20161153 Ver 1_ Stormwater plan_20180119

C007 stimmel
LAINDMAPE ARCHITECTURE CIVIL ENGINEERING LAND PLANNING
HANKINS - VILLAGE POINT
'ROJECI SQUARE CD'S
15-226
SUBJECT Clemmons Town Center
Approved Stormwater Plans
'URPOSE For your use and distribution
FROM
Transmittal
DATE 1/19/2018
FRANSMITTALI[ 00025
VIA: Info Exchange
NAME
COMPANY
EMAIL
I PHONE
Kelway Howard
Stimmel Associates, P.A.
[e-mail]
336-723-1067
TO
NAME COMPANY I EMAIL IPHONE
Sue Homewood NCDENR W -S Regional Office [e-mail] [phone]
Sue, Brad Luckey asked that we send you these plans. Let us know if you
REMARKS need anything further.
Kelway
DESCRIPTION OF CONTENTS
QTY
DATED
TITLE
NOTES
1
1/10/2018
15-226 C-5.5 POND SPEC IFICATIONS.pdf
15-226 C-5.0 OVERALL SWM.pdf
15-226 C-5.1 POND PLAN.pdf
1
3/28/2017
1
9/28/2017
1
3/28/2017
15-226 C-5.2 POND PROFILES.pdf
1
3/28/2017
15-226 C-5.3 POND DETAILS.pdf
1
3/28/2017 15-226 C-5.4 POND DETAILS.pdf
1/19/2018 Clemmons Town Center (8).pdf
1
COPIES
Brad Luckey (Pilot Environmental, Inc)
Steven Hankins (Hankins Companies, LLC)

0-1
1;
LO
L0
N
N
a
0
N
N
A
x �x
( OFFSITE SIDEWALKS
U N MANAGED
PIN # 5883-95-4762
GIBRALTAR COMMERCIAL IV LLC.
D.B. 3071 PG. 1035
PB. 47 PG. 120
CLEMMONS VILLAGE PHASE 1
CLEMMONS TOWN CENTER LLC
• PHASE II _
SECOND REVISION
OPOND DRAINAGE
LI M ITS (TYP) ^
C-2
O
�
M ELM
all ®w►�-::-L=.
POND DRAINAGE 1
I I
L M ITS (TYP)
PIN #5883-95' 65 .00
PIN # 58$3 ���-7564.00 ''
GIBRALTAR COMMERCIAL IV LLC. GIBRALTAR COMMERCIAL IV LLC. ,
I ''' D.B. 3071 PG. 1035 I
I I TRACT 26 PB. 47 PG. 120 "
D.B. 3071 PG. 1035 TRACT 2A PB. 47 PG. 120 I
I I
�z ADDITIONAL PARKING
AREA: 9,148 SF (0.21 AC)
/ I I
B.U.A.: 5,227 SF (0.12 AC) I \ / - - Z 1
W (57.14%)
Un I DAIRI-0 i
/ SITE AREA: 76,709 SF 1.761 AC
B.U.A.: 50,137 SF (1.151 AC) I I I
�i (65.36%) I I I I
��
3 �j� PIN #5883-95-94
_2nAIPIQ II �i
a1g, MEMO &A
1D.B. 3183 •
G. 3842
M.
J
i
owd O�0° T r� \ll f/.' \ ROADS \_ _ ��` / ..:.::..: ....•'''►•'"00 so
/ �^ I ° T ° Fti `� I ��� db AREA: 59,242 SF (1.36 AC) --� 3 ::.:..... /
T �� FUTURE HOTEL SITE ,: �' `� ; \.�•;, \ `.•_ ( ) ...J
ASSUMED IMPERVIOUS B.U.A.: 41,382 SF 0.95 AC
o 0� FROM BACK OF CURB TO '.° .::': ' :.': (69.850
1
°� BACK OF CURB ON ALL
o o SIDES THE SITE AND
I �P ` �''• / / / X fog TBM CHISLED � ( I�
I SSM \ �OOo O� 0 INCLUDED IN THE SITE y \ / ;� ) SQU90
ARE IN CURB ,
°Oo 0 I ` BUA TOTAL.
0 N\ O
O m I I l I ° O 310' STREAM \ J ✓ , , I
FFEIR I 3 lI l -05- _-5; 5893 13 6
NEWBRIDGE BANK
�100' STREAM
onPOND ACCESS ROAD BUFFER DB. 2122 PG. 2869
J I
U
I y w
I
LD
o
I
\ v
I � I I / � < �►� FNM � ��. : r: �' 4• I �
•. P •5.4
/ -
I
O
I'
0
O 1
I
- I
a
IO
SITE � � c� I � 111 _ •� :�.`� -
I• I I I I -Z o Ooo � °� ° o °°°o< � / - / "' \_,� /� _-�;� • �,.� SITE AREA: 710,636.1 SF (16.314 AC) f
I �
I
STORMWATER MANAGEMENT NOTES
EXISTING B.U.A. REMOVED. 23,096 SF (0.53 AC)O 0
\\
PROPOSED B.U.A.: 327,094 SF (7.51 AC)I \ 1. DISTURBED AREA: 739,213 SF (16.97 AC, INCLUDES OFFSITE)
W WATERSHED: LOWER YADKIN WS -IV, 70% MAX B.U.A.
. 0 / j "?,h. INCREASE IN B.U.A: 313,998 SF (7.21 AC) z I I PIN 58 - 4-298 --
L�I a / ° Z' O O / r �Q \ FLOOD PLAIN: NONE
II ^ O°O WO O O // �;' (46.03%) J LUIHN FOUR INC _ o , SITE DRAIN TO 303(d) STREAM: NO
I 0° 1 DB. 2449 PG.1340 _ I SITE AREA: 710,636 SF (16.31 AC)
1 O0 ° ° -
° �' � � . / TOTAL POND DRAINAGE AREA: 765,287 SF 17.57 AC
l , O ° ° O 0 1 > / /;;•+: PIN # 5883=94-49 2 I \ JJh PREDEVELOPED CONDITIONS:
O O / � r'.• / :,.� . ;• ��� � I VILLAGE POINT LLC. 7 � �� � '1 EXISTING ON-SITE BUA= 23,087 SF 0.53 AC
/ �° ° ° I \ PART OF D.B. 2534 PG. 4440 1 L _ -- l� -,1 EXISTING BUA REMOVED= 23,087 SF (0.53 AC�
O I / ,� `:y z ' I NET REMAINING BUA= 0 SF (0.0 AC)
° o / / ZONED PB -S
l / O °� O � r_ •x, �.� W POST DEVELOPED CONDITIONS:
710,636.1 Sq. Feet W 'r 1 EXISTING ON-SITE BUA= 0 SF (0.0 AC)
16.314 Acres \ PROPOSED NEW SITE BUA= 327,106 SF (7.51 AC)
,I \ �P DAIRI-0 BUA= 50,137 SF 1.15 AC
j/
- ( )
ROADS BUA- 41,382 SF (0.95 AC)
PARKING ADDITION BUA= 5,227 SF (0.12 AC)
°O°�� O ° / �O �� .,'� • , II �/ PARCEL 1 BUA= 45,736SF 1.05 AC
PARCEL 2 BUA= 41,076 SF 0.94 AC
__✓ POND BUA= 22,200 SF 0.51 AC�
0
0 ° ° / J / < ( z 1
\ OFFSITE SIDEWALKS ON JESSE LANE= ,042 SF 0.02 AC)
_ c
/ ° �j° O ° O ;.. •'�, / / \ y TOTAL BUA= 533,906 SF (12.25 AC)
/ O O I I �� •� I I � _- � �/ / �� 1 I PROPOSED BUA BYPASSING POND (WALKS)= 1,042 SF (0.02 AC)
\ \ � 0 1 � � �__ _ ., • I .. 1 III _ _ � � o I I � o �
C
1 O ° O � �• I I / � N /" P I
IN NE
I
. .. - • LOAD��f7NE
L6ADIN0 _ NE
�1
I�
� I
PARCEL 1
SITE AREA: 65,693.9 SF (1.508 AC)
PROPOSED B.U.A.: 45,736 SF (1.05 AC \
I
o .
I � 2
� / / / / / 00 °
PIN
# 5893-04-2704 I I I I
VILLAGE POINT LLC. I f I
I
0 \ / /\ PART OF D.B. 2534 PG. 4440 J /
P.B.62 PG.131 LOT 3
3 ' i
ZONED PB -S
00� � 0 000
65,693.9 S Feet r
30 STREAM /
. � i
_ S q
oo° ° BurrER I I ' Acres
0 �° ° °o �°0 0 �:: ,,. •, POND DRAINAGE � �, I 1.508.,,.
I /
<> A<_0 LIMITS (TYP) I I
I I /
o° ° PROPOSED WET
o
c DETENTION POND
><,>
00 �0 00
�<
0' ° ° °�30' STREAM 100' STREA PARCEL 2 /
0 0 O oo \ ��
680 SF (1.347 AC)
� s j/ SITE AREA. 58,
j o 0000 0 OO O O°OO OO BUFFER // / \ _ \� �� PROPOSED B.U.A.: 41,076 SF (0.94 AC)
0_0 O° 0° O O �° ° 100' STREAM L �/ �\LP / I (70%)
/ 00 O°'°° 0000000000 BUFFER /� / \ �� 3
° L
0 o00Oo0
w°`.>P cO' '� v h� ° 0 O 0 ° o ///// \ \ \i \ P �• \ PIN # 5893-04-0489
^Q 4,h/o�C Qc� �o Oo 0 0 0 ° o j �/� //� /� / / / I VILLAGE POINT LLC.
/ �// �-
/ I PART OF D.B. 2534 PG. 4440
�� P N 5883 9 5175 / /� ro I P.B. 62 PG.131, LOT 2
0
D.B. 3122 P.G. 3896 / 3 / b I ZONED PB -S
,`
D.B. 3192 PG. 4328
\ 58,680.0 Sq. Feet
/ /��✓j \� // 1.347 Acres
CLEMMONS TOWN CENTER a /�
T.
P.B. 62A PG. EN39, ,LLCLOT 1 / \� r
PH
\ 41 / \ / `� \, \ INV. 815.14
/ C
/ % \ L
\ I
PEACE HAVEN ROAD
SITE
VICINITY MAP
KINNAMON ROAD
North
NOT TO SCALE
Gj'pN MUST CO
JNO U -r jT y PR TF�r T
FC 'h
J � �
BEFORE YOU DIG!
CALL 811 N.C. ONE -CALL CENTER
IT'S THE LAW!
SURVEY DISCLAIMER:
NET BUA TO POND= 532,864 SF (12.23 AC)
2. A BLANKET EASEMENT WILL BE GRANTED TO ALLOW THE VILLAGE OF CLEMMONS
ACCESS TO THE SITE FOR STORM DRAINAGE AND STORMWATER MANAGEMENT
INSPECTIONS OR MAINTENANCE.
3. THE MAXIMUM IMPERVIOUS AREA ALLOWED FOR THE POND IS 532,864 SF. ANY
ADDITIONAL IMPERVIOUS AREA OR DRAINAGE AREA WILL REQUIRE A REVISED.
STORMWATER PERMIT.
4. THE POND SHALL HAVE FULL DESIGN VOLUME AT THE COMPLETION OF THE
PROJECT. ANY SILT DUE TO CONSTRUCTION SHALL BE REMOVED PRIOR TO
AS -BUILT. _
THE BOUNDARY AND TOPOGRAPHIC
INFORMATION HEREIN IS FROM SURVEY
INFORMATION SUPPLIED BY:
SGROI LAND SURVEYING, PLLC
145 W. PARRIS AVE., SUITE 101
HIGH POINT, NC 27262 North
336-885-1366
ELEVATION DATUM IS NAVD88
I, Wilbur Christmas, P.E., to the best of my knowledge, certify that the permanent stormwater
management control(s) shown on this plan has been designed in accordance with stormwater
management quantity and stormwater management quality requirements of the Village of
Clemmons and the State of North Carolina, as applicable. I also certify that other applicable local,
state, and federal permits have been applied for and/or received.
Check other permits applied for and/or received, if applicable
X Erosion and Sediment Control permit (Winston-Salem/Forsyth County)
Floodplain Development permit (Winston-Salem/Forsyth County)
X 401 water quality certification (State of NC)
X 404 permit for work in waters/wetlands of the US (US Army Corps of Engineers)
Dam Safety permit (State of NC)
X Other: specify here DAM HAZARD DETERMINATION
Signature of licensed design professional4a/ "" t Date _3/27/17
STORMWATER NOTE:
1. THE GENERAL CONTRACTOR/DEVELOPER SHALL CONTACT THE
STORMWATER ADMINISTRATOR FOR AN INSPECTION OF THE
STORMWATER FEATURES PRIOR TO THE ISSUANCE OF THE
STORMWATER MANAGEMENT OCCUPANCY PERMIT.
50 0 50 100 150
SCALE: 1" = 50'
4V 000011111111111:1P
stimmel
LANDSCAPE ARCHITECTURE
CIVIL ENGINEERING
LAND PLANNING
601 N. TRADE STREET, SUITE 200
WINSTON-SALEM, NC 27101
P: 336.723.1067 F: 336.723.1069
www.stimmelpa.com
SEALS:
NCBEES CERT. NO.: C-1347
SEAL r' -
23552
3-2'T,17;*vo
- 111111110 -
PROJECT:
CLIENT:
CLEMMONS TC, LLC
16501 NORTHCROSS DRIVE
SUITE D
HUNTERSVILLE, NC
28078-5040
DRAWN: CYNIC
DATE: 1/31/2017
REVISIONS:
,3/27/2017 CITY/VILLAGE/OWNER COMMENTS
JOB. NO: 15-226
SHEET TITLE:
OVERALL
STORMWATER
MANAGEMENT
PLAN
SCALE: 111 =50'
SHEET NO.:
C�5mO
© STIMMEL ASSOCIATES, P.A

LO
I
0
s
0)
0
3
a
0
I
LO
LL
w,Ol
'j I prA ON
IL m
>v- RIP RAS OUTLET 7 �? I�w V �g5� /w w •�`�Tj K `ELEV. 79922.00..__..... I I a
PROTECTIO �_ow
NCDOT CLASS B
w
1
y
15'L X 17'W
W
O \ . W .WWWWW, w WWWWwW WWWWW�W W
J
<-> �• ���w:��� �% v v
24" DIP
NV: 775.75 J
O / RETAINING WALL
/ (DESIGN BY OTHERS)
%O O 4„ SOLID WALLED SCH. 40 PVC �' • N�
(/ O PIPES DISCHAR E TO HEADWALL.30
O T
—
�O
BUFFERTREAM �� / \ �� / /�/ �— •• L� / / I 1
/� C -
� 100' STREAM
� � - 30' STREAM
O� BUFFER
o
O
100' STREAM
BUFFER ��
--
\ W WL
INV IN 7 C14
PEACE HAVEN ROAD
0
O
SITE
VICINITY MAP
NOTES
IN ►►_X•►:7_l
North
NOT TO SCALE
1. SEE C-5.5 FOR NOTES AND SPECIFICATIONS FOR WET DETENTION PONDS.
2. SEASONAL HIGH WATER TABLE ELEVATION BASED ON A STUDY BY ECS CAROLINAS, LLC
DATED 11/9/2016.
3. PLANTED SHELF SHALL BE INSTALLED AT THE END OF THE PROJECT AFTER ENTIRE
DRAINAGE AREA IS STABILIZED WITH APPROVAL OF THE VILLAGE OF CLEMMONS. SEE SHEET
L-1.2 PLANTING PLAN AND REQUIREMENTS.
vJNAnnusr
uTILIT Y PROTFC�oTo
Q"2p'joGO�G
J � �
BEFORE YOU DIG!
CALL 811 N.C. ONE -CALL CENTER
IT'S THE LAW!
THE BOUNDARY AND TOPOGRAPHIC
INFORMATION HEREIN IS FROM SURVEY
INFORMATION SUPPLIED BY:
SGROI LAND SURVEYING, PLLC
145 W. PARRIS AVE., SUITE 101
HIGH POINT, NC 27262
336-885-1366 North
ELEVATION DATUM IS NAVD88
20 0 20 40 60
SCALE: 1” = 20'
stimmel
LANDSCAPE ARCHITECTURE
CIVIL ENGINEERING
LAND PLANNING
601 N. TRADE STREET, SUITE 200
WINSTON-SALEM, NC 27101
P: 336.723.1067 F: 336.723.1069
www.stimmelpa.com
SEALS:
NCBEES CERT. NO.: C-1347
o 0
SEAL
23552 '
c'):
PROJECT:
z
0
(1)
Z
O"
z
U)
�z
0
W �
JW
UJ
U
CLIENT:
CLEMMONS TC, LLC
16501 NORTHCROSS DRIVE
SUITE D
HUNTERSVILLE, NC
28078-5040
DRAWN: CY,WC
DATE: 1/31/2017
REVISIONS:
3/27/2017 CITY/VILLAGE/OWNER COMMENTS
4/28/2017 VILLAGE COMMENTS
JOB. NO: 15-226
SHEET TITLE:
WET
DETENTION
POND PLAN
SCALE: 1 if =20'
SHEET NO.:
C-5.1
© STIMMEL ASSOCIATES, P.A.

810
805
800
795
790
785
780
775
770
820
815
810
805
800
795
790
785
780
775
770
765
0+00 NCDOT TYPE 2 0+50 1+0 1+50
GEOTEXTILE FABRIC
UNDERLINER 4" SOLID WALLED SCH. 40 PVC. CUT MINIMUM 5'D X 10'W CORE TRENCH
PROPOSED GRADE INTO RESIDUAL GROUND AS SHOWN ON
SEE C-5.1 FOR DETAIL 2 THIS SHEET.
PROPOSED GRADES
2+00
POND CROSS SECTION
2+50
SCALE: HORIZ. 1"=20' VERT. 1"=10'
3+00
3+50
820
815
810
805
800
795
790
85
780
775
770
765
3+95
15.15'
NOTE:
DOWNSTREAM SLOPE -
a
EXISTING
a
CONTRACTOR SHALL NOTI
THE ENGINEER AND THE
CLEAN NATURAL
GRADE
a.
Q
4' X 4' I.D. CONCRETE RISER
W/ MONOLITHINC BASE AND
TESTING FIRM WHEN CORE
TRENCH EXCAVATION IS
SAND MEETING
HOMOGENOUS DAM FILL - SEE
SHEET
BY OTHERS
C-5.5 FOR MATERIAL
AND
TRASH RACK
TRASH RACK. SEE DETAILS ON 100
R: 791.77
PLACEMENT SPECIFICATIONS
SEE DETAILS ON
SHEET C-5.3.
-
GRADATION SEE
; ..:.......
SHEET C-5.4
SOILS. FAILURE TO DO
NOTE 2
SEEPAGE DIAPHRAGM.
10'
SO WILL RESULT IN CORE
z
25 Y - 791.E
EMERGENCY SPILLWAY
SEE DETAILS THIS SHEET.
/
10 YR: 791.26
10' PLANTED SHELF
125 LF 24" D.I.P. THICKNESS
AM
WP DAM
ELEV. /94.UU
\/4/TOP
2 YR: 790.98
0.5'
ELEV. 792.00
CLASS 50 ® 1.0%
___________ EMERGENCY
SPILLWAY ELEV. 792.00
RISER ELEV 1.00
ASTM C33
GRADATION (SEE
NOTE 2
TOP OF DAM
13.6
,
NCDOT STD. 838.01
�
ELEV. 794.00
... ..v.NORMAL POOL. ELEV. 788.00 _ .. ... _ ..
... _ ..
� 24" RCP �
ISTING GRADE-\
CONCRETE HEADWALL.
BACKFILL
'S1 "=
��
J
(/� 6 PVC
6.5'..,
/ INV.: 784.5��
SEE DET. THIS SHEET.
5' MIN.
l
D.I.
65
W -
NORMAL POOL
INV.: 786.0
36 RCP
PIPE
S
788.00
0
FOREBAY
EXISTING
10.0' PWO TOP OF 1' PERMANENT
-... ... - ... -...
..-...-...-...-...-�--�
INV.: 783.5 J
GRADE
1-I
0 5' TY P:
5> SEDIMENT STORAGE: 778.00
5,
1.5.
-0.5' MIN-
3'
Fl
.. -0.5' ...- 'T
MIN,
RENO MA
ERESS
..,.... .....
3'
FILL INTO EXISTING SLOPE
INVERT: 775.5
10' PLANTED SHELF
1' PSS
SEE DETAIL
THIS SHEET
•
CONCRETE PIPE CRADLE
BOTTOM
2' HIGH CLASS B RIP -RAP
12" THICK CLAY POND LINER.
NCDOT CLASS B
RIP
SEE DETAIL THIS SHEET
DRAIN
BERM AROUND RISER WITH 1' THICK
INSTALL PER GEOTECHNICAL
10' MIN.
AND A MINIMUM 2'
CORE TRENCH SHALL BE WIDE
RAP PAD SEE C-5.1
AREA:
MONOLITHIC BASE LAYER OF NCDOT #57 STONE ON
ENGINEERS RECOMMENDATIONS. SEE
FOR DIMENSIONS
• SLOT WIDTH =
0.01"
UPSTREAM SIDE.
SPECIFICAIONS ON C-5.5.
INTO RESIDUAL SOIL.
0+00 NCDOT TYPE 2 0+50 1+0 1+50
GEOTEXTILE FABRIC
UNDERLINER 4" SOLID WALLED SCH. 40 PVC. CUT MINIMUM 5'D X 10'W CORE TRENCH
PROPOSED GRADE INTO RESIDUAL GROUND AS SHOWN ON
SEE C-5.1 FOR DETAIL 2 THIS SHEET.
PROPOSED GRADES
2+00
POND CROSS SECTION
2+50
SCALE: HORIZ. 1"=20' VERT. 1"=10'
3+00
3+50
820
815
810
805
800
795
790
85
780
775
770
765
3+95
-0+00 0+50 1+00 1+50 2+00 2+50 3+00
r;" DAM CENTERLINE PROFILE
15.15'
NOTE:
DOWNSTREAM SLOPE -
a
a
CONTRACTOR SHALL NOTI
THE ENGINEER AND THE
CLEAN NATURAL
RETAINING WALL
a.
Q
TESTING FIRM WHEN CORE
TRENCH EXCAVATION IS
SAND MEETING
°
BY OTHERS
COMPLETE PRIOR TO PLACING
CORE TRENCH FILL
GRADATION SEE
; ..:.......
FOR INSPECTION OF EXISTING
SOILS. FAILURE TO DO
NOTE 2
SO WILL RESULT IN CORE
TRENCH BEING RE -EXCAVATED
EMERGENCY SPILLWAY
/
CLEAN NATURAL
SAND MEETING
...
ELEV. 792.00
4MIN.:
:...
"TRENCH WIDTH ...•.,MIN.
4' '':
-7777777-
.. ,• .::.
RETAINING WALL
BY OTHERS
ASTM C33
GRADATION (SEE
NOTE 2
TOP OF DAM
13.6
,
ELEV. 794.00
:
E
ISTING GRADE-\
6.5'..,
24
D.I.
65
W -
NORMAL POOL
PIPE
DAM FILL
788.00
•
-...-...-...-...
-... ... - ... -...
..-...-...-...-...-�--�
--1 TS
��I -17
1-I
0 5' TY P:
1.5.
-0.5' MIN-
.. -0.5' ...- 'T
MIN,
C TF
CORE PROPOSED DAM
3'
FILL INTO EXISTING SLOPE
DRAINAGE PIPE TO
5 MINIMUM CORE DEPTH
E
•
SECTION A -A
BE ON
4" SLOTTED SCH. 40 PVC
WELL
AND A MINIMUM 2'
CORE TRENCH SHALL BE WIDE
SCREEN PIPE IN DIAPHRAGM
AREA:
NOTE:
• SLOT WIDTH =
0.01"
INTO RESIDUAL SOIL.
ENOUGH TO ACCOMMODATE
• O.D. SLOT LENGTH =
1.75"
1. CONCRETE CRADLE NOT SHOWN ON THIS DETAIL FOR CLARITY. SEE
• SLOT SPACING =
0.25"
CONCRETE CRADLE DETAIL
FOR INSTALLATION OF CRADLE.
COMPACTION EQUIPMENT OR
= 4
2. SAND USED FOR SEEPAGE
DIAPHRAGM SHALL MEET ASTM C-33
GRADATION AND SHALL BE
TO FIELD VERIFY.
SAND MATERIALS AND ROCK SCREENINGS NOT ALLOWED.
SEEPAGE
24"
DIP
-0+00 0+50 1+00 1+50 2+00 2+50 3+00
r;" DAM CENTERLINE PROFILE
NOT TO SCALE
8'
° ° a
a
a : °
D a
a
a
D ° ° .
a 24" DI OUTLET BARREL 4' SEEPAGE
a DIAPHRAGM
a ° DRAIN PIPE
D
° ° a
a
a
a
a a
zfta
a ° ° a ° ° RODENT GUARD <.
a Q °
a ° a
a
ELEVATION
CONCRETE HEADWALL
24" NCDOT
CLASS B
RIP RAP
TOP OF
RIPRAP
• O.D. SLOT LENGTH = 1.75"
• SLOT SPACING = 0.25"
• ROWS OF SLOTS = 4
NCDOT STD. 838.01
CONCRETE HEADWALL �9
MODIFY TO EXTEND TO _
MIN. 4' BELOW OUTLET
BARREL INVERT
_ _ _
NCDOT TYPE' -2 GEOTEXTILE
SCALE: HORIZ. 1"=20' VERT. 1"=10'
3+50
4+00
VEGETATED EMERGENCY SPILLWAY.
ELEV: 792.00
SEE SHT. C-5.5 FOR SEEDING
SPECIFICATIONS.
LINE WITH NORTH AMERICAN GREEN P300
PERMANENT TURF REINFORCEMENT MAT.
TOP DAM: 794.00
1 2 1
4 4
16
EMERGENCY SPILLWAY SECTION
NTS
CLASS B
STONE SECTION THROUGH FOREBAY
NTS
° CONCRETE
24" DI OUTLET PIPEHEADWALL .__D° °
(SEE PLANS)
a
D
INV: 775.75
- - - - - - -
0
4" SCH 40 PVC
° ° ° SOLID PIPE
�. a = _
- I
2'-1
° °
a
0 a
4"DIAPHRAGM
DRAIN PIPE
101 1" #0 0515
D
15.15'
DOWNSTREAM SLOPE -
a
a
CLEAN NATURAL
a.
Q
SAND MEETING
°
ASTM C33b.
GRADATION SEE
; ..:.......
NOTE 2
CLEAN NATURAL
SAND MEETING
...
4MIN.:
:...
"TRENCH WIDTH ...•.,MIN.
4' '':
-7777777-
.. ,• .::.
ASTM C33
GRADATION (SEE
NOTE 2
13.6
,
:
F.
6.5'..,
24
D.I.
65
W -
PIPE
•
•
,
0 5' TY P:
1.5.
-0.5' MIN-
.. -0.5' ...- 'T
MIN,
C TF
3'
DRAINAGE PIPE TO
SECTION A -A
BE ON
4" SLOTTED SCH. 40 PVC
WELL
BOTHAPPED ENDS SIDE VIEW
SCREEN PIPE IN DIAPHRAGM
AREA:
NOTE:
• SLOT WIDTH =
0.01"
• O.D. SLOT LENGTH =
1.75"
1. CONCRETE CRADLE NOT SHOWN ON THIS DETAIL FOR CLARITY. SEE
• SLOT SPACING =
0.25"
CONCRETE CRADLE DETAIL
FOR INSTALLATION OF CRADLE.
• ROWS OF SLOTS
= 4
2. SAND USED FOR SEEPAGE
DIAPHRAGM SHALL MEET ASTM C-33
GRADATION AND SHALL BE
"CLEAN NATURAL SAND." MANUFACTURED
SAND MATERIALS AND ROCK SCREENINGS NOT ALLOWED.
SEEPAGE
DIAPHRAGM
NOT TO SCALE
8'
° ° a
a
a : °
D a
a
a
D ° ° .
a 24" DI OUTLET BARREL 4' SEEPAGE
a DIAPHRAGM
a ° DRAIN PIPE
D
° ° a
a
a
a
a a
zfta
a ° ° a ° ° RODENT GUARD <.
a Q °
a ° a
a
ELEVATION
CONCRETE HEADWALL
24" NCDOT
CLASS B
RIP RAP
TOP OF
RIPRAP
• O.D. SLOT LENGTH = 1.75"
• SLOT SPACING = 0.25"
• ROWS OF SLOTS = 4
NCDOT STD. 838.01
CONCRETE HEADWALL �9
MODIFY TO EXTEND TO _
MIN. 4' BELOW OUTLET
BARREL INVERT
_ _ _
NCDOT TYPE' -2 GEOTEXTILE
SCALE: HORIZ. 1"=20' VERT. 1"=10'
3+50
4+00
VEGETATED EMERGENCY SPILLWAY.
ELEV: 792.00
SEE SHT. C-5.5 FOR SEEDING
SPECIFICATIONS.
LINE WITH NORTH AMERICAN GREEN P300
PERMANENT TURF REINFORCEMENT MAT.
TOP DAM: 794.00
1 2 1
4 4
16
EMERGENCY SPILLWAY SECTION
NTS
CLASS B
STONE SECTION THROUGH FOREBAY
NTS
° CONCRETE
24" DI OUTLET PIPEHEADWALL .__D° °
(SEE PLANS)
a
D
INV: 775.75
- - - - - - -
0
4" SCH 40 PVC
° ° ° SOLID PIPE
�. a = _
- I
2'-1
° °
a
0 a
4"DIAPHRAGM
DRAIN PIPE
101 1" #0 0515
D
EXPANDED
ALUMINUM
GRATE
(4)-Y2"0 STAINLESS
STEEL EXPANSION
ANCHOR WITH
1"
STAINLESS STEEL
° Q WASHERS
4
RODENT GUARD
4+50
RENO MATTRESS
N.T.S.
A" nIADLJDACAA
5+00
810
805
800
795
790
785
780
775
770
5+555
3 X PIPE DIAMETER
12 THICK RENO MATTRESS
WITH NCDOT CLASS B STONE FILL
WOVEN GEOTEXTILE FABRIC /
MIRAFI 70OX OR EQUAL
SECTION
INSIDE EDGE OF
VEGETATIVE SHELF NORMAL POOL
ME
WOVEN GEOTEXTILE FABRIC
MIRAFI 70OX OR EQUAL
PROFILE
12" THICK RENO MATTRESS
WITH NCDOT CLASS B STONE FILL
,BOTTOM POND
PIPE TRENCH
_I- COMPACTED BACKFILL
_:_j I - - CONCRETE CRADLE
_ RISER OUTLET
-_ PIPE
(SEE PLANS) I=
ad a Q -1
11.
_ EH77 - I INITIAL POUR
171
1' MIN 1' MIN
6" MINIMUM. PROVIDE SOLID CONCRETE
BLOCKING UNDER PIPE
NOTES:
1. CONCRETE CRADLE MATERIAL SHALL BE 1,000 PSI PUMP MIX.
2. DO NOT FORM THE SIDES OF THE CRADLE - POUR FULL WIDTH OF TRENCH
3. PLACE CRADLE IN TWO POURS TO PREVENT PIPE FLOATATION. INITIAL POUR
TO EXTEND 3" - 4" ABOVE UNDER SIDE OF PIPE. FINAL POUR TO EXTEND
3/4 PIPE DIAMETER.
4. VIBRATE CONCRETE TO INSURE NO VOIDS.
5. FORM ENDS OF CONC. CRADLE AT SEEPAGE DIAPHRAGM
CONCRETE PIPE CRADLE
N.T.S. N.T.S.
stimmel
LANDSCAPE ARCHITECTURE
CIVIL ENGINEERING
LAND PLANNING
601 N. TRADE STREET, SUITE 200
WINSTON-SALEM, NC 27101
P: 336.723.1067 F: 336.723.1069
www.stimmelpa.com
SEALS:
NCBEES CERT. NO.: C-1347
•``%N "CA"I1-
-%S
SEAL-
23552
,4�,
........... I
CLIENT:
CLEMMONS TC, LLC
16501 NORTHCROSS DRIVE
SUITE D
HUNTERSVILLE, NC
28078-5040
DRAWN: CY,WC
DATE: 1/31/2017
REVISIONS:
0 3/27/2017 CITY/VILLAGE/OWNER COMMENTS
JOB. NO: 15-226
SHEET TITLE:
WET
DETENTION
POND PROFILES
AND DETAILS
SCALE: AS NOTED
SHEET NO.:
�5
2
■
©STIMMEL ASSOCIATES, P.A.
a
�
a
a
°
a.
Q
°
EXPANDED
ALUMINUM
GRATE
(4)-Y2"0 STAINLESS
STEEL EXPANSION
ANCHOR WITH
1"
STAINLESS STEEL
° Q WASHERS
4
RODENT GUARD
4+50
RENO MATTRESS
N.T.S.
A" nIADLJDACAA
5+00
810
805
800
795
790
785
780
775
770
5+555
3 X PIPE DIAMETER
12 THICK RENO MATTRESS
WITH NCDOT CLASS B STONE FILL
WOVEN GEOTEXTILE FABRIC /
MIRAFI 70OX OR EQUAL
SECTION
INSIDE EDGE OF
VEGETATIVE SHELF NORMAL POOL
ME
WOVEN GEOTEXTILE FABRIC
MIRAFI 70OX OR EQUAL
PROFILE
12" THICK RENO MATTRESS
WITH NCDOT CLASS B STONE FILL
,BOTTOM POND
PIPE TRENCH
_I- COMPACTED BACKFILL
_:_j I - - CONCRETE CRADLE
_ RISER OUTLET
-_ PIPE
(SEE PLANS) I=
ad a Q -1
11.
_ EH77 - I INITIAL POUR
171
1' MIN 1' MIN
6" MINIMUM. PROVIDE SOLID CONCRETE
BLOCKING UNDER PIPE
NOTES:
1. CONCRETE CRADLE MATERIAL SHALL BE 1,000 PSI PUMP MIX.
2. DO NOT FORM THE SIDES OF THE CRADLE - POUR FULL WIDTH OF TRENCH
3. PLACE CRADLE IN TWO POURS TO PREVENT PIPE FLOATATION. INITIAL POUR
TO EXTEND 3" - 4" ABOVE UNDER SIDE OF PIPE. FINAL POUR TO EXTEND
3/4 PIPE DIAMETER.
4. VIBRATE CONCRETE TO INSURE NO VOIDS.
5. FORM ENDS OF CONC. CRADLE AT SEEPAGE DIAPHRAGM
CONCRETE PIPE CRADLE
N.T.S. N.T.S.
stimmel
LANDSCAPE ARCHITECTURE
CIVIL ENGINEERING
LAND PLANNING
601 N. TRADE STREET, SUITE 200
WINSTON-SALEM, NC 27101
P: 336.723.1067 F: 336.723.1069
www.stimmelpa.com
SEALS:
NCBEES CERT. NO.: C-1347
•``%N "CA"I1-
-%S
SEAL-
23552
,4�,
........... I
CLIENT:
CLEMMONS TC, LLC
16501 NORTHCROSS DRIVE
SUITE D
HUNTERSVILLE, NC
28078-5040
DRAWN: CY,WC
DATE: 1/31/2017
REVISIONS:
0 3/27/2017 CITY/VILLAGE/OWNER COMMENTS
JOB. NO: 15-226
SHEET TITLE:
WET
DETENTION
POND PROFILES
AND DETAILS
SCALE: AS NOTED
SHEET NO.:
�5
2
■
©STIMMEL ASSOCIATES, P.A.

NORMAL POOL
ELEV. 788.00
54" BASE
SECTION
HEIGHT
12" 12
ELEV. 791.00
3000 PSI
CONCRETE -
COLLAR
12"
Qd d.
a 4„ Q.
d
e °
a .
22 1/4" '
d
.(7777--
a
8"
24" DUCTILE
IRON OUTLET PIPE
MONOLITHINC BASE
PRECAST
STRUCTURE WALL
8"
COAT SURFACE OF PRECAST
RISER WITH A BONDING
AGENT. SIKADUR 31, HI -MOD
GEL OR EQUAL
#5 REBAR DOWEL 0 10" O.C.
EMBED INTO PRECAST 4" MIN.
USING SIKADUR ANCHORFIX-2.
_-----EXTEND 8" INTO COLLAR AND
TERMINATE WITH A 4" 90° HOOK.
TYP OF 9.
SLINK SEAL
FILL INVERT OF STRUCTURE UP
TO INVERT OF BARREL WITH
3,000 PSIQ28 DAYS CONC.
LINK SEAL
CONCRETE COLLAR SECTION-
NTS
ECT ON
NTS
4'-0"
NOTE:
1. MIN. SERVICE WEIGHT OF CONC 145
LBS/CY
2. MIN WEIGHT OF STIR PRIOR TO BLOCKOUTS
SHALL BE 21,765 LBS. SUBMIT CALCULATIONS
SUPPORTING THE INDICATED WEIGHT.
8" MIN. WALL
THICKNESS
12" THICK MONOLITHIC
CONCRETE BASE
OUTSIDE
FACE OF
STRUCTURE
52" COLLAR HEIGHT
1 NOTE: FOR TRASH RACK AND
PROVIDE STEPS ON THE INSIDE AND ALUMINUM—ANTI VORTEX
OUTSIDE OF RISER IN ACCORDANCE PLATES SEE SHEET C-5.4
W/ ASTM -478 CO—POLYMER FOR DETAILS
POLYPROPLYENE STEEL
REINFORCED STEPS 16" O.C. ALIGN
WITH TRACK RACK DOOR. J
SOLID PRECAST CONCRETE BOX.
WAFFLE STYLE BOX NOT ACCEPTABLE.
JOINT DESIGN SHALL CONFORM TO
ASTM C-478. JOINT SHALL BE
SEALED USING BUTYL RUBBER
SEALANT CONFORMING TO
ASTM -990. PARGE JOINTS
INSIDE AND OUT WITH NON—
SHRINK GROUT.
BLOCKOUT BY PRECASTER. IF BLOCKOUT BY
PRECAST DIFFERS THAN WHAT IS SHOWN THE
-COLLAR MAY NEED TO BE ADJUSTED TO MAINTAIN
THE DIMENSIONS SHOWN AT NO COST TO THE
OWNER
24" D.I. OUTLET PIPE
INV. 777.00
FILL INVERT OF STRUCTURE UP
TO INVERT OF BARREL WITH
3,000 PSI@28 DAYS CONC.
ELEV 777.00
6" WASHED #57 S1`l7NE
LEVELING COURSE
12" SURGE STONE
STABILIZATION
7'-4"
OUTLET STRUCTURE SECTION A -A
64" COLLXR WIDTH -
16 MIN
1 TT
(--,8"
1 + r
24" DUCTILE
IRON OUTLET PIPE
6„
COAT SURFACE OF PRECAST
RISER WITH A BONDING
AGENT. SIKADUR 31, HI -MOD
GEL OR EQUAL
24" D.I.
25.8" 0. D. #5 REBAR DOWEL @ 10" O.C.
EMBED INTO PRECAST 4" MIN.
USING SIKADUR ANCHORFIX-2.
ZEXTEND 8" INTO COLLAR AND
TERMINATE WITH A 4" 90' HOOK.
TYP OF 9.
BLOCKOUT BY PRECASTER. IF BLOCKOUT BY
PRECAST DIFFERS THAN WHAT IS SHOWN THE
COLLAR MAY NEED TO BE ADJUSTED TO MAINTAIN
THE DIMENSIONS SHOWN AT NO COST TO THE
OWNER
12.2" MIN
PROVIDE A SOLID
CONCRETE BLOCK
TO SUPPORT PIPE
DURING LINK SEAL
INSTALLATION AND
POURING OF FLOOR.
CONCRETE COLLAR ELEVATION-
NTS
LEVAT ON
NTS
TRASH RACK
SEE C-5.4
ZL PROVIDE STEPS ON THE INSIDE AND
OUTSIDE OF THE RISER IN ACCORDANCE
W/ ASTM -478 CO—POLYMER
POLYPROPLYENE STEEL
REINFORCED STEPS 16" O.C. ALIGN
WITH TRASH RACK DOOR.
CONCRETE COLLAR
BY CONTRACTOR
SEE DETAILS 1 & 2 °
THIS SHEET `
L_
12" da
d,
24" D.I. OUTLET PIPE
18"
ELEV. 791.00
8" MIN. WALL
THICKNESS
4'-0"
28" BLOCK OUT FOR
/24" D.I. PIPE BY
PRECASTER
LINK -SEAL (LS -425-C-23)
IN 28 -INCH CAST OR CORED
HOLE. CONFIRM HOLE DIA PRIOR
TO CASTING
BOTTOM OF
STIR. 776.50
e
INVERT
777.00
d d
12" THICK MONOLITHIC
CONCRETE BASE
71-4"
VALVE
OPERATING
STEM
REMOVEABLE VALVE
WRENCH WITH HAND
WHEEL ON TOP. PROVIDE
CHAIN AND LOCK FOR
SECURING WRENCH TO
TRASH RACK.
SECTION A—A
EXTENSION STEM WITH 2"
OPERATING NUT ON TOP
ATTACH STEM TO
OPERATING NUT TO
PREVENT REMOVAL
6" RESILIENT WEDGE
GATE VALVE - F.L. ENDS
SHALL MEET AWWA C509
FILL INV OF STRUCTURE
UP TO INVERT OF
BARREL (6"t)
MONOLITHINC
CONCRETE BASE
SECTION
FIELD CORE FOR 6" SCH 40 PVC
DRAWDOWN PIPE. PRECASTER TO
BLOCKOUT REINFORCING IN THI-
FILL VOID WITH A NON -SHRINK
INVERT 788.00
6" PVC PIPE TURNED
DOWN TO 6" BELOW NORM
POOL ELEVATION.
NORMAL POOL
ELEV. 788.00
C(
6"
6" CAP W/ 3"0 HOLE
LINK -SEAL
TRASH GUARD FOR
BOTTOM DRAIN, SEE
SHEET C-5.4
6" DRAIN PIPE & GATE VALVE
/SEE DETAIL THIS SHEET.
OUTLET STRUCTURE SECTION B -B
ELEV 777.00
16" WASHED #57 STONE
LEVELING COURSE
12" SURGE STONE
STABILIZATION
12"
MAX.
6"
a \
4 a'
° 46
a °
a ° c
a
BED VALVE IN
NON—SHRINK GROUT
FOR SUPPORT
BOTTOM DRAIN VALVE
NTS
PRECAST
TRUCTURE
SECURE STEM GUIDE
BRACKET TO WALL USING
EXPANSION ANCHORS
SECURE STEM GUIDE
BRACKET TO WALL USING
EXPANSION ANCHORS
6" DUCTILE
IRON PIPE
FL—FL
6" FLANGE W/ 3"0
EXTENSION TO TEMP
SKIMMER PIPE. ATTACH W/
FERNCO COUPLING.
REMOVE AFTER SITE IS
STABILIZED AND BASIN CAN
BE REMOVED.
MINIMUM DEPTH
REQ.'D TO INSTALL
ASSEMBLY
LINK—SEAL
\(LS -410—C-10)
IN 10—INCH CAST OR
CORED HOLE. CONFIRM
HOLE DIA PRIOR TO
CASTING
NOTE:
TRASH RACK NOT
OUTSIDE A �� SHOWN FOR CLARITY
OUTLET STRUCTURE PLAN VIEW
NTS v NTS NTS
6" BOTTOM
DRAIN PIPE
4"
TAW
stimmel
LANDSCAPE ARCHITECTURE
CIVIL ENGINEERING
LAND PLANNING
601 N. TRADE STREET, SUITE 200
WINSTON-SALEM, NC 27101
P: 336.723.1067 F: 336.723.1069
www.stimmelpa.com
SEALS:
NCBEES CERT. NO.: C-1347
•`` %% "CA"I"� ✓
- v
SEAL -
23552 '
,4�,
�
F; q-
........... I
CLIENT:
CLEMMONS TC, LLC
16501 NORTHCROSS DRIVE
SUITE D
HUNTERSVILLE, NC
28078-5040
DRAWN: CYNIC
DATE: 1/31/2017
REVISIONS:
3/27/2017 CITY/VILLAGE/OWNER COMMENTS
JOB. NO: 15-226
SHEET TITLE:
WET
DETENTION
POND OUTLET
STRUCTURE
DETAILS
SCALE: AS NOTED
SHEET NO.:
■
© STIMMEL ASSOCIATES, P.A.

3"x 1 /4"
JM. ANGLE
1/2" [1] ALUM. BARS
6" OCEW, VERTICAL BARS
OVER HORIZONTAL BARS
(TYP)
NOTE:
WELD BARS AT ALL
INTERSECTIONS
l VIV I �Hl VK 0 FIELD MEASURE
PRECAST CONCRETE RISER PRIOR
TO FABRICATING THE TRASH RACK
AND ANTI—VORTEX FRAME.
TRASH RACK PLAN VIEW
NTS
V-10 5
FLAT
(WELD ✓FULL LENGTH)
4'-1 1/2"
2"x 1 /4" ALUM.
FLAT BAR STIFFENER
(WELD FULL LENGTH)
ANTI -VORTEX FRAME SECTION A—A
NTS
F
44
w
iR
SO
V
z
3
3"x3"x 1 /4'
ALUM. ANGLE
2
3"x1 /4" ALUM.
TRASH RACK ELEVATION
NTS
2"x2"x 1 /4"
ALUM. ANGLE
311 WELD TO HINGED
/ FRAME OF
TRASH RACK
(FULL LENGTH)
'-7 1/4"
2"x2"x 1 /4"
ALUM. ANGLE
1/4" ALUM.
PLATE
1'-10 5/8"
3"
E DETAIL 4
IS SHEET FOR
TI -VORTEX
SEMBLY
'-3 1/2"L X 1/2" DIA. ALUM. ROD
'/ THREADED ENDS
ROVIDE 1/2" DIA.
'ASHERS AND NUTS
T EACH END
<3"x1 /4"
UM. ANGLE
OUTSIDE FACE
OF RISER
STRUCTURE
ANTI -VORTEX FRAME SECTION B—B
NTS
3"x4"x1�
ALUM. ANC
(T`
SECURE TRASH RACK TO
RISER STRUCTURE USING
STAINLESS STEEL ANCHORS
12" OC.
HINGE ASSEMBLY
3/4" DIA. HOLE (TYP OF 2)
TRASH RACK SECTION A—A
NTS
FA1
PLAN VIEW
3'-6"
ALIGN DOOR
WITH STEPS
DETAIL 4
S SHEET FOR
FI -VORTEX
>EMBLY
,E FACE
"ER
PURE
ANGLE TO
RISER STRUCTURE AND
EXTENDED BASE USING
STAINLESS STEEL
EXPANSION ANCHORS
"x1/4" ALUM.
_E SIDE
DP FRAME
AST PAD
RISER
1 CTU R E
OUTSI[
0
STF
f
ANTI -VORTEX PANEL
NOT WELDED TO HINGED FRAME
.0
YYLL✓L✓ IV IIIIVVL✓
PLAN VIEW FRAME OF TRASH RACK
ANTI -VORTEX FRAME
NTS
1 /2"M ALUM. BARS
4" OC EACH FACE
WELD AT ALL
CONNECTIONS
M-
SECTON A -A
ELEVATION -
BOTTOM
LEVAT 0NBOTTOM D RAIN TRASH GUARD.
NTS
NOTE
THE TRASH RACK SHALL BE
LOCKABLE AND HINGED.
TAW
stimmel
LANDSCAPE ARCHITECTURE
CIVIL ENGINEERING
LAND PLANNING
601 N. TRADE STREET, SUITE 200
WINSTON-SALEM, NC 27101
P: 336.723.1067 F: 336.723.1069
www.stimmelpa.com
SEALS:
NCBEES CERT. NO.: C-1347
•``�N"CA"I1's'—nom
S _
SEAL -
23552
F;
0B�G I NE
PROJECT:
z
O
CLIENT:
CLEMMONS TC, LLC
16501 NORTHCROSS DRIVE
SUITE D
HUNTERSVILLE, NC
28078-5040
DRAWN:
CY,WC
DATE:
1 /2" DIA. x 3"
REVISIONS:
,3/27/2017 CITY/VILLAGE/OWNER COMMENTS
STAINLESS STEEL
EXPANSION ANCHOR (TYP)
EXTENDED BASE
P
JOB. NO:
15-226
OF RISER STRUCTURE
SECTON A -A
ELEVATION -
BOTTOM
LEVAT 0NBOTTOM D RAIN TRASH GUARD.
NTS
NOTE
THE TRASH RACK SHALL BE
LOCKABLE AND HINGED.
TAW
stimmel
LANDSCAPE ARCHITECTURE
CIVIL ENGINEERING
LAND PLANNING
601 N. TRADE STREET, SUITE 200
WINSTON-SALEM, NC 27101
P: 336.723.1067 F: 336.723.1069
www.stimmelpa.com
SEALS:
NCBEES CERT. NO.: C-1347
•``�N"CA"I1's'—nom
S _
SEAL -
23552
F;
0B�G I NE
PROJECT:
z
O
CLIENT:
CLEMMONS TC, LLC
16501 NORTHCROSS DRIVE
SUITE D
HUNTERSVILLE, NC
28078-5040
DRAWN:
CY,WC
DATE:
1/31/2017
REVISIONS:
,3/27/2017 CITY/VILLAGE/OWNER COMMENTS
JOB. NO:
15-226
SHEET TITLE:
WET
DETENTION
POND TRASH
RACK DETAILS
SCALE:
AS NOTED
SHEET NO
C-5.4
©STIMMEL ASSOCIATES, P.A.

POND CONSTRUCTION SPECIFICATIONS:
A. PRECAST STRUCTURE SPECIFICATIONS
1. STRUCTURE DESIGN SPECIFICATIONS SHALL CONFORM TO LATEST ASTM C913
SPECIFICATIONS FOR "PRECAST CONCRETE WATER AND WASTEWATER STRUCTURES"
AND NCDOT STANDARDS.
2. CONCRETE COMPRESSIVE STRENGTH 4,000 PSI MINIMUM.
3. IN-PLACE MINIMUM WEIGHT OF CONCRETE SHALL BE 145 LBS/CF.
4. STEEL REINFORCING DESIGN TO CONFORM TO THE REQUIREMENTS OF ASTM
C890 SPECIFICATIONS FOR" STRUCTURAL DESIGN LOADING FOR WATER AND
WASTEWATER STRUCTURES" AND SHALL UTILIZE GRADE 60 RE -BARS CONFORMING
TO THE REQUIREMENTS OF ASTM A615 OR WWF CONFORMING TO THE
REQUIREMENTS OF ASTM A185 OR BOTH.
5. PROVIDE ADDITIONAL REINFORCING AT OPENINGS.
6. STRUCTURE TO BE DESIGNED FOR FULL HYDROSTATIC LOADING RESULTING FROM
WATER LEVELS TO THE TOP OF THE DAM OR HS -20 TRAFFIC LOADING, WHICHEVER
IS GREATER.
7. STEPS REQUIRED AS SHOWN. STEPS SHALL BE STEEL REINFORCED COPOLYMER
POLYPROPYLENE PLASTIC AND MEET THE REQUIREMENTS OF ASTM C478.
8. JOINT DESIGN TO CONFORM TO ASTM C-478. JOINTS TO BE SEALED WITH
BUTYL RUBBER JOINT SEALANT CONFORMING TO THE REQUIREMENTS OF ASTM
C990. PARGE JOINTS INSIDE AND OUT USING NON -SHRINK GROUT.
9. STRUCTURAL DRAWINGS AND CALCULATIONS SEALED BY A NC PROFESSIONAL
ENGINEER ARE REQUIRED. THE ABOVE MIN. REQUIREMENTS SHALL BE STATED IN
SUBMITTED MATERIAL.
10. THE EXTERIOR OF THE PRECAST STRUCTURE SHALL CONFORM TO THE
FOLLOWING:
A. EXTERIOR FINISH SHALL BE UNIFORM IN COLOR, TEXTURE AND
APPEARANCE.
B. LIFT POINTS SHALL BE HIDDEN.
C. THE EXTERIOR FACE OF THE PRECAST STRUCTURE SHALL BE CONSTRUCTED
USING GOOD INDUSTRY PRACTICES SUCH AS CLEANING OF FORMS, DESIGN
OF CONCRETE MIX, PLACING AND CURING. NO MAJOR OR UNSIGHTLY
IMPERFECTIONS, HONEYCOMBS OR OTHER DEFECTS WILL BE PERMITTED.
EACH PRECAST UNIT SHALL PRESENT A SMOOTH, STRAIGHT, UNIFORM AND
CLEAN SURFACE W/O PAINTING. NO COMPANY LOGO, SHIPPING INFO OR
OTHER IDENTIFYING MARKINGS ARE PERMITTED ON THE EXTERIOR OF
THE UNIT.
D. THE TOP SURFACE OF THE UNIT SHALL BE LEVEL, UNIFORM IN FINISH AND
ELEVATION.
B. PRINCIPAL SPILLWAY PIPE
DUCTILE IRON PIPE PRESSURE CLASS 50 CONFORMING TO ANSI C151
C. SEEPAGE DIAPHRAGM
1. SAND: ASTM C33 ("CLEAN NATURAL SAND," MANUFACTURED SAND MATERIALS AND
ROCK SCREENINGS ARE NOT PERMITTED)
2. SAND COMPACTION: THE MINIMUM DRY DENSITY OF THE COMPACTED
SAND SHALL BE EQUAL TO 95 PERCENT OF THE DRY DENSITY
OBTAINED BY COMPACTING A SINGLE SPECIMEN
OF SAND USING THE ENERGY AND METHODS DESCRIBED
IN ASTM D698A. THE TEST CONSISTS OF A ONE POINT
TEST PERFORMED ON SAND THAT HAS BEEN AIR DRIED
THOROUGHLY PRIOR TO COMPACTION.
3. DIAPHRAGM DRAINAGE PIPE:
A. WITHIN DIAPHRAGM SAND: SLOTTED SCH. 40 PVC -SLOT WIDTH 0.01" OR LESS.
B. OUTSIDE DIAPHRAGM SAND: SOLID SCH. 40 PVC.
D. ROCK RIP RAP
ROCK RIP RAP SHALL MEET THE REQUIREMENTS OF NORTH CAROLINA DEPARTMENT
OF TRANSPORTATION, STANDARD SPECIFICATIONS, SECTION 1042. THE RIP RAP
SHALL BE PLACED TO THE REQUIRED THICKNESS IN ONE OPERATION. THE ROCK
SHALL BE DELIVERED AND PLACED IN A MANNER THAT WILL INSURE THE RIP RAP
IN PLACE SHALL BE REASONABLY HOMOGENEOUS WITH THE LARGER ROCKS
UNIFORMLY DISTRIBUTED AND FIRMLY IN CONTACT ONE TO ANOTHER WITH THE
SMALLER ROCKS FILLING THE VOIDS BETWEEN THE LARGER ROCKS. FILTER CLOTH
SHALL BE PLACED UNDER ALL RIP RAP AND SHALL MEET THE REQUIREMENTS OF
NORTH CAROLINA DEPARTMENT OF TRANSPORTATION, STANDARD SPECIFICATIONS,
SECTION 1056, TYPE 2.
E. CARE OF WATER DURING CONSTRUCTION
ALL WORK ON THE PERMANENT STRUCTURES SHALL BE CARRIED OUT IN AREAS
FREE FROM WATER. THE CONTRACTOR SHALL CONSTRUCT AND MAINTAIN ALL
TEMPORARY DIKES, LEVEES, COFFER DAMS, DRAINAGE CHANNELS, AND STREAM
DIVERSIONS NECESSARY TO PROTECT THE AREAS TO BE OCCUPIED BY THE
PERMANENT WORKS. THE CONTRACTOR SHALL ALSO FURNISH, INSTALL, OPERATE
AND MAINTAIN ALL NECESSARY PUMPING AND OTHER EQUIPMENT REQUIRED FOR
REMOVAL OF WATER FROM THE VARIOUS PARTS OF THE WORK AND FOR
MAINTAINING THE EXCAVATIONS, FOUNDATION, AND OTHER PARTS OF THE WORK
FREE FROM WATER AS REQUIRED OR DIRECTED BY THE ENGINEER FOR
CONSTRUCTING EACH PART OF THE WORK. AFTER HAVING SERVED THEIR PURPOSE,
ALL TEMPORARY PROTECTIVE WORKS SHALL BE REMOVED OR LEVELED AND GRADED
TO THE EXTENT REQUIRED TO PREVENT OBSTRUCTION IN ANY DEGREE WHATSOEVER
OF THE FLOW OF WATER TO THE SPILLWAY OR OUTLET WORKS AND SO AS NOT TO
INTERFERE IN ANY WAY WITH THE OPERATION OR MAINTENANCE OF THE STRUCTURE.
STREAM DIVERSIONS SHALL BE MAINTAINED UNTIL THE FULL FLOW CAN BE PASSED
THROUGH THE PERMANENT WORKS. THE REMOVAL OF WATER FROM THE REQUIRED
EXCAVATION AND THE FOUNDATION SHALL BE ACCOMPLISHED IN A MANNER AND TO
THE EXTENT THAT WILL MAINTAIN STABILITY OF THE EXCAVATED SLOPES AND
BOTTOM OF REQUIRED EXCAVATIONS AND WILL ALLOW SATISFACTORY PERFORMANCE
OF ALL CONSTRUCTION OPERATIONS. DURING THE PLACING AND COMPACTING OF
MATERIAL IN REQUIRED EXCAVATIONS, THE WATER LEVEL AT THE LOCATIONS BEING
REFILLED SHALL BE MAINTAINED BELOW THE BOTTOM OF THE EXCAVATION AT SUCH
LOCATIONS WHICH MAY REQUIRE DRAINING THE WATER TO SUMPS FROM WHICH THE
WATER SHALL BE PUMPED.
F. EROSION AND SEDIMENT CONTROL
CONSTRUCTION OPERATIONS SHALL BE CARRIED OUT IN SUCH A MANNER THAT
EROSION WILL BE CONTROLLED AND WATER AND AIR POLLUTION MINIMIZED. STATE
AND LOCAL LAWS CONCERNING POLLUTION ABATEMENT SHALL BE FOLLOWED.
CONSTRUCTION PLANS DETAIL EROSION AND SEDIMENT CONTROL MEASURES TO BE
EMPLOYED DURING THE CONSTRUCTION PROCESS.
G. MAINTENANCE SCHEDULE
SEE PROJECT OPERATION AND MAINTENANCE AGREEMENT.
H. REQUIRED SUBMITTALS
1. SUBMITTALS FOR THE FOLLOWING ITEMS ARE REQUIRED TO BE APPROVED PRIOR
TO BEGINNING CONSTRUCTION. THE ENGINEER WILL ATTEMPT TO REVIEW THE
SUBMITTALS WITHIN 10 BUSINESS DAYS OF RECEIPT. NOTE: MATERIAL SUBSTITUTIONS
ARE NOT ALLOWED, UNLESS SPECIFICALLY REQUESTED IN WRITING AND APPROVED BY
THE ENGINEER. REQUESTS FOR MATERIAL SUBSTITUTES ARE NOT RECOMMENDED AND
MAY DELAY APPROVAL. CONTRACTOR SHALL PROVIDE SUBMITTAL AND REQUEST FOR
ANY MATERIAL SUBSTITUTIONS WELL IN ADVANCE TO AVOID POTENTIAL DELAY.
A. DUCTILE IRON PIPE.
B. PRECAST STRUCTURE
- SEALED STRUCTURAL CALCULATIONS
- SHOP DRAWING OF STRUCTURE WITH COMPLETE DETAILS
OF JOINTS, STEEL PLACEMENT, STEPS, BLOCKOUTS, ETC.
- WEIGHT OF STRUCTURE BEFORE BLOCKOUTS
- CONCRETE MIX DESIGN W/ UNIT WEIGHT OF CONCRETE
C. CAST IN-PLACE CONCRETE MIX DESIGN WITH UNIT WEIGHT SPECIFIED.
D. LINK -SEAL CUT SHEET.
E. TRASH RACK SHOP DRAWING.
F. BOTTOM DRAIN AND APPEARANCES.
G. SAND GRADATION REPORT OF ACTUAL SAND TO BE USED IN SEEPAGE
CONTROL FOR THIS PROJECT..
H. SEEPAGE PIPING WITH SPECIFIED OPENINGS.
I. NON -SHRINK GROUT.
J. BUTYL JOINT SEALER.
0
00
r
00
N
M
O
Z
0
Q
U
L�
U
W
d
0
Z
0
a
Lo
0
Lo
N
N
!s
I. INSPECTION SCHEDULE
IT IS CRITICAL FOR SEVERAL ITEMS TO BE INSPECTED AT THE APPROPRIATE TIME
DURING CONSTRUCTION. IT IS THE CONTRACTOR'S RESPONSIBILITY TO NOTIFY THE
ENGINEER AT LEAST 2 DAYS PRIOR TO BEGINNING WORK ON THESE ITEMS TO
SCHEDULE INSPECTIONS. THE ITEMS ARE AS FOLLOWS AS THEY APPLY TO EACH
DAM.
ANY ITEMS CONSTRUCTED AND COVERED UP PRIOR TO OBSERVATION WILL BE
UNCOVERED OR TESTING WILL BE PROVIDED AS APPROPRIATE AT THE
CONTRACTOR'S EXPENSE.
1. THE CUTOFF TRENCH SHALL BE INSPECTED AFTER EXCAVATION AND PRIOR TO
PLACING BACKFILL.
2. BARREL PLACEMENT BEFORE AND DURING BACKFILL.
3. BARREL SEEPAGE DIAPHRAGM BEFORE SAND PLACEMENT.
4. RISER STRUCTURE SUBGRADE PRIOR TO PLACEMENT.
5. EMERGENCY SPILLWAY PRIOR TO MATTING PLACEMENT.
6. CONCRETE COLLAR AT OUTLET STRUCTURE PRIOR TO PLACING CONCRETE.
7. LINER PLACEMENT BEFORE AND DURING BACKFILL.
J. SURVEY REQUIREMENTS:
1. THE CONTRACTOR SHALL BE RESPONSIBLE FOR ALL SURVEYING REQUIRED BY
THE CONSTRUCTION DOCUMENTS. THIS SHALL INCLUDE BUT NOT BE LIMITED TO
THE FOLLOWING: GRADING, RISER STRUCTURE, BARREL, AND ENERGY DISSIPATERS,
ETC.
2. THE CONTRACTOR SHALL BE RESPONSIBLE FOR A FINAL AS -BUILT SURVEY OF
THE POND. THE AS -BUILT SURVEY SHALL INCLUDE THE FOLLOWING ITEMS AS
THEY APPLY:
A. POND/ DAM GRADING WITH 1 FOOT CONTOURS AND SPOT ELEVATIONS
ALONG CENTER TOP OF DAM IN 25 FOOT INTERVALS AND AT LOWEST
POINT
B. TOP OF RISER ELEVATION (ALL 4 CORNERS) AND UPSTREAM AND
DOWNSTREAM INVERTS OF BARREL
C. INVERT OF DRAW DOWN PIPES AND BOTTOM DRAIN
D. INVERT AND WIDTH OF EMERGENCY SPILLWAY
E. BOTTOM OF POND ELEVATION
F. LOCATION AND DIMENSIONS OF RIP RAP DISSIPATER PAD(S)
3. IF THE AS -BUILT SURVEY DOES NOT COMPLY WITH THE CONSTRUCTION
DOCUMENTS THE CONTRACTOR WILL BE REQUIRED TO CORRECT THE DEFICIENT
ITEMS AND WILL BE RESPONSIBLE FOR REVISING THE AS -BUILT SURVEY.
4. PROVIDE AN AUTOCAD DRAWING AND SEALED HARDCOPY BY A REGISTERED LAND
SURVEYOR OF THE FINAL AS BUILT SURVEY TO ENGINEER.
K. PERMANENT SEEDING
ALL DISTURBED AREAS TO BE SEEDED WITH AN EVEN MIXTURE OF REBEL II,
FALCON AND JAGUAR FINE FESCUES AT A RATE OF 5-6 LBS./1,000 S.F. SO AS
TO PRODUCE A THICK, FIRM STAND OF GRASS. FERTILIZE AT A RATE OF 10
LBS./1,000 S.F. WITH A SLOW-RELEASE FERTILIZER (USE STRAW AND ASPHALT
EMULSION TO COVER SEED UNTIL STABLE.) APPLY LIME ACCORDING TO SOIL TEST,
OR APPLY 4,000 LBS./ACRE SLOW-RELEASE PELLETIZED AGRICULTURAL LIMESTONE.
SEEDING DATES: AUG. 20 THROUGH OCT. 25 AND FEB. 1 THROUGH MAY.
SEEDBED PREPARATION:
1. REMOVE ANY UNDESIRABLE GROUND COVERS INCLUDING ANY TEMPORARY
SEEDING.
2. RIP THE AREA TO BE SEEDED TO A MIN. DEPTH OF 4"-6."
3. REMOVE ALL LOOSE ROCKS, ROOTS, ETC. LEAVING SURFACE SMOOTH AND
UNIFORM.
4. APPLY SEED, AGRICULTURAL LIME, AND FERTILIZER UNIFORMLY AND MIX WITH
THE SOIL.
5. MULCH IMMEDIATELY AFTER SEEDING AND ANCHOR MULCH.
6. ESTABLISH FULL STAND OF GRASS, RESEEDING MAY BE NECESSARY.
L. CONSTRUCTION SEQUENCE
I. EXCAVATE THE CUT-OFF TRENCH AND BACKFILL WITH APPROVED MATERIAL TO
A MINIMUM OF 1 -FOOT ABOVE THE TOP OF BARREL.
2. TRENCH THROUGH CUT-OFF TRENCH MATERIAL AND INSTALL THE BARREL.
3. INSTALL THE SEEPAGE DIAPHRAGM AROUND THE BARREL.
4. BACKFILL THE BARREL AND DAM TO THE ELEVATIONS SHOWN ON C-5.1.
5. INSTALL THE RISER, COLLAR AND BOTTOM DRAIN TO ATTACH THE THE EROSION
CONTROL SKIMMER.
6. COMPLETE THE DAM FILL AND POND EXCAVATION.
7. INSTALL POND LINER.
8. EXCAVATE THE EMERGENCY SPILLWAY.
9. INSTALL THE TRASH RACK.
10. SEED AND MULCH ALL DISTURBED AREAS.
11. PLAN VEGETATED BENCH.
M. SOIL POND LINER SPECIFICATION AND PERFORMANCE
1.THE SOIL POND LINER SHALL HAVE A MAXIMUM
PERMEABILITY RATE OF 1 X10-5 CM/SEC (0.01 "/HR).
THE POND LINER MATERIAL SHALL BE A MINIMUM OF
12 -INCHES THICK, GENERALLY RESTRICTED TO THE ML,
MH, SC CL, AND CH SOILS AND COMPACTED TO NOT
LESS THAN 95% OF THE STANDARD PROCTOR MAXIMUM
DRY DENSITY (ASTM D-698) WITH A MOISTURE CONTENT
WITHIN 2% DRY TO 5% WET OF THE OPTIMUM UNLESS
OTHERWISE APPROVED BY THE GEOTECHNICAL ENGINEER.
2.THE GEOTECHNICAL ENGINEER SHALL TEST AND CONFIRM
IN WRITING THE SUITABILITY OF THE SOILS IDENTIFIED BY
THE CONTRACTOR FOR USE IN THE LINER.
3.ONSITE SOILS THAT ARE SUITABLE FOR USE IN THE POND
LINER MAY REQUIRE HANDLING MULTIPLE TIMES FOR
DRYING, STOCKPILING AND PLACEMENT.
4.THE POND LINER SHALL FULLY ENCOMPASS THE WETTED
PERIMETER OF THE POND INCLUDING THE BOTTOM AND
SIDE SLOPES. THE LINER IS NOT REQUIRED ON THE
PLANTED SHELF OR ABOVE THE PLANTED SHELF
ELEVATION.
5.COMPLETION OF THE POND AS BUILTS, THE ENGINEER'S
CERTIFICATION, AND THE OWNER OBTAINING A CERTIFICATE
OF OCCUPANCY SHALL NOT RELIEVE THE CONTRACTOR OF
THE RESPONSIBILITY OF ENSURING THE POND MAINTAINS
THE DESIGNED WATER (NORMAL POOL) ELEVATION.
6.THE CONTRACTOR IS RESPONSIBLE FOR NOTIFYING THE
GEOTECHNICAL TESTING COMPANY OF THE DAILY POND
CONSTRUCTION ACTIVITIES TO ENSURE THE REQUIRED
CONSTRUCTION TESTING IS PERFORMED. FAILURE TO
NOTIFY THE GEOTECHNICAL TESTING COMPANY MAY
REQUIRE THE CONTRACTOR TO RECONSTRUCT THE
PORTION OF THE POND THAT WASN'T TESTED AT NO
COST TO THE OWNER.
7.THE WATER ELEVATION WILL BE MONITORED DURING THE
CONTRACTORS CONTRACTUAL WARRANTY PERIOD TO
ENSURE THE NORMAL POOL ELEVATION REMAINS
CONSISTENT WITH RAINFALL AMOUNTS. IF THE POND FAILS
TO MAINTAIN THE PERMANENT POOL THROUGHOUT THE
WARRANTY PERIOD, THE CONTRACTOR SHALL RETURN TO
THE SITE AND PROVIDE REMEDIAL WORK AS NECESSARY
TO CORRECT THE PROBLEM.
POND LINER CONSTRUCTION SEQUENCE
1.NOTIFY THE GEOTECHNICAL ENGINEER THAT THE POND
EXCAVATION IS PROCEEDING.
2.EXCAVATE THE POND BODY TO THE ELEVATIONS SHOWN
ON THE PLANS (PLAN ELEVATIONS WILL BE FINISHED
ELEVATIONS, NOT ELEVATIONS TO BUILD THE LINER FROM)
AND REQUEST THE GEOTECHNICAL ENGINEER PERFORM A
SITE VISIT TO CONFIRM THE SOILS IN THE BOTTOM OF
THE POND ARE CONSISTENT WITH THE GEOTECHNICAL
REPORT AND PROVIDE GUIDANCE ON LINER INSTALLATION.
THE GEOTECHNICAL ENGINEER SHALL ISSUE WRITTEN
CONFIRMATION OF THE EXISTING CONDITIONS AND IF ANY
MODIFICATIONS TO THE SPECIFIED POND LINER ARE
REQUIRED.
3.INSTALL THE POND LINER AS SHOWN ON THE DRAWINGS
AND SPECIFICATIONS.
4.THE GEOTECHNICAL ENGINEER SHALL WITNESS
INSTALLATION AND PERFORM SUFFICIENT TESTS TO
CONFIRM IN WRITING THAT THE POND LINER WAS
CONSTRUCTED IN ACCORDANCE WITH THE PLANS AND
SPECIFICATIONS SPECIFICALLY: MATERIAL CLASSIFICATION,
SUBGRADE CONDITION, THICKNESS, MOISTURE CONTENT,
AND COMPACTION.
5.IF THE POND IS USED AS A TEMPORARY SEDIMENT BASIN
THEN THE LINER SHALL BE INSTALLED AFTER THE
SEDIMENT BASIN IS CONVERTED TO THE PERMANENT
STORMWATER POND.
6.A GEO-TECHNICAL ENGINEER SHALL VERIFY/CERTIFY THAT
THE LINER ONCE INSTALLED IS ACHIEVING A MINIMUM
INFILTRATION OF 0.01 IN/HR PRIOR TO DESIGN
ENGINEERS SUBMITTAL OF AS -BUILT DRAWINGS &
CERTIFICATION OF THE STORMWATER MANAGEMENT SYSTEM.
N. TEMPORARY SEEDING SPECIFICATION
FOR LATE WINTER/EARLY SPRING:
SEEDING MIXTURE
SPECIES: RATE (LB/ACRE):
RYE (GRAIN) 120
ANNUAL LESPEDEZA 50
(KOBE IN PIEDMONT &
COASTAL PLAIN, KOREAN
IN MOUNTAINS)
SEEDING DATES
MOUNTAINS --FEB. 1 - MAY 1
PIEDMONT --JAN. 1 - MAY 1
COASTAL PLAIN --DEC. 1 - APR. 15
SOIL AMENDMENTS
FOLLOW RECOMMENDATIONS OF SOIL TESTS OR APPLY 2,000 LB/ACRE
GROUND AGRICULTURAL LIMESTONE AND 750 LB/ACRE 10-10-10
AOCH
RLIaDRb LB/ACRE STRAW. ANCHOR STRAW BY TACKING WITH
ASPHALT, NETTING, OR A MULCH ANCHORING TOOL. A DISK WITH
BLADES SET NEARLY STRAIGHT CAN BE USED AS A MULCH ANCHORING
TOOL.
MAINTENANCE
REFERTILIZE IF GROWTH IS NOT FULLY ADEQUATE. RESEED, REFERTILIZE
AND MULCH IMMEDIATELY FOLLOWING EROSION OR OTHER DAMAGE.
FOR SUMMER:
SEEDING MIXTURE
SPECIES: RATE (LB/ACRE):
GERMAN MILLET 40
IN THE PIEDMONT AND MOUNTAINS, A SMALL -STEMMED SUDAN GRASS
MAY BE SUBSTITUTED AT A RATE OF 50 LB/ACRE.
SEEDING DATES
MOUNTAINS --MAY 15 - AUG. 15
PIEDMONT --MAY 1 - AUG. 15
COASTAL PLAIN --APR. 15 - AUG. 15
SOIL AMENDMENTS
FOLLOW RECOMMENDATIONS OF SOIL TESTS OR APPLY 2,000 LB/ACRE
GROUND AGRICULTURAL LIMESTONE AND 750 LB/ACRE 10-10-10
FERTILIZER.
MULCH
APPLY 4,000 LB/ACRE STRAW. ANCHOR STRAW BY TACKING WITH
ASPHALT, NETTING, OR A MULCH ANCHORING TOOL. a DISK WITH BLADES
SET NEARLY STRAIGHT CAN BE USED AS A MULCH ANCHORING TOOL.
MAINTENANCE
REFERTILIZE IF GROWTH IS NOT FULLY ADEQUATE. RESEED, REFERTILIZE
AND MULCH IMMEDIATELY FOLLOWING EROSION OR OTHER DAMAGE.
FOR FALL:
SEEDING MIXTURE
SPECIES: RATE (LB/ACRE):
RYE (GRAIN) 120
SEEDING DATES
MOUNTAINS --AUG. 15 - DEC. 15
PIEDMONT AND COASTAL PLAIN --AUG. 15 - DEC. 30
SOIL AMENDMENTS
FOLLOW RECOMMENDATIONS OF SOIL TESTS OR APPLY 2,000 LB/ACRE
GROUND AGRICULTURAL LIMESTONE AND 1,000 LB/ACRE 10-10-10
FERTILIZER.
MULCH
APPLY 4,000 LB/ACRE STRAW. ANCHOR STRAW BY TACKING WITH
ASPHALT, NETTING, OR A MULCH ANCHORING TOOL. A DISK WITH
BLADES SET NEARLY STRAIGHT CAN BE USED AS A MULCH ANCHORING
TOOL.
MAINTENANCE
REPAIR AND REFERTILIZE DAMAGED AREAS IMMEDIATELY. TOPDRESS WITH
50 LB/ACRE OF NITROGEN IN MARCH. IF IT IS NECESSARY TO EXTEND
TEMPORARY COVER BEYOND JUNE 15, OVERSEED WITH 50 LB/ACRE KOBE
(PIEDMONT AND COASTAL PLAIN) OR KOREAN (MOUNTAINS) LESPEDEZA IN
LATE FEBRUARY OR EARLY MARCH.
SEEDBED PREPARATION:
1. RIP AREA TO BE SEEDED TO A MINIMUM DEPTH OF 4-6 INCHES.
2. REMOVE ALL LOOSE ROCKS, ROOTS, ETC. LEAVING SURFACE SMOOTH
AND UNIFORM.
3. APPLY SEED, AGRICULTURAL LIME, FERTILIZER AND SUPER
PHOSPHATE UNIFORMLY AND MIX WITH THE SOIL.
4. SEED ON A FRESHLY PREPARED SEEDBED AND COVER THE SEED
LIGHTLY WITH SEEDING EQUIPMENT OR CULTIPACK AFTER SEEDING.
5. MULCH IMMEDIATELY AFTER SEEDING AND ANCHOR MULCH.
stimmel
LANDSCAPE ARCHITECTURE
CIVIL ENGINEERING
LAND PLANNING
601 N. TRADE STREET, SUITE 200
WINSTON-SALEM, NC 27101
P: 336.723.1067 F: 336.723.1069
www.stimmelpa.com
SEALS:
NCBEES CERT. NO.: C-1347
N CA
yv0
�7:
SEAL r' -
23552 -
=�L : 3 - 2-7-171 c,?:
PROJECT:
z
0
Cn
Z
O"
z
IIM
�z
0
W �
JW
UJ
U
CLIENT:
CLEMMONS TC, LLC
16501 NORTHCROSS DRIVE
SUITE D
HUNTERSVILLE, NC
28078-5040
DRAWN: CY,WC
DATE: 1/31/2017
REVISIONS:
0 3/27/2017 CITY/VILLAGE/OWNER COMMENTS
JOB. NO: 15-226
SHEET TITLE:
WET
DETENTION
POND
SPECIFI
CATIONS
SCALE: AS NOTED
SHEET NO.:
C-5.5
© STIMMEL ASSOCIATES, P.A.

Water Resource W
Envirommentnl Quality
February 9, 2017
Clemmons Town Center LLC
Attn: Steven Hankins
16501 Northcross Drive, Suite D
Huntersvill'e NC 28078
ROY COOPER
Crnwv'nnr
MICHAEL S. BEGAN
S. JAY ZIMMERMA.N
144 cc l
DWR # 2016-1153
Forsyth County
Subjects Approval of Individual 401 Water Quality Certification with Additional Conditions
Clemmons Town Center Shopping Center
USAGE Action ID. No. SAW -2016-02360
Dear Mr. Hankins:
Attached hereto is a copy of Certification No. WQC004084 issued to Mr. Steven Hankins and
Clemmons Town Center LLC, dated February 9, 2017. Please note that you should get any
other federal, state or local permits before proceeding with the subject project, including
those required by (but not limited to) Sediment and Erosion Control, Non -Discharge, and
Water Supply Watershed regulations.
This approval and its conditions are final and binding unless contested. This Certification can be
contested as provided in General Statute 1506 by filing a written petition for an administrative
hearing to the Office of Administrative Hearings (hereby known as OAH) within sixty (60)
calendar days.
A petition form may be obtained from the OAH at http://www.ncoah.com/ or by calling the OAH
Clerk's Office at [phone] for information. A petition is considered filed when the original
and one (1) copy along with any applicable OAH filing fee is received in the OAH during normal
office hours (Monday through Friday between 8:00am and 5:00pm, excluding official state
holidays).
The petition may be faxed to the OAH at [phone], provided the original and one copy of
the petition along with any applicable OAH filing fee is received by the OAH within five (5)
business days following the faxed transmission.
State of North Carolina I Environmental Quality
450 W. Hanes Mill Road, Suite 300, Winston-Salem, North Carolina 27105
Phone: [phone] l FAX: [phone]

Mailing address for the OAH:
If sending via US Postal Service:
Office of Administrative Hearings
6714 Mail Service Center
Raleigh, NC 27699-6714
Clemmons Town Center
DWR # 16-1153
Individual Certification #WQC004084
Page 2 of 8
!f sending via delivery service (UPS,
FedEx, etc):
Office of Administrative Hearings
1711 New Hope Church Road
Raleigh, NC 27609-6285
One (1) copy of the petition must also be served to DENR:
William F. Lane, General Counsel
Department of Environment and Natural Resources
1601 Mail Service Center
Raleigh, NC 27699-1601
Unless such a petition is filed, this Certification shall be final and binding.
This certification completes the review of the Division under section 401 of the Clean Water Act
and 15A NCAC 02H.0500. Contact Sue Homewood at 36-776-9693 or
[e-mail] if you have any questions or concerns.
Sincerely,
WNd
Karen Higgins, Supery s
401 & Buffer Permitting Unit
ENCLOSURES
cc: Brad Luckey, Pilot Environmental Inc (via email)
Jean Gibby, USACE Raleigh Regulatory Field Office (via email)
Todd Bowers, EPA, Sam Nunn Federal Center, 61 Forsyth Street SW, Atlanta, GA 30303
DWR WSRO 401 file
DWR 401 & Buffer Permitting Unit file
File name: 161153CIemmonsTownCenter(Forsyth)_401_IC

Clemmons Town Center
DWR # 16-1153
Individual Certification #WQC004084
Page 3 of 8
NORTH CAROLINA 401 WATER QUALITY CERTIFICATION
CERTIFICATION #WQC004084 is issued in conformity with the requirements of Section 401, Public
Laws 92-500 and 95-217 of the United States and subject to North Carolina's Regulations in 15
NCAC 02H .0500 to Mr. Steven Hankins and Clemmons Town Center LLC, who have authorization
for the impacts listed below, as described within your application received by the N.C. Division of
Water Resources (Division) on November 21, 2016 and subsequent information on January 23,
2017, and by Public Notice issued by the U. S. Army Corps of Engineers and received by the Division
on December 7, 2016.
The State of North Carolina certifies that this activity will not violate the applicable portions of
Sections 301, 302, 303, 306, 307 of the Public Laws 92-500 and PL 95-217 if conducted in
accordance with the application, the supporting documentation, and conditions hereinafter set
forth.
This approval requires you to follow the conditions listed in the certification below.
Conditions of Certification:
1. The following impacts are hereby approved provided that all of the other specific conditions
of the Certification are met. No other impacts are approved, including incidental impacts.
[15A NCAC 02H .0506(b) and/or (c)]
Type of Impact
Amount Approved
(units)
Permanent
Amount Approved
(units)
Temporary
Stream
Site SA (intermittent)
574 (linear feet)
0 (linear feet)
Site SB (perennial)
19 (linear feet)
0 (linear feet)
Site SC (perennial)
44 (linear feet)
12 (linear feet)
404/401 Wetlands
Site WA
0.054 (acres)
0 (acres)
Site WC
0.0345 (acres)
0.0003 (acres)
Site WC (conversion)
0.0167(acres)
0 (acres)
2. This approval is for the purpose and design described in your application. The plans and
specifications for this project are incorporated by reference as part of the Certification. If you
change your project, you must notify the Division and you may be required to submit a new
application package with the appropriate fee. If the property is sold, the new owner must be
given a copy of this approval letter and General Certification(s)/Permit/Authorization and is
responsible for complying with all conditions. [15A NCAC 02H .0507(d)(2)]

Clemmons Town Center
DWR # 16-1153
Individual Certification #WQC004084
Page 4 of 8
3. You are required to provide a digital copy of the approved stormwater management plan
(SMP), including plan details on full-sized plan sheets, with proof of the Village of Clemmons's
approval. The approved SMP shall be submitted to Sue Homewood of the DWR Winston
Salem Regional Office ([e-mail]) before any impacts authorized in this
certification occur. After it is approved, the SMP may not be modified without prior written
authorization from the Village of Clemmons. If modified, a digital copy of the approval letter
and modified SMP shall again be submitted to the DWR (at the email address above) prior to
the commencement of the modifications. [15A NCAC 02H .0506(b)(5)]
4. The Winston-Salem Regional Office shall be notified in writing once construction at the
approved impact areas has commenced. [15A NCAC 02H .0507 (c) and 15A NCAC 02H .0502
(e)]
5. Stream SA (61 linear feet) and Wetland WA (1,685 square feet) downstream of impact areas,
shall be visually monitored by Clemmons Town Center LLC for loss of hydrologic function and
flow, and to determine if the stream and wetland continue to provide aquatic life propagation
and biological integrity per required in North Carolina Administrative Code 15A NCAC 2B
.0211(1) and 15A NCAC 2B .0231. Monitoring of Wetland WA shall occur in the area
identified in the attached drawing from Stimmel and dated February 8, 2017. Monitoring
shall begin at the time upstream impacts/fill occurs and shall continue for a minimum of two
years or until hydrologic function and stability is determined by the Division of Water
Resources, whichever is longer. Annual reports of visual monitoring and photographic
documentation shall be submitted to the Winston-Salem Regional Office on June 1 of each
year.
6. All retained wetlands, streams, surface waters, and riparian buffers located within 50 feet of
the construction area on the project site shall be clearly marked (example- orange fabric
fencing) prior to any land disturbing activities and must be maintained on the property until
the project phase is completed. [15A NCAC 02H.0506 (b)(2) and (c)(2) and 15A NCAC 02H
.0507 (c)]
7. No waste, spoil, solids, or fill of any kind shall occur in wetlands, waters, or riparian areas
beyond the footprint of the impacts depicted in the Pre -Construction Notification for this
project. All construction activities, including the design, installation, operation, and
maintenance of sediment and erosion control Best Management Practices shall be performed
so that no violations of state water quality standards, statutes, or rules occur. Approved
plans and specifications for this project are incorporated by reference and are enforceable
parts of this permit. [15A NCAC 02H.0501 and .0502]
8. Erosion and sediment control practices must be in full compliance with all specifications
governing the proper design, installation and operation and maintenance of such Best
Management Practices. If applicable, the project must comply with the specific conditions
and requirements of the NPDES Construction Stormwater Permit issued to the site and the
following requirements [15A NCAC 02H .0506(b)(3) and (c)(3)]:

Clemmons Town Center
DWR # 16-1153
Individual Certification #WQC004084
Page 5 of 8
a. Design, installation, operation, and maintenance of the sediment and erosion control
measures must be such that they equal or exceed the requirements specified in the
most recent version of the North Carolina Sediment and Erosion Control Manual. The
devices shall be maintained on all construction sites, borrow sites, and waste pile
(spoil) projects, including contractor -owned or leased borrow pits associated with the
project.
b. For borrow pit sites, the erosion and sediment control measures must be designed,
installed, operated, and maintained in accordance with the most recent version of the
North Carolina Surface Mining Manual.
c. Reclamation measures and implementation must comply with the reclamation in
accordance with the requirements of the Sedimentation Pollution Control Act and the
Mining Act of 1971.
d. Sufficient materials required for stabilization and/or repair of erosion control
measures and stormwater routing and treatment shall be on site at all times.
9. Sediment and erosion control measures shall not be placed in wetlands or waters. Exceptions
to this condition require application submittal to and written approval by the Division. If
placement of sediment and erosion control devices in wetlands and waters is unavoidable,
then design and placement of temporary erosion control measures shall not be conducted in
a manner that may result in dis-equilibrium of wetlands, stream beds, or banks, adjacent to or
upstream and downstream of the above structures. All sediment and erosion control devices
shall be removed and the natural grade restored within two (2) months of the date that the
Division of Energy, Mineral and Land Resources (DEMLR) or locally delegated program has
released the specific area within the project. [15A NCAC 02H .0501 and .05021
10. An NPDES Construction Stormwater Permit is required for construction projects that disturb
one (1) or more acres of land. This Permit allows stormwater to be discharged during land
disturbing construction activities as stipulated in the conditions of the permit. If your project
is covered by this permit, full compliance with permit conditions including the erosion &
sedimentation control plan, inspections and maintenance, self-monitoring, record keeping
and reporting requirements is required. A copy of the general permit (NCG010000),
inspection log sheets, and other information may be found at:
http://portal.ncdenr.org/web/wq/ws/su/npdessw#tab-w. 15A NCAC 02H .0506(b)(5) and
(c)(5)]
11. All work in or adjacent to stream waters shall be conducted so that the flowing stream does not
come in contact with the disturbed area. Approved best management practices from the most
current version of the NC Sediment and Erosion Control Manual, or the NC DOT Construction
and Maintenance Activities Manual, such as sandbags, rock berms, cofferdams, and other
diversion structures shall be used to minimize excavation in flowing water. [15A NCAC 02H
.0506(b)(3) and (c)(3)]

Clemmons Town Center
DWR # 16-1153
Individual Certification #WQC004084
Page 6 of 8
12. If concrete is used during the construction, then all necessary measures shall be taken to
prevent direct contact between uncured or curing concrete and waters of the state. Water that
inadvertently contacts uncured concrete shall not be discharged to waters of the state due to
the potential for elevated pH and possible aquatic life/fish kills. [15A NCAC 02B.0200]
13. Culverts required for this project shall be installed in such a manner that the original stream
profiles are not altered and to allow for aquatic life movement during low flows. Existing
stream dimensions (including the cross section dimensions, pattern and longitudinal profile)
must be maintained above and below locations of each culvert. [15A NCAC 02H .0506(b)(2) and
km
Placement of culverts and other structures in waters, streams must be below the elevation of
the streambed by one (1) foot for all culverts with a diameter greater than 48 inches, and 20
percent of the culvert diameter for culverts having a diameter less than 48 inches, to allow
low flow passage of water and aquatic life.
Installation of culverts in wetlands must ensure continuity of water movement and be
designed to adequately accommodate high water or flood conditions. Additionally, when
roadways, causeways, or other fill projects are constructed across FEMA -designated
floodways or wetlands, openings such as culverts or bridges must be provided to maintain the
natural hydrology of the system as well as prevent constriction of the floodway that may
result in destabilization of streams or wetlands.
The establishment of native, woody vegetation and other soft stream bank stabilization
techniques must be used where practicable instead of rip rap or other bank hardening
methods.
14. All temporary fill and culverts shall be removed and the impacted area returned to natural
conditions, within 60 days of the determination that the temporary impact is no longer
necessary. The impacted areas shall be restored to original grade, including each stream's
original cross sectional dimensions, plan form pattern, and longitudinal bed and bed profile,
and the various sites shall be stabilized with natural woody vegetation (except approved
maintenance areas) and restored to prevent erosion. [15A NCAC 02H .0506(b)(2) and (c)(2)]
15. All temporary pipes/culverts/riprap pads etc, shall be installed in all streams as outlined in the
most recent edition of the North Carolina Sediment and Erosion Control Planning and Design
Manual so as not to restrict stream flow or cause dis-equilibrium. [15A NCAC 02H .0506(b)(2)
and (c)(2)]
16. Any riprap required for proper culvert placement, stream stabilization, or restoration of
temporarily disturbed areas shall be restricted to the area directly impacted by the approved
construction activity. All riprap shall be buried and/or "keyed in" such that the original stream
elevation and streambank contours are restored and maintained. Placement of riprap or other
approved materials shall not result in de -stabilization of the stream bed or banks upstream or
downstream of the area. [15A NCAC 02H .0506(b)(2)]

Clemmons Town Center
DW R # 16-1153
Individual Certification #WQC004084
Page 7 of 8
17. Any riprap used for stream stabilization shall be of a size and density to prevent movement by
wave action, current action, or stream flows and consist of clean rock or masonry material free
of debris or toxic pollutants. Riprap shall not be installed in the streambed except in specific
areas required for velocity control and to ensure integrity of bank stabilization measures. [15A
NCAC 02H .0506(b)(2)]
18. A one-time application of fertilizer to re-establish vegetation is allowed in disturbed areas
including riparian buffers, but is restricted to no closer than 10 feet from top of bank of
streams. Any fertilizer application must comply with all other Federal, State and Local
regulations. [15A NCAC 02B.0231]
19. This Certification does not relieve the applicant of the responsibility to obtain all other required
Federal, State, or Local approvals.
20. Steven Hankins and Clemmons Town Center LLC shall conduct construction activities in a
manner consistent with State water quality standards (including any requirements resulting
from compliance with section 303(d) of the Clean Water Act) and any other appropriate
requirements of State and Federal law. [15A NCAC 026 .0200] If the Division determines that
such standards or laws are not being met (including the failure to sustain a designated or
achieved use) or that State or federal law is being violated, or that further conditions are
necessary to assure compliance, the Division may reevaluate and modify this Certification.
Before modifying the Certification, the Division shall notify Steven Hankins and Clemmons Town
Center LLC and the U.S. Army Corps of Engineers, provide public notice in accordance with 15A
NCAC 02H .0503 and provide opportunity for public hearing in accordance with 15A NCAC 02H
.0504. Any new or revised conditions shall be provided to Steven Hankins and Clemmons Town
Center LLC in writing, shall be provided to the U.S. Army Corps of Engineers for reference in any
Permit issued pursuant to Section 404 of the Clean Water Act, and shall also become conditions
of the 404 Permit for the project.
21. This approval is for the purpose and design described in your application and as described in
the Public Notice. The plans and specifications for this project are incorporated by reference
and are an enforceable part of the Certification. If you change your project, you must notify the
Division and you may be required to submit a new application package with the appropriate
fee. If the property is sold, the new owner must be given a copy of this Certification and is
responsible for complying with all conditions. Any new owner must notify the Division and
request the Certification be issued in their name. [15A NCAC 02H .0501 and .0502]
22. This certification grants permission to the director or an authorized representative of the
Director, upon the presentation of proper credentials, to enter the property during normal
business hours. [15A NCAC Q2H .0502(e))

Clemmons Town Center
DWR # 16-1153
Individual Certification #WQC004084
Page 8 of 8
This approval to proceed with your proposed impacts or to conduct impacts to waters as
depicted in your application shall expire upon expiration of the 404 or CAMA Permit. The
conditions in effect on the date of issuance shall remain in effect for the life of the project,
regardless of the expiration date of this Certification. [15A NCAC 02H .0507(d)(2) and 15A NCAC
02H.05061
Non-compliance with or violation of the conditions herein set forth may result in revocation of
this Certification and may also result in criminal and/or civil penalties.
This the 91" day of February 2017
Karen Higgins, Supervisor
401 & Buffer Permitting Branch
KAH/s1h

3
3
CLEMMONS TOWN
CENTER PROPERTY
A�
�0OF ADJOINING
PROPERTY
�cF
o��LF
ADJOINING
PROPERTY
Clemmons Town
Center
OUTLINE OF
WETLAND/STREAM
ClemmonsLNC2/8/2017
Combined Wetlands Impacts
DOWN -GRADIENT
for Clemmons Town Center &
CLEMEMMONS TOWNN
CENTER AREA
Village Point Drive
61 LF OF STREAM
1,685 SF OF WETLANDS
Prepared for:
Hankins Land &Investment Company, LLC
16501 Northcross Drive
Suite D
Huntersville, NC 28078-5040
704-650-3964
Project #: 15-226
Prepared by:
7 stimmel'EE ni.
67
LANDSCAPE ARCHITECTURE CIVIL ENGINEERIRG LUNO PLANNING
SCALE: 1" = 40'
40 0 40
North