SW6130401_APPROVED PLANS_20130418

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW JL��I
DOC TYPE
❑ CURRENT PERMIT
APPROVED PLANS
HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
YYYYMMDD

11
n
FOREST HILLS SUBDIVISION
P8 22, PG 81
CONNECT TO
EXISTING STORM
SYSTEM
CS-23
RIM:
184.90
INV OUT:
181.55
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k
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YN�
Ufw01
18750
w
h
1"
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~� N2788'30'W 17299'
EXISTING
CEMETERY
- LINE TABLE -
LINE
I BEARING
LENGTH
L1
S282734-E
20.99
- STOC11RM INVERTS -
#
TOP 189.42'
TOP= 188.00
INV IN(SE)= 185.12'
INV IN(SE)= 184.40'
INV OUT(NW)= 184.92'
INV OUT(NW)= 184.30'
CB#2
- SEWER INVERTS -
TOP= 188.58
SSMH111
INV IN(SE)= 184.18'
RIM= 184.97'
INV IN(NE)- 184.18'
INV IN(SW)= 178.67'
INV OUT(NW)= 184.08'
INV OUT(NE)= 177.97'
CB#3
- SIGN LEGEND -
TOP= 185.71'
S1 STREET NAME
INV OUT(NW)= 180.21'
S2 STOP
S3 TOWN DISTRICT
CB#4
S4 SPEED LIMIT
TOP= 185.20'
S5 HIGHWAY 55 WEST
INV IN(SE)= 179.40'
S6 DO NOT ENTER
INV OUT(NW)= 179.20'
S7 DIVIDED HIGHWAY
S8 ONE WAY
CB#5
S9 LANDFILL LEFT
TOP= 184.64'
S10 HIGHWAY SIGNS(5)
INV IN(SE)= 177.44'
S11 WRONG WAY
INV OUT(NE)= 177.24'
S12 HIGHWAY 421 NORTH
S13 NO THRU TRAFFIC
CB#6
S14 DMV RIGHT
TO = 185.69'
S15 DOWNTOWN
INV IN(SE)= 179.39
S16 NO TRUCKS
INV OUT(NE)= 179.29'
S17 NO TRUCK PARKING
& TOP= 187.31 '
INV OUT(SW)= 183.21'
D§
TOP= 187.05'
INV OUT(NW)= 183.45'
YI IP
TOP= 189.13'
INV OUT(NW)= 186.03'
R/W
1
n8
F
ICKSON, TRUSTEE
4SSOCIATES
PG 627
1
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W
N
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N/F
LEE-MOORE OIL COMPANY
08 922, PG 645
/
ON
/
/
- - - - 30' UTILITY EASEMENT
(PB 22, PG 81 & PB 20" PG 811
(SEE TC/4,10)
- - _ - - - L - - - -
o �
FES-01
INV: 181.55
OWNER 1NFORMADON -
,1•.^,�',: BUFFALOE 004LING PARTNER:
PB 2003, PG 811 - TRACT
LF OF DOGHOUSE MH-02 (SEE DETAIL SHEET C-9) DB 2543 PG 619
-15" RCP RIM: 188.14 - AREA SUMMARY -
0 0.50X INV IN: 181.74 6.795 ACRES
INV OUT: 181.74 (TO INFILTRATION BASIN) 295.000 SO. FEET
INV OUT: 181.744 (SEE TC16)
0112
/-167.91 LIMITS OF
DISTURBANCE (TYP.)
LIMITS OF
DISTURBANCE (TYP.)
Bar OVER 6' NGE'
ELE1-19JXV
_ y C802 Q
EXISTING CULVERT ��- 1Be97
1Bees
EXISTING-CA-TCH
- - - - 1 -
__ BASt (TYP) - - - - - -
-
- - - - - - -- -- - --
-lap
US HIGHWA
W. �JAYKSON BLVD
00 VPD)
5 MPH)
GRAPHIC SCALE IN FEET
SCALE 1" = 40 FT
REFER TO SHEET
C-38 FOR DETAILED
GRADING PLAN FOR
\ \'q
OFFSITE ROADWAY
IMPROVEMENTS
\
�4`\\
LIMITS OF
DISTURBANCE (TYP.)
A.
ice\
IG \
RATED PVC \
UN PIPE
,T 0.1OX (TYP.)
'G lb b U '
�y \\ ' a �. •SW G13o�FoI �/u/�c�
\ ORETE BA
CS-
RIM: 2 \\ TSP
NV IN: s1D(C NO T) \ Tsp
INV IN: C N T \
INV OUT. 4.26 . {
% -- 192------�
8'[M
rSSMH
191.31'
INV IN(NW).s 183.81'
INV OUT(SE)a 183.71'
pharmacy
SOUTHERN 11,W-LEFT
CHAFFER DM-THRU
STOREIME11' / WV
W. JACKSON BLVD AND N. 13TH STREET
ERWIN, NC
PROJECT TYPE NEW
DEAL TYPE FEE -FOR -SERVICE
CS PROJECT MOM: 76M
ENGINEER:
O 1 21113
Kimley-Horn
j and Associates, Inc.
CONSULTANT-
KIMLEY-HORN AND ASSOC.
333 FAYETTEVILLE STREET
SUITE 600
RALEIGH, NC 27601
TEL [phone]
FAX [phone]
DEVELOPER
REDDLANDS, INC.
116-103 WILSON PIKE CIR
BRENTWOOD, TN 37027
PH [phone]
FAX [phone]
SEAL:
J��� CAR
SEAL 9r;
032582
•'�����ER "
REVISIONS:
DRAWING BY: JGM
DATE: 05-APRIL-2013
JOB NUMBER: 012426063
TITLE:
GRADING AND
DRAINAGE
SHEET NUMBER:
C-4
COMMENTS:
NOT RELEASED FOR CONSTRUCTION

MR
L
EXIS77NC G
RADE
ANY FILL MATERIAL
USED TO CONSTRUCT
INFILTRATION BASINS
MUST BE CLEAN SAND
WITH LESS THAN 7%
PASSING 200 SIEVE.
15" --
0 0.
TOP OF BASIN 186.00'
CONCRETE CONTROL STRUCTURE (TOP OF RISER = 184.90)
UTILIZE NEENAH GRATE TYPE 4884—A OR APPROVED EQUAL 1
10—YEAR WSEL= 184.89'
s�
F. � 1—YEAR WSEL= 183.51'
�—GEOTEXTILE FILTER FABRIC
INLET PIPE
4" LAYER CLEAN SAND
THICK
NCRETE
ELLS
ATE
SEDIMENT CLEANOUT ELEV: 181.70
SHWT >57" BELOW EXISTING GRADE
INFILTRATION BASIN BMP #1
N.T.S.
SLU I IUN A -A
RCP OUTLET
J.50%
INV=181.55
1
w _—ANY FILL MATERIAL
�oQ USED TO CONSTRUCT
INFILTRATION BASINS
ti MUST BE CLEAN SAND
WITH LESS THAN 7%
PASSING 200 SIEVE.
RCP OUTFALL (REFER TO GRADING
PLAN FOR PROPOSED ELEVATIONS)
INFILTRATION BASIN CONTROL STRUCTURE CS-23
NOT TO SCALE
TOP OF RISER
El EV.=184.90
SECTION B-B
TE
15" RCP OUTLET
0 0.50%
INV=181.55
CONSTRUCTION NOTES
CARE SHOULD BE USED DURING INSTALLATION TO MINIMIZE COMPACTION OF SOIL ON THE BOTTOM AND WALLS OF INFILTRATION DEVICES SINCE THIS WILL REDUCE THE PERMEABILITY AT THE SOIL INTERFACE. TOAVOID
COMPACTING THE DRAINAGE MEDIA, LIGHT EQUIPMENT AND CONSTRUCTION TECHNIQUES THAT MINIMIZE COMPACTION SHOULD BE USED.
RUNOFF SHALL NOT BE DIRECTED INTO AN INFILTRATION DEVICE UNTIL THE DRAINAGE AREA IS STABILIZED.. A CONSTRUCTION SEQUENCE MUST BE FOLLOWED THAT REFLECTS THE NEED TO STABILIZE THE INFILTRATION DEVICE.
THE LONGEVITY OF INFILTRATION DEVICES IS STRONGLY INFLUENCED BY THE CARE TAKEN DURING CONSTRUCTION.
A MINIMUM OF ONE OBSERVATION WELL SHALL BE INCLUDED IN THE DESIGN OF AN INFILTRATION SYSTEM TO PERIODICALLY VERIFY THAT THE DRAINAGE MEDIA IS FULLY DRAINING. THE MONITORING WELL SHALL CONSIST OF A
4—INCH TO 6—INCH DIAMETER, PERFORATED POLYVINYL CHLORIDE (PVC) PIPE WITH A LOCKING CAP. THE WELL SHOULD BE PLACED NEAR THE CENTER OF THE FACILITY OR IN THE GENERAL LOCATION OF THE LOWEST POINT
WITHIN THE FACILITY. WITH THE INVERT AT THE EXCAVATED BOTTOM OF THE FACILITY.
MAINTENANCE NOTES
PLEASE REFER TO SECTION 7.0 OF THE NCDENR STORMWATER BMP MANUAL, GENERAL BMP MAINTENANCE, FOR INFORMATION ON TYPES OF MAINTENANCE, TYPICAL FREQUENCY, AND SPECIFIC MAINTENANCE TASKS THAT ARE
COMMON TO ALL BMPS. THE FOLLOWING INFORMATION IS MAINTENANCE THAT IS SPECIFIC TO INFILTRATION DEVICES.
FOR THE FIRST YEAR OF OPERATION, INSTALLATIONS SHOULD BE INSPECTED MONTHLY AND AFTER EACH MAJOR STORM. AFTER THE FIRST YEAR, QUARTERLY INSPECTIONS, PREFERABLY CONDUCTED AFTER A STORM, ARE
RECOMMENDED.
MAINTENANCE IS VERY IMPORTANT FOR INFILTRATION DEVICES. PROPERTY OWNERS SHOULD BE EDUCATED IN THE FUNCTION AND MAINTENANCE REQUIREMENTS OF INFILTRATION DEVICES. ESPECIALLY IMPORTANT IS THE
MAINTENANCE OF VEGETATED AREAS THAT DRAIN TO THE INFILTRATION SYSTEM. AREAS THAT ARE ALLOWED TO BECOME BARE AND UNVEGETATED WILL CONTRIBUTE EXCESS SEDIMENT TO THE INFILTRATION SYSTEM AND HASTEN
ITS FAILURE. ANY SEDIMENT DEPOSITS IN PRETREATMENT DEVICES SHOULD BE REMOVED AT LEAST ANNUALLY.
THE SURFACE OF INFILTRATION SYSTEMS MUST BE KEPT IN GOOD CONDITION. COLONIZATION BY GRASS OR OTHER PLANTS SHOULD BE DISCOURAGED, SINCE THIS CAN LEAD TO REDUCED SURFACE INFILTRATION RATES. IN
MANY INSTANCES, IT IS CONVENIENT TO COVER INFILTRATION TRENCHES WITH CONCRETE GRID PAVERS OR SIMILAR PERMEABLE PAVING SYSTEMS THAT CAN BE REMOVED EASILY AND REPLACED AS NECESSARY TO SERVICE THE
TRENCH.
IN ORDER TO MONITOR PERFORMANCE OF THE INFILTRATION DEVICE, OBSERVATIONS SHOULD BE CONDUCTED TO DETERMINE HOW LONG IT TAKES RETAINED WATER TO INFILTRATE INTO THE SOIL AFTER A STORM EVENT. THE
DETERMINATION CAN BE MADE IN TWO WAYS. THE MOST INFORMATIVE WAY IS TO READ THE WATER LEVEL SEVERAL TIMES OVER A PERIOD OF DAYS AFTER A LARGE STORM. THE ALTERNATIVE IS A -ONE—STOP-METHOD, WHERE
A SINGLE READING IS TAKEN AND COMPARED WITH THE LOCAL RAINFALL RECORD. ALTHOUGH LESS ACCURATE THAN THE MULTIPLE READING METHOD, THE ONE —STOP METHOD WILL STILL ALLOW SIGNIFICANT DETERIORATION IN
PERFORMANCE TO BE RECOGNIZED.
THE TOP SEVERAL INCHES OF DRAINAGE MEDIA AND THE FILTER CLOTH ALONG THE TOP OF THE DRAINAGE MEDIA SHOULE BE REPLACED ANNUALLY OR AT LEAST WHEN THE DEWATERING TIME IS LONGER THAN 5 DAYS. IF
AFTER REPLACING THE TOP MEDIA THE INFILTRATION RATE IS STILL NOT IN THE ACCEPTABLE RANGE, THE ENTIRE FACILITY MUST BE DISMANTLED AND RECONSTRUCTED.
PROPER DISPOSAL OF THE MATERIALS REMOVED IS NECESSARY; THE AGGREGATE AND CLOTH SHOULD BE APPROPRIATELY PACKAGED AND DELIVERED TO THE LOCAL LANDFILL, IF THE OPERATING AUTHORITY APPROVES THE
DISPOSAL.
INFILTRATION
SODDED SIDE SLOPES AND
BOTTOM
CLASS "C" GEOTEXTILE FABRIC
ALONG SIDE OF RAIN GARDEN
ALONG COMPACTED SUBGRADE
NOTES:
PONDING DEPTH: 12"
UNDERDRAIN TO BE 3/8" PERE 0 6" O.C., 4 HOLES PER
ROW, SLOPED AT 0.10%; MINIMUM OF 3" OF GRAVEL OVER
AND ON EITHER SIDE OF PIPES; GRAVEL NOT NECESSARY
UNDER PIPES.
UNDERDRAIN PIPES AND CLEANOUTS SHOULD BE LOCATED IN
THE QUANTITY AND ELEVATION FOUND ON THE GRADING AND
DRAINAGE PLAN.
SANDY LOAM/LOAMY SAND; FINES SHOULD BE LIMITED TO TWENTY
PERCENT OR LESS PASSING THROUGH A #200 SIEVE. MINIMUM
INFILTRATION RATE = 2"/HR
NATIVE SOIL, NO
SECTION B'-B': UNDERDRAIN
NOT TO SCALE
CAPPED CLEAN OUT, TYP.
TOP 6" ABOVE GRADE.
(VARIES)
BIORETENTION SOIL
MIXTURE PER
SPECIFICATION
L— 4" SCHEDULE 40 PVC, SDR-35,
OR SMOOTH WAL" CORRUGATED
PLASTIC PIPE SLOPED AT 0.10%
WITH 3/8" PERFERATIONS 0 6"
ON CENTER (4 HOLES PER ROW)
SECTION A' -A': UNDERDRAIN
NOT TO SCALE
BIORETENTION SOIL MIXTURE
6" DIA. PVC
UNDERDRAIN PIF
ELEV.=187.50
ITEM
PERCENT BY WEIGHT
MATERIAL
SAND
85-88%
CONSTRUCTION SAND
FINES
-8-12X
SILT AND CLAY
ORGANIC MATTER
3-5X
PEAT MOSS
Bioretention Soil Mixture (BSM): shall be placed and graded using low ground —contact pressure equipment or by excavators 6" DIA. PVC -
and/or backhoes operating on the ground adjacent to the bioretention facility. No heavy equipment shall be used within the UNDERDRAIN PIPE
perimeter of the bioretention facility before, during, or after the placement of the 8SM. The BSM shall be placed in horizontal
layers not to exceed 12 inches for the entire area of the bioretention facility. The BSM shall be compacted by saturating the
entire area of the bioretention facility after each lift of BSM is placed until water flows from the underdrain. Water for
saturation shall be applied by spraying or sprinkling. An appropriate sediment control device shall be used to treat any
sediment —laden water discharged from the underdrain. If the BSM becomes contaminated during the construction of the facility,
the contaminated material shall be removed and replaced with uncontaminated material at no additional cost to the Owner.
Final grading of the BSM shall be performed after a 24—hour settling period. Final elevations shall be within 2 inches of
elevations shown on the Contract Plans.
The Bioretention Soil Mixture (BSM) shall be a uniform mix, free of stones, stumps, roots or other similar objects larger than 6" DIA. PVC
two inches excluding mulch. No other materials or substances shall be mixed or dumped within the bioretention area that may UNDERDRAIN PIPE be harmful to plant growth, or prove a hindrance to the planting or maintenance operations. ELEV.=187.50
Prior to placing the underdrain and the BSM, the bottom of the excavation shall be roto—tilled to a minimum depth of 6 inches
to alleviate any compaction of the facility bottom. Any substitute method for roto—tilling must be approved by the Engineer prior
to use. Any ponded water shall be removed from the bottom of the facility and the soil shall be friable before roto—tilling.
Grass sod shall be used in bioretention area.
Grassed sod must not be grown in soil with an impermeable (clay) layer.
BSM must have a P—index of 10 to 30.
BIORETENTION
;S
[ON
CLASS "C" GEOTExTILE
FABRIC ALONG SIDE OF
RAIN GARDEN ALONG
COMPACTED SUBGRADE
CLASS "Co GEOTEXTILE
FABRIC AROUND WASHED
STONE
#57 STONE (WASHED)
OUTLET
GRATE — US FOUNDRY 4156
TOP OF RISER FRAME AND 6241 GRATE OR
ELEV.=190.92 APPROVED EQUAL
�15" RCP OUTLET
0 0.50%
INV=184.26
SECTION A -A
GRATE
TOP OF RISER
ELEV.=190.92
4'
I� ,a
�15" RCP OUTLET
SECTION B-B NV=184.26
BIORETENTION CONTROL
STRUCTURE CS-04
NOT TO SCALE
IP
M. 1 •1
.w■
S OFE NLWBE 75W
W. JACKSON BLVD AND N. 13TH STREET
ERWIN, NC
PM EM7YPE- NEW
DEAL TYPE FEE -FOR -SERVICE
CS Pf OJECT NLUER: 76M
ENGINEER:
=F1
02013
Kimley-Horn
and Associates, Inc.
CONSULTANT
KIMLEY-HORN AND ASSOC.
333 FAYETTEVILLE STREET
SUITE 600
RALEIGH, NC 27601
TEL [phone]
FAX [phone]
DEVELOPER:
REDDLANDS, INC.
116-103 WILSON PIKE CIR
BRENTWOOD, TN 37027
PH [phone]
FAX [phone]
SEAL"
y 9
SEAL
032582 =
REVISIONS:
DRAWING BY:
DATE:
JOB NUMBER:
TITLE:
STORMWATER
DETAILS
SHEET NUMBER:
C-14-
COMMENTS: