDER TO ENSURE PROPER DRAINAGE, KEEP A MINIMUM OF 0.50% SLOPE ON THE CURB.
8. CURB AND GUTTER SHOWN ON PLANS MAY BE ADJUSTED BASED UPON FIELD STAKING BY
INSPECTOR / ENGINEER. ASSOCIATED STORM DRAINAGE MAY ALSO REQUIRE MODIFICATION
BASED UPON FIELD CONDITIONS.
9. THE PURPOSE OF THE STORM DRAINAGE EASEMENT IS TO PROVIDE STORM WATER
CONVEYANCE AND ANY STRUCTURES AND/OR OBSTRUCTION TO STORM WATER FLOW IS
PROHIBITED. SEE SHEET C1027 FOR
10. ALL DESIGN AND CONSTRUCTION METHODS SHALL BE DONE IN ACCORDANCE WITH UNION OFF -SITE STORM
COUNTY AND NCDOT STANDARDS AND SPECIFICATIONS. DRAINAGE AREAS
11. ALL YARD INLETS SHALL BE DROP INLET TYPE - SEE DETAILS.
LandDesign.
223 NORTH GRAHAM STREET
CHARLOTTE, NC 28202
704.333.0325
WWW.LANDDESIGN.COM
NC ENG. FIRM LICENSE # C-0658
NOT A CERTIFIED DOCUMENT AS TO THE
ORIGINAL BUT ONLY TO THE REVISIONS.
THIS DOCUMENT WAS ORIGINALLY ISSUED
AND SEALED BY KRISTOPHER W. ROWE, P.E.
LICENSE #32666 ON 07/02/19 FOR PLANS
DATED 06/28/2019. THIS DOCUMENT IS ONLY
CERTIFIED AS TO THE REVISIONS INDICATED
BY REVISION CLOUD UNDER "LOW DENSITY
RTAP".
DALE C. STEWART 07/02/2021
KEY MAP
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SEAL
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'tee! :"�O�;b
CARO
988
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07/02/2021
PROJECT
TWIN LAKES
TOWN OF INDIAN TRAIL,
UNION COUNTY,
NORTH CAROLINA
TWIN LAKES, LLC
231 Post Office Dr. - Suite B-8
Indian Trail, NC 28079
LANDDESIGN PROJ.#
1017398
REVISION / ISSUANCE
NO.
DESCRIPTION
DATE
1
INITIAL SUBMITTAL
8/29/18
LAND DEVELOPMENT
2
12/21/18
SUBMITTAL
LAND DEVELOPMENT
3
02/04/19
SUBMITTAL
LAND DEVELOPMENT
4
02/21/19
SUBMITTAL
LAND DEVELOPMENT
5
05/07/19
SUBMITTAL
LAND DEVELOPMENT
6
06/04/19
SUBMITTAL
LAND DEVELOPMENT
7
06/28/19
SUBMITTAL
8
MIXED DENSITY RTAP
12/14/20
LOW DENSITY RTAP
07/02/21
DESIGNED BY: SMS
DRAWN BY: SMS
CHECKED BY: KWR
SCALE NORTH
VERT: N.T.S.
HORZ: 1 "=60'
0 30' 60' 120'
SHEET TITLE
DETAILED STORM DRAINAGE
AREA PLAN
7/12/2021 3:02 PM MEGAN SCHULTZ NA 2017\1017398\CAD\CONSTRUCTION DOCUMENTS\17398 PLN STORM.DWG ORIGINAL SHEET SIZE: 24" X
SHEET NUMBER
C408

SEE SHEET C407 FOR CONTINUATION
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PID:06042001J
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NOTES:
1. SEE SHEETS C002 - C003 AND C420 - C421 FOR ADDITIONAL NOTES AND DETAILS.
2. SEE SHEET C421 FOR STORM SEWER GRADES AND INVERT ELEVATIONS.
3. SEE GRADING PLANS CHAPTER 4 FOR SITE GRADING INFORMATION.
4. CATCH BASIN RIM ELEVATIONS ARE GIVEN TO THE EDGE OF ASPHALT, YARD INLETS AT
FINISHED GRADE.
5. RIM ELEVATIONS GIVEN ON THESE PLANS ARE APPROXIMATE AND ARE FOR INFORMATIONAL
PURPOSES ONLY. ACTUAL RIM ELEVATIONS SHALL BE DETERMINED BY CONTRACTOR AND
ADJUSTED TO MATCH FIELD CONDITIONS.
6. APPROVAL OF THIS PLAN IS NOT AN AUTHORIZATION TO GRADE ADJACENT PROPERTIES
7. IN ORDER TO ENSURE PROPER DRAINAGE, KEEP A MINIMUM OF 0.50% SLOPE ON THE CURB.
8. CURB AND GUTTER SHOWN ON PLANS MAY BE ADJUSTED BASED UPON FIELD STAKING BY
INSPECTOR / ENGINEER. ASSOCIATED STORM DRAINAGE MAY ALSO REQUIRE MODIFICATION
BASED UPON FIELD CONDITIONS.
9. THE PURPOSE OF THE STORM DRAINAGE EASEMENT IS TO PROVIDE STORM WATER
CONVEYANCE AND ANY STRUCTURES AND/OR OBSTRUCTION TO STORM WATER FLOW IS
PROHIBITED.
10. ALL DESIGN AND CONSTRUCTION METHODS SHALL BE DONE IN ACCORDANCE WITH UNION
COUNTY AND NCDOT STANDARDS AND SPECIFICATIONS.
11. ALL YARD INLETS SHALL BE DROP INLET TYPE - SEE DETAILS.
LEGEND:
EXISTING CONTOUR MINOR
EXISTING CONTOUR MAJOR
730 PROPOSED CONTOUR ELEVATION
DRAINAGE EASEMENT
STORM SEWER
DRAINAGE BOUNDARY
® COMBINATION INLET (CI)
® DROP INLET (DI)
STORM MANHOLE
LandDesign.
223 NORTH GRAHAM STREET
CHARLOTTE, NC 28202
704.333.0325
WWW.LANDDESIGN.COM
NC ENG. FIRM LICENSE # C-0658
NOT A CERTIFIED DOCUMENT AS TO THE
ORIGINAL BUT ONLY TO THE REVISIONS.
THIS DOCUMENT WAS ORIGINALLY ISSUED
AND SEALED BY KRISTOPHER W. ROWE, P.E.
LICENSE #32666 ON 07/02/19 FOR PLANS
DATED 06/28/2019. THIS DOCUMENT IS ONLY
CERTIFIED AS TO THE REVISIONS INDICATED
BY REVISION CLOUD UNDER "LOW DENSITY
RTAP".
DALE C. STEWART 07/02/2021
KEY MAP
SEAL
PROJECT
\\O\I ICE I /,///�
=ir•o C-015 8'*=
°•x off.
�p Nag;
988
'F/VGINEER
C.
07/02/2021
TWIN LAKES
TOWN OF INDIAN TRAIL,
UNION COUNTY,
NORTH CAROLINA
TWIN LAKES, LLC
231 Post Office Dr. - Suite B-8
Indian Trail, NC 28079
LANDDESIGN PROJ.#
1017398
REVISION / ISSUANCE
NO.
DESCRIPTION
DATE
1
INITIAL SUBMITTAL
8/29/18
LAND DEVELOPMENT
2
12/21/18
SUBMITTAL
LAND DEVELOPMENT
3
02/04/19
SUBMITTAL
LAND DEVELOPMENT
4
02/21/19
SUBMITTAL
LAND DEVELOPMENT
5
05/07/19
SUBMITTAL
LAND DEVELOPMENT
6
06/04/19
SUBMITTAL
LAND DEVELOPMENT
7
06/28/19
SUBMITTAL
8
MIXED DENSITY RTAP
12/14/20
LOW DENSITY RTAP
07/02/21
DESIGNED BY: SMS
DRAWN BY: SMS
CHECKED BY: KWR
SCALE NORTH
VERT: N.T.S.
HORZ: 1 "=60'
0 30' 60' 120'
SHEET TITLE
DETAILED STORM DRAINAGE
AREA PLAN
7/12/2021 3:02 PM MEGAN SCHULTZ NA 2017\1017398\CAD\CONSTRUCTION DOCUMENTS\17398 PLN STORM.DWG ORIGINAL SHEET SIZE: 24" X 36'
SHEET NUMBER
C409

_ _____
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/// J / l i �V �,.-=� �%?>:Y\\'AVAI\ I I I 1 v v v = ---- f
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\ 1� \ v v = - ; - i / / / / l 1 1 I� 1 11 \ v l
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I A'/ \ --- v / / / / / �� I / v 1 / 1 \ I
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I / ♦♦ // i � ',, Irk\ \+\ <", z_ L--�" \\\ \'` \ \-- --"� / \ \\ \__-_------ ---- ' /l /I/ // ,'/ ,, � I �/ / l l l '\ i / 1 1 1 ' 1 1 \ _ \ \\ \`� \ 1 \ \ \ 1 //, / /
1\ \ ♦ I /j //,��i i�/__-�--- - , \\\Q,,\\ - / \\\ � \�\\\\\\�\ ------- -\--� _ \\ \ // ------ `----_- -. '// ///// , / / '- i / --
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/ / / / / I A v A 11 \1 A V v v / / /
SOIL TYPES
BaB BADIN CHANNERY SILT LOAM, 2 TO 8 PERCENT SLOPES (GROUP C)
BdB2 BADIN CHANNERY SILTY CLAY LOAM, 2 TO 8 PERCENT SLOPES (GROUP C)
GfB2 GEORGEVILLE SILTY CLAY LOAD, 2 TO 8 PERCENT SLOPES (GROUP B)
GsB GOLDSTON-BADIN COMPLEX, 2 TO 8 PERCENT SLOPES (GROUP D)
CULVERT DRAINAGE AREA EVALUATION
COMBINED DRAINAGE AREA: ±54.5 ACRES
DRAINAGE AREAS BREAKDOWN
ON -SITE DETAINED DRAINAGE AREA: ±4.8 ACRES
• HYDRAULIC SOILS GROUP: I'D" SOILS
• SCS CURVE NUMBER: 86
•• PROPOSED OPEN SPACE - D (±3.3 AC) 80
•• PROPOSED IMPERVIOUS (±1.5 AC) 98
OFF -SITE DETAINED DRAINAGE AREA:
• HYDRAULIC SOILS GROUP:
• SCS CURVE NUMBER:
•• EXISTING ROADWAY (±0.6 AC)
•• 1-ACRE LOTS - C (±31.1 AC)
•• 1-ACRE LOTS - D (±10.3 AC)
SENIOR LIVING DRAINAGE AREA:
• HYDRAULIC SOILS GROUP:
• SCS CURVE NUMBER:
•• PROPOSED OPEN SPACE - C (±0.6 AC)
•• PROPOSED OPEN SPACE - D (±0.9 AC)
•• PROPOSED IMPERVIOUS (±6.2 AC)
TIME OF CONCENTRATION:
FLOWS
• 2-YEAR:
• 10-YEAR:
• 25-YEAR:
• 50-YEAR:
• 100-YEAR:
±42.0 ACRES
"C" AND I'D" SOILS
80
98
79
84
±7.7 ACRES
"C" AND I'D" SOILS
94
74
80
98
0.0833 HR (5.0 MIN)
166.33 CFS
284.57 CFS
359.72 CFS
419.98 CFS
487.71 CFS
1) COBBLECREEK DRIVE
5)
HERBERT W. GODWIN
9)
DOUGLAS J. O'NEAL
13)
JOSEPH D. JORDAN
17)
JAMES THOMAS AND ANITA H.
21)
JASON R. BEADNELL
25)
LORETTA A. BRIDENHAGEN
29) BONTERRA BUILDERS, LLC
HOMEOWNERS ASSOCIATION
DB. 6066 PG. 751
DB. 6875 PG. 358
DB. 7168 PG. 712
WEBB
DB. 6541 PG. 590
DB. 3696 PG. 700
DB. 6457 PG. 545
DB. 947 PG. 550
PID: 06066033
PID: 06066037
PID: 06066041
DB. N/A PG. N/A
PID: 06042109
PID: 06042121
PID: 06042001J
PID: 06066076
ZONING: R-40 (WEDDINGTON)
ZONING: R-40 (WEDDINGTON)
ZONING: R-40 (WEDDINGTON)
PID: 06066013
ZONING: R-40 (WEDDINGTON)
ZONING: R-40 (WEDDINGTON)
ZONING: R-40 (UNION)
ZONING: R-40 (WEDDINGTON)
ZONING: R-60 (WEDDINGTON)
6)
RONALD K. JONES
10)
DEREK E. AND TAMARA C.
14)
SALLY LAFFITTE
22)
RYAN W. BIHLMEIER
26)
CHRISTOPHER S. WEST
30) BEL AIR ACQUISITION SUB, LLC
2) KYLE JEFFERY DUNN
DB. 6368 PG. 799
BROSTERHOUS
DB. 6882 PG. 516
18)
DIANE M. CHICHESTER
DB. 7184, PG. 521
DB. 1513 PG. 111
DB. 6480 PG. 48
DB. 1049 PG. 550
PID: 06066034
DB. 4947 PG. 390
PID: 06066042
DB. 6223 PG. 481
PID: 06042124
PID: 06042120
PID: 06042001, 06069362
PID: 06066030
PID: 06066038
PID: 06066007
ZONING: R-40 (UNION)
LEGEND .
ZONING: R-40 (WEDDINGTON)
ZONING: R-40 (WEDDINGTON)
ZONING: R-40 (WEDDINGTON)
ZONING: R-40 (WEDDINGTON)
ZONING: R-40 (WEDDINGTON)
ZONING: R-40 (WEDDINGTON)
ZONING: R-60 (WEDDINGTON)
EASEMENT - — — — — — — — -
7)
GUDRID VALDEZ
15)
GLENN ALAN KOWALSKI
23)
RICHARD TAYLOR
27)
LEYTON LANDSEND, LLC
FENCE x x x
3) FRANCES MAUREEN WICKLUM
DB. 5018 PG. 828
11)
CHARLES J. WRIGHT
DB. 7025 PG. 531
19)
KATHERINE C. OXENDINE
DB. 6844 PG. 838
DB. 6194 PG. 89
PROPERTY LINE - - - -
RIGHT-OF-WAY - - - -
DB. 649 PG. 642
PID: 06066035
DB. 897 PG. 195
PID: 06066043
DB. W14E PG. 529
PID: 06042123
PID: 06042002
GAS LINE — GAs GAS GAS —
PID: 06066031
ZONING: R-40 (WEDDINGTON)
PID: 06066039
ZONING: R-40 (WEDDINGTON)
PID: 06042056
ZONING: R-40 (WEDDINGTON)
ZONING: B-2 (WESLEY CHAPEL)
SANITARY SEWER LINE — Ss Ss SS —
ZONING: R-40 (WEDDINGTON)
ZONING: R-40 (WEDDINGTON)
ZONING: R-60 (WEDDINGTON)
FORCE MAIN � -
8)
ALFRED C. TAYLOR
16)
DANNY WAYNE AND CYNTHIA M.
24)
BRIAN BASHAM
28)
CENTRAL BAPTIST CHURCH OF
OVERHEAD UTILITIES °� °�
4) DONALD A. MCINNIS
DB. 881 PG. 789
12)
THR NORTH CAROLINA II, L.P.
SMITH
20)
JOHN H. JR AND CYNTHIA K DIXON
DB. 6596 PG. 565
MATTHEWS
WATER LINE W W W
DB. 972 PG. 521
DB. 6922 PG. 695
DB. 877 PG. 61
DB. 3737 PG. 318
PID: 06042122
DB. 977 PG. 211
STORM SEWER —SD SD SD SD—
PID: 06066036
PID: 06066040
TREE LINE
PID: 06066032
ZONING: R-40 (WEDDINGTON)
PID: 06066014
PID: 06042108
ZONING: R-40 (WEDDINGTON)
PID: 06042025D
UNDERGROUND TELEPHONE UGT UGT UGT
ZONING: R-40 (WEDDINGTON)
ZONING: R-40 (WEDDINGTON)
ZONING: R-60 (WEDDINGTON)
ZONING: R-40 (WEDDINGTON)
ZONING: R-40 (WESLEY CHAPEL)
LandDe '
223 NORTH GRAHAM STREET
CHARLOTTE, NC 28202
704.333.0325
WWW.LANDDESIGN.COM
NC ENG. FIRM LICENSE # C-0658
NOT A CERTIFIED DOCUMENT AS TO THE
ORIGINAL BUT ONLY TO THE REVISIONS.
THIS DOCUMENT WAS ORIGINALLY ISSUED
AND SEALED BY KRISTOPHER W. ROWE, P.E.
LICENSE #32666 ON 07/02/19 FOR PLANS
DATED 06/28/2019. THIS DOCUMENT IS ONLY
CERTIFIED AS TO THE REVISIONS INDICATEC
BY REVISION CLOUD UNDER "LOW DENSITY
RTAP".
DALE C. STEWART 07/02/2021
KEY MAP
SEAL
PROJECT
`�®� � ARCH/TF�1 ®� i
•�
=*:. C-015 8:*=
•o1y o
i
\\\\1111111111///
CAI '�,j
'
988 =
'�//O�' .FHGINEEE� �_4
''1j111111111\\\\
07/02/2021
TWIN LAKES
TOWN OF INDIAN TRAIL,
UNION COUNTY,
NORTH CAROLINA
TWIN LAKES, LLC
231 Post Office Dr. - Suite B-8
Indian Trail, NC 28079
LANDDESIGN PROJ.#
1017398
REVISION / ISSUANCE
NO.
DESCRIPTION
DATE
1
INITIAL SUBMITTAL
8/29/18
LAND DEVELOPMENT
2
12/21/18
SUBMITTAL
LAND DEVELOPMENT
3
02/04/19
SUBMITTAL
LAND DEVELOPMENT
4
02/21/19
SUBMITTAL
LAND DEVELOPMENT
5
05/07/19
SUBMITTAL
LAND DEVELOPMENT
6
06/04/19
SUBMITTAL
LAND DEVELOPMENT
7
06/28/19
SUBMITTAL
8
MIXED DENSITY RTAP
12/14/20
LOW DENSITY RTAP
07/02/21
DESIGNED BY: SMS
DRAWN BY: SMS
CHECKED BY: KWR
SCALE NORTH
VERT: N.T.S.
HO RZ: 1 "=200'
0 100, 200' 400'
SHEET TITLE
CULVERT DRAINAGE AREA
MAP
SHEET NUMBER
C410
7/12/2021 3:02 PM MEGAN SCHULTZ N:\ 2017\1017398\CAD\CONSTRUCTION DOCUMENTS\17398 PLN-CULVERT.DWG ORIGINAL SHEET SIZE: 24" X 36'

630
625
620
615
610
Q
W
=
Y
Oa0
O
O
Y
Oa0
O
O
PROPOSED
GROUND
LLI
CI-115
CI-115A
CI-119
5" RCP
0
15" RCP
D
D
EXISTING GROUND
-NOTE:
NO PROPOSED IMPACT TO
STREAM/WETLANDS
PROP. 96" CIRCULAR
CONCRETE CULVERT
BURIED 1'
17
EXIST. ELEV.
I
PROP. ELEV.
_ M
(n
N
`' )
(O CO
(O
N
ch N
'
M —
(0 CO
(O
LO
c m
m
N O
(0 M
(O
M
cq
�
N O
(0 M
(O
CD
(017
LO
N O
(0 M
(O
LO
m O
N
(0 M
(O
17 LO
N
N CD
(0 M
(O
1­
co (n
N O
(0 M
(O
00
o (p
LV
N O
(0 M
(O
—
o 00
N
N
(0 M
(O
(O
c m
O N
N
(0 co
(O
N
o
M
N
(0 M
(O
00
OP N
- '
N—
(0 M
(O
c
(O
N
(0 M
(O
m
(o LO
00 '
N
(0 M
(O
0+00
1� 7
PROP. 8" SANITARY
SEWER (TYP)
15' MANAGED USE
' BUFFER (TYP)
�30 STREAMSIDE
BUFFER (TYP
PROPOSED HEADWALL BY OTHERS
(SEE SHEET C209 FOR DETAILS)
1+00 2+00
CULVERT CROSS SECTION AT ROAD CENTERLINE (SCALE: 1 "=20' (H) 1 "=2' (V))
3+00
630
625
620
615
610
I /
i
.PROPOSED 8" WATERMAIN
SEE CHAPTER 9
I
20' WATERMAIN EASEMENT /
I
I
e
*lei
630
625
PROP. 96" CL
COP
(TYPE
621.00
620
DOWNSTREAP
INV. 614.0
615
61
610
605
PROPOSED
GROUND
15"
RCP
100 YR STORM:
625.28
ASS IV CIRCULAR
50 YR
STORM:
624.03
ICRETE CULVERT
I INSTALLATION)
25 YR
STORM:
623.03
622.00
7-777-777777
77\7\_7�XJ1\\\1
10 YR
7*
STORM:
621.83
-
\\\\I
\A
\V1
2 YR STORM: 619.84
PROPOSED HEADWALL BY OTHER
(SEE SHEET C209 FOR DETAILS)
UPSTREAM
INV. 615.00
\X
x
F\\
4\
F\
614.00
EXISTING
GROUND
3.00
PROP. 1'
FILL MATERIAL
OF APPROVED
I� (jN
M OV
(O N
(0
�O
(O M
(0
�N
0�
(p CO
(0
p0
CO
(0
00
N
N
(0
0)O
V
(O
Ln
(O
M
(O
(O
0+00 1 +00
CULVERT PROFILE AT CENTERLINE OF CULVERT (SCALE: 1 "=20' (H) 1 "=2' (V))
LEGEND:
EASEMENT
=0
630
=0
S
=9191
620
615
610
605
FENCE x x x
PROPERTY LINE — — — —
RIGHT-OF-WAY — — — —
SANITARY SEWER LINE — SS SS SS —
WATER LINE W W w
STORM SEWER —SD—SD—SD—SD—
TREE LINE
LandDesign-
223 NORTH GRAHAM STREET
CHARLOTTE, NC 28202
704.333.0325
WWW.LANDDESIGN.COM
NC ENG. FIRM LICENSE # C-0658
NOT A CERTIFIED DOCUMENT AS TO THE
ORIGINAL BUT ONLY TO THE REVISIONS.
THIS DOCUMENT WAS ORIGINALLY ISSUED
AND SEALED BY KRISTOPHER W. ROWE, P.E.
LICENSE #32666 ON 07/02/19 FOR PLANS
DATED 06/28/2019. THIS DOCUMENT IS ONLY
CERTIFIED AS TO THE REVISIONS INDICATEC
BY REVISION CLOUD UNDER "LOW DENSITY
RTAP".
DALE C. STEWART 07/02/2021
KEY MAP
SEAL
CA
* � C-015 8 : * =
®ems! °�°�;b ��`'��• ��
988
07/02/2021
PROJECT
TWIN LAKES
TOWN OF INDIAN TRAIL,
UNION COUNTY,
NORTH CAROLINA
TWIN LAKES, LLC
231 Post Office Dr. - Suite B-8
Indian Trail, NC 28079
LANDDESIGN PROJ.#
1017398
REVISION / ISSUANCE
NO.
DESCRIPTION
DATE
1
INITIAL SUBMITTAL
8/29/18
LAND DEVELOPMENT
2
12/21/18
SUBMITTAL
LAND DEVELOPMENT
3
02/04/19
SUBMITTAL
LAND DEVELOPMENT
4
02/21/19
SUBMITTAL
LAND DEVELOPMENT
5
05/07/19
SUBMITTAL
LAND DEVELOPMENT
6
06/04/19
SUBMITTAL
LAND DEVELOPMENT
7
06/28/19
SUBMITTAL
8
MIXED DENSITY RTAP
12/14/20
LOW DENSITY RTAP
07/02/21
DESIGNED BY: SMS
DRAWN BY: SMS
CHECKED BY: KWR
SCALE NORTH
VERT: 1'=2"
HO RZ: 1 "=20'
0 10, 20' 40'
SHEET TITLE
CULVERT CROSS SECTIONS
SHEET NUMBER
C411
7/12/2021 3:02 PM MEGAN SCHULTZ NA 2017\1017398\CAD\CONSTRUCTION DOCUMENTS\17398 PLN-CULVERT.DWG ORIGINAL SHEET SIZE: 24" X

LandDesign-
223 NORTH GRAHAM STREET
CHARLOTTE, NC 28202
704.333.0325
WWW.LANDDESIGN.COM
NC ENG. FIRM LICENSE # C-0658
+ \ CULVERT CREEK CROSSING CONSTRUCTION
/ SEQUENCE:
_ + + - 1. CONTRACTOR SHALL STOCKPILE ALL MATERIALS
AND FILL REQUIRED FOR CULVERT INSTALLATION
�O /� �S + +_ / AS CLOSE TO THE PROPOSED INSTALLATION
O�
� ado � � / SITE AS POSSIBLE. CONTRACTOR SHALL NOT
�1 a STOCKPILE ANY MATERIALS OR FILL WITHIN ANY
(INV: ±615.00)
18,�cP T STREAMS OR WETLANDS.
\ 4 + 2. CONTRACTOR SHALL INSTALL THE CULVERTS AS
4
�3 + + EFFICIENTLY AS POSSIBLE TO MINIMIZE THE
PROP. 125 LF 96" RCP CULVERT 0� CI-119 + + �o��oN + DURATION OF STREAM IMPACT.
\ / o�p�Fz 3. CONTRACTOR SHALL SCHEDULE CULVERT
� PROP. PIPELINE + INSTALLATION DURING A PERIOD WHERE NO RAIN
14 / + + IS EXPECTED (3 DAYS MINIMUM).
+ + + + 4. INSTALL EROSION CONTROL MEASURES AS
SHOWN ON EROSION CONTROL PLANS.
5. BEGIN BYPASS PUMPING.
+ + + / 6. CALL FOR ON -SITE INSPECTION BY INSPECTOR.
/ + + , WHEN APPROVED, CONTRACTOR SHALL BEGIN
PROP. HEADWALL DESIGN BY OTHERS �w \ ,/ INSTALLATION.
+
(SEE SHEET C209 FOR DETAILS) /
7. INSTALL THE CULVERT AND HEADWALLS IN THE
+ - + - + / MAIN CHANNEL.
+ + + 8. UPON COMPLETION OF THE CULVERT AND
(INV: ±614.00) / HEADWALL CONSTRUCTION, THE CONTRACTOR
/\ / + + CI-115A EXIST. STREAM CENTERLINE/ SHALL REMOVE THE BYPASS PUMPING AND
PROP. COFFER DAM + + + /
(OR APPROVED EQUAL) RESTORE THE DISTURBED AREA OF THE STREAM
(20 LF TEMP STREAM IMPACT) + + +
20' MANAGED USE BUFFER / TO EXISTING CONDITIONS.
// / + + N + + + / 9. CONTRACTOR MAY THEN BEGIN TO PLACE FILL
PROP. PUMP + 15" RCP + + + / OVER THE CULVERTS TO THE GRADES SHOWN
DISCHARGE LOCATION
30' STREAMSIDE BUFFER � ON THE PLANS.
15 JURISDICTIONAL Z 10. THE CONTRACTOR SHALL DILIGENTLY AND
PERENNIAL RPW +\ + + PROP. PUMP /
CONTINUOUSLY MAINTAIN ALL EROSION
+ + INLET LOCATION
CI-116 j
CONTROL DEVICES AND STRUCTURES.
+ 15" RCP PROP. COFFER DAM 11. CONTRACTOR SHALL ENSURE THAT EROSION
EXIST. STREAM + + (OR APPROVED EQUAL) CONTROL MEASURES ARE IN PLACE AND
TOP OF BANK i + + + I-115 (20 LF TEMP STREAM IMPACT) / FUNCTIONING PRIOR TO AND DURING
+ - /
i CONSTRUCTION.
/ + + PROP. HEADWALL DESIGN BY OTHERS 12. STABILIZATION IS THE BEST FORM OF EROSION
/
I
+ + � (SEE SHEET C209 FOR DETAILS) / CONTROL. TEMPORARY SEEDING IS NECESSARY
I
+ + �/ � � TO ACHIEVE EROSION CONTROL ON LARGE
+ �+ / / / DENUDED AREAS AND ESPECIALLY WHEN
SPECIFICALLY REQUIRED AS PART OF THE
/ CONSTRUCTION SEQUENCE. ALL SLOPES MUST
+ + + + \ BE SEEDED AND MULCHED WITHIN 7 CALENDAR
I
+ + DAYS.
o�vo� 13. STABILIZE SITE AS AREAS ARE BROUGHT TO
FINISHED GRADE.
14. NO DEVICE SHALL BE REMOVED UNTIL SITE IS
+� + / / STABILIZED.
+ + 15. ALL TEMPORARY STRUCTURES INSTALLED
+ + + \ / WITHIN THE CREEK/STREAM TO CONSTRUCT THE
l
PROPOSED CULVERT CROSSING I.E. DIKES,
PUMPS, ETC.) SHALL BE REMOVED WITHIN 7
�+ / CALENDAR DAYS OF COMPLETION OF THE
" I CULVERT INSTALLATION.
+ + + + / 16. ALL EROSION CONTROL MEASURES SHALL BE
_ � NOTE: CONSTRUCTED IN ACCORDANCE WITH NCDEQ,
+ " SEE SHEET C625 FOR CULVERT / I U.S. DEPT. OF AGRICULTURE, NCDOT, UNION
+ + + + � WETLANDS APPROVAL LETTER WITH COUNTY, AND TOWN OF INDIAN TRAIL
+ + + ADDITIONAL REQUIRED CONDITIONS. / STANDARDS AND SPECIFICATIONS.
NOTES:
1. CONTRACTOR SHALL MINIMIZE THE AMOUNT OF
TEMPORARY IMPACTS TO WATERS OF THE U.S.
BUT SHALL NOT BE MORE THAN 45 DAYS.
LEGEND:
EASEMENT
FENCE x x x
PROPERTY LINE — — — —
RIGHT-OF-WAY — — — —
SANITARY SEWER LINE — Ss Ss Ss —
WATER LINE W W w
STORM SEWER -SD-SD-SD-SD-
TREE LINE
NOT A CERTIFIED DOCUMENT AS TO THE
ORIGINAL BUT ONLY TO THE REVISIONS.
THIS DOCUMENT WAS ORIGINALLY ISSUED
AND SEALED BY KRISTOPHER W. ROWE, P.E.
LICENSE #32666 ON 07/02/19 FOR PLANS
DATED 06/28/2019. THIS DOCUMENT IS ONLY
CERTIFIED AS TO THE REVISIONS INDICATEC
BY REVISION CLOUD UNDER "LOW DENSITY
RTAP".
DALE C. STEWART 07/02/2021
KEY MAP
SEAL
PROJECT
v% Ito
* � C-015 8 : * =
®ems! °�°�;b ��`.'��r• ��
988
07/02/2021
TWIN LAKES
TOWN OF INDIAN TRAIL,
UNION COUNTY,
NORTH CAROLINA
TWIN LAKES, LLC
231 Post Office Dr. - Suite B-8
Indian Trail, NC 28079
LANDDESIGN PROJ.#
1017398
REVISION / ISSUANCE
NO.
DESCRIPTION
DATE
1
INITIAL SUBMITTAL
8/29/18
LAND DEVELOPMENT
2
12/21/18
SUBMITTAL
LAND DEVELOPMENT
3
02/04/19
SUBMITTAL
LAND DEVELOPMENT
4
02/21/19
SUBMITTAL
LAND DEVELOPMENT
5
05/07/19
SUBMITTAL
LAND DEVELOPMENT
6
06/04/19
SUBMITTAL
LAND DEVELOPMENT
7
06/28/19
SUBMITTAL
8
MIXED DENSITY RTAP
12/14/20
ALOW
DENSITY RTAP
07/02/21
DESIGNED BY: SMS
DRAWN BY: SMS
CHECKED BY: KWR
SCALE NORTH
VERT: N.T.S.
HO RZ: 1 "=20'
0 10, 20' 40'
SHEET TITLE
CULVERT EROSION
CONTROL PLAN
7/12/2021 3:02 PM MEGAN SCHULTZ NA 2017\1017398\CAD\CONSTRUCTION DOCUMENTS\17398 PLN-CULVERT.DWG ORIGINAL SHEET SIZE: 24" X 36
SHEET NUMBER
C412

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62°
6� 50/ /_
/ -z� /U��L/, -oL�l��//Q1/ �/ /-�1/,�, ��-�°/�i//1I///iY I� • /•/ / //j• �/- I�„ %� ,�/��\ �(V�I/1I�� ��//// I'/ lI /��� 6>�/ / f/h�� I1 )(�I/� °_ ° �/ I \/ / � �'/ i(6I//\ �/�I4\/\l v 0 / ♦I / I-\ //��/\ /�/��/I ♦ / \��Q/ /v�.�I^♦ �\/` /%/ \�/ I t� / 1/l�v /\/_ /\I� / \1 1)I ��\ / //�/lo1/ y` ♦I //1 ///( I �1 / I��I/��// , / � �/� ��/I \� //
l-1 ' �- l v �iI!l�/ /� -\ _/�\ B�l/��/ I-%//,\E;�\� II/I I �I �I�\�/ I��I♦/I\�`II_I
/ ��/\\//��♦� �� IrI♦�\ \�♦�°Q�/ �1I / •,\ /�♦H`\/� \ � /l� U\ Iv/ �\ 1�'
10
�
60
0
s _/0100 F SHEET FLOW
.7752 HOURS (46.5 MINUTES)r o
tiCpggEC 15REKp �`A
30
at
soo TOTA±8.3 ACRES
PRE-DEVELOPED DRAINAGE AREA k
(830 LF SHALLOW
CONCENTRATED FLOW
"� 4 HOURS (4.3 MINUTES)l0.072
/ yn('%%llg/ 670
PRer
STPOINT OF INTERE- /pVCqK�
I
�■ �A/ vI/ v/D' I �I- (I
/
PO
� 4\I
,♦/� •I �-
TIME OFCONCENTRATION LINE
7- 0_3037 HOURS (18.2 MINUTES)2 -40T ss 850 LF SHALLOW
CONCENTRATED FLOW
650
0.0 0 HOURS (3..8 MINUTES)
LF SHEET FLOW AV
-6 0.2407 HOURS (14.4 MINUTES)
As
A_ PRE -DEVELOPED
DRAINAGEAREA L
BOUNDARY (TYP) OJECT
660
14
l v BOUNDARY. I/I II � ♦ /�\v/
\
/
O
<C/ (TYP) .
/JECT
411
BOUNDARY_ ///e PRO(TYP) 25
%�
4Il/ /Xj/<
ED DRAINAGE AREA #16PRE_DEVELOP�T.v
�`Z11)\51620ON-SITE: ±98.1 AC EOFCONCENTRATION LINE
(70.6 MINUTES) 30
OFF -SITE +450 AC TIM
POINT OF INTEREST ♦TOTA_143.1 ACRES
LOWER LAKEPRE-DEVELOPEDs'oAINAGEAREADR
BOUNDARY TYP
el
� / 28
UPPER LAKE g°620-7
RCRp
4,800 LF CHANNEL FLOW LC
0.3291 HOURS (19.8 MINUTES) soo
630
�URCHROA
EULAH C9
"GRACE MEADOWS" 630 /UNDER DEVELOPMENT
so
61-77--
Al
_
11
62°
� \\
630
• ° \
�
�
1
I
\/I
/I
\
�-IvII/
I
I
II
V
l-
v\
�
�
/1I/v
/-A
/ \
SOIL TYPES
BaB BADIN CHANNERY SILT LOAM, 2 TO 8 PERCENT SLOPES (GROUP C)
BaC BADIN CHANNERY SILT LOAM, 8 TO 15 PERCENT SLOPES (GROUP C)
BdB2 BADIN CHANNERY SILTY CLAY LOAM, 2 TO 8 PERCENT SLOPES (GROUP C)
GfB2 GEORGEVILLE SILTY CLAY LOAD, 2 TO 8 PERCENT SLOPES (GROUP B)
GsB GOLDSTON-BADIN COMPLEX, 2 TO 8 PERCENT SLOPES (GROUP D)
DETENTION EVALUATION FOR PRE -DEVELOPED CONDITIONS
DRAINAGE AREA #1:
HYDRAULIC SOIL GROUP
SCS CURVE NUMBER:
• ON -SITE
•• WATER:
•• WOODS "C":
•• WOODS I'D`
•• EX. ROADS:
• OFF -SITE
•• 1-ACRE LOTS "C"
•• 1-ACRE LOTS I'D"
•• EX. ROADS:
TIME OF CONCENTRATION
FLOWS:
• 2-YEAR:
• 10-YEAR:
• 25-YEAR:
• 50-YEAR:
• 100-YEAR:
DRAINAGE AREA #2:
HYDRAULIC SOIL GROUP
SCS CURVE NUMBER:
• ON -SITE
•• WOODS "C":
TIME OF CONCENTRATION
FLOWS:
• 2-YEAR:
• 10-YEAR:
• 25-YEAR:
• 50-YEAR:
• 100-YEAR:
±143.1 ACRES
"C" AND "D" SOILS
m
98 (11.0 AC)
70 (47.2 AC)
77 (38.9 AC)
98 (1.0 AC)
79 (33.4 AC)
84 (11.0 AC)
98 (0.6 AC)
1.1767 HR (70.6 MIN)
102.12 CFS
192.60 CFS
252.48 CFS
301.29 CFS
356.77 CFS
±8.3 ACRES
"C" SOILS
70
70 (8.3 AC)
0.3037 HR (18.2 MIN)
9.25 CFS
19.96 CFS
27.36 CFS
33.51 CFS
40.59 CFS
LEGEND:
EASEMENT
FENCE
PROPERTY LINE
RIGHT-OF-WAY
GAS LINE
SANITARY SEWER LINE
FORCE MAIN
OVERHEAD UTILITIES
WATER LINE
STORM SEWER
TREE LINE
UNDERGROUND TELEPHONE
GAS
- ss -
O U­____O U
W W
ST
UGT UGT
LandDesign-
223 NORTH GRAHAM STREET
CHARLOTTE, NC 28202
704.333.0325
WWW.LANDDESIGN.COM
NC ENG. FIRM LICENSE # C-0658
NOT A CERTIFIED DOCUMENT AS TO THE
ORIGINAL BUT ONLY TO THE REVISIONS.
THIS DOCUMENT WAS ORIGINALLY ISSUED
AND SEALED BY KRISTOPHER W. ROWE, P.E.
LICENSE #32666 ON 07/02/19 FOR PLANS
DATED 06/28/2019. THIS DOCUMENT IS ONLY
CERTIFIED AS TO THE REVISIONS INDICATEC
BY REVISION CLOUD UNDER "LOW DENSITY
RTAP".
DALE C. STEWART 07/02/2021
KEY MAP
SEAL
PROJECT
C-015 8:
i
07/02/2021
TWIN LAKES
TOWN OF INDIAN TRAIL,
UNION COUNTY,
NORTH CAROLINA
TWIN LAKES, LLC
231 Post Office Dr. - Suite B-8
Indian Trail, NC 28079
LANDDESIGN PROJ.#
1017398
REVISION / ISSUANCE
NO.
DESCRIPTION
DATE
1
INITIAL SUBMITTAL
8/29/18
LAND DEVELOPMENT
2
12/21/18
SUBMITTAL
LAND DEVELOPMENT
3
02/04/19
SUBMITTAL
LAND DEVELOPMENT
4
02/21/19
SUBMITTAL
LAND DEVELOPMENT
5
05/07/19
SUBMITTAL
LAND DEVELOPMENT
6
06/04/19
SUBMITTAL
LAND DEVELOPMENT
7
06/28/19
SUBMITTAL
8
MIXED DENSITY RTAP
12/14/20
LOW DENSITY RTAP
07/02/21
DESIGNED BY: MEK
DRAWN BY: SS
CHECKED BY: KWR
SCALE NORTH
VERT: N/A
HO RZ: 1 "=200'
0 100, 200' 400'
SHEET TITLE
PRE -DEVELOPED DRAINAGE
AREA MAP
7/12/2021 3:02 PM MEGAN SCHULTZ NA 2017\1017398\CAD\CONSTRUCTION DOCUMENTS\17398 PLN-EX DA.DWG ORIGINAL SHEET SIZE: 24" X 36"
SHEET NUMBER
C413

LandDesign-
223 NORTH GRAHAM STREET
CHARLOTTE, NC 28202
704.333.0325
WWW.LANDDESIGN.COM
NC ENG. FIRM LICENSE # C-0658
NOT A CERTIFIED DOCUMENT AS TO THE
ORIGINAL BUT ONLY TO THE REVISIONS.
THIS DOCUMENT WAS ORIGINALLY ISSUED
AND SEALED BY KRISTOPHER W. ROWE, P.E.
LICENSE #32666 ON 07/02/19 FOR PLANS
DATED 06/28/2019. THIS DOCUMENT IS ONLY
CERTIFIED AS TO THE REVISIONS INDICATEC
BY REVISION CLOUD UNDER "LOW DENSITY
RTAP".
DALE C. STEWART 07/02/2021
KEY MAP
SEAL
PROJECT
CA it
ON
* � C-015 8 : * =
®ems! °�°�;b ��`'��•��
Coea 1gn
0988.-/
'FHGINV-
07/02/2021
TWIN LAKES
TOWN OF INDIAN TRAIL,
UNION COUNTY,
NORTH CAROLINA
TWIN LAKES, LLC
231 Post Office Dr. - Suite B-8
Indian Trail, NC 28079
LANDDESIGN PROJ.#
1017398
REVISION / ISSUANCE
NO.
DESCRIPTION
DATE
1
INITIAL SUBMITTAL
8/29/18
LAND DEVELOPMENT
2
12/21/18
SUBMITTAL
LAND DEVELOPMENT
3
02/04/19
SUBMITTAL
LAND DEVELOPMENT
4
02/21/19
SUBMITTAL
LAND DEVELOPMENT
5
05/07/19
SUBMITTAL
LAND DEVELOPMENT
6
06/04/19
SUBMITTAL
LAND DEVELOPMENT
7
06/28/19
SUBMITTAL
8
MIXED DENSITY RTAP
12/14/20
ALOW
DENSITY RTAP
07/02/21
DESIGNED BY: MEK
DRAWN BY: SS
CHECKED BY: KWR
SCALE NORTH
VERT: N/A
HO RZ: 1 "=200'
0 100, 200' 400'
SHEET TITLE
POST -DEVELOPED
DRAINAGE AREA MAP
SHEET NUMBER
C414
//12/2U21I 3W F'IVI IVIEi AN SUHUL I NA 2U1MIU1/:39b\UAU\UUNSI KUU I I UN UUUUIVIENIS\1I/39b F'LN-HUSI UA.UVV(3 UKIC31NA1_SHEEI SIZE: 24"X:iti"

50'UPLANDZONE
+\+ \ - - - - - - - - - /,' Y — \ -/ + - \\ \\ BUFFER(TYP)
+ +\ - - + / + + + +� / - _- \ \ \ 20' MANAGED USE
\+ + \- - - - - - -` * /+ +/�� _--%�. \\ \ BUFFER(TYP)
+ + / +� \ \ \
+ _t-- \ 37
v� + v + // yC +
41
+ v+ + + / +
30' STREAMSIDE
BUFFER(TYP)
+INV
+// + /+ + /+ +
+/ + 4---------- n29 + +
+ / `.+ + /+ I f
.M
+\ _ PROP. LOT
\\ 36 \ \\ LINE (TYP) ^�/
// — +
+ / /
NOTES:
1. SEE SHEET CHAPTER 4 FOR STORM SEWER GRADES AND INVERT ELEVATIONS.
2. SEE GRADING PLANS CHAPTER 5 FOR SITE GRADING INFORMATION.
3. RIM ELEVATIONS GIVEN ON THESE PLANS ARE APPROXIMATE AND ARE FOR INFORMATIONAL
PURPOSES ONLY. ACTUAL RIM ELEVATIONS SHALL BE DETERMINED BY CONTRACTOR AND
ADJUSTED TO MATCH FIELD CONDITIONS.
4. APPROVAL OF THIS PLAN IS NOT AN AUTHORIZATION TO GRADE ADJACENT PROPERTIES
5. THE PURPOSE OF THE STORM DRAINAGE EASEMENT IS TO PROVIDE STORM WATER
CONVEYANCE AND ANY STRUCTURES AND/OR OBSTRUCTION TO STORM WATER FLOW IS
PROHIBITED.
6. ALL DESIGN AND CONSTRUCTION METHODS SHALL BE DONE IN ACCORDANCE WITH UNION
COUNTY, NCDOT AND NCDEQ STANDARDS AND SPECIFICATIONS.
7. STORM DRAINAGE PIPE BETWEEN RISER STRUCTURE AND HEADWALL SHALL BE INSTALLED
WITH WATER TIGHT JOINTS AND ANTI -SEEP COLLARS.
8. ALL HEADWALLS / ENDWALLS TO BE DESIGNED BY OTHERS. CONTRACTOR SHALL SUBMIT
SHOP DRAWINGS FOR APPROVAL PRIOR TO CONSTRUCTION.
9. ANY EXPOSED RISER OUTLET PIPE IN POND SHALL BE PROTECTED FROM FLOTATION.
J.
STORM ' _ + + +/vim + _+ + + �� + I I / — A
:STOBE / ( � 1 A + + \ \ / / \ —���—/ + + / + I A I (1 ( \v I 1 -----� -'� i �_—
IOVED
I v / / v
sus . / / 1 \ PROP. STORM / \ /
\\ + � /� `� + I+ / ` V / + /+ \
DRAINAGE (TYP) /—�/--/ / / `� I /
+ /� l l / +i I l / / l l ♦ A
wv is' P ao — _ % / / I + 30' STREAMSIDE / // i /�� / / I /
v LOWER LAKE - \ / / I / - l _
\ NWSE: 598.0 - �v � ----- v, + + + / / + \ + + � � I // T.♦ � `-- ,1 � +
+ BUFFER (TYP) + / +- t +
+ +/
+ �JI+ + J / �.__ + + 41 +
+ 20' MANAGED USE / + / _ �� I \ + / + + /+
++ BUFFER(TYP) / ++ +i+�V♦ q�l I + / j i'/ ♦ ++H /
/ i- / \ �— l it / /i------ \ i \ ( -► / / / I
Z
// + // i
li/ PROP. CONCRETE--
\ WEIR (TO BE DESIGNED vv', A 1 �' V A +
BY STRUCTURAL A� v �\ [�' V A A \ + + _ � /o' ------ / V A /I + + ( / // / ��� + - + f — --/ +
— ¢ \ \
ENGINEER) V l __
�l + / / �� �� — /+ — -- _ ++
to
+ + + �/\\ - — — +++ l v \ +++
— ivy �/ \�,�� / UPPER LAKE \ V - — / J // V A\ - �\, + `� v— + +�\ +�
1NWSE: 606.0 \V-------/ / V C// / - �\\ /A� �+ + +
. ���----�\ ^_.//\ tic �� •� � +�+ , — _ � �`—v_i-------/ \��- �, i � \V/ // ,i/�� _^�.—'-----..V I I ) 1
al
+/_------- -—v— — v `—/// // \ I /� ��i i✓/v--i— i i ---- �' v A \ v— �♦ 1 — / / /,/ } +
_ _
- 1----�� — — — — A
-------- _ — — — — v ----------- —------- ---------------------------------
- —
—
---624 - i -- --- —� /—_+�#=-1- - A _ — / �+ + + + �/ + + <+ +, + +------- �- — �-c� + + + + +
+ , — --- — —
\�— l \iV``T\•f \F` \ 1 — + /--� ✓ V I �''+ + — — . 1 A— - / + --may
_ — - / --- ^\
\
{� A t t t y'' i —
�`/PROP. LOT vv�`A AV ` \V A �V V + \ \ \`� 1 /+ I �� ,---- I 1 v 30' STREAMSIDE 1 v— v/ 1 A+ +_+/ v— �� +v _ 1- — — — /+ +/� //'
1 �, ) �, V A \ \ V \ I -11 +' /'/ // �4, 1 1 \ BUFFER(TYP) \v— //� 1 /--v — / —�—/ +vim+ — — —+—� +
LINE(TYP) V�i1 / ) A ` \ V �A+ \ / +/ + / // I j \ \� _— �/ �
I' 1 l - USE — v --- '-- - — — — --
BUFFER(TYP)\ \ v 20' MANAGED U / 1
!s3o --- /1 I I A � - \ � __ 1 '-- __ I+ —
640
%� 6
64
/ ---�
--- / ♦- i ----
/ z o ) —� // I \ I v---- ter-- —
-- — — — — — — — — — — — — — — vv
// \ � �� I ' (\ � \V`, 1 � ,1—V 9 �PROP. STORM % 1
`/�/ �. / / / / / — v A / I \ I / / ( 1 1 1 G — / ------------------------ 6 1 1 1 DRAINAGE (TYP)
i
4
�c 6 \ 1 li 1 `- i /�� /F -— <_� G 1 I / —�'� / 625'--
♦44 V I /
1/
630
625
620
615
610
605
ME
595
590
585
NOTE:
ELEVATION OF EXISTING DAM IS APPROXIMATELY
606'. CONTRACTOR SHALL PLACE APPROXIMATELY 4'
OF SELECTED FILL ON DAM TO RAISE THE HEIGHT OF
THE DAM TO A MINIMUM OF 610'. SIDE SLOPES OF THE
FILL SHALL BE 2:1. CONTRACTOR SHALL COORDINATE
PLACEMENT OF FILL WITH GEOTECHNICAL ENGINEER.
TOP OF DAM
ELEV: 610.07__"_z�9
1111 1111 1111
_.._.._.._.._.._.._.._.._.._.._.._.._..
_.._.._.._.._.._.._.._.._.._.._.._.._..
_.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.. •25—YR WSE: _.. _.-.._.._..-.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.. _III=IIIIII=''
_.._.._.._.._.._.._.._.._.._.. -10—YR WSE: _.._.i. _.._6�.�6_.._.._.._.._.._.._.._..------ _.._.._.._..------ ------ _.._..------ ------ _.._..------ ------ _.._..------ _.._.._..
TOPOF WEIR _.._.._.._.._.._.._.._.._.._.._.._.._ _.._.._ _ _.._.._.._60g.1 5 _.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._..
ELEV: 606.0_.._.._........ _.._.._.._........ ......
_.._..T 2-YR WSE:_607.70_ 608.60--_--_---.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._..
INWSE;_606.0.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.._.. _. _. _. _. _. _. _. _. _. _. _. _. _. _. _. _. _. _. _. _. _. _. _. _. _. _. _. _. _.=III111111 1 1 11'
PROP. CONCRETE
IIIIIIIIIIII_
WEIR (TO BE DESIGNED BEGIN CONCRETE PLACEMENT
III=III=III=III= 1
BY STRUCTURAL FOR WEIR A MINIMUM OF 2'
-
ENGINEER) BELOW NORMAL WATER
-
SURFACE ELEVATION.
NWSE: 598.0
=1IIIIIIII
77 I I I
BOTTOM OF LAKE TYP III III III III III III III —III =III
III_ " 1 1I III I I1 I I1 I I1 I I1 I I1 I I1 I I1 I I1 I I1 I I1 I I1 I I1 I I1 I I=1 I I1 I IIII1TI1il� � �' ' ' _
-
END CONCRETE PLACEMENT
FOR WEIR A MINIMUM OF 4'
= 11 1i BELOW NORMAL WATER
SURFACE ELEVATION.
UPPER LAKE SECTION
1" = 60'
TOP OF DAM: 610.0
630
625
620
615
610
605
.99
I a III III III
WEIR ELEV: 606.0
PROP. CONCRETE
WEIR (TO BE DESIGNED
BY STRUCTURAL
ENGINEER)
I I I� I I I I I I I I I III III I III I
CONCRETE WEIR SECTION
N.T.S.
LEGEND:
595 EASEMENT
FENCE
PROPERTY LINE
RIGHT-OF-WAY
590 GAS LINE
SANITARY SEWER LINE
FORCE MAIN
OVERHEAD UTILITIES
WATER LINE
585 STORM SEWER
TREE LINE
UNDERGROUND TELEPHONE
TOP OF DAM: 610.0
LandDesign-
223 NORTH GRAHAM STREET
CHARLOTTE, NC 28202
704.333.0325
WWW.LANDDESIGN.COM
NC ENG. FIRM LICENSE # C-0658
NOT A CERTIFIED DOCUMENT AS TO THE
ORIGINAL BUT ONLY TO THE REVISIONS.
THIS DOCUMENT WAS ORIGINALLY ISSUED
AND SEALED BY KRISTOPHER W. ROWE, P.E.
LICENSE #32666 ON 07/02/19 FOR PLANS
DATED 06/28/2019. THIS DOCUMENT IS ONLY
CERTIFIED AS TO THE REVISIONS INDICATEC
BY REVISION CLOUD UNDER "LOW DENSITY
RTAP".
DALE C. STEWART 07/02/2021
KEY MAP
SEAL
PROJECT
V•7
C-015
Vp
07/02/2021
TWIN LAKES
TOWN OF INDIAN TRAIL,
UNION COUNTY,
NORTH CAROLINA
TWIN LAKES, LLC
231 Post Office Dr. - Suite B-8
Indian Trail, NC 28079
LANDDESIGN PROJ.#
1017398
REVISION / ISSUANCE
NO.
DESCRIPTION
DATE
1
INITIAL SUBMITTAL
8/29/18
LAND DEVELOPMENT
2
12/21/18
SUBMITTAL
LAND DEVELOPMENT
3
02/04/19
SUBMITTAL
LAND DEVELOPMENT
4
02/21/19
SUBMITTAL
LAND DEVELOPMENT
5
05/07/19
SUBMITTAL
LAND DEVELOPMENT
6
06/04/19
SUBMITTAL
LAND DEVELOPMENT
7
06/28/19
SUBMITTAL
8
MIXED DENSITY RTAP
12/14/20
LOW DENSITY RTAP
07/02/21
DESIGNED BY: MEK
DRAWN BY: SS
CHECKED BY: KWR
SCALE NORTH
VERT: 1 "=6'
HO RZ: 1 "=60'
0 30' 60' 120'
SHEET TITLE
EXISTING LAKE PLAN
7/12/2021 3:03 PM MEGAN SCHULTZ NA 2017\1017398\CAD\CONSTRUCTION DOCUMENTS\17398 PLN-EX LAKE.DWG ORIGINAL SHEET SIZE: 24" X 3E
SHEET NUMBER
C415

HW-1 44 RI P-RAP APRON
PIPE INVERT: 624.00
WIDTH: 18.5' (MIN.)
LENGTH: 15' (MIN.)
_ THICKNESS: 18" (MIN.)
CLASS B RIP -RAP (NCDOT)
- - HW-1
18" INV. OUT: 62=(OS-1
PROPOSED SPILLWAY
RIP -RAP APRON
WIDTH: 10' (MIN.) _
THICKNESS: 18" (MIN.)
CLASS B RIP -RAP (NCDOT)
P-OH
P-OH
P-OH _P-pH oS-1 /
RIM:626.49
/ 2.0" DIA. WQ ORIFICE INV.: 628.00 /
2.0' x 1.0' 2/10/25 YEAR ORIFICE INV.: 630.50 OH
18" INV, OUT: 624.28 (HW-1)
PROPOSED STORM P �P-oH
DRAINAGE / BMP �P-oH
* EASEMENT (TYP) SEX. TOWER
7RIP�-RAP
\
j� � EX. UTILITY
o� o� EASEMENT \ / POH
Poff�
P,pH-
,� a3a / HW-143APRON6 IPIPE IN.00
Gary / 7- WIDTH: 16' (MIN.)
LENGTH: 14' (MIN.)
THICKNESS: 18" (MIN.)
�9 sae CLASS B RIP -RAP (NCDOT)
PROPOSED SPILLWAY
ELEV.: 633.00 oC
EX. PROPERTY LINE/ c(
PROJECT BOUNDARY o
(TYP)
636 _
PROPOSED STO,.,.,
DRAINAGE / BMP
EASEMENT (TYP)
638 �/ \
/
NAM
i
6p0
i
111
7
61,
, �
/ �p CC
SOo
i o
j
I
WET POND #1
DA: 6.80 ACRES
TOP OF BERM: 634.00
PERMANENT POOL: 628.00
SEDIMENT STORAGE ELEV: 622.00
BOTTOM ELEV: 621.00
SEDIMENT
CLEAN
OUT
MARKER
(SEE
DETAIL
SHEET
C624)
-
/
1
I
45 LF OF 24" RCP (WATERTIGHT) @ 0.80%
FOREBAY BERM 634 0 -
TOP OF BERM: 629.00
629
628
o
18" R
MH-142
arya arya a2� RIM:639,89
/6ryry a2a e2 arya aryg \ 15" INV. IN: 635.52 (CI-139)
6a6 , 18" INV. IN: 635.27 (DI-141y
as \ 24" INV. OUT: 628.19(HVV-143)
aa� 0
/
/
/ \HW-143 /
24" INV. OUT: 628.00 ( H-1 24) \
/ I N
/
PROPOSED STORM
DRAINAGE (TYP) \ /
638
/ \ PROP. 15' STORM ESMT. (TYP) \
--- 640 - - - - - - - - - - I l
PROPOSED STORM I
DRAINAGE / BMP
/ EASEMENT (TYP)
642 _ \`
\ I
PROPOSED LOT -
LINE (TYP)
ro 60/ \
O'oF 100 YR ELEV: 632.74
50 YR ELEV: 632.26
25 YR ELEV: 631.76
10 YR ELEV: 631.14
2 YR ELEV: 630.55
INLET PIPE �WQ ELEV: 629.62ELEV: 629.62
SEE ABOVE FOR LOCATION,
INVERT, AND PIPE SIZE RIP -RAP APRON
(TYPICAL) TOP OF BERM: 629.00
OQ� II IIIIII
5 III III III
SEDIMENT STORAGE ELV: 622.00
NOTES:
1. SEE SHEET CHAPTER 4 FOR STORM SEWER GRADES AND INVERT ELEVATIONS.
2. SEE GRADING PLANS CHAPTER 5 FOR SITE GRADING INFORMATION.
3. RIM ELEVATIONS GIVEN ON THESE PLANS ARE APPROXIMATE AND ARE FOR INFORMATIONAL
PURPOSES ONLY. ACTUAL RIM ELEVATIONS SHALL BE DETERMINED BY CONTRACTOR AND
ADJUSTED TO MATCH FIELD CONDITIONS.
4. APPROVAL OF THIS PLAN IS NOT AN AUTHORIZATION TO GRADE ADJACENT PROPERTIES
5. THE PURPOSE OF THE STORM DRAINAGE EASEMENT IS TO PROVIDE STORM WATER
CONVEYANCE AND ANY STRUCTURES AND/OR OBSTRUCTION TO STORM WATER FLOW IS
PROHIBITED.
6. ALL DESIGN AND CONSTRUCTION METHODS SHALL BE DONE IN ACCORDANCE WITH UNION
COUNTY, NCDOT AND NCDEQ STANDARDS AND SPECIFICATIONS.
7. STORM DRAINAGE PIPE BETWEEN RISER STRUCTURE AND HEADWALL SHALL BE INSTALLED
WITH WATER TIGHT JOINTS AND ANTI -SEEP COLLARS.
8. ALL HEADWALLS / ENDWALLS TO BE DESIGNED BY OTHERS. CONTRACTOR SHALL SUBMIT
SHOP DRAWINGS FOR APPROVAL PRIOR TO CONSTRUCTION.
9. ANY EXPOSED RISER OUTLET PIPE IN POND SHALL BE PROTECTED FROM FLOTATION.
BOTTOM OF FOREBAY: 620.50
FOREBAY BERM
(TYPICAL)
6' x 6' OUTLET RISER WITH -
REMOVABLE TRASH RACK
TOP OF RISER: 632.50
2/10/25-YEAR DETENTION ORIFICE_
PERMANENT POOL ELEV: 628.00
SEDIMENT STORAGE ELV: 622.00
BOTTOM OF BASIN: 621.00
1.75 " WQ ORIFICE
II II II II III II III,,,III,,,III���III���III��IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
WET POND 1 SECTION
N.T.S.
POND MAINTENANCE NOTE:
IN ORDER TO DRAIN THE POND FOR MAINTENANCE, THE PERMANENT POOL SHALL
BE DRAINED USING A PUMP OVER A 24-HOUR PERIOD (135 GPM). PUMP SHALL
DISCHARGE THROUGH AN APPROVED FILTER MEDIA THAT MEETS OR EXCEEDS THE
PROVISIONS OF THE CLEAN WATER ACT.
FILL RISER WITH CONCRETE TO
INVERT OF OUTLET PIPE (t 1.28 VF)
6' X 6' OUTLET STRUCTI
REINFORCED CONCRETE E
WITH PEAKED ROOF TRASH R/
CREST ELEVATION: 63:
2/10/25-YEAR DETENTION ORIFIC
W=2.0' H=1.0'(2.0SQUAREFEE'
TOP ELEVATION: 631.`.
INVERT ELEVATION: 630.E
WATER QUALITY ORIFI
2.0" DIAMET
INVERT ELEVATION: 628
STRUCTURE
i
OUTLET STRUCTURE SCHEMATIC
N.T.S.
ORIFICE SHALL BE INSTALLED
WITH A RUBBER BOOT OR
EQUIVILENT WATERTIGHT
CONNECTION
-ICE
PVC WATER QUALITY ORIFICE DETAIL
CONTRACTOR SHALL PROTECT PIPE
WITHIN THE BASIN FROM FLOTATION
10,
SPILLWAY: 633.00
"7
S
�O,o
Q� F
5�01 III III III III III III III III III III III III III
-
- I
EARTHEN B, E_
-
COMPACTED TO 95% =
STANDARD PROCTOR
:1 6
SCOPE
ANTI -SEEP COLLAR (TYP)
=III III -III -III
OUTLET PIPE WITH
WATER TIGHT JOINTS
��� �ii iii I III III III _III III...III,,,III �����iiii�lllll
BASE MUST CONTAIN AT MINIMUM 242 CUBIC
FEET OF CONCRETE FOR ANTI -FLOTATION
(11.0' (L) X 11.0' (W) X 2.0' (H))
TOP OF BASE = 623.00
BOTTOM OF BASE = 621.00
%LLED INTERIOR
DTURE FOR
LANCE.
CONCRETE BASE FOR
ANTI -FLOATATION
MINIMUM 242 CUBIC
FEET OF CONCRETE
(11' (L) x 11' (W) x 2' (H))
ZOPOSED PIPE
IAMETER VARIES)
CLASS B CONCRETE
VVIU 1 n
SECTION
VVIU 1 r1
ANTI -SEEP COLLAR
N.T.S.
LEGEND:
EASEMENT
FENCE
PROPERTY LINE
RIGHT-OF-WAY
GAS LINE
SANITARY SEWER LINE
FORCE MAIN
OVERHEAD UTILITIES
WATER LINE
STORM SEWER
TREE LINE
LASS B CONCRETE
LandDesign
223 NORTH GRAHAM STREET
CHARLOTTE, NC 28202
704.333.0325
WWW.LANDDESIGN.COM
NC ENG. FIRM LICENSE # C-0658
NOT A CERTIFIED DOCUMENT AS TO THE
ORIGINAL BUT ONLY TO THE REVISIONS.
THIS DOCUMENT WAS ORIGINALLY ISSUED
AND SEALED BY KRISTOPHER W. ROWE, P.E.
LICENSE #32666 ON 07/02/19 FOR PLANS
DATED 06/28/2019. THIS DOCUMENT IS ONLY
CERTIFIED AS TO THE REVISIONS INDICATEC
BY REVISION CLOUD UNDER "LOW DENSITY
RTAP".
DALE C. STEWART 07/02/2021
KEY MAP
SEAL
CA
*� C-015 8:*=
\\\\111111111j/��
CAI?0
988
''//111111111\�``
07/02/2021
PROJECT
TWIN LAKES
TOWN OF INDIAN TRAIL,
UNION COUNTY,
NORTH CAROLINA
TWIN LAKES, LLC
231 Post Office Dr. - Suite B-8
Indian Trail, NC 28079
LANDDESIGN PROJ.#
1017398
REVISION / ISSUANCE
NO.
DESCRIPTION
DATE
1
INITIAL SUBMITTAL
8/29/18
LAND DEVELOPMENT
2
12/21/18
SUBMITTAL
LAND DEVELOPMENT
3
02/04/19
SUBMITTAL
LAND DEVELOPMENT
4
02/21/19
SUBMITTAL
LAND DEVELOPMENT
5
05/07/19
SUBMITTAL
LAND DEVELOPMENT
6
06/04/19
SUBMITTAL
LAND DEVELOPMENT
7
06/28/19
SUBMITTAL
8
MIXED DENSITY RTAP
12/14/20
9
LOW DENSITY RTAP
07/02/21
DESIGNED BY: MEK
DRAWN BY: SS
CHECKED BY: KWR
SCALE NORTH
VERT: 1 "=2'
HO RZ: 1 "=20'
0 10, 20' 40'
SHEET TITLE
WET POND #1 PLAN
SHEET NUMBER
C416
7/12/2021 3:04 PM MEGAN SCHULTZ NA 2017\1017398\CAD\CONSTRUCTION DOCUMENTS\17398 PLN-POST DA.DWG ORIGINAL SHEET SIZE: 24" X

11.0' x 11.0' x 2.0'
CAST -IN -PLACE
ANTI -FLOTATION
#4 REBAR
V-0" BEYOI
EDGE OF F
6' x 6' PRE
RISER
O
N
ANTI -FLOTATION REBAR
PLAN VIEW
0.58'
U
6, 0.58'
1'
2' 2' 1'
0
0 0
0
1'
0 o
2' 2' 1'
0
0 0
01
1010
#4 REBAR (TYP)
o
O
a
°
�
a
SECTION A -A
18" x 4" x 1 /2" GALV. STL. STRAP
TO BE BOLTED TO RISER AT
JOINTS ON ALL 4 SIDES WITH
0.5" DIAMETER STAINLESS
STEEL BOLTS (TYP)
#4 REBAR (TYP)
11.0' x 11.0' x 2.0'
CAST -IN -PLACE CONCRETE
ANTI -FLOTATION BLOCK
O
N
WET POND MAINTENANCE
THE PROPERTY OWNER SHALL MAINTAIN THE PROPOSED WET POND BMP IN GOOD
WORKING CONDITION ACCEPTABLE TO UNION COUNTY STANDARDS AND IN ACCORDANCE
WITH THE NC DEQ STORMWATER DESIGN MANUAL. AT A MINIMUM THE FOLLOWING IS
REQUIRED:
1. IMMEDIATELY AFTER THE WET POND IS ESTABLISHED, THE PLANTS ON THE
VEGETATED SHELF AND PERIMETER OF THE BASIN SHOULD BE WATERED TWICE
WEEKLY IF NEEDED, UNTIL THE PLANTS BECOME ESTABLISHED (COMMONLY SIX
WEEKS).
2. NO PORTION OF THE WET POND SHOULD BE FERTILIZED AFTER THE FIRST INITIAL
FERTILIZATION THAT IS REQUIRED TO ESTABLISH THE PLANTS ON THE VEGETATED
SHELF.
3. STABLE GROUNDCOVER SHOULD BE MAINTAINED IN THE DRAINAGE AREA TO
REDUCE THE SEDIMENT LOAD TO THE WET POND.
4. IF THE POND MUST BE DRAINED FOR AN EMERGENCY OR TO PERFORM
MAINTENANCE, THE FLUSHING OF SEDIMENT THROUGH THE EMERGENCY DRAIN
SHOULD BE MINIMIZED AS MUCH AS POSSIBLE.
5. ONCE A YEAR, A DAM SAFETY EXPERT SHOULD INSPECT THE EMBANKMENT.
6. AFTER THE WET POND IS ESTABLISHED, IT SHOULD BE INSPECTED ONCE EVERY
THREE MONTHS. INSPECTION ACTIVITIES SHALL BE PERFORMED AS DESCRIBED IN
THE NC DEQ STORMWATER DESIGN MANUAL AND ANY REPAIRS SHALL BE MADE
IMMEDIATELY.
5. THE STORM DRAINAGE SYSTEM AND STORM WATER BMP SHALL BE PRIVATELY
OWNED AND MAINTAINED.
6. THE STORM DRAINAGE EASEMENTS DEPICTED ON THESE PLANS ARE FOR A
PRIVATELY OWNED AND MAINTAINED STORM DRAINAGE SYSTEM.
7. THE STORM WATER BMP EASEMENTS DEPICTED ON THESE PLANS ARE FOR A
PRIVATELY OWNED AND MAINTAINED WET POND (BMP).
0.58'
6'
0.58'
1'
2'
2' 1'
U
1'
0 0
2'
o
2' 1'
0 0
0
0 01 10
OUTLET PIPE
I
I
\
o
#4 REBAR (TYP)
o
°1,
°
I
1'°
a
1'
° L
1'
L
1'a
1b
I ^
�
a
SECTION B-B
18" x 4" x 1 /2" GALV. STL. STRAP
TO BE BOLTED TO RISER AT
JOINTS ON ALL 4 SIDES WITH
0.5" DIAMETER STAINLESS
STEEL BOLTS (TYP)
DAM AND EMBANKMENT CONSTRUCTION
1. GENERAL - THE BASIN AND DAM AREA SHALL BE CLEARED, GRUBBED AND STRIPPED
OF ALL VEGETATIVE MATERIAL AND TOP SOIL PRIOR TO DAM CONSTRUCTION /
RECONSTRUCTION. THE DISPOSAL OF TREES, STUMPS, CONSTRUCTION DEBRIS,
VEGETATIVE MATERIAL, ETC. SHALL NOT BE PERMITTED IN THE DAM OR BASIN
AREA. WHEN BLASTING IS USED TO REMOVE ROCK FROM THE BASIN AREA, THE
BLASTED AREA SHALL BE OVER -EXCAVATED TO A DEPTH OF AT LEAST TWO FEET
(2') BELOW FINISHED GRADE AND BROUGHT BACK TO FINISHED GRADE WITH CLEAN
RELATIVELY IMPERVIOUS SOIL MATERIAL COMPACTED IN PLACE. CONTRACTOR
SHALL CONSULT GEOTECHNICAL ENGINEER FOR ANY ADDITIONAL REQUIREMENTS
FOR DAM CONSTRUCTION.
2. EARTH FILL DAMS
2.1. SOIL MATERIALS USED FOR EARTH FILL WHICH ARE HIGHLY PERMEABLE OR
WHICH EXHIBIT SIGNIFICANT SHRINKAGE OR SWELL, OR DISPERSION SHALL
NOT BE USED IN THE EMBANKMENT.
#4 REBAR (TYP)
2.2. A CUTOFF TRENCH (CORE TRENCH) SHALL BE PROVIDED WITH A MINIMUM
WIDTH OF FIVE FEET (5'). THE CENTERLINE OF THE CUTOFF TRENCH SHALL
NOT BE LOCATED DOWNSTREAM OF THE INSIDE TOP OF SLOPE OF THE DAM.
THE CUTOFF TRENCH SHALL BE CAREFULLY BACK -FILLED WITH HIGHLY
IMPERMEABLE MATERIAL AND COMPACTED TO AT LEAST NINETY-FIVE
PERCENT (95%) OF STANDARD PROCTOR.
2.3. THE MINIMUM TOP WIDTH OF THE DAM SHALL BE FIVE FEET (6) AND
PERMANENT SLOPES SHALL NOT BE STEEPER THAN 3:1 (THREE HORIZONTAL
TO ONE VERTICAL) ON THE DAM OR EMBANKMENTS AROUND THE BASIN.
2.4. ALL DISTURBED GROUND AREAS AND EMBANKMENTS SURROUNDING THE
BASIN SHALL BE MECHANICALLY STABILIZED OR HAVE PERMANENT SEEDING
SCHEDULE.
11.0'x11.0'x2.0'
CAST -IN -PLACE CONCRETE
ANTI -FLOTATION BLOCK
JOINT SEALANT
MM r7 /'• A C%-r M1[%CM
B" x 4" x 1 /2" GALV. STL. STRAP
O BE BOLTED TO RISER AT
DINTS ON ALL 4 SIDES WITH
.5" DIAMETER STAINLESS
_TEEL BOLTS (TYP)
SECTION C-C
A„
GALVANIZED STEEL STRAP
LandDesign-
223 NORTH GRAHAM STREET
CHARLOTTE, NC 28202
704.333.0325
WWW.LANDDESIGN.COM
NC ENG. FIRM LICENSE # C-0658
NOT A CERTIFIED DOCUMENT AS TO THE
ORIGINAL BUT ONLY TO THE REVISIONS.
THIS DOCUMENT WAS ORIGINALLY ISSUED
AND SEALED BY KRISTOPHER W. ROWE, P.E.
LICENSE #32666 ON 07/02/19 FOR PLANS
DATED 06/28/2019. THIS DOCUMENT IS ONLY
CERTIFIED AS TO THE REVISIONS INDICATEC
BY REVISION CLOUD UNDER "LOW DENSITY
RTAP".
DALE C. STEWART 07/02/2021
KEY MAP
SEAL
PROJECT
CA it
ON
* � C-015 8 : * =
Coea 1gn
0988.-/
'FHGINE�R
C.
07/02/2021
TWIN LAKES
TOWN OF INDIAN TRAIL,
UNION COUNTY,
NORTH CAROLINA
TWIN LAKES, LLC
231 Post Office Dr. - Suite B-8
Indian Trail, NC 28079
LANDDESIGN PROJ.#
1017398
REVISION / ISSUANCE
NO.
DESCRIPTION
DATE
1
INITIAL SUBMITTAL
8/29/18
LAND DEVELOPMENT
2
12/21/18
SUBMITTAL
LAND DEVELOPMENT
3
02/04/19
SUBMITTAL
LAND DEVELOPMENT
4
02/21/19
SUBMITTAL
LAND DEVELOPMENT
5
05/07/19
SUBMITTAL
LAND DEVELOPMENT
6
06/04/19
SUBMITTAL
LAND DEVELOPMENT
7
06/28/19
SUBMITTAL
8
MIXED DENSITY RTAP
12/14/20
LOW DENSITY RTAP
07/02/21
DESIGNED BY: MEK
DRAWN BY: SS
CHECKED BY: KWR
SCALE NORTH
VERT: N/A
HORZ: N/A 6
SHEET TITLE
WET POND DETAILS AND
NOTES
7/12/2021 3:04 PM MEGAN SCHULTZ NA 2017\1017398\CAD\CONSTRUCTION DOCUMENTS\17398 DTL-PONDS.DWG ORIGINAL SHEET SIZE: 24" X 36
SHEET NUMBER
C417

LandDesign.
223 NORTH GRAHAM STREET
CHARLOTTE, NC 28202
704.333.0325
WWW.LANDDESIGN.COM
NC ENG. FIRM LICENSE # C-0658
3!
Ar1rIUCC HATCH TO BE
D ON BERM SIDE OF
TRASH RACK SCHEMATIC
SCALE: N.T.S.
A
Inc
_
71
15.000
,.625 35.123
2.
3.875
A
32.000
���
500
3.875
TRASH RACK HATCH DETAIL
SCALE: N.T.S.
2.000 0
0 2.000
2.000
21.000
40.000
01
59.000
78.203
HINGED GATE OPENING APPROX. 36" x 32"
O o
0 0 01
1 v
co LO
72.000
80.00,
F1
■
--Emmm
limimimmm
MEN
ONE
-0
MEN
0
:
mmmmmmm
MEN
NONE-m—mmmommm
MEN
01
Now
E
E-10
0
0
0
ME
0001110000110-
SECTION A -A
SCALE 4:1
DRAIN GATE BAR IS
REMOVED IN VIEW
FOR CLARITY
0.406THRU ALL
►IAMETER ROD AT CROWN
25
V.VGaJ LJIrIIVIL ER ROD (TYP)
TRASH RACK DETAIL
SCALE: N.T.S.
TRASH RACK NOTES
1. TRASH RACKS SHALL BE CONSTRUCTED PER DETAILS
SHOWN.
2. TRASH RACKS SHALL BE CONSTRUCTED OF STAINLESS
STEEL OR ALUMINUM. PLASTIC/STEEL TRASH RACKS ARE
NOT ACCEPTED.
3. HATCHES SHALL BE SECURED WITH A LOCK AND CHAIN.
4. CONTRACTOR SHALL SUPPLY PAPERWORK STATING THE
SUPPLIED TRASH RACK HAS A MINIMUM 75 YEAR LIFE SPAN.
19.125
18.313
17.125
15.938
14.750
13.563
12.375
NOT A CERTIFIED DOCUMENT AS TO THE
ORIGINAL BUT ONLY TO THE REVISIONS.
THIS DOCUMENT WAS ORIGINALLY ISSUED
AND SEALED BY KRISTOPHER W. ROWE, P.E.
LICENSE #32666 ON 07/02/19 FOR PLANS
DATED 06/28/2019. THIS DOCUMENT IS ONLY
CERTIFIED AS TO THE REVISIONS INDICATEC
BY REVISION CLOUD UNDER "LOW DENSITY
RTAP".
DALE C. STEWART 07/02/2021
SEAL
PROJECT
®®011�� // j/�i'
* � C-015 8 : * =
i
07/02/2021
TWIN LAKES
TOWN OF INDIAN TRAIL,
UNION COUNTY,
NORTH CAROLINA
TWIN LAKES, LLC
231 Post Office Dr. - Suite B-8
Indian Trail, NC 28079
LANDDESIGN PROJ.#
1017398
REVISION / ISSUANCE
NO.
DESCRIPTION
DATE
1
INITIAL SUBMITTAL
8/29/18
LAND DEVELOPMENT
2
12/21/18
SUBMITTAL
LAND DEVELOPMENT
3
02/04/19
SUBMITTAL
LAND DEVELOPMENT
4
02/21/19
SUBMITTAL
LAND DEVELOPMENT
5
05/07/19
SUBMITTAL
LAND DEVELOPMENT
6
06/04/19
SUBMITTAL
LAND DEVELOPMENT
7
06/28/19
SUBMITTAL
8
MIXED DENSITY RTAP
12/14/20
ALOW
DENSITY RTAP
07/02/21
DESIGNED BY: MEK
DRAWN BY: SS
CHECKED BY: KWR
SCALE NORTH
VERT: N/A
HORZ: N/A 6
SHEET TITLE
WET POND DETAILS AND
NOTES
7/12/2021 3:04 PM MEGAN SCHULTZ NA 2017\1017398\CAD\CONSTRUCTION DOCUMENTS\17398 DTL-PONDS.DWG ORIGINAL SHEET SIZE: 24" X 36
SHEET NUMBER
C418

NOTES:
1. 4-6 INCH LAYER OF AMENDED SOIL IS RECOMMENDED ON
LITTORAL SHELF AREA WHERE PLANTINGS ARE REQUIRED (SEE
SOIL PARAMETERS IN BMP DESIGN MANUAL)
2. ALL WETPONDS SHALL HAVE A MINIMUM 15-FOOT ACCESS
EASEMENT TO CONNECTING TO DEDICATED PUBLIC RIGHT OF
WAY. ACCESS ROAD SHALL HAVE MIN. 12' STABILIZED WIDTH,
MAX. LONG. GRADE OF 15%, MAX. CROSS -SLOPE 5%. IN
ADDITION, A 10-FOOT WIDE PERMANENT MAINTENANCE ACCESS
EASEMENT MUST BE PROVIDED AROUND THE PERIMETER OF ALL
BMPS TO ALLOW FOR ADEQUATE MAINTENANCE AND REPAIR.
2:1 SLOPES
RIP RAP INLET
PROTECTION
OR INLET PIPE
POND MAINTENANCE INFORMATION
MUST BE POSTED AT SITE
SIGN
STORM DRAINAGE
EASEMENT (SIDE)
(t� ' 3:1 SLOPE
S.
N,
- r
' t T
I'4�Y `'I' ' 3!- �IAi, i':': 'Ti-•_ = n _'i'k�i' ' # � #
_ �
#�..;'
_=S7%.
,{ l
�" - #' ;,des;.
R(SER
SEDIMENT
OREBAY ..: 3:
PERMANENT POOL -ELEV.-- W/HOOD
'OR TRASH :..: .
RACK
- iA **.. 2:1 SLOPE
ALL BERM SLOPES TO BE
STABILIZED WITH GRASS.
\1,
��-"3:1 SLOPE
OUTFALL
PROTECTION
�;�4�::i;,.. MAINTENANCE DRAIN�`�\
ACCfssANCE.'. �e * „t VALVE (IN BERM) I
MERGENCY SPILLWAY
15' ACCESS
EASEMENT TO PUBLIC
R/W, (TYP)
PLAN VIEW
MUST BE LINED AND STABILIZED
(10MINIMUM LENGTH)
OPTIONAL: OUTLET STRUCTURE
MAY BE DESIGNED AS 50 YEAR
OVERFLOW IN LIEU OF EMERGENCY
SPILLWAY.
WETLAND PLANTING ON
6 FOOT 6:1 LITTORAL
SHELF AROUND PERIMETER
WETPOND PLAN
POST
(14 GAUGE)
2. T
04
SEDIMENT
1 "CLEAN OUT
SQUARE -FIT SLEEVE
(12 GAUGE)
D TH
NOTES:
1. POST SHALL BE 14-GAUGE GALVANIZED
STEEL, QUIK-PUNCH, ;" HOLES, 1" ON
CENTER, ALIGNED ON ALL SIDES, AND 2"
SQUARE, 10 FEET IN LENGTH.
2. THE SLEEVE SHALL BE 12-GAUGE
GALVANIZED STEEL, ?S" HOLES, 1" ON
CENTER, ALIGNED ON ALL SIDES, AND 2.25"
SQUARE, 30" IN LENGTH.
3. BOTTOM OF SIGN SHALL BE SET AT
SEDIMENT CLEAN OUT DEPTH.
W1 (FT.)
W2 (FT.
PLAN
LO
N
2, C`
0
0
N
KEY TO FASTENERS:
O" #16 X 2-j" CORNER BOLT (BREAKAWAY), ZINC
" #16 HEX NUT, STEEL
SEDIMENT CLEAN OUT MARKER
POST INSTALLATION
O
p
O
p
O
p
0
0
O
p
O
p
O
p
O
p
O
p
O
p
O
p
O
p
O
p
O
p
O
p
O
p
O
p
O
p
2" OVERLAP
oo
O
p
p0
O
p
EMBED 28"
O
p
O
p
O
p
O
p
O
p
VARIES
(TYP.)
SQUARE -FIT
SLEEVE
NOT TO SCALE
z
D
6"
NOTES:
* THIS PRECAST ENDWALL MAY BE USED FOR THE FOLLOWING
oU)
H
Q Q
fz-ICC U
STANDARDS: 838.01, 838.11, 838.21, 838.27, 838.33,
LL J �I--I z
1 0
O 1
-
H2
838.39, 838.51, 838.57, 838.63 AND 838.69.
* INSTALL PRECAST ENDWALLS WITH WINGS AND PAY
FOR IN ACCORDANCE WITH SPECIFICATION SECTION 838.
* USE 4000 PSI CONCRETE.
* PROVIDE ALL REINFORCING STEEL WHICH MEETS ASTM A615
FOR GRADE 60 AND WELDED WIRE FABRIC CONFORMING
TO ASTM A185 WITH 2" MIN. CLEARANCE.
PLACE LIFT HOLES OR PINS IN ACCORDANCE WITH
O 0 U) =
LLI Q z LL =
F- U O U
= z W
U �- LL O .J
=O O � Q
z ~ _
ap H
OSHA STANDARD 1926.704.
T LU0
H1
I
* PIPE TO BE GROUTED INTO HEADWALL AT JOB SITE BY
T 0
eO
-
CONTRACTOR
* ALL ELEMENTS PRECAST TO MEET ASTM C913.
* WELDED WIRE FABRIC MAY BE SUBSTITUTED FOR REBAR
AS LONG AS THE SAME AREA OF STEEL IS PROVIDED.
Tz-*
6"
8" O.C.(TYP.)
CHAMFER ALL CORNERS 1" OR HAVE A RADIUS OF 1".
REFER TO CHART
SIDE
FOR BAR SIZE
NOTE: THE MINIMUM BAR SIZE SHALL BE #5 BARS
AT 8" CTS.THE CONTRACTOR WILL HAVE THE OPTION
TO INCREASE THIS BAR SIZE AS NEEDED.
LU
= J Te
O J
LL. a O
ENDWALL DIMENSIONS
FT.
MINIMUM
MIN./MAX.
MIN./MAX.
MIN./MAX.
MIN./MAX.
MIN./MAX.
PIPE DIA.
BAR SIZE
H1(FT.)
H2(FT.)
D (FT.)
W1
W2
1.0
#5 @ 8"
1.25/2.00
2.00/3.75
1.25/1.75
3.00/3.75
5.50/6.00
1.25
#5 @ 8"
1.25/2.00
3.00/3.75
1.25/2.00
3.50/3.75
6.50/6.75
1.50
#5 @ 8"
1.25/2.00
3.00/4.25
1.50/2.50
3.50/3.75
6.50/6.75
2.0
#5 @ 8"
1.50/2.50
4.00/4.75
1.75/2.50
4.00/4.25
7.50/8.25
2.5
#5 @ 8"
2.50/3.50
4.00/6.00
2.00/3.00
4.50/5.50
10.00/11.50
3.0
#5 @ 8"
3.00/3.50
5.00/6.00
2.75/3.50
5.25/5.75
11.50/11.75
3.5
#5 @ 8"
3.25/4.50
6.00/6.75
3.25/3.50
6.00/6.75
12.00/13.25
4.0
#5 @ 8"
3.50/4.50
6.50/7.00
3.25/3.50
6.50/6.75
13.00/13.25
4.5
#5 @ 8"
4.00/5.00
6.50/8.50
3.25/4.00
7.00/9.25
13.50/15.75
5.0
#5 @ 8"
4.50/5.00
7.00/8.50
3.25/4.00
7.25/9.25
13.75/15.75
5.5
#5 @ 8"
4.50/5.00
1 7.50/8.50
3.25/4.00
1 7.25/9.25
1 14.00/15.75
6.0
#5 @ 8"
4.50/5.00
1 7.50/8.50
3.25/4.00
1 7.75/9.25
1 14.75/16.75
z
G rn
Q LU LU
o W D-
IH
� LU
n
O V ¢
QZ F
0
(J (3 =
N
Q ~ LU
N
Q V z
O W
a fr
a
LL
HEET 1 OF 1
838.80
RIP RAP BERM
AND WEIR INVERTED WATER
CLASS B RIP RAP
50 YEAR EVENT 15" MIN. DEPTH. QUALITY ORIFICE.
10' MIN. WATER STORAGE LOCATED THIS SIDE
SEE DETAIL-
J�
TEMPORARY POOL PERMANENT POOL
o g�0 F.E.S. R �A
HEADWAOLL
=1 I I=1 I I I=1 I I=1 I I=1 I I I I I I=I I I
STORM INLET s:1 SLOPE
6' LITTORAL SHELF
ENERGY DISSIPATOR 2:1 SLOPE STABILIZED
TO POND BOTTOM'
SEDIMENT FOREBA
POND PROFILE
NOTES:
1. 4-6 INCH LAYER OF AMENDED SOIL IS RECOMMENDED IN ANY AREA
WHERE PLANTINGS ARE REQUIRED (SEE SOIL PARAMETERS IN BMP
DESIGN MANUAL).
NOTES:
1. CLASS OR MEDIAN SIZE OF RIPRAP AND LENGTH, WIDTH AND DEPTH OF APRON
TO BE DESIGNED BY THE ENGINEER.
2. REFER TO THE NCDEQ BMP MANUAL FOR
RIPRAP APRON DESIGN STANDARDS.
3. RIPRAP SHOULD EXTEND UP BOTH SIDES OF THE APRON AND AROUND THE END
OF THE PIPE OR CULVERT AT THE DISCHARGE OUTLET AT A MAXIMUM SLOPE OF
2:1 AND A HEIGHT NOT LESS THAN TWO THIRDS THE PIPE DIAMETER OR
CULVERT HEIGHT.
4. THERE SHALL BE NO OVERFLOW FROM THE END OF THE APRON TO THE
SURFACE OF THE RECEIVING CHANNEL. THE AREA TO BE PAVED OR RIPRAPPED
SHALL BE UNDERCUT SO THAT THE INVERT OF THE APRON SHALL BE AT THE
SAME GRADE (FLUSH) WITH THE SURFACE OF THE RECEIVING CHANNEL. THE
APRON SHALL HAVE A CUTOFF OR TOE WALL AT THE DOWNSTREAM END.
5. THE WIDTH OF THE END OF THE APRON SHALL BE EQUAL TO THE BOTTOM
WIDTH OF THE RECEIVING CHANNEL. MAXIMUM TAPER TO RECEIVING CHANNEL 5:1
6. ALL SUBGRADE FOR STRUCTURE TO BE COMPACTED TO 95% OR GREATER.
7. THE PLACING OF FILL, EITHER LOOSE OR COMPACTED IN THE RECEIVING
CHANNEL SHALL NOT BE ALLOWED.
B. NO BENDS OR CURVES IN THE HORIZONTAL ALIGNMENT OF THE APRON
WILL BE PERMITTED.
9. FILTER FABRIC SHALL BE INSTALLED ON COMPACTED SUBGRADE PRIOR TO
PLACEMENT OF RIP RAP.
10. ANY DISTURBED AREA FROM END OF APRON TO RECIEVING CHANNEL
MUST BE STABILIZED.
1' FREEBOARD
LITTORAL SHELF W/ WETLAND
PLANTINGS, 10' MIN. WIDTH-7
10' MIN.
EMERGENCY WEIR
IF USED
EMBANKMENT
ANTI -SEEP
I VffFjF=I I I=I I I=111-f' 11= 1 I M; 1111=I 111=I 111=„
ANTI -FLOTATION PAD
DUCTILE IRON MAINTENANCE
BACK OF OUTLET STRUCTURE
LOCATED AT TOE OF 6:1 SLOPE DRAIN PIPE WITH SLUICE
MAIN POND GATE OR VALVE. (OFFUNE
FROM OUTLET AND LOCATE
VALVE IN BERM) 0.5 %
SLOPE MIN.
WETPOND PROFILE
OUTLET
La
W1
W2
*T
H
HW-143
14'
16'
6'
18"
1'
HW-144
15'
18.5'
3.75'
18"
1'
NAIUKAL UKAUL
PLAN
ELEVATION
MINIMUM H=2/3 PIPE DIAMETER
SECTION B-B
RIPRAP APRON AT PIPE OUTFALLS
OTHER THAN AT SWIM
INVERTED WATER QUALITY ORIFICE
LOCATED THIS SIDE (SEE DETAIL)
50 YEAR EVENT
STORMWATER STORAGE
TEMPORARY POOL
7
PERMANENT POOL
PERMANENT POOL
NOT TO SCALE
0
(IF NEEDED)
THICKNESS)=10" MIN.
MIN.
I
MAIN POND
BACK OF OUTLET STRUCTURE
LOCATED AT TOE OF 6:1 SLOPE
STRUCTURE
I LWATER QUALITY ORIFICE
WATER QUALITY ORIFICE DETAIL
LITTORAL SHELF W/ WETLAND
PLANTINGS, 6' MIN. WIDTH
1' FREEBOARD
F USED EMERGENCY WEIR
'
6
EMBANKMENT
r SLOPE
ANTI -SEEP
F'-n" n
rl COLLARS
,NTI-FLOTATION PAD
DUCTILE IRON MAINTENANCE
DRAIN PIPE WITH SLUICE
GATE OR VALVE. (OFFLINE
FROM OUTLET AND LOCATE
POND PROFILE VALVE IN BERM) 0.5% SLOPE MIN.
WETPOND
LITTORAL SHELF AND BERM DETAIL
Relimcom eyilex
LandDesigm.
223 NORTH GRAHAM STREET
CHARLOTTE, NC 28202
704.333.0325
WWW.LANDDESIGN.COM
NC ENG. FIRM LICENSE # C-0658
NOT A CERTIFIED DOCUMENT AS TO THE
ORIGINAL BUT ONLY TO THE REVISIONS.
THIS DOCUMENT WAS ORIGINALLY ISSUED
AND SEALED BY KRISTOPHER W. ROWE, P.E.
LICENSE #32666 ON 07/02/19 FOR PLANS
DATED 06/28/2019. THIS DOCUMENT IS ONLY
CERTIFIED AS TO THE REVISIONS INDICATEC
BY REVISION CLOUD UNDER "LOW DENSITY
RTAP".
DALE C. STEWART 07/02/2021
KEY MAP
SEAL
CAft
* � C-015 8 : * =
W.
i
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988
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07/02/2021
PROJECT
TWIN LAKES
TOWN OF INDIAN TRAIL,
UNION COUNTY,
NORTH CAROLINA
TWIN LAKES, LLC
231 Post Office Dr. - Suite B-8
Indian Trail, INC 28079
LANDDESIGN PROJ.#
1017398
REVISION / ISSUANCE
NO.
DESCRIPTION
DATE
1
INITIAL SUBMITTAL
8/29/18
LAND DEVELOPMENT
2
12/21/18
SUBMITTAL
LAND DEVELOPMENT
3
02/04/19
SUBMITTAL
LAND DEVELOPMENT
4
02/21/19
SUBMITTAL
LAND DEVELOPMENT
5
05/07/19
SUBMITTAL
LAND DEVELOPMENT
6
06/04/19
SUBMITTAL
LAND DEVELOPMENT
7
06/28/19
SUBMITTAL
8
MIXED DENSITY RTAP
12/14/20
AgLOW
DENSITY RTAP
07/02/21
DESIGNED BY: MEK
DRAWN BY: SS
CHECKED BY: KWR
SCALE NORTH
VERT: N/A
HORZ: N/A
SHEET TITLE
WET POND DETAILS AND
NOTES
7/12/2021 3:04 PM MEGAN SCHULTZ NA 2017\1017398\CAD\CONSTRUCTION DOCUMENTS\17398 DTL-PONDS.DWG ORIGINAL SHEET SIZE: 24" X
SHEET NUMBER
C419

v,Oj•1 BACK OF CURB FRAME GRATE AND HOOD NOTES: MORTAR JOINTS L�" +/- It" THICK. p m Zp pm 4 X D OUTLET W/DITCH OUTLET W/0 DITCH z LandDesigm.
SEE STD.NO. 840.03 r•-I O O $� IH D CLASS 'B' RIP RAP CLASS I RIP RAP CLASS 'B' RIP RAP CLASS I RIP RAP O- O I --I X USE CLASS "B" CONCRETE THROUGHOUT. I --I
< TOP ELEVATION H } - EXPANSION JOINTS r <
USE FORMS FOR CONSTRUCTION OF THE BOTTOM SLAB. Q < <Q < A� rexrx_ I. -LE rExrxL rexrx LE ~Q
I --I z'� 1'-0' Q I --I' z Q rl' z TONS - S.Y. TONS - TONS - S.Y. TONS - Q
O p DEDUCT FOR PIPE(S) FROM TOTAL CU. YDS. OF BRICK MASONRY. Z H = 37 O p 8" E 4'-6" q'-g" Q H = • 37 p rr
D l..lp�p C U AI..I0m ZC=U DIO.r Opp 12 2 5 5 2 5 1 4 2 1 4 ZC=c)
mO m Y Y PROVIDEBALLDCATCH BASINS OVERE3S 6" IN DEPTH WITH STEPS 12" LL J O_ H Z m O #4 BARS "V„cl) 6" { 6' ~ O C7 r m N rr I I ap C7 Z 223 NORTH GRAHAM STREET
z = A p = z = I STD. 840.03 FRAME wo Jo 0_ = z m Z = 15 2 7 7 3 7 1 5 3 2 6 0 0 = CHARLOTTE, NC 28202
F-I � D ____ _ - - ON CENTER. USE STEPS WHICH COMPLY WITH STD. DRAWING 840.66. Oct) I --I D @ EQUAL SPACES GRATE & HOOD O ~ D " O
= O D n m m USE TYPE "E", "F" AND "G" GRATES UNLESS OTHERWISE INDICATED. W Q Z LL = 2 O D Cilj , I 1�2" 1�2" W Q Z ,� L� p n 1 8 3 10 9 4 1 0 2 7 4 2 6 z
^ll = = D m „ w Q LL = 704.333.0325
Z D B USE BRICK OR CONCRETE BLOCK WHICH COMPLIES WITH THE REQUIREMENTS < V Q O .. D 3' I- (� Q O ,. m D 24 5 14 15 7 1 5 3 11 7 4 1 2 U Q p
C cm z> I m z _ _ _ _ _ _ _ Q cs WWW.LANDDESIGN.COM
m N p O ---- 8" 8" = OF SECTION 840 of THE STANDARD SPECIFICATIONS. _ Z r-I m N p O \ 1 , / < = H Z ~ = O O O 30" 8 21 21 11 22 5 16 11 7 17 Q H
MIN. IF REINFORCED CONCRETE PIPE IS SET IN BOTTOM SLAB OF BOX, ADD TO SLAB W Z,.., -u r -T1 \ j / W Z ,.4 -v r m „ � = Z W NC ENG. FIRM LICENSE # C-0658
m O F-I �30D AS SHOWN ON STD. NO. 840.00. O LL J O O ,_, l i O w O J O , , 36 11 28 29 15 30 7 22 16 10 23 O m LL O J
C7 = Z FOR 8'-0" IN HEIGHT OR LESS, USE 8" WALL. OVER 8'-0" IN HEIGHT, USE O O O Q C? _ Z in CD in w C O F-I Q 0 m Z rr O f-I Q
• D MIN. 2 R _ w R _ W s'-o" O 2 42 15 37 39 20 39 10 28 22 13 30 O w cc
D . , , 12" WALL TO 6'-0" FROM TOP OF WALL AND B" WALL FOR THE REMAINING Z . 1_1 D D D j o � U z , F-1 : D D p „ - - - z I --I
o:; ° .':v::. :v:; W-0". QUANTITIES TO BE ADJUSTED ACCORDINGLY. = Qa = Qa PLAN > D 48 49 26 50 28 17 38 �,>
�'-' CM
PLAN X T CONSTRUCT WITH PIPE CROWNS MATCHING. EL p fA ~ co M LL� N CD a ~ fA ~ - - - - - - - - 54" 60 33 62 36 21 47 ,r a Q
O T LL, O ¢ ¢ CURB AND GUTTER WITH CATCH BASIN ON STEEP GRADES W O W
Z SECTION X-X CHAMFER ALL EXPOSED CORNERS 1". Z m j m 6011 73 40 75 44 26 56 r o
TOP ELEVATION DRAWING NOT TO SCALE.
o a o TOP ELEVATION
,� w - - - - - - - - 6611 87 48 89 54 32 67
111 EXPANSION JOINT
w M ° USE ON FLAT GRADES 2% AND UNDER 72" 102 57 104 64 38 78
_ _ _ _mp,
- - - - FRAME GRATE AND HOOD TOP ELEVATION NOTE: 4 X D N
SEE STD.NO. 840.03 STEPS - STD. NO. 840.66 I C FOR CALCULATION PURPOSES
3'-0" 7
3'-0" DEPRESSED GUTTER LINE ~ - - - CLASS 'B' RIP RAP = 100 LBS. /FT3 W
STEPS STD. N0. 840.66 `S EXPANSION JOINT co 0 - - - - - - 3 J
_ - - - - �- -l_ m
m = c TOP ELEVATION PLAN OF TOP SLAB SECTION S-S CLASS I RIP RAP = 105 LBS. /FT
H
z - g" A o z ELEVATION o In z 2 x D o 0
8 g E W Z W NORMAL CURB AND GUTTER ON LIGHT GRADES WZ wWE CD
(/� oZ ~ N TOP ELEVATION NORMAL GUTTER LINE z ~ O D z CL
H 2 _ G Iti N �"� 2 OR L Iti N m
CL
N U) mg C MIN. Q m d N 8" E #B „W„ BARS „ 6„ Q a Q
SECTION Y-Y 8' - (/I #4 BAR EXPANSION JOINT m (/) A
D MIN. D MIN. D MIN. 0 D " 6" 0 D PLAN 0 H
n USE ON GRADES OVER 2A C
„
m C7 z = - _ (7 z @3 EQUAL SPACES - a _ - M z a
RISER HT.
v VARIES 0 C: EL > 0 � � 0 C! ELo .0 v 0
C y _- - .. H C C y 10" MAX 6'-0" Ir H C y D SLOPE 17�:1 OR FLATTER
0 6"MIN. : o .' :o:: ° :v:: ° .' :o:: y 0 a -ch. (� 0 EXPANSION JOINT 0 a� 0 0 Q
J- 1'-0' NOT A CERTIFIED DOCUMENT AS TO THE
_ T o �o o Z 0 _ _ _ #4 BARS "U" 6" DEPRESSED GUTTER LINE Z V = a z =
v �H 8' T SECTION J-J 6' MIN. o '. �'. '.'.o '... -'.6 •`�.•'.'. '• ...-'. Q v 11"z" '� Q F -1 v Q ORIGINAL BUT ONLY TO THE REVISIONS.
MIN. WHERE30"TO36"PIPE IS USED T -0 m ELEVATION H
mD E T SECTION M-M 3 SEE NOTE CO W D fD Y• N D CD a
N I VJIIERE42"T054"PIPE IS USED = m N SECTION R-R DOWEL NORMAL CURB AND GUT TER ON STEEP GRADES = 0 a * D 1 _ C THIS DOCUMENT WAS ORIGINALLY ISSUED '
H
H Z RISER HT. WHERE30"T038"PIPE IS USED In ♦C 1„1 z O Z H 2 O AND SEALED BY KRISTOPHER W. ROWE, P.E.
Z G7 VARIES E J m Z G7 MINIMUM DIMENSIONS AND QUANTITIES FOR BRICK CATCH BASIN(BASED ON MIN. HEIGHT, H, WITH NO RISER)* J W m w J C LICENSE #32666 ON 07/02/19 FOR PLANS
�" DIMENSIONS OF BOX AND PIPE TOP SLAB CU.YDS. CONC. IN BOX BRICK MASONRY DEDUCTIONS
TI cs DIMENSIONS TOTAL ONE PIPE z m T PLAN z O /DATED 06/28/2019. THIS DOCUMENT IS ONLY
p - - - _ _ _ _ - - - I g Z O PIPE SPAN WIDTH WIDTH SPAN MIN. HEIGHT BARS-U BARS-V BEAR TOTAL TOP BOTTOM TOTAL BRICK YSNA. BRICK AND Z O O Z � l`
m , M _ _ M Lu m D A B C G H E F NO. LENGTH NO. LENGTH NO. LENGTH LBS. SLAB SLAB CONC. IN WALLS CONCRETE C.M. R.C. W C GEOTEXTILE w CERTIFIED AS TO THE REVISIONS INDICATED,
I i A 12" 3'-0" 2'-2" -- -- 2'-9" -- -- -- -- -- -- -- -- -- -- 0.281 0.281 0.883 1.164 0.020 0.042 Ilrl BY REVISION CLOUD UNDER "LOW DENSITY
15" 3'-0" 2'-2" 3'-0" 0.281 0.281 0.963 1.244 0.031 0.047 r SECTION A -A 0 RTAP".
--- 8' " I ¢ , 18" 3'-0" 2'-2" 3'-3" 0.281 0.281 1.043 1.324 0.044 0.065 m T 114 1
24" 3'-0" 2'-2" 3'-9" 0.281 0.281 1.204 1.485 0.078 0.12 1 -1PIPE OUTLET WITH DITCH :3DALE C. STEWART 07/02/2021 L
I 30" 0 W-" 2'-2" 3'-4" 4' 3" 1'-2" 4'-4" 4 1'-6" 3 4'-1" 3 4'-1" 45 0.147 0.374 0.521 1.606 2.217 10.122 0.184
_ �!
36" 3'-0" 2'-2" 3'-10" 4'-9" 1' 8" 4' 4" 4 2'-0" 4 4'-1" 3 4'-1" 49 0.187 0.415 0.602 1.914 2.51s 0.176 0.261 H= RIP RAP TO TOP OF PIPE (MAX. H = D + T) GEOTEXTILE
WHERE 42" TO 54" PIPE IS USED 42" 3'-0" 2'-2" 4'-5" 5-3' 1'-5" 3'-6" 4 1'-9" 3 3'-3" 3 3'-3" 38 0.135 0.373 0.508 2.152 2.660 0.240 0.371 CLASS I RIP RAP, UNLESS OTHERWISE SHOWN ON PLANS
48" 3'-0" 2'-2" 5'-0" 5'-9" 2'-0" 3'-6" 4 2'-6" 4 3'-3" 3 3'-3" 41 0.173 0.410 0.583 2.a15 2.998 0.313 0.a77 SECTION B-B KEY MAP
SHEET 1 OF 2 DETAIL SHOWING METHOD SHEET 1 OF 2 SHEET 2 OF 2 54" 3'-0" 2'-2" 5'-7" 6'-3" 2'-7" 3'-6" 4 3'-0" 6 3'-3' 3 3'-3" 47 0.211 0.448 0.659 2.806 3.465 0.396 0.595 T= 12" CLASS 'B' RIP RAP, UNLESS OTHERWISE SHOWN ON PLANS
p SHEET 2 OF 2 SHpEET 1 OF 1 PIPE OUTLET WITHOUT DITCH SHEET 1 OF 1
840.01 OF RISER CONSTRUCTION PLAN PLAN 840.01 840.01 * RISER HAS .321 CUBIC YARDS OF BRICK MASONRY PER FOOT HEIGHT 840.01 876.02 876.02
I NOTES: W2
1. CLASS OR MEDIAN SIZE OF RIPRAP AND LENGTH, WIDTH AND DEPTH OF APRON END OF FLARED SECTION
v Z C7 z TO BE DESIGNED BY THE ENGINEER.
v m CD
2� " 0 } v 2" WEEP HOLES GENERAL NOTES: O } 2. REFER TO THE CHARLOTTE MECKLENBURG STORM WATER DESIGN MANUAL FOR
< . Q < . Q RIPRAP APRON DESIGN STANDARDS. I
Z DETAIL SHOWING TYPES OF GRATES 2'-113/4" Q I --I z �' USE CLASS "B" CONCRETE THROUGHOUT. Q I SEAL
D r0-I p USE ACCORDING TO WATER FLOW. 1 � 1f Z = U D IOI O 700 PROVIDE ALL DROP INLETS OVER 3'-G" IN DEPTH WITH STEPS 12" Z o~C = U 3. RIPRAP SHOULD EXTEND UP BOTH SIDES OF THE APRON AND AROUND THE END / t
m O m cl) I B LL J d F-' Z m O m � ml ON CENTER. USE STEPS WHICH COMPLY WITH STD. DRAWING 840.66. W J 2L ,O-, Z OF THE PIPE OR CULVERT AT THE DISCHARGE OUTLET AT A MAXIMUM SLOPE OF / 't
Z � = D O O O = F-I Z = D OPTIONAL CONSTRUCTION - MONOLITHIC POUR 2" KEYWAY OR #4 BAR DOWELS AT O O O = 2:1 AND A HEIGHT NOT LESS THAN TWO THIRDS THE PIPE DIAMETER OR ! t
TTZ „ (,� 12" CENTERS AS DIRECTED BY THE ENGINEER. C Z CULVERT HEIGHT.
_ D D m TYPE rrGrr TYPE rrErr TYPE nF" A A „ T T w Q Q LL = = O D n m X I X w Q w= :.,. % ®��
Z 1 I9�8" H U O C7 - z I USE FORMS FOR THE CONSTRUCTION OF THE BOTTOM SLAB. I- () 0 O �, / off® a2� C��
= O p O Q " N O - 1 IF REINFORCED CONCRETE PIPE IS SET IN BOTTOM SLAB OF BOX, ADD TO SLAB `s I- f-1 4. THERE SHALL BE NO OVERFLOW FROM THE END OF THE APRON TO THE % °��° ® O
Z -0 �T _ ~ Z W Z = O I -I AS SHOWN ON STD. NO. 840.00. = Z W SURFACE OF THE RECEIVING CHANNEL. THE AREA TO BE PAVED OR RIPRAPPED �' G �7F° �® ®j
O �rI O w O J Lj O ,r_, - - - - - -I- - - - - O LL O J SHALL BE UNDERCUT SO THAT THE INVERT OF THE APRON SHALL BE AT THE ®° c�0
C7 _ Z 7 rr COO C7 2 Z I CONSTRUCT WITH PIPE CROWNS MATCHING. 0 O U3 2 SAME GRADE (FLUSH) WITH THE SURFACE OF THE RECEIVING CHANNEL. THE
D D WATER FLOW SAG WATER FLOW r I 9/S Z r 1 D D - - I SEE STANDARD DRAWING 840.25 FOR ATTACHMENT OF FRAMES AND GRATES NOT SHOWN. Z , H APRON SHALL HAVE A CUTOFF OR TOE WALL AT THE DOWNSTREAM END. _®� .py
�I>-I > INSTALL 2" WEEPHOLES AS DIRECTED BY THE ENGINEER. �,>9 o B B * �� 8"1�3 e
G7I--I - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - EL 0 Cn r INSTALL STONE DRAINS, OF A MINIMUM OF 1 CUBIC FOOT OF NO. 70M STONE IN A d p 5. THE WIDTH OF THE END OF THE APRON SHALL BE EQUAL TO THE BOTTOM o : • �e
Z 1� „ r 0 Z I POROUS FABRIC BAG OR WRAP, AT EACH WEEP HOLE OR AS DIRECTED BY THE ENGINEER. r WIDTH OF THE RECEIVING CHANNEL. MAXIMUM TAPER TO RECEIVING CHANNEL 5:1 am
B 1 r'L rr I CHAMFER ALL EXPOSED CORNERS 1". ® pz a'
I 1 6. ALL SUBGRADE FOR STRUCTURE TO BE COMPACTED TO 95% OR GREATER. °..,! b' NO °° cr
Y 1 DRAWING NOT TO SCALE. NEW.
s���� ° ° • ° ° ° ®� ®®`
- - - - - - - - - - - - - - - - - - - - - - - PLAN 7. THE PLACING OF FILL, EITHER LOOSE OR COMPACTED IN THE RECEIVING
L_ 1 �" �, _`3'8rr CHANNEL SHALL NOT BE ALLOWED. END F'APRQN 111,e`®
r� � WITH GRATE &FRAME REMOVED
SECTION B-B 8. NO BENDS OR CURVES IN THE HORIZONTAL ALIGNMENT OF THE APRON
WILL BE PERMITTED. PLAN
----------------------------•------
�-I 1 � rr 2 � rr I BRICK COPING INCIDENTAL
O m m 1 L C 0 '-I ITI ( ) C 9. FILTER FABRIC SHALL BE INSTALLED ON COMPACTED SUBGRADE PRIOR TO - - 11\1111111///
WATER FLOW -� SAG E WATER FLOW �- p O Q Z TOP ELEVATION O PLACEMENT OF RIP RAP. ��� C1�ROr'i�
C r SECTION A -A LL = m O r STD. 840.16 FRAME v w LLl ��
,Oj1 m CD = Z F-I & GRATE C.7 J 10. ANY DISTURBED AREA FROM END OF APRON TO RECIEVING CHANNEL o z SLOPE
2 rr n U = #4 BAR Iti
Z 1 C% N Z Z W MUST BE STABILIZED. IIMI�
O rr rr n n F-I 0 N
TYPE F TYPE E TYPE G TYPE - E Q _ I 6/I A 6. HCL
Z O > 9 Q C) m g" B 6" N d USE USDA NOMOGRAPH FROM NC SEDIMENT AND EROSION CONTROL MANUAL OR - I 1' MIN. _
w > Mam
D RAISED FLOW ARROW „ 0 D 0 CHARLOTTE MECKLENBURG STORM WATER DESIGN MANUAL FOR DESIGN DATA. '' MIN I - 988
Dz Q' " 23/ .� 0 = m z x x 1'-6• -
z -1 v RAISED FLOW ARROW 2�" 16 HIGH N Q O o FILTER FABRIC LAP I -
�'1 I '- c v
Dm o %g" HIGH '1 O p _ Q W z wO> I I p ? OUTLET La w1 w2 *T H ELEVATIONCIF NEEDED) ��Q p 0 _ B" 0 FES-132 28.7' 36.2' 7.5' 18" 2' 4iI•�v�r�s' Q I Q Ir1:FES-161, FES-186, FES-112 13' 15' 6' 10" 2' //�///11�1'rrR
� '° DOWEL cn LU
D Z � 11/21 r \ U 1 Y2 T Cn Z H N W HW-144 15' 18.5' 3.75' 18" 1' NATURAL GRADE 07/02/2021
z c� /8rr a O r _ _ O ~ F-1 in SEE NOTE DOWEL(SEE NOTE) MAX. PIPE THIS SIDE _ N
= 2 w 1 ccn m r �' SECTION X-X SECTION Y-Y J Z T HW-143 14' 16' g' 18 1' MI
''"``'`"' •• RIP RAP PROJECT
W •9 3 rr J m O 18" RCP 10, 11.5' 4.5' :,� ,.;.c:j: =i :•. _
O TI O rr 1 f.7 O �'I 0 101, 1' H I . -� s:Yv�..���. . I -
0 7-
1/g" r iv2"R rr w C DIMENSIONS AND QUANTITIES FOR DROP INLET(BASED ON MIN. HEIGHT, H) W 15" RCP 10, 11.25' 3.75' 10"
1--1 O 77 11/2rr 13/4'1-1 1 - r rr Y8 � O DIMENSIONS of BOX & PIPE CUBIC YARDS DEDUCTIONS FOR � T (THICKNESS)=10- MIN. TWIN LAKES
z 2'-113/4" 2 -11�4 PIPE SPAN WIDTH MIN. HEIGHT CONC. IN BOX ONE PIPE * d50 (see fig 8.06 aft "NC SEDIMENT AND EROSION CONTROL MANUAL"
n „ " BOTTOM WALL PER TOTAL dmax = 1.5 x d50
11/2 1 +'` I I f-•{ %8 1 �Q D A B H SLAB FT. HT. Foq MINIMUM MCRETE C.M. R.C. T = 1.5 X dmax. LAYER OF FILTER FABRIC
II••� NEI.NT � NOTE:
==1 . 1 �2 rr 12" 3'-0" 2'-0" 2'-0" 0.222 0.222 0.592 0.015 0.026 T(min.)=10" MINIMUM H=2/3 PIPE DIAMETER
15" 2'-3"
13/4 r' SECTION A -A � T8rr 181, 2 -6' 0.0.764803 0.033 0.049 0.023 0.036 FES-154, FES-106 33.2' 42.2' 6' 18" 2' SECTION B-B
SHEET 2 OF 2 TYPE - F SECTION A -A SHEET 2 OF 2 SHEET 1 OF 1 24 3'-O" 0.925 0.00.085 92 SHEET 1 OF 1
TYPE G � 30" 3'-0" 2'-0" 3'-6" 0.222 0.222 0.925 0.092 0.127
840.03 840.03 840.14 1 840.14 RIPRAP APRON AT PIPE 0 UTFALLS TWIN LAKES FARMS, LLC
OTHER THAN AT SWIM UNION COUNTY, NC
v Z v z v z
112rr 3'-6„ o11 } �a o} v_ �>_
<• rr ~Q <. ~Q <� NOTES: HQ
�c~n o 1" DEPRESSION 'N rr 11� rr Z~= �0cf) 0 " 0�3 70~ z 0�3
rr I O O 15,/8 „I1 1 r�/g 1_1 ,� U D I_ I 0 O „ 6" WALL 8" WALL 8 WALL m = = o D IOy O W1 FT. * THIS PRECAST ENDWALL MAY BE USED FOR THE FOLLOWING Z C = U
O 1 r 1 r n I I C LL J I_ I O 6 WALL O r TI fn D 6" Iti p (7
m Z 2 1 - 7� 1 - 7� �\ �' r � a- Z m Z = W J d ~ Z m O � STANDARDS: 838.01 , 838.11 , 838.21 , 838.27, 838.33, LL J 1--1
--1 D 8 8 I H 1 0 0 0= I -I 0 0 0 2 Z 2 D p p co= z LANDDESIGN PROJ.#
838.39, 838.51, 838.57, 838.63 AND 838.69. co
= O D n, ; r _ I I W Q Q LL = _ m D D m -� `� 4" 4" W Q Q LL = = O D C�,m,-, INSTALL PRECAST ENDWALLS WITH WINGS AND PAY W Q Q u- = 1017398
= mo = = G _ E I E I-UF- =zO 6"-� 6 I I 8 8 < F- mz� * I-UCCO
Z r-I � �1 N \ �G O fD I _ ~ Z W Z m0 =Haw Z = O O ' -0" ' -O USE 4000CPSIDCONCRETEH SPECIFICATION SECTION 838. = C Z W
nOO r r I co I- 1 _ O J I• I O H ;.;::A :..:: :.:::..:::.................•... .'.::...�:::...� ::: a'.::..�..::....':::' :.:' :.::'':..":..' :..:'':.:' :.:' ' :.: ':!:.: '�:.: co LL O J ~ O r PROVIDE ALL REINFORCING STEEL WHICH MEETS ASTM A615 N LL O J
ao'_' c? �- O --- --� _ �---------- - °Cp'-'Q C)Oaoz :i:.::;;:.::.:.:: +;:.. �....•; :•::::..:..:.::. �o'-'Q copal -I 3 o Q REVISION / ISSUANCE
2 Z N I p O C 2 lj p Ln C 2 Z - FOR GRADE 60 AND WELDED WIRE FABRIC CONFORMING p CD
• D D D N o 1 Z .'-' D D D Z •' ' D D D 0 I TO ASTM A185 WITH 2" MIN. CLEARANCE. Z. I-r C
<O 0 I N La r�I <O ° L * + •L + I L �I �• LA- 1-4 <H H2 I H2 * PLACE LIFT HOLES OR PINS IN ACCORDANCE WITH N a H NO. DESCRIPTION DATE
O _ I T 0 W O O O CS/RCP OSHA STANDARD 1926.704. * Lu 0
Z SECTION G- G N I I u r 0 Z 0 Z H1 H1 I PIPE To BE GROUTED INTO HEADWALL AT JOB SITE BY T O 1 INITIAL SUBMITTAL 8/29/18
�\ �-B► I I CONTRACTOR
1'-41" 1' 4 F-� PART SECTION PART SECTION PART SECTION PART SECTION - * ALL ELEMENTS PRECAST TO MEET ASTM C913. LAND DEVELOPMENT
m T PLAN OF FRAME 6" WALL 6" WALL WITH 4" LIP 8" WALL 8" WALL WITH 4" LIP _ _ _ _ _ _ 1:-D., � WELDED WIRE FABRIC MAY BE SUBSTITUTED FOR REBAR 2 SUBMITTAL 12/21/18
AS LONG AS THE SAME AREA of STEEL IS PROVIDED.
1'-758" 1'-78rr CAST IRON T CHAMFER ALL CORNERS 1" oR HAVE A RADIUS OF 1". LAND DEVELOPMENT
TABLES OF QUANTITIES FOR PIPE SET IN PAD 8" O.C. (TYP.) 3 SUBMITTAL 02/04/19
C 0 N 8" O.C.(TYP.) 6' REFER TO CHART
n REFER TO CHART
C.Y. QUANTITIES O FOR BAR SIZE FOR BAR SIZE NOTE: THE MINIMUM BAR SIZE SHALL BE #5 BARS LU 4 LAND DEVELOPMENT 02/21/19
mom PLAN OF GRATING co �+ m PIPE "w" "wiIf "T" wllEx L Is C co m
m 'O Z 0 O Z SIDE AT B CTS.THE CONTRACTOR WILL HAVE THE OPTION SUBMITTAL
1� p 2'_gi/'r CAST IRON 0 4 Q 0 p L m a ELEVATION TO INCREASE THIS BAR SIZE AS NEEDED. a
D DIM DIM DIM
12" 16" 20" Z
e. ... ,o: p. .. • .o. r
LL o LAND DEVELOPMENT
c7 O c> r� c7 3' O1 5 SUBMITTAL 05/07/19
" 1 -1T8 0'-7Tg" 0'-2" 0.005 0.007 0.008 " CL v m N m � Z Lu 6 LAND DEVELOPMENT 06/04/19
� F-1
wr= 1z-1C � � Z2
e, v .. >.
12 ' " z Q H r� O z �
RI Q Z N 700 I T 0'_2" W w ENDWALL DIMENSIONS W a
p (n 1„ n 1„ 1 n a d, r✓7 Wi „ o SUBMITTAL
/8 1/B /g /g C 15 1 -3' 0'-91/g' 0.006 0.008 0.010 _
D 0 Z RI D 0 co F n D W2 (FT') FT. MINIMUM MIN. /MAX. MIN. /MAX. MIN. /MAX. MIN. /MAX. MIN. /MAX. 0 L1J LAND DEVELOPMENT
p W w %-1 z w „ „ a co -H C z H_ 7 06/28/19
p 1" 1" 1" 1" 0 a) m v 18" 1'-51/4 0'-10�'g" 0-2 0.007 0.010 0.012 0 m y Z 0 PIPE DIA. BAR SIZE HII(FT.) H2(FT.) D (FT.) W1 W2 0 LLI N SUBMITTAL
C! �i 3' 3 " 2'-34" C O m D 1.0 #5 @ 8" 1.25/2.00 2.00/3.75 1.25/1.75 3.00/3.75 5.50/6.00 Q
33 Q PART SECTION Q W 8 MIXED DENSITY RTAP 12/14/20
CD 0 j�/ " �2pl 0 = R W v P4" 1'-834V-0%8" 0'-3" 0.011 0.014 0.018 0 W C5 -4 = v = a 0 �iRI 16�8" 1/ rr /8" / rr z IL 0 N a OF END ELEVATION z H Q ni m I I fO 1.25 #5 @ 8" 1.25/2.00 3.00/3.75 1 .25/2.00 3.50/3.75 6.50/6.75 z Z =
Op I 3 I B - I rr rr I 6 y m " 2'_Q1/4" V-2:4" 0'-31,/2" 0.014 0.018 0.023 IQ- W Z p 3I v 1.50 #5 @ 8" 1.25/2.00 3.00/4.25 1.50/2.50 3.50/3.75 6.50/6.75 I- ~
O 3/ " 3/4 3/ C RID 30 N N rH m D O V c LOW DENSITY RTAP 07/02/21
D SECTION H-H W 0 a -i
0 I 3r-2" I 2'-2" 1 m J O 'I 36" 2'-3," V-54t" 0'-4" 0.017 0.023 0.025 = Z m m 2.0 #5 @ 8" 1.50/2.50 4.00/4.75 1.75/2.50 4.00/4.25 7.50/8.25 = N
Z _C VA CO > z uI O Z Z D 2.5 #5 @ 8" 2.50/3.50 4.00/6.00 2.00/3.00 4.50/5.50 10.00/11.50 c4 y w
O O J 1"� C O p V-7" 0'-51/4" 0.025 J �% p 3.0 #5 @ 8" 3.00/3.50 5.00/6.00 2.75/3.50 5.25/5.75 11.50/11.75 J Q C7
D -n - - C3 r-1 -n 42" 2' 71/8 0.030 0.038 C7 Q O m I CS V Z
D O� 2%8" 21/810 �� z d '� m O Z O o O 6 Q 3.5 #5 @ 8" 3.25/4.50 6.00/6.75 3.25/3.50 6.00/6.75 12.00/13.25 z UJ co DESIGNED BY: RB
00 m 3r 13 n N N Zr-i n N N LU o p N 48" 2'-104'g" 1'48 4" 0'-5-4" 0.028 0.038 0.047 w UL (D \ W d
4.0 #5 @ 8' 3.50/4.50 6.50/7.00 3.25/3.50 6.50/6.75 13.00/13.25 x DRAWN BY: RB
0 N C 1 1'-101i2" 0'-61/4" 0.035 0.047 0.058 PLAN 4.5 #5 @ 8" 4.00/5.00 6.50/8.50 3.25/4.00 7.00/9.25 13.50/15.75 LL CHECKED BY: KWR
O 54" 3'-2/g"
6" 2'-6'r C GENERAL NOTES: 5.0 #5 @ 8" 4.50/5.00 7.00/8.50 3.25/4.00 7.25/9.25 13.75/15.75
3'
1 USE THIS STANDARD WITH ALL DRAINAGE STRUCTURES " 1 0.071 SCALE NORTH
U1 LL 60 3 5348' 2'-0/q" 0'-644" 0.042 0.056 5.5 #5 @ 8" 4.50/5.00 7.50/8.50 3.25/4.00 7.25/9.25 14.00115.75
USING REINFORCED CONCRETE PIPE SET IN BASE SLAB.
SECTION E - E SECTION F - F 66" 3'-9" 2'-21/q" 0'-71/4" 0.050 0.067 0.084 6.0 #5 @ 8" 4.50/5.00 7.50/8.50 3.25/4.00 7.75/9.25 14.75/16.75
SHEET 1 OF 1 SHEET 1 OF 1 SHEET 1 OF 1 72" 4'-01,5 2'-33i4" 0'-73/4" 0.059 0.078 0.098 SHEET 1 OF 1 SHEET 1 OF 1 SHEET 1 OF 1 VERT: NTS
840.16 840.16 840.00 840.00 838.80 1838.80 HORZ: NTS
(NOT TO SCALE)
SHEET TITLE
STORM DRAINAGE DETAILS
SHEET NUMBER
C420
7/12/2021 3:04 PM MEGAN SCHULTZ NA 2017\1017398\CAD\CONSTRUCTION DOCUMENTS\17398 DTL-STORM.DWG ORIGINAL SHEET SIZE: 24" X 36"

12"(30cm)
4"(10cm)
611 611
(15cm) (15cm) 411(10cm)
0
4"-611
(10-15cm)
6'
(15cm
611
(15cm)
0
1
i
CRITICAL POINTS
A. Overlaps and Seams
B. Projected Water Line
C. Channel Bottom/Side Slope Vertices
A
B
C
Drawing Not To Scale
I— NORTH
0 �' 0 `�t� �® AMERICAN
GREEN®
5401 St. Wendel - Cynthiana Rd. PH: 800-722-2040
Poseyville, IN 47633 www.nagreen.com
A
B C
211-511 -
(5-12.5cm)
NOTES:
*Horizontal staple spacing should be
altered if necessary to allow staples to
secure the critical points along the channel
surface.
**In loose soil conditions, the use of staple
or stake lengths greater than 6"(15cm) may
be necessary to properly secure the
RECPs.
Disclaimer:
The information presented herein is general design information only. For specific applications,
consult an independent professional for further design guidance.
Drawn on: 3-16-11
CHANNEL
INSTALLATION
DETAIL
1. Prepare soil before installing rolled
erosion control products (RECPs),
including any necessary application of
lime, fertilizer, and seed.
2. Begin at the top of the channel by
anchoring the RECPs in a 6"(15cm)
deep X 6"(15cm) wide trench with
approximately 12"(30cm) of RECPs
extended beyond the up -slope portion
of the trench. Use ShoreMax mat at the
channel/culvert outlet as supplemental
scour protection as needed. Anchor the
RECPs with a row of staples/stakes
approximately 12"(30cm) apart in the
bottom of the trench. Backfill and
compact the trench after stapling. Apply
seed to the compacted soil and fold the
remaining 12"(30cm) portion of RECPs
back over the seed and compacted soil.
Secure RECPs over compacted soil
with a row of staples/stakes spaced
approximately 12" apart across the
width of the RECPs.
3. Roll center RECPs in direction of water
flow in bottom of channel. RECPs will
unroll with appropriate side against the
soil surface. All RECPs must be
securely fastened to soil surface by
placing staples/stakes in appropriate
locations as shown in the staple pattern
guide.
4. Place consecutive RECPs end -over -end
(Shingle style) with a 4%6" overlap. Use
a double row of staples staggered 4"
apart and 4" on center to secure
RECPs.
5. Full length edge of RECPs at top of side
slopes must be anchored with a row of
staples/stakes approximately 12"(30cm)
apart in a 6"(15cm) deep X 6"(15cm)
wide trench. Backfill and compact the
trench after stapling.
6. Adjacent RECPs must be overlapped
approximately 2%5" (5-12.5cm)
(Depending on RECPs type) and
stapled.
7.In high flow channel applications a
staple check slot is recommended at 30
to 40 foot (9 -12m) intervals. Use a
double row of staples staggered
4"(10cm) apart and 4"(10cm) on center
over entire width of the channel.
8. The terminal end of the RECPs must be
anchored with a row of staples/stakes
approximately 12" (30cm) apart in a
6"(15cm) deep X 6"(15cm) wide trench.
Backfill and compact the trench after
stapling.
STAPLE
PATTERN GUIDE
(5-12.5cm)
(5-12.5cm) (5-12.5cm)
(5-12.5cm)
3
3'
(0.9m)
(0.9m)
6'
6'
(1.8m)
(1.8m)
4:1 Slopes (A)
3.3'
3.3'
(lm)
1.6' (lm)
(O.Sm)
� 3:1 Slopes (B)
3.3'
(lm)
2:1 Slopes (C)
•
1:1 & Steeper Slopes (D)
0.7 Staples per SQ.YD.
1.15 Staples per
SQ.YD.
Q Medium/High Flow Channel (D)
0 High Flow Channel And
�
�
�
Shoreline (E)
2"-5"
2"-5"
2"-S
(5-12.5cm)
(5-12.5cm)
(5-12.5cm)
(5-12.5cm)
2'
2'
2' 10"
4 (0.6m)
4'
(0.6m)
4'
(0.6m) (25cm)
IiIiIiJ
0 O
0 O
(1.2m)
(1.2m)
(1.2m)
1
(O.5m)
20"(0.5m)
20"(0.5m)
C(0"(25cm)
3.3'
3.3'
(�)
0 0 (�5
0 0 0
0 0 0(1i")0
1.7 Staples per SQ.YD.
3.4 Staples per SQ.YD.
3.75 Staples per SQ.YD.
NOTES:
* Use ECMDS® for more accurate
staple pattern selection.
NORTH
Disclaimer:
Tenses®
AMERICAN
The information presented herein is general design information
only. For specific applications,
GREENO
consult an independent professional for further design guidance.
5401 St. Wendel - Cynthiana Rd.
PH: 800-722-2040
Drawing Not To Scale
Poseyville, IN 47633
www.nagreen.com
Drawn on: 3-16-11
� GRp,DE
10-YR STORM NPt�RP
NATURAL GRADE ELEVATION -
6" FREEBOARD
1.5' MIN -I j lI 2'-3' WIDTH
DEPTH
I -
NOTES:
1. SWALES SHALL HAVE A MAXIMUM OF 5.0% SLOPE OR FOLLOW NATURAL GRADE. SIDE SLOPES MUST BE 5:1 OR FLATTER.
2. CONTRACTOR SHALL GRADE SWALES AS SHOWN ON PLANS AND ADJUST AS NEEDED BASED ON FIELD CONDITIONS
MEETING THE ABOVE CRITERIA.
3. SWALES SHALL BE STABILIZED IMMEDIATELY UPON COMPLETION.
3.1. SWALES WITH NATURAL SLOPES GREATER THAN 5.0% SHALL BE STABILIZED USING NORTH AMERICAN GREEN
ERONETTM SC2500 PERMANENT EROSION CONTROL BLANKET INSTALLED PER MANUFACTURES INSTRUCTIONS AND
SPECIFICATIONS USING STAPLE PATTERN E.
3.2. CONTRACTOR MAY USE A NORTH AMERICAN GREEN TEMPORARY EROSION CONTROL BLANKET FOR THE OTHER
SWALES PRIOR TO SEEDING, OR SWALES MAY BE SODDED.
STORMWATER SWALE
LandDesign-
223 NORTH GRAHAM STREET
CHARLOTTE, NC 28202
704.333.0325
WWW.LANDDESIGN.COM
NC ENG. FIRM LICENSE # C-0658
NOT A CERTIFIED DOCUMENT AS TO THE
ORIGINAL BUT ONLY TO THE REVISIONS.
THIS DOCUMENT WAS ORIGINALLY ISSUED
AND SEALED BY KRISTOPHER W. ROWE, P.E.
LICENSE #32666 ON 07/02/19 FOR PLANS
DATED 06/28/2019. THIS DOCUMENT IS ONLY
CERTIFIED AS TO THE REVISIONS INDICATEC
BY REVISION CLOUD UNDER "LOW DENSITY
RTAP".
DALE C. STEWART 07/02/2021
KEY MAP
SEAL
PROJECT
CA
N.
* � C-015 8 : * =
07/02/2021
TWIN LAKES
TWIN LAKES FARMS, LLC
UNION COUNTY, NC
LANDDESIGN PROJ.#
1017398
REVISION / ISSUANCE
NO.
DESCRIPTION
DATE
1
INITIAL SUBMITTAL
8/29/18
LAND DEVELOPMENT
2
12/21/18
SUBMITTAL
LAND DEVELOPMENT
3
02/04/19
SUBMITTAL
LAND DEVELOPMENT
4
02/21/19
SUBMITTAL
LAND DEVELOPMENT
5
05/07/19
SUBMITTAL
LAND DEVELOPMENT
6
06/04/19
SUBMITTAL
LAND DEVELOPMENT
7
06/28/19
SUBMITTAL
8
MIXED DENSITY RTAP
12/14/20
ALOW
DENSITY RTAP
07/02/21
DESIGNED BY: RB
DRAWN BY: RB
CHECKED BY: KWR
SCALE NORTH
VERT: NTS
HORZ: NTS
(NOT TO SCALE)
SHEET TITLE
SECTION
NTS
7/12/2021 3:04 PM MEGAN SCHULTZ NA 2017\1017398\CAD\CONSTRUCTION DOCUMENTS\17398 DTL-STORM.DWG ORIGINAL SHEET SIZE: 24" X 36"
STORM DRAINAGE DETAILS
SHEET NUMBER
C421