SW8010216_APPROVED PLANS_20010314

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
DOC TYPE ❑CURRENT PERMIT
FAD APPROVED PLANS
HISTORICAL FILE
❑ COMPLIANCE EVALUATION INSPECTION
DOC DATE�_V 16) 3q
YYYYMMDD

SITE, STORMWATER, EROSION CONTROL, AND UTILITY PLANS
for
SHALLOTTE, NORTH CAROLINA
JANUARY 2001
VICINITY MAP
SCALE: I " = 1/2 MILE
UUMFANY9 FsA9
Shallotte, North Carolina 28459
4918 Main Street — P.O. Box 2469
910.754.8029
,1-?.9 1991'r'
ITS
ND EROSION CONTROL PLAN
AND DETAILS
D AREA MAP
FORMWATER DETAILS
AILS
RECEIVED
A P P R LIN ELI FEB 0 9 2001
N'
rT H C 7'01. I i A il:Vo - 1-INMIC N [AL DWI,
T C' 1 "A PROD'01
;
,diSION OF WAT.Ji GIAJ17
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Revisions
SITE AND ZONING DATA
CURRENT ZONING: HB
TOTAL SITE AREA
REGULAR PARKING SPACES PROVIDED
HANDICAP PARKING SPACES PROVIDED
TOTAL PARKING SPACES PROVIDED
a-
J �,
N 83`5434'W
9.83'
N 81'32' 20
N/F
ELBA B. HAWES
N/F
EDWAR➢ SWEATT
POWER I
RUN OF POLEY BRIDGE BRANCH f
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1
PARKING AND PAVEMENT NOTES
4161.
ss
1. ALL SIGNS, PAVEMENT MARKINGS, AND OTHER TRAFFIC CONTROL
1 49,
DEVICES SHALL CONFORM TO THE MANUAL ON UNIFORM TRAFFIC
1 !✓ 1
DEVICES, 1988 EDITION AS AMENDED.
1 �Sq1
2. ALL PAVEMENT MARKINGS SHALL BE PAINTED WHITE ON ASPHALT
PAVEMENT / YELLOW ON CONCRETE PAVEMENT AND SHALL BE
1
FOUR (4) INCHES WIDE UNLESS INDICATED OTHERWISE.
4
1
3, ALL DIMENSIONS ARE TO BACK -OF -CURB UNLESS INDICATED
1
OTHERWISE. ALL CURB RADII ARE TO BE 5' UNLESS
11
INDICATED OTHERWISE.
GENERAL NOTES
4. CONTRACTOR SHALL FURNISH AND INSTALL PAVEMENT MARKINGS
1
AS SHOWN ON THE PLANS.
1,
SURVEY INFORMATION PROVIDED BY SOUTHEAST SURVEYING
` 1
SHALLOTTE, N.C.
1 11
5. CONTRACTOR SHALL COORDINATE THE INSTALLATION OF ALL SIGNS,
PAVEMENT MARKINGS, AND OTHER TRAFFIC CONTROL DEVICES
2,
CONTRACTOR IS TO VERIFY ALL UTILITY LOCATIONS PRIOR
4 1
WITH OTHER CONTRACTORS ON THE SITE.
TO BEGINNING WORK,
11 1
6, JOINTS OR SCORE MARKS ARE TO BE SHARP AND CLEAN WITHOUT
3.
ALL WORK IS TO BE IN ACCORDANCE WITH ALL STATE AND
ti 1
SHOWING EDGES OR MARKING TOOLS.
LOCAL REGULATIONS,
1 ti
1
7, CONTRACTOR SHALL COMPLY WITH ALL PERTINENT PROVISIONS OF
THE 'MANUAL OF ACCIDENT PREVENTION IN CONSTRUCTION',
4.
ALL PERMITS ARE TO BE OBTAINED BY THE CONTRACTOR
1
1 1
ISSUED BY AGC OF AMERICA, INC., AND THE HEALTH AND SAFETY
PRIOR TO THE START OF CONSTRUCTION,
N/F 1
ti DAVID R. MOORE
REGULATIONS FOR CONSTRUCTION ISSUED BY THE U.S. DEPARTMENT
5,
HYDRANT LOCATION SHALL BE APPROVED BY THE LOCAL
1
1
OF LABOR.
FIRE MARSHALL.
1
1
8. CONTRACTOR SHALL FULLY COMPLY WITH THE REQUIREMENTS OF THE
6,
EXISTING UTILITIES ON SITE SHALL BE RELOCATED AS
1
14 ti
SOILS ENGINEER, AS DATED IN THEIR REPORT
REQUIRED. CONTRACTOR SHALL PAY ALL COSTS
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9. ALL IMPROVEMENTS WITHIN NCDOT R,O,W. SHALL COMPLY WITH THE
ASSOCIATED WITH RELOCATION.
1 S
NCDOT STANDARD SPECIFICATIONS.
11 1
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1 1
1 1
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N/F
ELBA B. HAWES
N/F
U.S. POST OFFICE
N/F
WHITE INVESTMENTS
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SPECIAL NOTE:
ALL WORK PERFORMED WITHIN NCDOT
R,O,W, SHALL BE PER NCDOT SPECS AND
SHALL BE INSPECTED FOR COMPLIANCE BY
STATE INSPECTORS AT THEIR DISCRETION,
33 FINAL
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Date: JAN 12 00
Scale: 1 "-30'
Drawn By: SMUUCMR
Checked By: ACi/DBB
THIS PLAN IS NOT ISSUED FOR
ANSTRUCTION WITHOUT AFFIXED
EMBOSSED CORPORATE SEAL.
.�H CARa1
SEAL
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This drawing shall not he reproduced in
whole or in part without written permission
of East Coast Engineering Company, P.A.
Sheet 2 OF 9
ECEC PROJECT NO, 00-0409

5
Revisions
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Date: JAN 16 00
Scale: 1 "=30'
Drawn By; SMH/CMR
Checked By: ACL/DBB
THIS PLAN IS NOT ISSUED FOR
;ONSTRUCTION WITHOUT AFFIXED
EMBOSSED CORPORATE SEAL.
This drawing shall not be reproduced in
whole or in part without written permission
of East Coast Engineering Company, P.A.
7-i -
Sheet 3 OF 9
ECEC PROJECT NO. 00-0409

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This drawing shall not be reproduced in
whole or in part without written permission
C C PROJECT N0. 00-0409
of East Coast Engineering Company, P.A.

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DRAINAGE AREA AND DISTURBED AREA MAP
FOR
CLARENDON
OFFICE PARK
SHALLOTTE,NORTH CAROLINA
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EAST COAST ENGINEERING
COMPANY, P.A.
Shallotte, North Carolina 28459
4918 Main Street - P.O. Box 2469
910.754.8029

I
Revisions
\
2 B1 '
-- -
14
YI1
Il
B
\ .\`
SD15' DP
4.
15" NDPC
-
Ail
PROPOSED TOP F FOREMY
DAM ELEVATIO 14.0' MS
8
"
NORMAL POOL
ELEV,= 15.0' MSL
\`
J f
STORAGE POOL
``
12
ELEV=
16,1' MSL I
\
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fill
PROPOSED OUTLET STRUCTURE
(SEE DETAIL)
LEGEND POND COORDINATES
(A NORMALPoa UEV.)
PT, 1 x r
- -1$- - ExITTING EEI1 aRs 1 1143,M, 1104,1140
2 1125.8694, U078547 r
:� `\ �� %�,p� \\ • !/ '
� 1112,53eo, t097.739I
h� PRIIPOSEO CUNT1111tS
4 1110.4066, 1078,6694\\~'m.
SMIZA(E PIAL 5 IM-4813, 10636518 •`� r
6 1202.8328, 1019,9160
NWHAL P00. 7 1215,3444, 1018.7942
8 1223,6934, ICZ5Z893
9 12253217, 1034.5602
X CWRDDIINATEAL 10 12202945, 1044,7317NMAL
_
11 1097A487, 11/57543 PROPERTY -CORNER
12 124&8400, MUM - X=1276.38
13 1124,B035, 1033.1521 Y=950.3811-
14 1172.0430, 1109-9906
POND PLAN VIEW -
SCALE: V = 20'
SCALE: V = 20!
0 10 20 40 60
SPECIAL NOTES:
1, POND BANKS SHALL BE STABILIZED WITH VIGOROUS GRASS
COVER. (SEE "SEEDING SCHEDULE" ON SHEET *7.)00
2. IN THE EVENT THE STORMWATER POND NEEDS TO BE EMPTIED
ERED
FOR MAINTENANCE ON THER P SE5 A GAS -POW MUD
oo PURPOSES,
HOG TYPE PUMP SHALL BE USED.
STORMWATER POND DATA SUMMARY
AREA DRAINING TO STORMWATER POND, DA
2.335 AC
PROPOSED BUILT -UPON AREA WITHIN POND DRAINAGE AREA, BUA
1.490 AC
BUA TO DA RATIO
0,638
DESIGN TSS REMOVAL
90
PROPOSED DEPTH FROM PERMANENT POOL ELEVATION TO BOTTOM
5 FT
MINIMUM PERMANENT POOL SURFACE AREA TO DA RATIO REQUIRED
9&58
ACTUAL SA TO DA RATIO PROPOSED
Q.0469
POND BOTTON ELEVATION
—�
10.0 FT MSL
PERMANENT (BOTTOM OF ORIFICE) POOL ELEVATION
15.0 FT MSL
TEMPORARY (TOP OF RISER) ELEVATION
16.1 FT MSL
PERMANENT POOL SURFACE AREA
4,772 SQ. FT
TEMPORARY POOL SURFACE AREA
5,828 SQ. FT
VOLUME OF RUNOFF FROM V RAINFALL
5,636 CUBIC FT
STORAGE BETWEEN PERMANENT POOL AND TLt4ffl
5,741 CUBIC FT
SIZE OF ORIFICE
1.125 IN
DRAWDOWN TIME
3.5 DAYS
.j OLLWE_BETWEEN PERMANENT POOL AND BOTTOM IN FOREBAY. VF
3,232 CUBIC FT
VOLUME BETWEEN PERMANENT POOL AND BOTTOM IN FOREBAY &
MAIN POND COMBINED VT
16,096 CUBIC FT
VF / VT
0.184
POOL ELEVATION AT Q10 PEAK RUNOFF
16.6 FT MSL
MINIMUM TOP OF BANK ELEVATION
18.0 FT MSL
30
25
20
10
5
0
30
25
20
10
5
0
24' CULVE
30' RM
INV. OUT
ELEV,=11.0
TOP VIEW OF RISER
i
T
SECTION VIEW
SUPPORTS TO BE ®6 REBAR OR
1/2'xl-1/2'x3/16 ANGLE WELDED
TO TRASH RACK AND RISER
2' TRASH GUARD
42' TRASH GUARD,
COVER TRASH GUARD WITH 4'x4' WELDED WIRE FABRIC
30' RISER
1N\-A3kT lA$AfJ
POND OUTLET STRUCTURE
NOT TO SCALE
T7P OF TRASH GUARD ELEV=16.6 FT
'OP OF RISER ELEV,=16,1 FT
7LEV. BOTTOM OF
-1/8' ORIFICE = 15.0 FT
ELEVA4.5 FT
(BOTTOM OF TRASH GUARD)
INV, IN ELEV.=12.0 FT
W 152.5'
Cz - 132,8' -- - _ w � o
vi a o aCO
97,6 — —� v aW � w -
a- W j PROPOSED GRADE W � w j' ¢ fl o
OF W \O W p !I Li J J ,
Q W. W CL W
CL
Uj ti ——���-----� J-----`----- EXISTING GRADE : �_u � ¢� Uj
_
/-------------------------—��—, —
37 STORAGE POOL ELEV:=_ 16.1 -- _ _-- `a ��
I
\ \ \---------------- ---- --------------------------------------�---•--------------------------------------------------------------------------------------------------:------------------------------~--�------__
1� k
\L L LL > �>/x >>/X �Z\ \/�//x >>/\\/�N 2L >�Z\
< \L/-
??yy 5
NCD❑T CLASS A ER❑SI❑N CONTROL STONE
UNDERLAIN WITH FILTER FABRIC
i
0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170
DISTANCE (FT,)
SECTION A -A
60.1'
2.2'
VEGETATIVE
SHELF 3 �, �' VEGETATIVE
PROPOSED GRADE SHELF
EXISTING GRADE
4 r STORAGE POOL_ELEV,-__I61 g\�
EXIST. DITCH
\Z
0 10 20 30 40 50 60 70 80
➢ISTANCE (FT.)
SECTION B-B
30
25
20
15
10
5
0
90
POND SECTIONS
SCALE: V = 10'
30
25
20
15
10
5
0
IN
Ins, :3
NOT ISSUED ROR CGPIS 1 RUGTIUIN
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Date: JAN 16 00
Scale: AS SHOWN
Drawn By: SMT3/CMR
Checked By: ACL/DMC
THIS PLAN IS NOT ISSUED FOR
ONSTRUCTION WITHOUT AFFIXED
EMBOSSED CORPORATE SEAL.
This drawing shall not be reproduced in
whole or in part without written permission
of East Coast Engineering Company, P.A.
Sheet 6 OF 9
ECEC PROJECT NO. 00-0409

B
EROSION CONTROL and STORMWATER MANAGEMENT NARRATIVE
Revisions
12'MESH WIRE
PLAN VIEW
X57 GLEAN WASHED STONE
PLACE CONCRETE BLOCKS
TWO COURSES HIGH
AROUND INLET
'- PLACE ONE BLOCK OPEN ON
EACH SIDE OF INLET
SECTION VIEW
BLOCK & GRAVEL INLET PROTECTION
NOT TO SCALE
NOTES:
1. VIGOROUS STAND OF PERMANENT GRASS COVER SHALL
BE ESTABLISHED AS SOON AS POSSIBLE ALONG THE
BANKS OF DITCHES AND DISTURBED AREAS. WHERE
DITCH BANKS CANNOT BE ADEQUATELY STABL.IIZED
WITH VEGETATION, AN ARTIFICIAL LINER SUCH AS RIP41AP
SHALL BE USED TO PROTECT BANKS.
2. WHERE SLOPE OF CHANNEL BOTTOM EXCEEDS 15%,
JUTE THATCHING OR OTHER EFFECTIVE CHAN NEL LINING
MATERIAL SHALL BE USED.
r I�
TYPICAL GRASS SWALE
NOT TO SCALE
NCDOT CLASS B
EROSION CONTROL
STONE -
8" TO 12" #57
STONE ON UPSTREAM
FACE INL
h
FILTER M w
FABRIC
SECTION A -A
STONE CHECK DAM
NOT TO SCALE
COARSE AGGREGATE
PLAN VIEW
wN,
6" DIVERSION TO DIRECT RUNOFF FROM RIW
SECTION VIEW
CONSTRUCT ONRENTRA CE
NOT TO SCALE
C- OVERLAP - 9MV UPPER END OF LO„ETI
STRIP AS W •A•ANl'W OVEFLAP FND
OF TOP STRP A ff4rAM AID STAPLE
X"
PLAN VIEW
MANHOLE ACCESS
-nnr+ta�wvtn -�
IEO`D TO ACCOMM
DRAINS AND INLE-
1r #57
IPACTED STONE
!. COMPACTED
suBclMAOE
SECTION B-B SECTION A -A
JUNCTION BOX DETAIL
NOT TO SCALE
STONE WITH D, = 6"
and Dmax = 9" -
TYPICAL CONCRETE FLARED
/_END SECTION AS REQUIRED
UNDERLAY WITH FILTER FABRIC
OUTLET PROTECTION
T TO SCALE
B
A ~, _ A
INLET FRAME AND GRATE (NEENAH R-3W9)
PLACE FILTER FABRIC UNDER
GRATE FOR SEDIMENT CONTROL
�t B
PLAN
A.
.'ooaoo°o°°°o°o°o o°a°°°000000i
moo°°aOa° enooe a o-�apoa000aooa000000 00000a o0o i,:
ap�p°oPpOOPp°p°pP -
SECTION A -A e' STONE BEDDING (MIN.) SECTION B-B
NOTE' SEE PLANS FOR DEPTHS,
PIPE SIZES AND SLOPES
CATCH BASIN DETAIL
NOT TO SCALE
INLET FRAME, GRATE &
CURB BOX (NEENAH R-3246)
STEP REQ'D FOR ONC. GROUT o 0
BOXES > 4' DEEP o 0
010" O.C. © o
4"PERF PVC PIPE W/ o
1 CUBIC YARD °�
CLEAN STONE FILTER GROUT INTERIOR �� o
(4 EACH DRAIN INLET) )HALLS o �,
© 0
PRE -CAST CONCRETE -BOX a
Q �
4 BAR ® 8" O.C.E.w.
NOTE: SEE NCDOT STD. 840.01 D CONC. GROUT
CURB INLET DETAIL
NOT T SCALE
PIPE SIZE VARIES
COMPACTED BACKFILL
r. . to]
MISal I O AL
RL .
• •
Ai THE TOP END OF THE JUTE STRH INA iY
TRI ICH { ACHF3OF YORE W DEMH
D TAMPTHETRENCTI FUu OFSM SECURE /• ..
W HFIDIIIDwa�7ca+�
i WOES DOWN FROM TRENCH.
F. IN ACJ_ STAPLES T A'AR7
' IN ADWIOND PATTERN
D. EROSION STOP - FOLD DF JU7E 8UF1 W - TO KEEP YAT I'm FIAMILY
:MIT TRENW AND TAMPED. Dauer IN TACT iBO1L
ROWOFSTAPLES.
_ TYPICAL STAPLES
• FoaAuc�,rRF
JUTE MATTING DETAIL
NOT TO$CIu.E
AS REQ'D TO ACCOMMODATE
STORM DRAINS AND INLET FRAM S
4" CONCRETE SLAB_
BRICK MASONARY UNIT
PRECAST CONCRETE I
BOX RATED FOR MIN.
H-20 TRAFFIC LOADING
12' #57
COMPACTED STONE
UNDISTURBED SOIL SECTION B-B
YARD INLET
NOT ro-s=
IIN. 10 GA.
-.-- -.-------STEEL
OR WOOD POST
OP WIRE
WOVEN WIRE FENCING AS REQUIRED
MIN. 12-1/2 GA.
U
m z
�
SILT FILTER FABRIC
INTERMEDIATE WIRES
`"' U_'M
li N
MIN. 10 GA.
LU -
� L"
BOTTOM WIRE
LL
6' MIN. COMPACTED
FILL OVER SKIRT'
IJ-
��,;
ANCHOR FABRIC SKIRT wl MIN. 4" LONG
WIRE STAPLES @ 12' O.C.
I
W ,
����
'FOR REPAIR OF SILT FENCE FAILURES,
��/�\�%
STONE IN LIEU OF
USE #57 COMPACTED FILL.
FRONT VIEW SIDE VIEW
NOTES:
1. INSTALL NEW SILT FENCES AS SHOWN ON DRAWING AND AT LOCATIONS NECESSARY TO CONTROL SILTATION OF ADJACENT AREAS_
2. WHERE WOOD POSTS ARE USED, POSTS SHALL BE A MINIMUM OF 3' IN DIAMETER AND WIN LENGTH. POSTS SHALL BE CREOSOTE OR
PENTACHLOROPENOL TREATED SOUTHERN PINE.
3. WHERE STEEL POSTS ARE USED, POSTS SHALL BE FIN LENGTH AND BE OF THE SELF FASTENER ANGLE TYPE.
4. WOVEN WIRE FENCING, WHERE REQUIRED (SEE NOTE 06), SHALL CONFORM TO ASTM Al 16 FOR CLASS 3 GALVANIZING. FABRIC SHALL
BE A MINIMUM OF 32" WIDE AND HAVE A MINIMUM OF 6 LINE WIRES WITH 12' STAY SPACING. THE TOP AND BOTTOM WIRES SHALL
BE 10 GAUGE AND INTERMEDIATE WIRES SHALL BE 12-1/2 GAUGE. WIRE FABRIC SHALL BE FASTENED TO WOOD POSTS WITH NOT LESS
THAN #9 STAPLES 1 10 LONG.
5. FILTER FABRIC SHALL BE OF NYLON, POLYESTER, PROPYLENE OR ETHYLENE YARN WITH A MINIMUM STRENGTH OF 30 LBJLIN. IN. AND A
MINIMUM OF 85% FILTERING EFFICIENCY. FABRIC SHALL CONTAIN ULTRAVIOLET INHIBITORS AND STABILIZERS.
6. IF FABRIC FILTER IS USED WITH A STRENGTH OF 50 LB./LIN. IN. OR GREATER, AND THE POST SPACING (S) DOES NOT EXCEED 6', WOVEN
WIRE FENCING IS NOT REQUIRED. OTHERWISE, WOVEN WIRE FENCING IS REQUIRED, AND POST SPACING SHALL NOT EXCEED 8'.
TEMPORARY SILT FENCE
NOT TO SCALE
A. PROJECT DESCRIPTION
THE CLARENDEN OFFICE PARK PROJECT IS BEING DEVELOPED BY DR. WILLIAM P. WALKER AND DR. WILLIAM
J. FAIRCLOTH. THE PROJECT IS ON A 3.0 ACRE TRACT WITHIN THE TOWN OF SHALLOTTE. THE SITE IS
ADJACENT TO SMITH AVENUE (NCSR 1357) APPROXIMATELY 350 FEET NORTHWEST OF ITS INTERSECTION
WITH WHITE STREET. THE PROJECT WILL CONSIST OF THE CONSTRUCTION OF TWO MEDICAL FACILITIES,
THREE PROFESSIONAL BUILDINGS, ASSOCIATED PARKING, ACCESS DRIVES, DRAINAGE FACILITIES, WATER
SERVICES, SEWER SERVICES, AND OTHER UTILITIES.
A STORMWATER DETENTION POND WILL BE CONSTRUCTED ON -SITE TO SERVE THE PROJECT. DRAINAGE OF
THE SITE WILL PRIMARILY INVOLVE WATER BEING DIRECTED BY CURB AND GUTTER TOWARD CURB INLETS -
THE DRAINAGE ON THE NORTHWESTERN CORNER NEAR THE THREE PROFESSIONAL BUILDINGS WILL BY
CHANNELED BY MEANS OF INTERCEPTOR SWALES TO A YARD INLET. THE STORM DRAIN SYSTEM WILL
TRANSPORT THE WATER TO THE FORBAY OF THE STORMWATER POND.
THE STORMWATER DETENTION POND WILL DISCHARGE TO POLEY BRIDGE BRANCH, A TRIBUTAR OF
WOODWARD BRANCH_ THE CLASSIFICATION OF WOODWARD BRANCH AT THE POINT OF CONFLUENCE IS C SW
HOW. THEREFORE, THE POND IS DESIGNED TO TREAT THE VOLUME OF RUNOFF FROM THE FIRST ONE INCH
OF RAINFALL FROM THE POND DRAINAGE BASIN. FURTHER, THE POND IS DESIGNED TO HANDLE THE PEAK
RUNOFF FROM THE 10-YEAR STORM WITH A FREEBOARD OF AT LEAST ONE FOOT.
B. TERRAIN AND SOILS
THERE IS APPROXIMATELY 10 FFET OF RELIEF ON THE SITE FALLING GENERALLY FROM NORTH TO SOUTH
BASED ON THE SOIL SURVEY OF BRUNSWICK COUNTY, THE PROMINENT SOILS ON SITE BELONG TO
BAYMEADE AND NORFOLK SERIES. BAYMEADE SOILS ARE WILL DRAINED FINE SANDS ON UPLANDS. NORFOLK
SOILS ARE WELL -DRAINED LOAMY FINE SANDS AND SANDY CLAY LOAMS ON UPLANDS.
C. ADJACENT PROPERTY
THE PROJECT AREA IS BOUNDED TO THE NORTH BY A TRACT OWNED BY EDWARD SWEATT, TO THE
SOUTHWEST AND SOUTHEAST BY TRACTS OWNED BY ELBA HAWES AND WHITE INVESTMENTS, AND TO THE
EAST BY SMITH AVENUE (NCSR 1357).
D. EROSION CONTROL MEASURES
A LARGE PORTION OF THE DISTURBED AREAS WILL DRAIN TO THE STORMWATER DETENTION POND. THE
POND WILL, THEREFORE, SERVE AS THE PRIMARY EROSION CONTROL FEATURE (SEDIMENT TRAP DURING
CONSTRUCTION FOLLOWING THE STABILIZATION OF ALL UPSTREAM SURFACES, THE POND SHALL BE
CLEANED OUT AS REQUIRED TO REMOVE COLLECTED SEDIMENT SO THAT IT CAN PERFORM AS DESIGNED
FOR STORMWATER TREATMENT.
TEMPORARY EROSION CONTROL MEASURES WILL INCLUDE CONSTRUCTION ENTRANCE, SILT FENCING, AND
STONE CHECK DAMS. THE METHOD FOR LIMITING THE AMOUNT OF ERODED SOILS RELEASED FROM THE
PROJECT ON A PERMANENT BASIS SHALL BE THE STABILIZATION OF ALL DENUDED SURFACES WITH
PERMANENT GRASSING.
EROSION CONTROL GENERAL NOTES
1. ALL CONSTRUCTION ACTIVITIES SHALL BE PERFORMED IN COMPLIANCE WITH THE SEDIMENTATION
POLLUTION CONTROL ACT OF 1973.
2, ALL LAND DISTURBING ACTIVITIES ARE TO BE PLANNED AND CONDUCTED TO LIMIT EXPOSURE TO
THE SHORTEST FEASIBLE TIME.
3. ALL DISTURBED AREAS SHALL BE STABILIZED BY A PERMANENT GROUND COVER.
4. AS SOON AS ALL AREAS ARE PERMANENTLY STABILIZED, ALL PERMANENT MEASURES HAVE BEEN
INSTALLED, AND FINAL APPROVAL IS RECEIVED FROM THE LAND QUALITY SECTION, THE TEMPORARY
MEASURES MAY BE REMOVED.
5. OVER THE LIFE OF THE PROJECT, THE OWNER SHALL MAKE PERIODIC INSPECTIONS TO EVALUATE
THE SUCCESS IN CONTROLLING EROSION OF SOILS TO OFF -SITE AREAS, IF AREAS ARE FOUND WHERE
EROSION IS TAKING PLACE, THE OWNER SHALL TAKE THE NECESSARY MEASURES TO REMEDY THE
SITUATION.
CONSTRUCTION SEQUENCE
1, OBTAIN APPROVAL OF THE EROSION CONTROL PLAN FROM THE NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES (NCDENR), LAND QUALITY SECTION. OBTAIN APPROVAL
OF THE STORMWATER PLAN FROM NCDENR, DIVISION OF WATER QUALITY,
2. CLEAR AND GRUB THE PROJECT SITE.
3. INSTALL THE CONSTRUCTION ENTRANCE, CHECK DAMS, AND SILT FENCING.
4. STRIP TOPSOIL AND STOCKPILE ON -SITE FOR USE IN FUTURE VEGETATED AREAS.
5. CONSTRUCT THE STORMWATER DETENTION POND WITH INLET PIPE AND OUTLET STRUCTURE.
6. ROUGH GRADE PARKING LOT, DRIVES, AND BUILDING AREAS. PREPARE SITE, PLACE FILL MATERIAL,
AND PERFORM SOILS TESTING IN COMPLIANCE WITH SOILS REPORT. BRING IN FILL MATERIAL AS
REQUIRED FROM A MINE APPROVED BY THE LAND QUALITY SECTION (NCDEHNR)
7. CONSTRUCT THE SWALES AROUND IN THE THREE PROFESSIONAL BUILDINGS. INSTALL CHECK DAMS
AND STABILIZE SWALE CHANNEL AND BANKS.
8. PREPARE BUILDING PADS AND BEGIN BUILDING CONSTRUCTION.
9. CONSTRUCT THE STORMWATER DRAINAGE SYSTEM INCLUDING CURB INLETS, JUNCTION BOX, AND
STORM DRAINS.
10. INSTALL INLET PROTECTION AROUND CURB INLETS, CATCH BASIN AND YARD INLET.
11. INSTALL WATERLINES, ELECTRIC LINES, TELE/CABLE LINES, LIFT STATION, AND GRAVITY LINES.
12. FINISH GRADE DRIVES AND PARKING LOT.
13. PREPARE SUBGRADE, PLACE BASE MATERIAL, AND PAVE DRIVES AND PARKING LOT,
14, FINISH BUILDING CONSTRUCTION.
15. MAINTAIN ALL TEMPORARY EROSION CONTROL MEASURES UNTIL PERMANENT GROUND COVER IS
ESTABLISHED.
16, CHECK STORMWATER POND DEPTH FROM NORMAL POOL TO BOTTOM. IF IT IS LESS THAN MINIMUM
DESIGN DEPTH ALLOWED, EXCAVATE TO DESIGN DEPTH.
SEEDING SCHEDULE
1. ALL DISTURBED AREAS DUE TO CONSTRUCTION AND ANY SEVERELY ERODED AREAS SHALL BE
STABILIZED BY A PERMANENT GRASS COVER. THE SEED SPECIES SHALL BE SELECTED BASED
ON THE TYPE SOIL PRESENT SEASONAL CONDITIONS AND OTHER CONSIDERATIONS. AS AN
ALTERNATIVE, THE CONTRACTOR MAY USE THE METHODSAND SCHEDULES SHOWN BELOW;
HOWEVER, IT IS RECOMMENDED THAT A SPECIALIST BE CONSULTED WITH ATTENTION GIVEN TO
SITE SPECIFIC CONDITIONS.
a- CULTIVATE AREA TO A DEPTH OF 5 INCHES.
b. APPLY AGRICULTURAL LIME AT THE RATE OF 4000 LBS. PER ACRE.
a APPLY 10-20-20 COMMERCIAL FERTILIZER AT THE RATE OF 500 LBS, PER ACRE.
d. SOW GRASS SEEDS AT THE FOLLOWING RATES PER ACRE.
DRY SOILS (APR1L-SEPTEMBERJ WET SOILS (APRIL-SrEPTEMBERj
BERMUDAGRASS .................. 30lbs. BERMUDAGRASS .................. 25lbs.
CENTIPEDEGRASS ......... ......10lbs. BAHIAGRASS............. ............. 251bs.
BAHIAGRASS.................. ........ 30lbs. CARPETGRASS ...................... 251bs.
KOBE LESPEDEZA............._20 Ibs. ANNUAL RYEGRASS or
ANNUAL RYEGRASS OR GERMAN MILLET.....................25 IbS.
GERMAN MILLET....................25 lbs.
e.MULCH WITH STRAW AT THE RATE OF 3250 TO 4350 LEIS. PER ACRE.
I. ANCHOR STRAW WITH ASPHALT EMULSION TACK COAT APPLIED AT THE RATE OF 300 GALLONS
PER ACRE.
2. WHERE IT IS NOT POSSIBLE TO ESTABLISH A PERMANENT GRASS COVER IN A REASONABLY SHORT
PERIOD OF TIME DUE TO SEASONAL CONSIDERATIONS, A TEMPORARY GRASS COVER SHALL BE
ESTABLISHED. THE TEMPORARY SEED RATE PER ACRE SHALL BE:
_WINTER (SEPTEMBER-APRIL) SUMMER (MAY -AUGUST}
ANNUAL RYEGRASS ....... 50lbs_ GERMAN MILLET .... 50 IDS.
TALL FESCUE.................50 Ibs.
TEMPORARY COVERS SHALL NOT ELIMINATE THE REQUIREMENT FOR PERMANENT GRASS COVER,
WHERE THE SEASON OR OTHER CONDITIONS ARE NOT SUITABLE FOR GROWING A TEMPORARY EROSION
RESISTANT COVER, MULCH MAY BE APPLIED; HOWEVER, MULCH USED ALONE SHALL BE FOR THE SHORTEST
TIME PRACTICAL. A TEMPORARY OR PERMANENT VEGETATIVE COVER SHALL BE ESTABLISHED AS SOON AS
CONDITIONS ARE FAVORABLE.
3. TOPSOIL SHALL BE USED OVER UNFAVORABLE SOIL CONDITIONS FOR SUCCESSFUL ESTABLISHMENT OF
VEGETATIVE COVER.
4, IRRIGATE AS NECESSARY TO OPTIMIZE PLANT GROWTH.
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Date: JAN 16 010
Scale: AS SHOWN
Drawn By: SMH
Checked By: ACL/DBB
THIS PLAN IS NOT ISSUED FOR
:ONSTRUCTION WITHOUT AFFIXED I
EMBOSSED CORPORATE SEAL.
whale or in part without written permission
of East Coast Engineering Company, P.A.
. 1
Sheet 8 OF 9
LCEC PROJECT NO, 00-0409