SW6111102_APPROVED PLANS_20120307

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW /o�IOQ
DOC TYPE
❑ CURRENT PERMIT
APPROVED PLANS
❑ HISTORICAL FILE
DOC DATE
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U.S. ARMY CORPS OF ENGINEERS
DESIGNED BY:
SAVANNAH DISTRICT
D. NICKLES
DRAWN BY:
CHECKED BY:
:.
DOYLE
D. NICKLES
�WalbridgeR.
REVIEWED BY:
twAcHAEL BAKER JR., INC. i
A unitoiMfchae1BekerCurporstian 777 Woodward Avenue Sulte 300
R. MAGRINO
2221 E LAMAR BLVC DeL oIt, Mlch1gan 48226-3529
$UlTE60� (323) 963.8m)
www.walbHd9e.cam
DATE:
ARLING760D6
987A90D 7a�o�
OCTOBER 25 2011
(817)
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DESCRIPTION
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DP-1 CORRECTED FINAL SUBMISSION -NOT FOR CONSTRUCTION-10/25/2011

2
3
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UNDERDRAIN INSTALLATION NOTES:
• ALL PIPING MUST HAVE A MINIMIUM SLOPE OF 0.5% ,AND
BE CONSTRUCTED OF SCHEDULE 40 OR SDR 35 SMOOTH
WALL PVC PIPE.
C
►0
• ALL PIPING MUST HAVE A MINII\1' 11M OF 4 ROWS OF
PFRFORAT IONS AROUND THE DIAL,,'TFR OF THE PIPE. ALL
PE RFOR,' 1TONS S[-1,-`,L1_ RE PLA' F [': 6 INCHES ON CENTER
WITHI^: E,",'H FOR THE EN, RE LENGTH OF THE
DRAINAGE LATERAL. ALL PERFOk/-\]-IONS SHALL BE 3/8" IN
DIAMETER.
FLOW
FROM JB 1
SAND: MUST
OR <<
DIAMET
K?AT(-u �'-QAFW
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BID -RETENTION FACILITY
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SCALE: N.T.S.
PVC UNDFRDRAIN
UNDFRDRAIN -- 3 ROWS OF 4" PERFORATED PIPE
CLEANOUTS SPACED 10' APART MAX.
OVERFLOW SPILLWAY
EL. 284.8
W 1 DTH 12'
US Army Corps
of Engineers
Savannah District
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O
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R7-8 12 x18
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SEE PLAN FOR LOCATION. 12"X6"x0.080 ACCESSIBLE
SIGN WITH TWO 5/16" CADMIUM PLATED
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REVERSE GUTTER
NOTES:
1. PROVIDE 1 /2" EXPANSION JOINT WITH PREFORMED JOINT FILLER AT
ALL ANGLE POINTS AND THE BEGINNING AND ENE OF ALL CURVES.
2. PROVIDE CONTRACTION JOINTS, CUT SCORES AT 15' O.C. MAX.
6" CONCRETE CURBED GUTTER
C-511 SCALE: N.T.S.
VAN &
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tl
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i
t b —6
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_T �
IN1. LL._
AND
SELECT BACKFILL
PER EART11,ORK SPECIFICATION
#31 00 00
TOP OF 8' CMP
EL. = 280.47
BACKFILL MATERIAL SHALL
BE AASHTO #57 AGGREGATE,
MATERIAL WITHIN THE 2 FEE]
OF PIPE BEDDING MAY BE
LARGE MATERIAL NOT TO
d EXCEED AN AVERAGE
DIAMETER OF 4 INCHES.
N
�� =1l-4" SAND
\ l I— i
6 0 PERFORATED PVC
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INV. EL. = 270.47 A,h
WEIR
III z_
;
6'-6" x 6'6"
Yll!
--,
CONCRETE
JUNCTION BOX
24 CMP ELEVATION VIEW PER NCDOT
MANHOLE FR,',':1F AND CODERS �- _ TOP OF JUNCTION BOX
FLUSH WITH i,JISHED GROUND (SURFACE ELEVATION)
� S
1 - —
I'
I.i
I
MANHOLE FRA
AND COVE,,...
TOP OF WEIR WALL EL. = 279.50
1
I �
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I i L.uo 0 cazICE
INV. EL. _ 269.91
(
'--6" 0 PERFORATED PVC
BACKFILL MATERIAL SHAFL -_ )
BE RECYCLED CONCRETE
GENERATED BY THIS
PROJECT, EQUIVALENT TO
HA.SHTO3 AGGREGATE,
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STANDARD EROSION AND SEDIMENT CONTROL MOTES
CONSTRUI(.-MON HQUENCE
THE CORPS OF ENGINEERS REQUIRES THAT THESE NOTES, IN THEIR ENTIRETY, BE INCLUDED ON THE EROSION AND SEDIMENT CONTROL PLAN, IT IS RECOGNIZED THAT EVERY (MOTE MAY NOT APPLY TO
ALL PROJECTS. THE REQUIREMENT OF ANY INDIVIDUAL NOTE NOT APPLICABLE 10 THE SUBJECT PROJECT IS NOT BINDING UPON THE APPLICANT OR THE APPLICANT'S CONTRACTOR,
PHASE
1
ALL EROSION AND SEDIMENTATION CONTROL MEASURES SHALL BE INSPECTED GAILY AND AFTER EACH 0.5" RAINFALL EVENT.
1. THE CONTRACTOR SHALL NOTIFY THE COE ENVIRONMENTAL SPECIALIST AT (910-396-1211 X 223) SEVEN (7) DAYS BEFORE COMMENCING ANY LAND DISTURBING ACTIVITY AND, UNLESS WAIVED BY THE
1.
OBTAIN PLAN APPROVAL AND OTHER APPLICABLE PERMITS PRIOR TO CONSTRUCTION ACTIVITIES.
COE, SHALL BE REQUIRED TO HOLD A PRE -CONSTRUCTION MEETING BETWEEN PROJECT REPRESENTATIVES AND A REPRESENTATIVE OF COE.
2.
FLAG THE WORK LIMITS.
2. THE CONTRACTOR MUST NOTIFY COE IN WRITING AND BY TELEPHONE AT THE FOLLOWING POINTS:
3.
COORDINATE UTILITY NOTIFICATION WITH NC ONE -CALL SYSTEM AND FORT BRAGG DPW.
A. THE REQUIRED PRE -CONSTRUCTION MEETING.
4.
HOLD PRE -CONSTRUCTION CONFERENCE AT LEAST ONE WEEK PRIOR TO STARTING
B. FOLLOWING INSTALLATION OF SEDIMENT CONTROL MEASURES.
CONSTRUCTION.
D
C. DURING THE INSTALLATION OF SEDIMENT BASINS (TO BE CONVERTED INTO PERMANENT STORMWATER MANAGEMENT STRUCTURES) AT THE REQUIRED INSPECTION POINTS (SEE INSPECTION CHECK-IST ON
5.
INSTALL PERIMETER SECURITY FENCING, PERIMETER SEDIMENT FENCE AND INLET PROTECTION AS
PLAN). NOTIFICATION PRIOR TO COMMENCING CONSTRUCTION OF EACH STEP IS MANDATORY.
INDICATED ON DRAWINGS,
D. PRIOR TO REMOVAL OR MODIFICATION OF ANY SEDIMENT CONTROL STRUCTURE(S).
6.
INSTALL CONSTRUCTION ENTRANCES IN THE LOCATION SHOWN ON THE PLANS.
E. PRIOR TO REMOVAL OF ALL SEDIMENT CONTROL DEVICES.
7.
ESTABLISH THE STOCKPILE AREAS AND USE TO STOCKPILE ASPHALT AND CONCRETE. INSTALL
F. PRIOR TO FINAL ACCEPTANCE.
SEDIMENT FENCE AROUND THE STOCKPILES.
3. THE CONTRACTOR SHALL CONSTRUCT ALL EROSION AND SEDIMENT CONTROL MEASURES PER THE APPROVED PLAN AND CONSTRUCTION SEQUENCE AND SHALL HAVE THEM INSPECTED AND APPROVED BY
8.
ONCE PERIMETER CONTROLS AND ALL EROSION AND SEDIMENT CONTROLS ARE IN PLACE AND
THE SEDIMENT AND EROSION CONTROL INSPECTOR PRIOR TO BEGINNING ANY OTHER LAND DISTURBANCES. MINOR SEDIMENT CONTROL DEVICE LOCATION ADJUSTMENTS MAY BE MADE IN THE FIELD WITH
OPERATIONAL, AND WITH THE APPROVAL OF THE INSPECTOR BEGIN DEMOLITION OF EXISTING
THE APPROVAL OF THE COE INSPECTOR. THE CONTRACTOR SHALL ENSURE THAT ALL RUNOFF FROM DISTURBED AREAS IS DIRECTED TO THE SEDIMENT CONTROL DEVICES AND SHALL NOT REMOVE ANY
BUILDINGS.
EROSION OR SEDIMENT CONTROL MEASURE WITHOUT PRIOR PERMISSION FROM COE INSPECTOR. THE CONTRACTOR MUST OBTAIN PRIOR COE APPROVAL FOR CHANGES TO THE SEDIMENT CONTROL PLAN
9.
DEMOLI �H FOUNDATIONS AND MISCELLANEOUS SITE STRUCTURES WITHIN THE AREA OF THE
AND / OR SEQUENCE OF CONSTRUCTION.
PROPOSED BUILDING.
4. THE CONTRACTOR SHALL PROTECT ALL POINTS OF CONSTRUCTION INGRESS AND EGRESS TO PREVENT THE DEPOSITION OF MATERIALS ONTO PUBLIC ROADS. ALL MATERIALS DEPOSITED ONTO PUBLIC
10.
DEMOLISH ALL BUILDINGS AND ABOVE GROUND FEATURES AS SHOWN ON THE DEMOLITION PLAN.
ROADS SHALL BE REMOVED IMMEDIATELY.
DEMOLITION OF SUBSURFACE STRUCTURES SHALL NOT OCCUR UNTIL TEMPORARY SKIMMER
5. THE CONTRACTOR SHALL INSPECT DAILY AND MAINTAIN CONTINUOUSLY IN AN EFFECTIVE OPERATING CONDITION ALL EROSION AND SEDIMENT CONTROL MEASURES UNTIL SUCH TIMES AS THEY ARE
REMOVED WITH PRIOR PERMISSION FROM COE INSPECTOR. ALL SEDIMENT BASINS, TRAP EMBANKMENTS AND SLOPES, PERIMETER DIKES, SWALES, CHANNELS AND ALL DISTURBED SLOPES STEEPER OR
11.
SEDIMENT BASIN HAS BEEN INSTALLED.
DEMOLISH FOUNDATIONS AND MISCELLANEOUS SITE STRUCTURES WITHIN THE AREA OF THE
I
OR SEED AND ANCHORED STRP.W MULCH OR OTHER APPROVED STABILIZATION MEASURE. A �I � 1 LATER THAN SEVEN
E STABILIZED WITH SOD � S .SOON AS POSSIBLE BUT NO _ E SE E
EQUAL TO 3:1 SHALL B (� )
C�
PROPOSEDD BJ LDING.
CALENDAR DAYS AFTER ESTABLISHMENT. ALL AREAS DISTURBED INSIDE OF THE PERIMETER SEDIMENT CONTROL SYSTEM MUST BE MINIMIZED. MAINTENANCE MUST BE PERFORMED AS NECESSARY TO
12.
INSTALL PROPOSED STORM JUNCTION BOX MH1 AND CONNECT TO EXISTING STORMWATER BASIN
ENSURE CONTINUED STABILIZATION. (REQUIREMENT FOR STABILIZATION MAY BE -REDUCED TO THREE (3) DAYS FOR SENSITIVE AREAS.)
AT INTER-'_;ECTION OF GRUBER AND BUTNER ROADS AS SHOWN IN DRAWINGS.
6. THE CONTRACTOR SHALL APPLY SOD OR SEED AND ANCHORED STRAIN MULCH, OR OTHER APPROVED STABILIZATION MEASURES TO ALL DISTURBED AREAS AND STOCKPILES WITHIN FOURTEEN (14)
13.
INSTALL T-viPORARY SKIMMER SEDIMENT BASIN IN LOCATION SHOWN. CONNECT OUTLET PIPE TO
CALENDAR DAYS AFTER STRIPPING AND GRADING ACTIVITIES HAVE CEASED IN THE AREA. MAINTENANCE SHALL BE PERFORMED AS NECESSARY TO ENSURE CONTINUED STABILIZATION. (REQUIREMENT MAY BE
MH1 VI' 12" RCP.
REDUCED TO SEVEN (7) DAYS FOR SENSITIVE AREAS.)
14.
INSTALL T-MPORARY DIVERSION CHANNEL NORTH TO SOUTH BEGINNING AT TEMPORARY SKIMMER
7. PRIOR TO REMOVAL OF SEDIMENT CONTROL MEASURES, THE CONTRACTOR SHALL STABILIZE AND HAVE ESTABLISHED PERMANENT STABILIZATION FOR ALL CONTRIBUTORY DISTURBED AREAS USING SOD
SEDIMENT BASIN. TEMPORARY DIVERSION CHANNELS MUST CONVEY RUNOFF TO THE TEMPORARY
OR AN APPROVED PERMANENT SEED MIXTURE WITH REQUIRED SOIL AMENDMEN-S AND AN APPROVED ANCHORED MULCH. WOOD FIBER MULCH MAY ONLY BE USED IN SEEDING SEASON WHERE THE SLOPE
SKIMMEit SEDIMENT BASIN. CHANNEL SHOULD BE STABILIZED WITH LINING INDICATED ON THE
DOES NOT EXCEED 10% AND GRADING HAS BEEN DONE TO PROMOTE SHEET FLOW DRAINAGE. AREAS BROUGHT TO FINISHED GRADE DURING THE SEEDING SEASON SHALL BE PERMANENTLY STABILIZED AS
TEMPORARY DIVERSION CHANNEL DETAIL.
SOON AS POSSIBLE, BUT NOT LATER THAN FOURTEEN (14) CALENDAR DAYS AFTER ESTABLISHMENT. DPW FORT BRAGG SEEDING SPECS SHALL BE USED FOR ALL TEMPORARY AND PERMANENT SEEDING
WITH THE EXCEPTION OF ANY DISTURBANCE IN WETLAND AREAS. FOR WETLAND AREAS THE ENDANGERED SPECIES BRANCH WILL GIVE GUIDANCE AND HAS THEIR OWN SEED SPECS TO BE USED IN
PHASE
2
C
WETLAND AREAS.
8. THE SITE'S APPROVAL LETTER, APPROVED EROSION AND SEDIMENT CONTROL PLANS, DAILY LOG BOOKS, AND TEST REPORTS SHALL HE AVAILABLE AT THE SITE FOR INSPECTION BY DULY AUTHORIZED
OFFICIALS OF COE, WMB AND NCDENR RESPONSIBLE FOR PROJECT.
15.
INSTALL ANY ADDITIONAL PERIMETER SECURITY FENCING, PERIMETER SEDIMENT FENCE AND INLET
9. SURFACE DRAINAGE FLOWS OVER UNSTABILIZED CUT AND FILL SLOPES SHALL BE CONTROLLED BY EITHER PREVENTING DRAINAGE FLOWS FROM TRAVERSING THE SLOPES OR BY INSTALLING PROTECTIVE
PROTEC _ ION AS INDICATED ON DRAWINGS.
DEVICES TO CONVEY THE WATER DOWNSLOPE WITHOUT CAUSING EROSION. DIKES SHALL BE INSTALLED AND MAINTAINED AT THE TOP OF A CUT OR FILL SLOPE UNTIL THE SLOPE AND DRAINAGE AREA TO
16.
BEGIN .)Ek10LITION OF ALL REMAINING FOUNDATIONS, MISCELLANEOUS SITE STRUCTURES, AND
IT ARE FULLY STABILIZED, AT WHICH TIME THEY MUST BE REMOVED AND FINAL GRADING DONE TO PROMOTE SHEET FLOW DRAINAGE. PROTECTIVE METHODS MUST BE PROVIDED AT POINTS OF
PAVEMENT. STOCKPILE SALVAGEABLE MATERIALS. ASPHALT/CONCRETE MATERIALS SHALL BE
CONCENTRATED FLOW WHERE EROSION IS LIKELY TO OCCUR.
DISPOS:_D OF IN ACCORDANCE WITH FT. BRAGG AND STATE REQUIREMENTS.
10. PERMANENT SWALES OR OTHER POINTS OF CONCENTRATED WATER FLOW SHALL BE STABILIZED WITH SOD OR SEED WITH AN APPROVED EROSION CONTROL MATTING, RiP-RAP, OR BY OTHER
17.
CHECK ALL SEDIMENT CONTROLS TO ENSURE THEY ARE WORKING PROPERLY PRIOR TO
APPROVED STABILIZATION MEASURES. TEMPORARY SEDIMENT CONTROL DEVICES MAY BE REMOVED, WITH PERMISSION OF THE SEDIMENT �,ND EROSION CONTROL iIJSPECTOR, v'dITHIN THIRTY (30) CALENDAR
COMME`JCING WITH CLEARING AND GRUBBING ACTIVITIES, REMOVE ALL STUMPS AND ROOTS
DAYS FOLLOWING ESTABLISHMENT OF PERMANENT STABILIZATION IN ALL CONTRIBUTORY DRAINAGE AREAS. STORMWATER MANAGEMENT STFUCTURES USED TEMPORARILY �` OR SEDIMENT CONTROL SHALL BE
GREATL"' THAN 1.5 INCHES IN DIAMETER.
CONVERTED TO THE PERMANENT CONFIGURATION WITHIN THIS TIME PERIOD AS WELL.
18,
EXCAVAI E AND INSTALL 96" STORMWATER DETENTION CONDUIT AND BACKFILL ACCORDINGLY. ONLY
11 . NO PERMANENT CUT OR FILL SLOPE WITH A GRADIENT STEEPER THAN 3:1 WILL BE PERMITTED IN LAWN MAINTENANCE AREAS, A SI Op[-- GRADIENT OF UP TO 2 1 ':'ILL BE PERMITTED IN
EXCAVAI E LINEAR LENGTH FOR CONDUIT THAT COULD BE PLACED AND BACKFILLED IN ONI-
NON -MAINTENANCE AREAS PROVIDED THAT THOSE AREAS ARE INDICATED ON TIE EROSION AND SEDIMENT CONTROL PLAN WITH A LO'VJ- IaIAIIN T ENAJCE GROUND OVER SPECIFIED FOR PERMANENT
WORKIH DAY.
STABILIZATION. SLOPE GRADIENT STEEPER THAN 21:1 WILL NOT BE PER%C-TED WITH VEGETATIVE STABILIZATION.
19.
BEGIN J'-C-H GRADING OPERATIONS. ADD/ADjUST SEDIMENT FENCE LOCATIONS AS NECESSARY
12. FOR FINISHED GRADING, THE CONTRACTOR SHALL PROVIDE ADEQUATE GRADIENTS TO PREVENT WATER FROM PODDING FOR MORE THAN TWENTY FOUR (24) HOUL,S AFTER THE END OF A RAINFALL
DURING GRADING ACTIVITIES TO ENSURE SEDIMENT LADEN RUNOFF CANNOT
MAY TAKE AS LONG AS FORTY-EIGHT 48 HOURS AFTER THE END OF A RAINFALL EVENT TO DRAK. AREAS DESIGNED TO HAVE STANDING WATER
EVENT. DRAINAGE COURSES AND SWALE FLOW AREAS M ( )
LEAVE THE PROJECT
SITE.
SHALL NOT BE REQUIRED TO MEET THIS REQUIREMENT.
20,
CHECK ALL SEDIMENT CONTROLS TO FNSURE THEY ARE WORKING PROPERLY. CONTROLS ARE TO
13. SEDIMENT TRAPS OR BASINS ARE NOT PERMITTED WITHIN 20 FEET GF A FDUNDATION THAT EXISTS OR IS UNDER CONSTRUCTION. 110 STRUCTURE MAY BE CONSTI'JCTED WITHIN 20 FEET OF AN
REMAIN IN PLACE DURING THE REMAINDER OF CONSTRUCTION OPERATIONS.
ACTIVE SEDIMENT TRAP OR BASIN,
14. THE SEDIMENT AND EROSION CONTROL INSPECTOR HAS THE OPTION OF REQUIRING ADDITIONAL SAFETY OR SEDIMENT CONTROL ME, SURES, IF DEEMED NECESSARY.
21.
AS SITE GRADES ARE ACHIEVED, BEGIN CONSTRUCTION OF THE BUILDING FOUNDATIONS FOOTINGS.
15. ALL TRAP DEPTH DIMENSIONS ARE RELATIVE TO THE OUTLET ELEVATION. ALL TRAPS MUST HAVE A STABLE OUTFALL. ALL TRAPS AND BASINS SHALL HAVE STABLE INFLOW POINTS.
16. VEGETATIVE STABILIZATION SHALL BE PERFORMED IN ACCORDANCE WITH THE STANDARDS AND SPECIFICATIONS FOR SOIL EROSION A'JD SEDIMENT CONTROL. REFE_i� 10 APPROPRIATE FORT BRAGG
PHASE
3
SPECIFICATIONS FOR TEMPORARY SEEDING, PERMANENT SEEDING, MULCHING, SODDING, AND GROUND COVERS.
17. SEDIMENT SHALL BE REMOVED AND THE TRAP OR BASIN RESTORED TO ITS ORIGINAL DIMENSIONS WHEN THE SEDIMENT HAS ACCUMULATED TO ONE QUARTER OF THE TOTAL DEPTH OF THE TRAP OR
BASIN. TOTAL DEPTH SHALL BE MEASURED FROM THE TRAP OR BASIN BOTTOM TO THE CREST OF THE OUTLET.
22.
BRING SITE TO FINAL GRADE WHILE MAINTAINING TEMPORARY SKIMMER SEDIMENT BASIN AND
B
18. SEDIMENT REMOVED FROM TRAPS (AND BASINS) SHALL BE PLACED AND S-ABILIZED IN APPROVED AREAS, BUT NOT WITHIN A FLOODPLAIN, WETLAND OR TREE -SAVE AREA. WHEN PUMPING SEDIMENT
TEMPORARY DIVERSION CHANNEL AND SEDIMENT FENCE AND CONTROLS THROUGHOUT SITE.
LADEN WATER, THE DISCHARGE MUST BE DIRECTED TO A SEDIMENT TRAPPING DEVICE PRIOR TO RELEASE FROM THE SITE. A SUMP P11 MAY BE USED IF SEDIMENT TRAPS THEMSELVES ARE BEING PUMPED
IMMEDIATELY STABILIZE AREAS AS FINAL GRADES ARE ACHIEVED.
-
OUT. ALL WATER REMOVED FROM EXCAVATED AREAS (E.G. UTILITY TRENCHES) SHALL BE PASSED THROUGH AN APPROVED DEWATERING PRACTICE OR PUMPED TO A SEDIMENT TRAP OR BASIN PRIOR TO
23,
INSTALL PERIMETER SECURITY FENCING,F
S LL ERIIv1ETER SEDIMENT FENCE AND INLET PROTECTION AS
DISCHARGE FROM THE SITE (I.E. VIA FUNCTIONAL STORM DRAIN SYSTEM OR TO STABLE GROUND SURFACE).
INDICAT-D ON DRAWINGS.
19. SEDIMENT CONTROL FOR UTILITY CONSTRUCTION FOR AREAS OUTSIDE OF DESIGNED CONTROLS OR AS DIRECTED BY ENGINEER OR COE INSPECTOR:
24.
BEGIN :ONSTRUCTION ON BUILDING SUPER STRUCTURE AND CONTINUE WITH CONSTRUCTION OF
A. EXCAVATED TRENCH MATERIAL SHALL BE PLACED ON THE HIGH SIDE OF TH- TRENCH.
PARKING AREAS.
B. TRENCHES FOR UTILITY INSTALLATION SHALL BE BACKFILLED, COMPACTED, AND STABILIZED AT THE END OF EACH WORKING DAY. NO MORE TRENCH SHALL BE OPENED THAN CAN BE COMPLETED THE
25.
ONCE FINAL GRADES ARE ESTABLISHED, STABILIZE VEGETATED AREAS WITH TEMPORARY OR
SAME DAY, UNLESS;
PERMANENT SEEDING AND STABILIZE PAVED AREAS WITH GRAVEL BASE.
C. TEMPORARY SILT FENCE SHALL BE PLACED IMMEDIATELY DOWNSTREAM OF ANY DISTURBED AREA INTENDED TO REMAIN DISTURBED FOR MORE THAN ONE DAY.
26.
AFTER ENTIRE DRAINAGE AREA TO TEMPORARY SKIMMER SEDIMENT BASIN HAS BEEN STABILIZED,
20. WHERE DEEMED APPROPRIATE BY THE ENGINEER OR INSPECTOR, SEDIMENT BASINS AND TRAPS MAY NEED TO BE SURROUNDED WITH AN APPROVED SAFELY FENCE. THE FENCE MUST CONFORM TO
REMOVE TEMPORARY DIVERSION CHANNEL FROM SOUTH TO NORTH, BRINGING AREAS TO FINAL
LOCAL ORDINANCES AND REGULATIONS. THE DEVELOPER OR OWNER SHALL CHECK WITH LOCAL BUILDING OFFICIALS ON APPLICABLE SAFETY REQUIREMENTS. WHERE SAFETY FENCE IS DEEMED APPROPRIATE
GRADE LND STABILIZING AS WORK PROGRESSES. STABILIZE REMAINDER OF SITE WITH SEDIMENT
AND LOCAL ORDINANCES DO NOT SPECIFY FENCING SIZES AND TYPES, THE FOLLOWING SHALL BE USED AS A MINIMUM STANDARD: THE SAFETY FENCE MUST BE MADE OF WELDED WIRE AND AT LEAST 42
FENCE _'ND OTHER EROSION CONTROL DEVICES AS INDICATED ON DRAWINGS.
INCHES HIGH, HAVE POSTS SPACED NO FARTHER APART THAN 8 FEET, HAVE MESH OPENINGS NO GREATER THAN 2 INCHES IN WIDTH AND 4 INCHES IN HEIGHT WITH A MINIMUM OF 14 GAUGE WIRE.
27.
REMOVE TEMPORARY SKIMMER SEDIMENT BASIN AND DISPOSE OF SEDIMENT PROPERLY. BRING
SAFETY FENCE MUST BE MAINTAINED AND IN GOOD CONDITION AT ALL TIMES.
TEMPOFARY SKIMMER SEDIMENT BASIN AREA TO FINAL GRADE TO BE CONVERTED TO
21. OFF -SITE SPOIL OR BORROW AREAS ON STATE OR FEDERAL PROPERTY MUST HAVE PRIOR APPROVAL BY COE AND OTHER APPLICABLE STATE, FEDERAL, AND LOCAL AGENCIES; OTHERWISE APPROVAL
BIO-REdENTION CELL.
Y
ALL WASTE AND BORROW AREAS OFF SITE MUST BE PROTECTED Y SEDIMENT CONTROL MEASURES TA MUST BE GRANTED B, THE LOCAL AUTHORITIES D B SED � E,1E S JRES AND STABILIZED.
28.
ONCE i IN.AL GRADES ARE ESTABLISHED, STABILIZE DISTURBED AREAS WITH PERMANENT GRAVEL
22. SITES WHERE INFILTRATION DEVICES ARE USED FOR THE CONTROL OF STORMWATER, EXTREME CARE MUST BE TAKEN TO PREVENT RUNOFF FROM UN STABIi_.7ED AREAS FROM ENTERING THE
SURFACE OR SEEDING AS INDICATED AND STABILIZE PAVED AREAS WITH GRAVEL BASE,
STRUCTURE DURING CONSTRUCTION. SEDIMENT CONTROL DEVICES PLACED IN INFILTRATION AREAS MUST HAVE BOTTOM ELEVATIONS AT LEAST TWO (2) FEET HIGHER THAN ­IHE FINISH GRADE BOTTOM
29.
INSTALL ALL REMAINING UNDERGROUND UTILITIES AND GRADE THE BIO-RETENTION AREA. WHEN
ELEVATION OF THE INFILTRATION PRACTICE. WHEN CONVERTING A SEDIMENT TRAP TO AN INFILTRATION DEVICE, ALL ACCUMULATED SEDIM_NT MUST BE REMOVED AND DISPOSEC OF PRIOR TO FINAL
FINAL GRADES ARE ACHIEVED, STABILIZE THE BIO-RETENTION AREA WITH TEMPORARY SEEDING OR
GRADING OF INFILTRATION DEVICE.
PERMANENT PLANTINGS.
23. WHEN A STORM DRAIN SYSTEM OUTFALL IS DIRECTED TO A SEDIMENT TRAP OR SEDIMENT BASIN AND THE SYSTEM IS TO BE USED OR TEMPORARILY CONVEYING-EDIIIvIENT LADEN WATER, ALL STORM
30.
CONSTRUCT REMAINING SITE APPURTENANCES. THE CONTRACTOR SHALL STABILIZE PAVEMENT
DRAIN INLETS IN NON -SUMP AREAS SHALL HAVE TEMPORARY ASPHALT BERMS CONSTRUCTED AT THE TIME OF BASE PAVING TO DIRECT GUTTER FLOW INTO THE INLETS TO AVOID SURCHARGING AND
AREAS WITH SUBBASE GRAVEL AS SOON AS PRACTICAL TO REDUCE EROSION POTENTIAL.
OVERFLOW OF INLETS IN SUMP AREAS.
31 .
COMPLETE ALL REMAINING FINE GRADING ON THE SITE, REPLACE TOPSOIL AS APPROPRIATE AND
24. PURSUANT TO G.S. 113A-57(2), THE ANGLE FOR GRADED SLOPES AND FI_LS SHALL BE NO GREATER THAN THE ANGLE THAT CAN BE RETAINED BY VEGETATIVE COVER OR OTHER ADEQUATE EROSION
SEED ALL DISTURBED AREAS THAT WILL NOT BE PAVED OR MULCHED.
CONTROL DEVICES OR STRUCTURES. IN ANY EVENT, SLOPES LEFT EXPOSED WILL, WITHIN 21 CALENDAR DAYS OF COMPLETION OF ANY PHASE OF GRADING, BE PLANTED OR OTHERWISE PROVIDED WITH
32.
COMPLI-TE FINAL PAVING, LANDSCAPING, SEEDING, ETC., AND REMOVE THE JOB TRAILERS FROM
A
TEMPORARY OR PERMANENT GROUNDCOVER, DEVICES, OR STRUCTURES SUFFICIENT TO RESTRAIN EROSION.
THE PROJECT SITE. REMOVE ANY REMAINING STRUCTURAL EROSION AND SEDIMENT CONTROLS
25. PURSUANT TO G.S. 113A-57(3), WHENEVER LANDGDISTURBING ACTIVITY THAT WILL DISTURB MORE THAN ONE ACRE IS UNDERTF,KEN OLI A TRACT, THE PERSON CONDUCTING THE
AND S'ABILIZE ANY REMAINING DISTURBED AREAS.
LAND❑DISTURBING ACTIVITY SHALL INSTALL EROSION AND SEDIMENTATION CONTROL DEVICES AND PRACTICES THAT ARE SUFFICIENT TO RETAIN THE SEDIMENT GENERATED BY THE LANDDISTURBiNG
33.
UPON .;OMPLETION OF THE PROJECT, PRIOR TO LEAVING THE SITE, THE WATER MA.NAGEME_NT
ACTIVITY WITHIN THE BOUNDARIES OF THE TRACT DURING CONSTRUCTION UPON AND DEVELOPMENT OF THE TRACT, AND SHALL PLANT OR OTHERWISE PRO`✓iDE A PERMANENT GROUND COVER
BRANCH AND CONSERVATION DISTRICT ENGINEER SHALL BE NOTIFIED TO INSPECT THE PROJECT.
SUFFICIENT TO RESTRAIN EROSION AFTER COMPLETION OF CONSTRUCTION OR DEVELOPMENT WITHIN A TIME PERIOD TO BE SPECIFIED BY RULE OF THE COMMISSION.
34,
ONCE SITE IS STABILIZED TO THE SATISFACTION OF DENR, FILE THE NOTICE OF TERMINATION
26. PROVISIONS FOR PERMANENT GROUNDCOVER SUFFICIENT TO RESTRAIN EROSION MUST BE ACCOMPLISHED FOR ALL DISTURBED AREAS WITHIN 14 WORItiING DAYS OR 90 CALENDAR DAYS (WHICHEVER iS
(NOT) aS REQUIRED BY THE NO NPDES PERMITTING PROCESS.
SHORTER) FOLLOWING COMPLETION OF CONSTRUCTION OR DEVELOPMENT.
27. SITE INFORMATION:
A. TOTAL AREA OF FACILITY (BASE, CAMPUS, PARK, ETC.) --- 19.60 ACRES C. AREA DISTURBED ___16.37 ACRES
B. TOTAL AREA OF PROJECT SITE --- 19.60 ACRES D. AREA TO BE ROOFED OR PAVED--13.94 ACRES
US Army Corps
of Engineers
Savannah District
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FORT BRAGG SEEDING SPECIFICATION
1. APPLY FERTILIZER/LIME AT RATES AS DETERMINED BY LABORATORY SOIL ANALYSIS OF SOILS AT THE
JOB SITE. IN THE ABSENCE OF THE SOIL ANALYSIS, APPLY SOIL AMENDMENTS AT THE RATES INDICATED
IN STEPS 2 AND 3.
2. AREA WILL BE TILLED TO 4" DEPTH
3. APPLY LIME AT 70 POUNDS PER 1000 SQUARE FEET, OR 1.5 TONS PER ACRE
4. APPLY 10-2020 FERTILIZER AT A RATE OF 850 POUNDS PER .ACRE OR 20 POUNDS PER 1000
SQUARE FEET. THE FERTILIZER SHOULD BE EITHER SLOW TIME RELEASE OR APPLIED IN TWO
APPLICATIONS, HALF AT TIME OF PLANTING AND THE SECOND HALF AFTER PERMANENT SEED GERMINA7 ES.
D 5. THE LIME AND FERTILIZER WILL BE WORKED INTO THE TOP 2 TO 4 INCHES OF SOIL PRIOR TO
SEEDING.
6. SEED MIX AND RATE:
PERMANENT SEEDING
"COOL SEASON": PLANTED BETWEEN 1 SEPTEMBER AND FEBRUARY 28
50 POUNDS PER ACRE WINTER WHEAT (TRITICUM SPELTA). NO RYE GRASS,
25 POUNDS PER ACRE COMMON BERMUDA (CYNODON DACTYLON), HULLED
25 POUNDS PER ACRE COMMON BERMUDA (CYNODON DACTYLON), UNHULLED
"WARM SEASON": PLANTED BETWEEN 1 MARCH AND 31 AUGUST
50 POUNDS PER ACRE GERMAN (SETARIA ITALICA) , BROWN TOP (SETARIA ITALICA), OR FOX TAIL MILLET
(BRACHIARIA RAMOSUM)
50 POUNDS PER ACRE COMMON BERMUDA (CYNODON DACTYLON), HULLED
TEMPORARY SEEDING
"COOL SEASON": PLANTED BETWEEN 1 SEPTEMBER AND FEBRUARY 28
120 POUNDS PER ACRE WINTER WHEAT (TRITICUM SPELTA)
"WARM SEASON": PLANTED BETWEEN 1 MARCH AND 31 AUGUST
65 POUNDS PER ACRE GERMAN (SETARIA ITALICA), BROWN TOP (SETARIA ITALICA), OR FOX TAIL MILLE-
(BRACHIARIA RAMOSUM)
C STRAW MULCH: 4,000 POUNDS PER ACRE. THE GROUND SHOULD BE COMPLETELY COVERED Wi T Fl f,D
BARE SPOT LARGER THAN A QUARTER, THEN TACKED WITH EMULSIFIED ASPHALT. EMULSIFIED ASPHALT
SHALL BE APPLIED AT A RATE HEAVY ENOUGH THAT THE ENTIRE ARFA APPEARS BLACK IN COLOR.
HYDROSEEDING: HYDROSEEDING SHALL ONLY BE ALLOWABLE ON SLOPES STEEPER THAN 1 HORIZONTAL
TO 1 VERTICAL. STEPS 1 THROUGH 4 MUST BE COMPLETED PRIOR TO HYDROSEEDING. HYDROSEEDiNG
SHOULD BE APPLIED IN TWO APPLICATIONS. THE FIRST APPLICATION WILL CONSIST OF 1 /3 OF THE
MULCH AND 2/3 OF THE SEED AND THE SECOND APPLICATION WILL CONSIST OF 2/3 OF THE MULCH
AND 1 /3 OF THE SEED. THE MULCH WILL INCLUDE A TACKIEIER AND WILL BE APPLIED AT A RATE OF
2,000 POUNDS PER ACRE OR THE MANUFACTURER'S RECOMMENDATIOw, WHICHEVER IS HIGHER.
7. EXEMPTIONS: SPECIAL USE AREAS, SUCH AS AIRFIELDS, HELIPADS, GENERAL OFFICER QUARTERS
AND THE HISTORIC DISTRICT. CONTACT THE FORT BRAGG WATER P,JAINAGEMENT BRANCH (WMB) AT
910-396-2301 / 2823/2897 WHEN SEEDING THESE AREAS.
8. UPON COMPLETION OF THE PROJECT, PRIOR TO LEAVING THE SITE, THE WATER MANAGEMENT
BRANCH SHALL BE NOTIFIED TO INSPECT THE PROJECT, POC MR. JACK WILSON AT
396 2301 /2823/2897, EXTENSION 224.
NOTE: G.S. 11>A--57 NO LAND -DISTURBING ACTIVITY SUBJECT TO THIS ARTICLE SHALL BE
UNDERTAKEN EXCEPT IN ACCORDANCE WITH THE FOLLOWING MANDATORY REQUIREMENTS.
(2) THE ANGLE FOR GRADED SLOPES AND FILLS SHALL BE NO GREATER THAN THE ANGLE THAT CAN
BE RETAINED BY VEGETATIVE COVER OR OTHER ADEQUATE EROSION -CONTROL DEVICES OR STRUCTURE'-).
IN ANY EVENT, SLOPES LEFT EXPOSED WILL, WITHIN 21 CALENDAR DAYS OF COMPLETION OF .ANY PHASE
B OF GRADING, BE PLANTED OR OTHERWISE PROVIDED WITH TEMPORAR)" OR PERMANENT GROUND COVET,
DEVICES, OR STRUCTURES SUFFICIENT TO RESTRAIN EROSION.
(3) WHENEVER LAND -DISTURBING ACTIVITY THAT WILL DISTURB MORE THAN ONE ACRE IS UNDERTAKEN
ON A TRACT, THE PERSON CONDUCTING THE LAND -DISTURBING ACTIVITY SHALL INSTALL EROSION AND
SEDIMENTATION CONTROL DEVICES AND PRACTICES THAT ARE SUFFICIENT TO RETAIN THE SEDIMENT
GENERATED BY THE LAND -DISTURBING ACTIVITY WITHIN THE BOUNDARIES OF THE TRACT DURING
CONSTRUCTION UPON AND DEVELOPMENT OF THE TRACT, AND SHALL PLANT OR OTHERWISE PROVIDE A
PERMANENT GROUND COVER SUFFICIENT TO RESTRAIN EROSION AFTER COMPLETION OF CONSTRUCTION
OR DEVELOPMENT WITHIN A TIME PERIOD TO BE SPECIFIED BY RULE OF THE COMMISSION.
ALL PERIMETER DIKES, DITCHES, SWALES, PERIMETER SLOPES OR SLOPES GREATER THAN 3 HORIZONTAL
TO 1 VERTICAL (3:1) SHALL BE PROVIDED TEMPORARY OR PERMANENT STABILIZATION WITH GROUND
COVER AS SOON AS PRACTICABLE BUT IN ANY EVENT WITHIN 7 CALENDAR DAYS.
MAINTENANCE DURING ESTABLISHMENT PERIOD
MAINTENANCE OF THE SEEDED AREAS SHALL INCLUDE PROTECTING EMBANKMENT AND DITCHES FROM,
SURFACE EROSION; MAINTAINING EROSION CONTROL MATERIALS AND MULCH; PROTECTING INSTALLED
AREAS FROM TRAFFIC; MOWING; WATERING; AND POSTFERTILIZATION.
MOWING
A. TURF AREAS: TURF AREAS SHALL BE MOWED TO A MINIMUM 3-INCH HEIGHT WHEN THE TURF
IS A MAXIMUM 4 INCHES HIGH. CLIPPINGS SHALL BE REMOVED WHEN THE AMOUNT CUT
PREVENTS SUNLIGHT FROM REACHING THE GROUND SURFACE.
A B. EROSION CONTROL AREAS: EROSION CONTROL AREAS SHALL BE MOWED TO A MINIMUM 4 INCH
HEIGHT WHEN THE PLANTS ARE A MAXIMUM 8 INCHES HIGH. CLIPPINGS SHALL BE REMOVED
WHEN THE AMOUNT CUT PREVENTS SUNLIGHT FROM REACHING THE GROUND SURFACF.
POST -FERTILIZATION
AFTER THE PERMANENT GRASS HAS BEEN ACCEPTED, AND BETWEEN THE DATES OF APRIL 15 AND
OCTOBER 15, APPLY 425 POUNDS OF FERTILIZER PER ACRE,
REPAIR OR REINSTALL
UNSATISFACTORY STAND OF GRASS PLANTS AND MULCH SHALL BE REPAIRED OR REINSTALLED, AND
ERODED AREAS SHALL BE REPAIRED UNTIL A SATISFACTORY STAND OF GRASS RESULTS.
SKIMMER SD=CENT BASH CONS RUCTOk SPECEICATONS
1. CLEAR, GRUB, AND STRIP THE AREA UNDER THE EMBANKMENT OF ALL VEGETATION
AND ROOT MAT. REMOVE ALL SURFACE SOIL CONTAINING HIGH AMOUNTS OF ORGANIC
MATTER AND STOCKPILE OR DISPOSE OF IT PROPERLY. HAUL ALL OBJECTIONABLE
MATERIAL TO THE DESIGNATED DISPOSAL AREA. PL.v_-E TEMPORARY SEDIMEN L CONTROL
MEASURES BLOW BASIN AS NEEDED.
2. ENSURE THAT FILL MATERIAL FOR THE EmEANKMENT IS FREE OF ROOTS, WOODY
VEGETATION, ORGANIC MATTER, AND OTHER OBJECTIONABLE MATERIAL, PLACE THE FILL IN
LIFTS NOT TO EXCEED 9 INCHES, AND MAvE COMPACT IT. OVER FILL THE
EMBANKMENT 6 INCHES TC ALLOW FOR SETTLEME\:T.
3. SHAPE THE BASIN TO THE SPECIFIED DiMEEJSivf`�S. PREVENT THE SKIMMING DEVICE
FROM SETTLING INTO THE MUD BY EXCAVATING f` i "1LLCIN PIT L!NDER THE SKIMMER OR
PROVIDING A LOW .SUPPORT UNDER THE SKIMMEIF, C-,F STONE OR TIMBER.
4. PLACE THL BARREL ( TYPICALLY 4-INCH SCHEDU1LE 40 PVC PIPE) ON A FIRM,
SMOOTH FOUNDATIOIN OF Ii)PERVIOUS SOIL. DO 1,1-T USE PERVIOUS MATERIAL SUCH AS
SAND, GRAVEL, OR CRUSHED STONE AS BA& .E'lL'L._ AROUND THE PIPE. PLACE THE FILL
MATERIAL AROUND THE PIPE SPILLWAY IN 4-IN(,!-
_AYERS ,AND COMPACT IT UNDER AND
AROUND THE PIPE T 0 AT LEAST THE SAME DEN":ITY AS THE ADJACENT EMBANKMENT.
CARE MUST BE TAKEN NOT TO RAISE THE PIP- r ,ROM THE FIRM CCN7 ACT WITH ITS
FOUNDATION WHEN COMPACTING UNDER THE PIPL_ HAUNCHES,
PLACE A MINIMUM DEPTH OF 2 FEET OF C-1,lPA.CTED BACKFILL OVI_R THE PIPE
SPiLL'4�/AY BEFORE CROSSING IT WITH COIF STRUC1,i0N EQUIPMENT. IN NO f"ASF SHOULD
THE PIPE CONDUIT BE INSTALLED BY CUTTING A TRENCH THROUGH THE D/1M AFTER THE
EMBANKMENT IS COMPLETE.
5. ASSEMBLE THE SKIMMER FOLLOWING THE N'I�yNUFACTURERS INSTRUCTIONS, OR AS
DESIGNED.
6, LAY THE ASSEMBLED SKIMMER ON THE BOTT0M�l OF THE BASIN WITH THI FLEXIBLE
JOINT AT THE INLET OF THE BARREL PIPE, ATTACH THE FLEXIBLF JOINT TO THE BARREL
PIPE AND POSITICN THE SKIMMER OVER THE EXC`MATED PIT OR SUPPORT. BE SURE TO
ATTACH A ROPE -C THE SKIMMER AND ANCHOR i-E TO THE SIDE OF THE BASIN. THIS
WILL BE USED TO PULL THE SKIMMER TO THE SIDE FOR MAINTENAACE,
7. EARTHEN SPILLVUA.YS-INSTALL THE SPILLWAY: �jrlDISTURBED SOIL TO I HE GREATEST
EXTENT POSSIBLE. 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 SHOL!L._D BE LINED WIT' I LAMiflATED PLASTkC
OR IMPERMEABLE DEOTEXTILE FABRIC, THE FABRIC MJST BE WIDE AND LONG ENOUGH
TO COVER THE BOTTOM AND SIDES AND EXTEND ONTO THE TOP OF THE DAM FOR
ANCHORING IN A TRENCH. THE EDGES MAY BE )7ECURED WITH 8-INCH STAPLES OR
PINS. THE FABRIC MUST BE LONG ENOUGH TO EXTEND DOWN THE SLOPE AND EXIT
ONTO STABLE GROUND. THE WIDTH OF THE FABRIC MUST BE ONE PIECE, NOT JOINED
OR SPLICED; 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 WIDTH, MAY BE USED, THE UPPER SFCTION(S) SHOULD
OVERLAP THE LOWER SECTION(S) SO THAT WATIE-_� CANNOT FLOP%' UNDER THE FABRIC.
SECURE THE UPPER EDGE AND SIDES OF THE FABRIC IN A TENCH WITH STAPLES OR
PINS. (ADAPTED FROM "A MANUAL FOR DESIG�"JiNG, INSTALLING AND MAINTAINING
SKIMMER SEDIMENT BASINS." FEBRUARY, 1999. J. N. FAIRCLOTH & SON.).
8, INLETS -DISCHARGE WATER INTO THE BASIN IN A MANNER TO PREVENT EROSION, USE
TEMPORARY SLOPE DRAINS OR DIVERSIONS V"I T H OUTLET PROTECTION TO DIVERT
SEDIMENT --LADEN WATER TO THE UPPER END 0 THE POOL AREA TO IMPROVE BASIN
TRAP EFFICIENCY (IREFFRENCES- RUNOFF CONTROL MEASURES AND OUTLET PROTECTION).
9. EROSION CONTRA+�LCONSTRUCT THE STRUCTURE SC 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 (REFERENCES: SURFACE STABILIZATION).
10. INSTALL POROUS BAFFLES AS SPECIFIED IN PR=,CTiCE 6.65-POROUS BAFFLES.
'1 1. AFTER ALL THE SEDIMENT -PRODUCING AREAS HAVE BEEN PERMANENTLY STABILIZED,
REMOVE THE STRUCTURE AND ALL THE UNSTABLE `SCDJ%/FNT. SMOOTH THE AREA TO
BLEND WITH THE ADJOINING AREAS AND STABILIZE PROPERLY (REFERENCES: SURFACE
STABILIZATION,).
PROJECT AND S TE DESCRIPTION
PROJECT DESCRIPTION
THE PURPOSE OF THIS PROJECT IS TO CONSTRUCT THE TACTICAL EQUIPMENT MAINTENANCE
FACILITY (TEMP) LOCATED IN THE DANTONMENT AREA OF FORT BRAGG, THE HAC€LITY WILL BE
SPREAD OVER TWO BLOCKS BOUNDED BY BUTNER ROAD, KEERANS STREET, TAYLOR STREET, AND
GRUBER ROAD. THIS TEMF PROJECT WILL INCLUDE THE CONSTRUCTION OF A TEME BUILDING, SIX
ORGANIZATIONAL STORAGE BUILDINGS (OSBS), AN UNMANNED AERIAL VEHICLE (UAV) STORAGE
BUILDING, OIL STORAGE, OPEN STORAGE, HAZMAT STORAGE, AND ORGANIZATIONAL VEHICLE
PARKING. THE PROJECT ALSO INC_UDES THE WIDENING OF SPOONER STREET, THE ADDITION OF
TURNING LANES, ADDITIONAL SIDEWALK S ALONG BUTNER ROAD ADJACENT TO THE INTERSECTIONS
WITH KEERANS STREET AND SPOONER STREET AND THE ADDITION OF A PRIVATELY OWNED VEHICLE
(POV) LOT ADJACENT TO SPOONER STREET. THESE FACILITIES WILL BE CONSTRUCTED AROUND
EXISTING IN USE FACILITIES.
THIS PROJECT WILL BE DELIVERED O THE GOVERNMENT UTILIZING THE DESIGN -BUILD PROCEDURE.
THE PROJECT WILL BE CONSTRUCTED IN SEVERAL PHASES SO THAT DESIGN AND CONSTRUCTION
ACTIVITIES OCCUR CONCURRENTLY, THESE PHASES INCLUDE SITE DEMOLITION, EARLY
UTILITIES/GRADING/FOUNDATIONS PREPARATION AND BUILDING CONSTRUCTION.
THE FINAL PRODUCT WILL INCLUDE ALL SITE WORK, INFRASTRUCTURE IMPROVEMENTS, UTILITY
IMPROVEMENTS AND PERMANENT STORMWATER MANAGEMENT FACILITIES. THE EXISTING SITE IS
CURRENTLY DEVELOPED WITH OVER 70% IMPERVIOUS AREA COMPRISED OF CONCRETE HARDSTAND,
EXISTING BUILDINGS, AND PARKING AREAS. THE DEVELOPMENT SITE IS APPROXIMATELY 16 ACRES.
PLEASE SEE THE VICINITY MAP IN APPENDIX C FOR THE SITE LOCATION.
THIS EROSION AND SEDIMENT CONTROL PLAN WILL BE PREPARED TO PROVIDE EROSION AND
SEDIMENT POLLUTION CONTROLS AS REQUIRED BY FORT BRAGG AND THE NCDENR.
SITE DESCRIPTION
THE DEVELOPMENT SITE'S EXISTING CONDITIONS CONSIST OF MULTIPLE BUILDINGS, PAVED AREAS
AND CONCRETE HARDSTAND. THERE ARE SOME TREES WHICH WILL BE REMOVED BY FORT BRAGG
PRIOR TO THE START OF CONSTRUCTION AND SOME AREAS ARE SPARSELY VEGETATED WITH
GRASS. THE SITE SLOPES GENERALLY FROM THE SOUTH TO THE NORTH AT APPROXIMATELY A 2
PERCENT SLOPE, AROUND THE PARKING AREAS THERE ARE SOME STEEP SLOPED EMBANKMENTS
DIFFERENTIATING THE VARIOUS AREAS OF THE SITE BETWEEN PARKING AND ROADS.
THE FACILITY WILL BE SPREAD OVER TWO BLOCKS BOUNDED BY BUTNER ROAD, KEERANS STREET,
TAYLOR STREET, AND GRUBER ROAD. SPOONER STREET BISECTS THE SITE AREA AND AS PART
OF THIS PROJECT IT IS PROPOSED TO BE WIDENED BETWEEN BUTNER ROAD AND KERO STREET.
SEVERAL EXISTING STORM SEWER FACILITIES ARE IN THE PROXIMITY OF THE DEVELOPMENT SITE.
DUE TO THE GRADE OF THE DEVELOPMENT TWO SEPARATE POINTS OF CONNECTION TO THE
EXISTING STORM SEWER SYSTEM HAVE BEEN DENTIFIED AND WILL BE UTILIZED AS THE DISCHARGE
POINTS FOR THE STORMWATER RUNOFF FROM THE DEVELOPMENT SITE. THE TWO SEPARATE
AREAS THAT DRAIN TO THESE TWO DISCHARGE POINTS WILL BE TREATED AS SPATE DRAINAGE
AREAS AND CONTROL THE STORMWATER RUNOFF INDIVIDUALLY. FOR THE PURPOSE OF THIS
REPORT THESE TWO AREAS HAVE BEEN IDENTIFIED AS AREA A AND AREA B. THE STORM SEWER
RUNOFF FROM AREA A ALONG GRUBER ROAD BETWEEN BUTNER ROAD AND TAYLOR STREET WILL
DISCHARGE INTO THE 24 INCH STOFM SEWER CULVERT AT THE INTERSECTION OF BUTNER AND
GRUBER ROADS. THE STORMWATER RUNOFF FROM THE DEVELOPMENT ALONG SPOONER STREET
BETWEEN BUTNER ROAD AND TAYLOR STREET AND ALONG BUTNER ROAD WILL DISCHARGE INTO
THE EXISTING 48 INCH STORM SEWER CULVERT ALONG BUTNER ROAD. AREA A AND B CAN BE
SEEN ON THE ATTACHED SITE DRAW NG IN APPENDIX F.
STORMWATER RUNOFF FROM THE SITE FLOWS INTO AN UNNAMED TRIBUTARY TO BEAVER CREEK.
BEAVER CREEK HAS BEEN ASSIGNED A CLASS C (FISHABLE/SWIMMABLE) RATING BY THE NCDENR
DEPARTMENT OF WATER QUALITY (DWQ). THIS IS THE MINIMUM STANDARD THAT ALL NORTH
CAROLINA WATERS MUST MEET. THE ENTIRE PROJECT AREA IS WIHIN THE CAPE FEAR RIVER
BASIN, WETLANDS DO NOT EXIST ON THE SITE, AND THE RIVER BASIN HAS NO RIPARIAN BUFFER
REQUIREMENTS.
SKIMMER SEED MENT BASIN MAINTENANCE
SKIMMER SEDIMENT BASIN MAINTENANCE
INSPECT SKIMMER SEDIMENT BASINS AT LEAST WEEKLY AND AFTER EACH SIGNIFICANT
(ONE-HALF INCH OR GREATER) RAINFALL EVENT AND REPAIR IMMEDIATELY. REMOVE SEDIMENT
AND RESTORE THE BASIN TO ITS ORIGINAL DIMENSIONS WHEN SEDIMENT ACCUMULATES TO
ONE ---HALF THE HEIGHT OF THE FIRST BAFFLE, PULL THE SKIMMER TO ONE SIDE SO THAT THE
SEDIMENT UNDERNEATH IT CAN BE EXCAVATED. EXCAVATE THE SEDIMENT FROM THE ENTIRE
BASIN, NOT JUST AROUND THE SKIMMER OR THE FIRST CELL, MAKE SURE VEGETATION
GROWING IN THE BOTTOM OF THE BASIN DOES NOT HOLD DOWN THE SKIMMER.
REPAIR THE BAFFLES IF THEY ARE DAMAGED, RE -ANCHOR THE BAFFLES IF WATER IS FLOWING
UNDERNEATH OR AROUND THEM.
IF THE SKIMMER IS CLOGGED WITH TRASH AND THERE IS WATER IN THE BASIN, USUALLY
JERKING ON THE ROPE WILL MAKE THE SKIMMER BOB UP AND DOWN AND DISLODGE THE
DEBRIS AND RESTORE. FLOW. IF THIS DOES NOT WORK, PULL THE SKIMMER OVER TO THE
SIDE OF THE BASIN AND REMOVE THE DEBRIS. ALSO CHECK THE ORIFICE INSIDE THE SKIMMER
TO SEE IF IT IS CLOGGED; IF SO REMOVE THE DEBRIS.
IF THE SKIMMER ARM OR BARREL PIPE IS CLOGGED, THE ORIFICE CAN BE REMOVED AND THE
OBSTRUCTION CLEARED WITH A PLLMBER'S SNAKE OF BY FLUSHING WITH WATER. BE SURE
AND REPLACE THE ORIFICE BEFORE REPOSITIONING THE SKIMMER.
CHECK THE FABRIC LINED SPILLWAY FOR DAMAGE AND MAKE ANY REQUIRED REPAIRS WITH
FABRIC THAT SPANS THE FULL WlD--H OF THE SPILLWAY. 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 SKIMMER AND POOL AREAS,
FREEZING WEATHFR CAN RESULT IN ICE FORMING IN THE BASIN. SOME SPECIAL PRECAUTIONS
SHOULD BE TAKEN IN THE WINTER TO PREVENT THE SKIMMER FROM PLUGGING WITH ICE.
US Army Corps
of Engineers 11
Savannah District
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