SW6091005_APPROVED PLANS_20091202

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW �OD9/ODS�
DOC TYPE
❑ CURRENT PERMIT
APPROVED PLANS
❑ HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE
YYYYM M DD

3:1
CONSTRUCTION SPECIFICATIONS
1. Earthen spillways - install the spillway In undisturbed wall to the greatest
extent poesible. The achievement of planned elevations, grade, design width,
and entrance and exit channel slopes are critical to the successful operation
of the spillway. The spillway should be lined with laminated plastic or
Impermeable geotextils fabric. The fabric must be wide and long enough to
cover the bottom and skies and extend onto the top of the dam for anchoring
in a trench. The edges may be secured with B-Inch staples or pins. The fabric
must be long enough to extend down the elope and exit onto stable ground.
The width of the fabric must be one piece, not joined or plkxd. otherwise
water can get under the fabric, If the length of the fabric is Insufficient for the
entire length of the spillway, multiple sections. spanning the complete wkfth,
may be used. The upper section(*) should overlap the lower section(,) so
that water cannot flow under the fabric. Secure the upper edge and sides
of the fabric In a trench with staples or pins. (Adopted from A Manual for
Designing, Inwt�Hfia and Maintaining Sktnmer Sediment Basins. ' Fsbruay,
t1199. J.W. Falydolh & Son.).
Typ.
TYPICAL 200 SQ.FT. PLANTING DIAGRAM - 10:1 Slope
N.T.S.
PLANTING SPECIFICATION
SYMBOL
LOCATION
BOTANICAL NAME
COMMON NAME
$1
SHALLOW LAND
Callicarpa americans (1 Gd.Shrub)
Beauty berry
p2
SHALLOW LAND
Cyrillo racemifloro (1 Gal.Shrub)
Till
#3
SHALLOW LAND
Clethra olnifolia (1 Gal.Shrub)
Sweet pepper bush
#4
SHALLOW LAND
Myrica cerifera ( tbl.)
Wax myrtle
#5
SHALLOW LAND
Voccinium corymbosum (1 Gal.Shrub)
Highbush blueberry
/6
SHALLOW WATER
Leereia oryzoldes (Plug)
Rice cutgrass
#7
SHALLOW WATER
Juncus effuses (Plug)
Soft rush
#8
SHALLOW WATER
Canna floccida (Br.)
Yellow conna
#9
SHALLOW WATER
Chosmanthium lotifulium (Plug)
River oats
j10
SHALLOW WATER
Accrue calamus (Qt.)
Sweet flag
PLANTING SPECIFICATION and MAINTENANCE NOTES
1. Plants shall be as listed or approved equal depending on availability of locally grown plants and
time of year planted.
2. Plants shall be free of noxious weeds.
3. Plants shall not be allowed to dry out before planting. Care shall be taken to keep the transplants
watered and shaded during transport and storage before installation.
4. Permanent planting shall be done between April 15th and June 30th to allow at least four months
growth prior to the average first frost.
5. Temporary planting to prevent erosion shall be in accordance with current NCDOT guidelines.
6. Prior to planting, the area shall be treated with a non -selective herbicide according to the
manufacturers directions to provide a weed free planting area.
7. Soils shall be tested and, only if needed, fertilized prior to planting.
8. Upon completion of planting, the areas shall be watered as needed to provide adequate moisture. If
water levels within the basins are at or near the permanent pool elevation, additional watering may
not be required.
9. Weed control is essential to successful establishment of the plantings. During the first two growing
seasons, undesirable plants shall be removed by hand, or by wicking the weeds with approved
chemicals. The local extension agent can recommend the most effective methods.
10. Plantings shall be inspected at least once during the growing season. Any areas in which the
plantings have not established full ground cover after the first growing season, or which become
damaged in subsequent years, shall be replanted according to the planting plan and schedule.
Wet Detention Basin Schedule
Level i 3:1 Level
Water Quality Elev. (See Schedule)
PERM. POOL (See Schedule)
BOTTOM (See Schedule;
Junction Box
Rip -Rap Dissipator
w/Filter Fabric
(63 Tons)
Water Quality Elev.
-'-" BOTTOM "182.00
PVC
6' P
WEIR - FRONT VIEW
N.T.S.
2:1
ace7 Stone
of Weir-6'
2
�1
2', 5'
3:1 I Level
3:1
Water Quality EL.
Top of Riser(See Schedule)
Top of Vegetated Bench
Perm. Pool (See Schedule) 1
SQUARE CONCRETE ANTI -SEEP
1 COLLAR. MINIMUM 2500 PSI
CONCRETE DIMENSIONS 2De
SQUARE X I8" THICK.
B' THICK
_T/2 Pipe
O.D.
SCHEDULE FOR INVERT)
2
ForeBoy Area 1 2
Sediment Storage
(12" minimum)
Weir
(To be installed after
site is stabilized and
sediment is removed)
® _1/2 Pipe O.D.
TYPICAL ANTI -SEEP COLLAR
NTS
Drawdown Pipe
(See Schedule)
8"� Riser Wall
Weld to Riser Wall
f(continuous)
Note:
>rht Pool Elevation
All pipe and fittings
Flange to be aluminum.
Blind Flange
with Drilled Orifice
DRAWDOWN ASSEMBLY (BASIN MOUNTED)
N.T.S.
Top of 10'
Bottom of
Wide
10' Wide
Top of
Bottom of
Top of Riser
Permanent
Drawdown
Emergency
Vegetatived
Vegetatived
Sediment
Basin
Riser
(Water Quality
Barrel
Barrel Imert
Barrel
Pool
Drawdown
Orifice
Spillway
Emergency
Basin
Top of Dike
Shelf (Feet
Shelf (Feet
Storage (Feet
(Feet
Diameter
Elevation)
Diameter
(@ Riser)
Length
Elevation
Pipe Size
Diameter
Elevation
Spillway
Number
(Feet MSL)
MSL)
MSL)
MSL)
MSL)
(Inches)
(Feet MSL)
(Inches)
(Feet MSL)
(Feet)
(Feet MSL)
(Inches)
(Inches)
(Feet MSL)
Width (Feet
Basin 1
182.50
177.90
169.90
171.40
170.40
1 54
178.90
1 36
174.00
1 113
177.40
4
1 2.50
181.10
25
Basin 2
181.25
177.00
176.00
170.50
169.50
54
178.50
36
172.50
93
176.50
4
2.25
180.15
25
Basin 3
175.00
172.00
171.00
166.00
165.00
36
172.50
15
168.00
100
171.50
4
1.00
173.00
10
PERSPECTIVE
VIEW
NTS
NOTE:
SEE SEDIMENT BASIN SCHEDULE ON
SHEET 4 OF 17 (EROSION CONTROL
PLAN) FOR SKIMMER SIZE AND
ORIFICE DIAMETER
SELECT FILL
PLACED IN LAYERS
AND COMPACTED
TRASH
RACK
10:1
3:1
10'
MIN.
CORRIGATED ALUMINUM PIPE a 0.50S
EMERGENCY SPILLWAY
(IN STABLE SOIL)
1.5' FREEBOARD MIN.
EMBANKMWT STABILIZED
WITH VEGETATION
ic �
2:1 MIN.
`ANTI -SEEP \
ANTI -FLOATATION COLLAR CUT-OFF TRENCH
CONCRETE 2' DEEP
2500 PSI MIN
(See Schedule for Size)
SEDIMENT/DETENTION BASIN DETAIL
NTS
1 PERMANENT POOL AREA
(SEE SCHEDULE FOR ELEVATIONS)
Sediment Storage _
(12" minimum)
C: +laTi9
TRASH
RISE
(S
1. PLACE ANTI -SEEP COLLAR
AS SPECIFIED IN PROFILE
OR NO MORE THAN 10' DOWN-
STREAM OF THE CENTERLINE
OF THE EMBANKMENT.
Drawdown Assembly
(See
Skimmer Assembly (Temr
PERM. POOL (SEE SCHEDULE FOR
SIDE VIEW
N.T. .
DETENTION BASIN DETAIL
N.T.S.
/ Attach Skimmer
to Drain Valve
Flange
Gravel Support
For Skimmer
5 Tons #57 Stone
w lter Fabric
C(be removed after
site is stabilized and
sediment is removed)
STABILIZFD
OUTLET
(RIP -RAP)
W/TRASH RACK3
/
F
LEVEL PORTION
CREST AND CONTROL SECTION
APPROACH
CHANNEL
;:5: �y{t.:i! Y.;Sv
'a'i"N aY...S i1Y�J.:[ �GI..vRM1
�.•
•,.
BERM I
EXIT SECTOR
EMBANKMENT
NOTE
NEITHER THE LOCATION NOR
ALIGNMENT OF THE CONTROL
4/
SECTION NCIDE
PLAN WITH THEHAS CENTTERLIINNE OF THE
DAM.
X
WATER
I X-LENGTH OF
SURFACE
EXIT CHANNEL
CONTROL SECTION
STAGE (HP)
EXIT SECTOR
L/ CMP o 0.50% (See Schedule for Size)
BARREL INV. OUTB,ARREL INV. OUT
(See Schedule)
Anti -Seep Collar
ANTI -VORTEX
PLATES
Nn-VORTEX
ATES
TOP TRASH RACK ELEVATION
-SET AT EMERGENCY SPILL-
WAY ELEVATION.
-TOP OF RISER ELEVATION
SET AT WATER QUALITY
ELEVATION
NOTE:
CONCRETE ANCHOR 1, BOTH RISER, BARRELL AND TRASH RACK
(See Schedule) SHALL BE CORRIGATED ALUMINUM PIPE
TYPICAL ALUMINUM SEDIMENT BASIN RISER
NTS
VIEW
NTS
SKIMMER DETAILS
NOT TO SCALE
✓C PIPE
PLATE
P
END
VIEW
NTS
APPROACH/ LEVEL OR gam'
CHANNEL GREATER 100•
PROFILE ALONG CENTERLINE
11.0116
CROSS SECTION AT CONTROL SECTION
TYPICAL EXCAVATED EARTH SPILLWAY
NTS
OF DIKE (SEE SCHEDULE FOR ELEVATION)
3
fs0
Rip -Rap Dissipator
w/Filter Fabric
(See Schedule)
SEDIMENT BASINS:
1. SITE PREPARATIONS - CLEAR, GRUB, AND STRIP TOPSOIL FROM AREAS UNDER THE EMBANKMENT TO REMOVE
TREES, VEGETATION, ROOTS, AND OTHER OBJECTIONABLE MATERIAL TO FACILITATE SEDIMENT CLEANOUT AND
RESTORATION, CLEAR THE POOL AREA OF ALL BRUSH, TREES, AND OTHER OBJECTIONABLE MATERIALS. STOCKPILE ALL
TOPSOIL OR SOIL CONTAINING ORGANIC MATTER FOR USE ON THE OUTER SHELL OF THE EMBANKMENT TO FACIUTATE
VEGETATIVE ESTABLISHMENT. PUCE TEMPORARY SEDIMENT CONTROL MEASURES BELOW THE BASIN AS SHOWN.
2 CUT-OFF TRENCH - EXCAVATE A CUT-OFF TRENCH ALONG THE CENTERUNE OF THE EARTH FILL EMBANKMENT. CUT
THE TRENCH TO STABLE SOIL MATERIAL, BUT IN NO CASE MAKE IT LESS THAN 2 FEET DEEP. THE CUT-OFF TRENCH
MUST EXTEND INTO BOTH ABUTMENTS TO AT LEAST THE ELEVATION OF THE RISER CREST. MAKE THE MINIMUM BOTTOM
WIDTH WIDE ENOUGH TO PERMIT OPERATION OF EXCAVATION AND COMPACTION EQUIPMENT BUT IN NO CASE LESS THAN
2 FEET. MAKE SIDE SLOPES OF THE TRENCH NO STEEPER THAN 1:1. COMPACTION REQUIREMENTS ARE THE SAME AS
THOSE FOR THE EMBANKMENT. KEEP THE TRENCH DRY DURING BACKFIWNG AND COMPACTION OPERATIONS.
3. EMBANKMENT - TAKE FILL MATERIAL FROM THE APPROVED AREAS SHOWN ON THE PLANS. SCARIFY ARES ON WHICH
FILL IS TO BE PLACED BEFORE PLACING FILL PLACE FILL MATERIAL IN ACCORDANCE WITH THE SPECIFICATIONS.
CONSTRUCT THE EMBANKMENT TO AN ELEVATION 10% HIGHER THAN THE DESIGN HEIGHT TO ALLOW FOR SETTLING.
4. CONDUIT SPILLWAYS - SECURELY ATTACH THE RISER TO THE BARREL OR BARREL STUB TO MAKE A WATERTIGHT
STRUCTURAL CONNECTION. SECURE ALL CONNECTION BETWEEN BARREL SECTIONS BY WATERTIGHT ASSEMBLIES PUCE
THE BARREL AND RISER ON A FIRM, SMOOTH FOUNDATION OF IMPERVIOUS SOIL DO NOT USE PERVIOUS MATERIAL
SUCH AS SAND, GRAVEL, OR CRUSHED STONE AS BACKFILL AROUND THE PIPE OR ANTI -SEEP COLLARS. PLACE THE
FILL MATERIAL AROUND THE PIPE TO AT LEAST THE SAME DENSITY AS THE ADJACENT EMBANKMENT. CARE MUST BE
TAKEN NOT TO RAISE THE PIPE FROM FIRM CONTACT WITH ITS FOUNDATION WHEN COMPACTING UNDER THE PIPE
HAUNCHES.
PLACE A MINIMUM DEPTH OF 2 FEET OF HAND -COMPACTED BACKFILL OVER THE PIPES SPILLWAY BEFORE CROSSING IT
WITH CONSTRUCTION EQUIPMENT. ANCHOR THE RISER IN PLACE BY CONCRETE IN ACCORDANCE WITH THE SCHEDULE TO
PREVENT FLOTATION. IN NO CASE SHOULD THE PIPE CONDUIT BE INSTALLED BY CUTTING A TRENCH THROUGH THE DAM
AFTER THE EMBANKMENT IS COMPLETE
5. EMERGENCY SPILLWAY - INSTALL THE EMERGENCY SPILLWAY IN UNDISTURBED SOIL TO THE ELEVATIONS, GRADE,
AND DESIGN WIDTH AS SPECIFIED.
6. INLETS - DISCHARGE WATER INTO THE BASIN IN A MANNER TO PREVENT EROSION. USE DIVERSIONS WITH OUTLET
PROTECTION TO DIVERT SEDIMENT -LADEN WATER TO THE UPPER END OF THE POOL AREA TO IMPROVE BASIN TRAP
EFFICIENCY.
7. EROSION CONTROL - CONSTRUCT THE STRUCTURE SO THAT THE DISTURBED AREA IS MINIMIZED. DIVERT SURFACE
WATER AWAY FROM BARE AREAS. COMPLETE THE EMBANKMENT BEFORE THE AREA IS CLEARED. STABILIZE THE
EMERGENCY SPILLWAY EMBANKMENT AND ALL OTHER DISTURBED AREAS ABOVE THE CREST OF THE PRINCIPAL SPILLWAY
IMMEDIATELY AFTER CONSTRUCTION.
MAINTENANCE:
CHECK SEDIMENT BASINS AFTER PERIODS OF SIGNIFICANT RUNOFF. REMOVE SEDIMENT AND RESTORE THE BASIN TO
ITS ORIGINAL DIMENSIONS WHEN SEDIMENT ACCUMULATES TO ONE-HALF THE DESIGN DEPTH.
CHECK THE EMBANKMENT, SPILLWAYS, AND OUTLET FOR EROSION DAMAGE, AND INSPECT THE EMBANKMENT FOR PIPING
AND SETTLEMENT. MAKE ALL NECESSARY REPAIRS IMMEDIATELY. REMOVE ALL TRASH AND OTHER DEBRIS FROM THE
RISER AND POOL AREA.
194 of /7 //12&1"191
QMSTRLIC71ON SPECIFICA-noNS
1. Assemble the skimmer following the manufacturers instnrctlons, or as
2 Lay the assembled skimmer
popne,the bottom of the bask n with the flexible
AN pipe
andtat the Inlet ofpositio n the skimmer over the excavated pit orAttach the �ppo t t to the Be sure W attach
a rope to the skimmer and anchor It to the wide of the basin. This will be used
to pull the skimmer to the wide for maintenance.
MABIIDIANCF.
END CAP Inspect skimmer sediment basins at least weekly and after each significant
Inch or
rainfall em t and
sediment and restore the bur in to its original ldimembns when aill - t
aocumWates to one-half the height of the first baffle. Puff the skimmer to
one wide so that the sediment underneath it can be excavated. Excavate the
swiment from the entire bash, not just around the skimmer or the /let cell.
Make sure vegetation growing in the bottom of the basin does not hold down
the sWmmr.
If the skimmer is dogged with trash and there is water in the basin, usually
jerking an the rope will mace the skknrner bob up and down and dMlodgs
the debris and restore flow. If this does not work, pull the skkanr over to
the side of the basin and remove the debris. Also check the orifice inside the
skimmer to we if R Is dogged; If so remove the debris.
If the skimmer arm or be, pipe is doggW, the oil flw am be removed and
the obstruction cleared with a mbe's snake or by flushing with water. Be
sure and replace the orifice before repositioning the skimmer.
Freezing weather can result in ics forming In the basin. Sane special
ppl �ti ns should be taken In the winter to prevent the skimmer from
DRAWN BY: MKR
CHECKED: JMK, JR.
REVIEWED: JMK, JR.
DATE:
JULY 2009
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BOOK NO
SHEET
14A

W.

VICINITY MAP
N.T.S.
CONSTRUCTION DRAWINGS
for
SECTION FOUR, PART TWO
PROPERTY OF
KAS DEVELOPERS, L.L.C.
PEARCES MILL TOWNSHIP
INDEX OF SHEETS
1. COVER SHEET
2. UTILITY PLAN
3. GRADING & STORM DRAINAGE PLAN
3A-3C. ENLARGED GRADING PLANS
CUMBERLAND CO., N.C.
SEPTEMBER 2009
9A. PLAN & PROFILE EX. SCIPIO LANE (REVISED LOTS & UTILITY SERVICES)
10. PLAN & PROFILE HUNTING BOW COURT
11. PLAN & PROFILE SEWER OUTFALLS "A" & "B"
12. PLAN & PROFILE STORM OUTFALLS "A" & "D"
4. EROSION CONTROL PLAN 13. PLAN & PROFILE STORM OUTFALLS "B" & "C"
5. PLAN & PROFILE SPINNAKER DRIVE 0+00 TO 11+00 14. EROSION CONTROL DETAILS
6. PLAN & PROFILE SPINNAKER DRIVE 11+00 TO 15+16.22 14A. BASIN DETAILS
7. PLAN & PROFILE INDIAN WELLS COURT 0+00 TO 9+00 15. UTILITY & EROSION CONTROL DETAILS
8. PLAN & PROFILE CROSSWINDS DRIVE & BELLGROVE DRIVE 16. UTILITY DETAILS
9. PLAN & PROFILE SCIPIO LANE
17. DRAINAGE, PAVING, & N.C.D.O.T. DETAILS
WER & REITZEL, INC.
'' n S"� ^,-Ca
..eW4 'J � b:�ii.�i
iz/�/zo�9
MOORMAN, KIZER & REITZEL, INC. 115 BROADFOOT AVE. FAYETTEVILLE, N.C.
PHONE [phone] FAX [phone] fell
SHEET 1 OF 17

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