SWG030055_Plansheet - Other_20240312 (3)

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ROCKFISH B4 . 9 SOLAR UTILITY STATION
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EROSION AND SEDIMENT CONTROL PLAN
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FOR INITIAL SITE TREE CLEARING
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CUMBERLAND COUNTY, FAYETTEVILLE, NC
FAYETTEVILLE PUBLIC WORKS SCALE: 1"=2000'
PROJECT DATAZ:a� SS/ �•9�;`
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SHEET INDEX SEAL
PROPERTY DATA: CITY OF FAYETVILLE
0454-02-0075 i s 056748 t
COMMISSION DB 2433, PG 0629 CGO01 COVER SHEET rev("
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PB 412 PG 40
44.73 ACRES CGO02 CONSTRUCTION SEQUENCE LEGEND AND NOTES '%, g/"'R„'NP���``
FAYETTEVILLE NORTH CA R O L I N A PROPOSED DISTURBANCE AREA: 27.63 ACRES C0003 GROUND STABILIZATION AND MATERIALS HANDLING 03/D2/202,-4-
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SITE ADDRESS: 2536 TRACY HALL ROAD CGO04 SELF-INSPECTION, RECORD KEEPING, AND RECORDING
FAYETTEVILLE, NC 28306
COUNTY: CUMBERLAND COUNTY CG100 EXISTING CONDITIONS o N M
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12-DIGIT HUC WATERSHED: LITTLE ROCKFISH CREEK CG101 PROPERTY DATA
030300040611 w
CG102 PRE-CLEA ING DRAINAGE NALY IS
10-DIGIT HUC WATERSHED: ROCKFISH CREEK
0303000406 CG103 LIMIT OF DISTURBANCE PROPERTY DATA
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8-DIGIT HUC WATERSHED: UPPER CAPE FEAR 1
03030004 CG200 TREE CLEARING PHASE I
CUMBERLAND COUNTY ZONING: PLANNED INDUSTRIAL DISTRICT CG201 TREE CLEARING PHASE II
DEVELOPER: FAYETTEVILLE PUBLIC WORKS CG300 POST-CLEARING DRAINAGE ANALYSIS Z
COMMISSION
CONTACT: DAVID DESCHAMPS CG400 BASIN DETAILS 0
955 OLD WILMINGTON ROAD w
FAYETTEVILLE, NC 28301
910-263-1453 CG401 BASIN DETAILS
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ENGINEER: LAURA R. HARRIS, PE CG402 BASIN DETAILS
(NC PE LICENSE N0. 056748) CG500 GRADING AND EROSION CONTROL DETAILS
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H ME OWN UTILITY BOOTH & ASSOCIATES, LLC o cy
(COMPANY LICENSE NO. NC-F-0221) � 0
2300 REXWOODS DRIVE, SUITE 300 CG501 GRADING AND EROSION CONTROL DETAILS CQ Z
RALEIGH, NC 27607 919-851-8770
[e-mail] CG502 GRADING AND EROSION CONTROL DETAILS
PLAN PREPARED: 02/21/2024
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PROJECT NARRATIVE
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FAYETTEVILLE PUBLIC WORKS COMMISSION (FAYETTEVILLE PWC) PLANS TO 00 (n
CONSTRUCT A SOLAR UTILITY STATION ON A SITE OFF OF TRACY HALL ROAD IN IIx
FAYETTEVILLE, NC. THIS DRAWING SET IS SOLELY FOR THE TREE CLEARING THAT WILL
OCCUR ON THE SITE FOR THE INSTALLATION OF THE SOLAR UTILITY STATION BY Q j
PREPARED BY : FAYETTEVILLE PWC. THIS PLAN AND PERMIT COVERAGE REQUEST IS JUST FOR THE O
TREE CLEARING AND THE ASSOCIATED EROSION CONTROL DEVICES; SEPARATE PERMIT U?y Q C)
COVERAGE WILL BE SOUGHT AT A LATER DATE FOR THE SOLAR UTILITY STATION.
SINCE THE SOLAR UTILITY STATION IS TO BE CONSTRUCTED NOT LONG AFTER TREE w Q w
CLEARING, THE EROSION CONTROL DEVICES ARE TO REMAIN IN PLACE AND ONLY Z J
TEMPORARY SEEDING/STABILIZATION IS TO BE USED UNTIL THE PERMIT FOR THE O 0
SOLAR UTILITY STATION IS OBTAINED. THE EROSION AND SEDIMENT CONTROL bi
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MEASURES WILL BE MAINTAINED UNTIL THE PERMIT FOR THE SOLAR UTILITY STATION 0 a
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IS OBTAINED, AT WHICH THE EROSION CONTROL DEVICES WILL BE COVERED UNDER a- 0
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Associates
THE NEW PERMIT AND THE TREE CLEARING PERMIT WILL BE CLOSED OUT. � • DRAWN BY: JEH/REA
CHECKED BY: LRH
APPROVED BY: LRH
2300 Rexwoo s Drive Suite 300, Raleigh NC 27607 KNOW WHAT'S BELOW DATE: 06/27/2023
NC F-0221 ALWAYS CALL 811 SCALE: AS SHOWN
BEFORE YOU DIG FILE NUMBER: 12549CG
It's fast. It's free. It's the law. SHEET:
CGO01

LEGEND CONSTRUCTION SEQUENCE GENERAL NOTES GRADING NOTES
PHASE 1 1. PERMITS PENDING. 1. CONTRACTOR WILL BE RESPONSIBLE FOR MAINTAINING GRADE STAKES AND REFERENCE
�/ SILT FENCE OUTLET STAKES. THE CONTRACTOR SHALL IMMEDIATELY NOTIFY THE OWNER OR THEIR ENGINEER IF E"
1. OBTAIN REQUIRED PERMITS PRIOR TO THE COMMENCEMENT OF CONSTRUCTION. 2. CONTACT NCDEQ FAYETTEVILLE REGIONAL OFFICE AT 910-4343-3300 TO SCHEDULE A ANY STAKES ARE LOST OR DESTROYED AS THE RESULT OF VANDALISM OR ACTIONS ^V�
POWER POLE OWNERS ENGINEER TO CONTACT NCDEQ FAYETTEVILLE REGIONAL OFFICE AT PRE-CONSTRUCTION MEETING AT LEAST 72 HOURS PRIOR TO PROJECT ACTIVATION. TAKEN BY SOMEONE OTHER THAN THE CONTRACTOR. UPON NOTIFICATION, THE OWNER OR
910-4343-3300 TO INVITE TO THE PRE-CONSTRUCTION MEETING AT LEAST 72 THE ENGINEER WILL REPLACE THESE STAKES. F-+
GUY AND ANCHOR COMBINATION HOURS PRIOR TO PROJECT ACTIVATION. 3. THE FOLLOWING MUST BE KEPT ON SITE UNTIL THE E.S.C. PLAN HAS BEEN CLOSED OUT
BY LAND QUALITY: 2. CONSTRUCTION OF EROSION AND SEDIMENT CONTROL DEVICES IS TO BE CARRIED OUT AS Z
2. UNDERGROUND UTILITIES NOT SHOWN ON THIS DRAWING MAY EXIST; DESCRIBED IN THE CONSTRUCTION SEQUENCE AND THEIR LOCATION IS TO BE AS SHOWN
EDGE OF PAVED ROAD CONTRACTOR SHALL VERIFY LOCATION OF BURIED UTILITIES PRIOR TO START OF 3.1.1.1. 30 DAYS OF SELF INSPECTION RECORDS, ON THE DRAWINGS. CERTAIN DEVICES ARE TO BE CONSTRUCTED BEFORE GRADING
CONSTRUCTION. 3.1.1.2. RAIN GAUGE, OPERATIONS BEGIN. ALL DEVICES ARE TO BE MAINTAINED DURING CONSTRUCTION AND O
EX OVERHEAD POWER LINE 3.1.1.3. APPROVAL CERTIFICATE/LETTER, TEMPORARY ONES REMOVED AFTERWARD. W
3. INSTALL STORM WATER INSPECTION BOX WITH RAIN GAUGE, STORM WATER 3.1.1.4. APPROVED PLAN AND NPDES PERMIT.
INSPECTION REPORT, AND A COPY OF THE PERMITS. THE INSPECTION BOX WILL 3. ALL VEGETATION AND DEBRIS SHOULD BE REMOVED FROM THE SITE. ALL SUBGRADE
OE EXISTING OVERHEAD POWER LINE BE PLACED IN A PROMINENT LOCATION BY THE MAIN ROAD AND DRIVEWAY. THESE ITEMS SHOULD BE LOCATED NEAR THE MAIN CONSTRUCTION ENTRANCE. FAILURE TO SOILS SHALL BE FREE OF ORGANIC MATERIAL FROM GRADING ACTIVITY COMPACTED, AND
THE SELF-INSPECTION RECORDS FOR LAND DISTURBING ACTIVITIES PER G.S. MAINTAIN THESE ITEMS ON SITE VIOLATES THE NPDES PERMIT. INSPECTED BY AN APPROVED GEOTECHNICAL ENGINEER PRIOR TO THE PLACEMENT OF FILL x
-SF SF SILT FENCE 113A-54.1 MUST BE COMPLETED WEEKLY AND AFTER EACH SIGNIFICANT MATERIAL. ANY MATERIAL TO BE STOCKPILED ON SITE SHALL BE STOCKPILED WITHIN THE
RAINFALL (ONE INCH OR GREATER WITHIN TWENTY-FOUR HOURS). THIRTY (30) 4. PROPOSED CUT/FILL SIDE SLOPES ARE 3H: 1 V. CONSTRUCTION LIMITS AND IN DESIGNATED AREAS.
DITCH CENTERLINE DAYS OF SELF-INSPECTION REPORTS SHALL BE MAINTAINED IN THE INSPECTION
BOX AT ALL TIMES. EXTRA COPIES OF THE SELF-INSPECTION FORMS SHOULD BE 5. ALL STOCKPILES SHALL BE SURROUNDED BY SILT FENCE ON ALL SIDES EXCEPT FOR THE 4. ANY OFF-SITE BORROW AND WASTE REQUIRED FOR THIS PROJECT MUST COME FROM A
PLACED IN THE INSPECTION BOX. INGRESS/EGRESS. (3 SIDES) ALL STOCKPILES MUST HAVE A MINIMUM 5' SEPARATION SITE WITH AN APPROVED EROSION CONTROL PLAN, A SITE REGULATED UNDER THE MINING
- - - - C/E BUILDING SETBACK LINE FROM STOCKPILE TOE TO SILT FENCE AND OTHER EROSION CONTROL MEASURES. ACT OF 1971, OR A LANDFILL REGULATED BY THE DIVISION OF SOLID WASTE 1A o
4. INSTALL CONSTRUCTION ENTRANCE PRIOR TO ANY LAND DISTURBING ACTIVITIES. MANAGEMENT. TRASH/DEBRIS AND OTHER SPOILS FROM DEMOLITION ACTIVITIES MUST BE
- - ADJOINING PARCEL LINE 6. CONTRACTOR IS RESPONSIBLE TO REVIEW ANY GEOTECHNICAL REPORT ATTACHED TO THE DISPOSED OF AT A FACILITY REGULATED BY THE DIVISION OF SOLID WASTE MANAGEMENT. M Z
5. FLAG CONSTRUCTION LIMITS AND CLEAR WHAT IS NECESSARY TO INSTALL SILT GRADING SPECIFICATIONS FOR SITE SOILS INFORMATION. [15A NCAC 413.0110] V 1,
FENCING, SILT FENCE OUTLETS, CHANNELS, BERM, AND SKIMMER/SEDIMENT p M
WOODS LINE BASINS. 7. SITE TO BE CLEARED, GRADED AND STABILIZED WITHIN SIXTY (60) CALENDAR DAYS. a 5
FENCE LINE 6. CLEAR AND GRUB ONLY IN AREAS WHERE EROSION CONTROL MEASURES ARE TO 8. ALL BARE SOILS ARE TO BE STABILIZED UNDER CONDITIONS OUTLINED IN THE NPDES � z
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BE INSTALLED. ALL DEBRIS/SPOILS TO BE REMOVED AND STORED AT A NCDEQ PERMIT, OR, IF IN A CRITICAL AREA, BY THE END OF THE DAY.
P PROPERTY LINE APPROVED LOCATION. TREES CAN BE CUT AND HAULED AWAY OR DISPOSED OF DRIVEWAY NOTES °
WITH A CONTROLLED BURN. 9. PERMANENT GROUND COVER WILL BE PROVIDED FOR ALL DISTURBED AREAS WITHIN 14 p
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WORKING DAYS OR NO MORE THAN 90 CALENDAR DAYS, WHICHEVER IS SHORTER. G.S. 1. THE ACCESS DRIVE SHALL BE SURFACED PER THE DETAIL ON SHEET CG500. C o
- - EDGE OF UTILITY EASEMENT 7. INSTALL SILT FENCE, SILT FENCE OUTLETS, SKIMMER BASINS, SEDIMENT BASIN, 113A-57(3). m
DRAINAGE CHANNELS, AND BERM AS SHOWN ON SHEET CG200. IMMEDIATELY 2. THE SUBGRADE, DIRECTLY BELOW ACCESS DRIVE AND TWO (2) FEET OUTSIDE OF THE
too► too► EDGE OF 100-YEAR FLOODPLAIN STABILIZE BASIN/CHANNEL/BERM SIDE SLOPES WITH ROLLED EROSION CONTROL 10. STABILIZATION WILL BE PROVIDED FOR ALL DISTURBED AREAS WITHIN 14 DAYS AFTER DRIVEWAYS SHALL BE MECHANICALLY COMPACTED IN THE TOP 12" TO AT LEAST
PRODUCT. CONSTRUCTION ACTIVITY IS COMPLETE UNLESS CONSTRUCTION ACTIVITY IS GOING TO NINETY-FIVE PERCENT (95%) OF THE MAXIMUM DRY DENSITY AT OPTIMUM MOISTURE
SOD-LOD-LOD DISTURBANCE LIMIT RESUME WITHIN 21 DAYS, SLOPES 3H: 1 V OR STEEPER TO BE STABILIZED WITHIN 7 DAYS. CONTENT AS DETERMINED BY ASTM D698. THE DRIVEWAY SUBGRADE SHALL BE
8. INSTALL STOCKPILE LOCATION AND ASSOCIATED PERIMETER SILT FENCE. MECHANICALLY COMPACTED DIRECTLY BELOW ONLY IN THE TOP 12" TO AT LEAST
11. ADDITIONAL PERTINENT EROSION CONTROL MEASURES TO BE DETAILED IN OVERALL SITE
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- • - 50' WETLANDS OFFSET PHASE 2 GRADING AND EROSION CONTROL PLAN, PHASES 1-11. NINETY-FIVE PERCENT (95%) OF THE MAXIMUM DRY DENSITY AT OPTIMUM MOISTURE
CONTENT AS DETERMINED BY ASTM D698.
DRAINAGE AREA BOUNDARY 9. CLEAR AND GRUB WITHIN THE REMAINDER OF THE CONSTRUCTION LIMITS. 12. ALL SUBGRADE, FILL, AND STONE SHALL BE COMPACTED AS SPECIFIED IN THE GRADING ����`�� _f
SPECIFICATIONS. 3. MINIMUM CONSTRUCTION ENTRANCE THICKNESS SHALL BE SIX INCHES (6")• SS/
10. STABILIZE AREA WITH WITH LIME, SEED, FERTILIZER, STRAW AND TACK
SITE SOILS BOUNDARY ACCORDING TO THE APPROVED SEEDING APPLICATION RATES AND SPEC. SEED 13. FOLLOW CONSTRUCTION SEQUENCE NOTES FOR GENERAL PROCESS. 4. COMPACTION TESTING SHOULD BE PERFORMED ONCE PER ONE-HUNDRED LINEAL FEET =Z?�4� 9l':7s
GRADED SLOPES AND DENUDED AREAS FOLLOWING INITIAL SOIL DISTURBANCE, (100') MINIMUM. SEAL
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�HHH� BAFFLE 14. LAT/LONG COORDINATES SHOWN IN THIS PLAN SET WERE DERIVED FROM NORTH CAROLINA 056748 t
11. SEEDING MUST BE DONE WITHIN 7 DAYS FOR SLOPES 3: 1 OR GREATER AND 14 STATE PLANE COORDINATE SYSTEM. (NAD83/2011 US SURVEY FEET) DISTANCES SHOWN % '•F Q:�° co
EXISTING DIRT ROAD DAYS FOR ALL OTHERS. •...,, .
ARE US SURVEY FOOT GRID DISTANCES. ��GR ... P�O�•
PP 12. HAUL AWAY OR DISPOSE OF ANY EXCESS SOILS NOT NEEDED TO BALANCE SITE. 15. EXISTING SITE FEATURES BASED ON A PRELIMINARY SURVEY TITLED, TOPOGRAPHIC
p EXISTING POWER POLE "TOPOGRAPHIC
ANY TOPSOIL IS TO REMAIN STOCKPILED, PROTECT WITH SILT FENCING
AROUND PERIMETER. SURVEY OF ROCKFISH SOLAR FARM FOR FAYETTEVILLE PUBLIC WORKS COMMISSION ,
EXISTING GUY AND ANCHOR COMBINATION PREPARED BY MCKIM & CREED, 1730 VARSITY DRIVE SUITE 500, RALEIGH, NC 27607. © 06/2023
13. ALL EROSION AND SEDIMENT CONTROL PROPERTIES WILL BE INSPECTED WEEKLY WETLANDS AREAS DERIVED FROM A WETLAND DELINEATION REPORT PERFORMED BY ECS
SOUTHEAST LLP WITH A DATE OF AUGUST 21. 2023. w o 0
AND AFTER EACH SIGNIFICANT RAINFALL EVENT. NEEDED REPAIRS WILL BE N
R/W EDGE OF PUBLIC ROAD RIGHT-OF-WAY MADE IMMEDIATELY, WEEKLY AND AFTER EACH SIGNIFICANT RAINFALL EVENT o N o
16. CLARIFICATIONS CAN BE ADDRESSED BY CONTACTING LAURA HARRIS, PE o 0
5 (ONE INCH OR GREATER WITHIN TWENTY-FOUR HOURS). Email: [e-mail] / Phone: (919) 851-8770
1 EXISTING CONTOURS, 1.OFT INTERVAL
14. INSPECTIONS TO BE PERFORMED AND MAINTENANCE OF EROSION CONTROL w
-5 DEVICES TO BE CONTINUED UNTIL PERMIT COVERAGE CAN BE TRANSFERRED EROSION AND SEDIMENT CONTROL NOTES
�1 PROPOSED CONTOURS, 1.OFT INTERVAL FROM PERMIT COVERAGE FOR TREE CLEARING TO FUTURE PERMIT COVERAGE
FOR SOLAR UTILITY STATION. AT THIS TIME THE NOTICE OF TERMINATION OF 1. CONSTRUCTION OF EROSION AND SEDIMENT CONTROL DEVICES IS TO BE CARRIED OUT AS
THE NPDES PERMIT IS TO BE SUBMITTED TO NCDEQ. COORDINATION BETWEEN DESCRIBED IN THE CONSTRUCTION SEQUENCE AND THEIR LOCATION IS TO BE AS SHOWN
FAYETTEVILLE PWC AND BOOTH & ASSOCIATES REQUIRED BEFORE PERMIT ON THE DRAWINGS. ALL DEVICES ARE TO BE MAINTAINED DURING CONSTRUCTION.
50' BUFFER CLOSE-OUT.
2. INSPECT SILT FENCE OUTLETS WEEKLY AFTER EACH SIGNIFICANT RAINFALL EVENT (ONE
INCH OR GREATER WITHIN TWENTY-FOUR HOURS) CLEAR MESH WIRE OF DEBRIS OR
OTHER OBJECTS TO PROVIDE ADEQUATE FLOW FOR SUBSEQUENT RAINS. TAKE CARE NOT
TREE CLEARING AREA TO DAMAGE OR UNDERCUT THE WIRE MESH DURING SEDIMENT REMOVAL. REPLACE STONE Z
AS NEEDED. 0
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3. ADD ADDITIONAL SILT FENCE SECTIONS AS NEEDED IN ORDER TO ENSURE ADEQUATE
EROSION PROTECTION AND SILT FENCE INTEGRITY.
CONSTRUCTION ENTRANCE
4. ADD SEED AND MULCH TO ANY DISTURBED SLOPES AS NEEDED. ALL SEEDED AREAS WILL
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BE CHECKED REGULARLY TO SEE THAT A GOOD STAND IS MAINTAINED. AREAS WILL BE uj
FERTILIZED AND RESEEDED AS NEEDED.
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5. ADD COIR WATTLES THROUGHOUT SITE AS NEEDED AS SLOPE BREAKS AND WHERE 0 cy
EXCESSIVE STORM WATER � 0
VELOCITIES AND SCOURING ARE OBSERVED. � z
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000000o LAYDOWN AREA 6. ALL BARE SOILS ARE TO BE STABILIZED UNDER CONDITIONS OUTLINED IN THE CURRENT
00 D0 000 NPDES PERMIT, OR, IF
IN A CRITICAL AREA, BY THE END OF THE DAY. ALL DISTURBED AREAS FLATTER THAN
3: 1 TO BE STABILIZED
STOCKPILE LOCATION WITHIN 14 DAYS. SLOPES 3: 1 OR STEEPER TO BE STABILIZED WITHIN 7 DAYS. W Ld
7. PERMANENT GROUNDCOVER TO BE INSTALLED IN ACCORDANCE WITH NCDEQ 0
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CONSTRUCTION = 13- Lv Lv
STORMWATER GENERAL PERMIT NCG010000 FOR ALL DISTURBED AREAS WITHIN 14 N O D �-
0AREA OF TEMPORARY SEEDING WORKING DAYS OR W cy Z
90 CALENDAR DAYS (WHICHEVER IS SHORTER) FOLLOWING COMPLETION OF CONSTRUCTION YLLJ
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DEVELOPMENT. 00 O Q
P S AREA OF PERMANENT SEEDING
8. PERIMETER SEDIMENT CONTAINMENT DEVICES ARE TO REMAIN IN OPERATING CONDITION Q U0
UNTIL PERMANENT VEGETATION IS ESTABLISHED. Ix0 0
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9. THE CONTACT PERSON RESPONSIBLE FOR EROSION CONTROL MAINTENANCE FOR PWC Q Ix Ld
FAYETTEVILLE IS DAVID DESCHAMPS. PHONE: (910) 263-1453 - EMAIL: Ix Z
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[e-mail] Z J � O J
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DRAWN BY: JEH/REA
CHECKED BY: LRH
APPROVED BY: LRH
DATE: 06/27/2023
SCALE: AS SHOWN
FILE NUMBER: 12549CG
SHEET:
CGO02

GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES FOR COMPLIANCE WITH EQUIPMENT AND VEHICLE MAINTENANCE ONSITE CONCRETE WASHOUT
THE NCG01 CONSTRUCTION GENERAL PERMIT STRUCTURE WITH LINER
1. Maintain vehicles and equipment to prevent discharge of fluids.
Implementing the details and specifications on this plan sheet will result in the construction A HIGH MIN SANDBAGS (TYP.)
2. Provide drip pans under any stored equipment. o 0 OWEFl TR¶ON B �GHSTAPLES
O O SANDBAGS (TYP.) SOIL BERM 10 MIL COHESIVE &
activity being considered compliant with the Ground Stabilization and Materials Handling O O OR STAPLES O O O O /f10 MIL PLASTIC LINING LOW FILTRATION
sections of the NCG01 Construction General Permit Sections E and F respectively). The 3. Identify leaks and repair as soon as feasible, or remove leaking equipment from the O SIDE SLOP PLASTIC
SANDBAGS (TYP.) O o ( ) E SLOP SOIL BERM z
SILT FENCE
TYP
TYP
( / project. O 0 ( �OR STAPLES 0 0 0�
permittee shall comply with the Erosion and Sediment Control plan approved by the 0 0 0 0 „ `I xa �r
delegated authority having jurisdiction. All details and specifications shown on this sheet 4. Collect all spent fluids, store in separate containers and properly dispose as A t �� 0 3 SECTION B-B w
hazardous waste (recycle when possible). B
may not apply depending on site conditions and the delegated authority having jurisdiction. SANDBAGS (TYP.) NOTES:
CLEARLY MARKED SIGNAGE SECTION A-A OR STAPLES 1. ACTUAL LOCATION DETERMINED IN
5. Remove leaking vehicles and construction equipment from service until the problem CONCRETE NOTING DEVICE (18"X24" MIN.) FIELD
WASHOUT NOTES: CLEARLY MARKED SIGNAGE
1. ACTUAL LOCATION DETERMINED IN FIELD CONCRETE NOTING DEVICE (18"X24" MIN.) 2. THE CONCRETE WASHOUT
has been corrected. WASHOUT STRUCTURES SHALL BE MAINTAINED
SECTION E: GROUND STABILIZATION 2. THE CONCRETE WASHOUT STRUCTURES SHALL WHEN THE LIQUID AND/OR SOLID
BE MAINTAINED WHEN THE LIQUID AND/OR SOLID REACHES 75%OF THE STRUCTURES
6. Bring used fuels lubricants coolants hydraulic fluids and other petroleum products REACHES 75�OF THE STRUCTURES CAPACITY. HOLDINCAPACITY TO PROVIDE ADEQUATE
Required Ground Stabilization Timeframes , , PLAN 3.CONCRETE WASHOUT STRUCTURE NEEDS TO BE PLAN NCHESGOFAFR TY EI 0 RD. A MINIMUM 12
to a recycling or disposal center that handles these materials. CLEARY MARKED WITH SIGNAGE NOTING DEVICE. 3CONCRETE WASHOUT STRUCTURE. DS TO BE
Stabilize within this SIGNAGE NOTI GLEARY DEVICE.ARKED WITH
many calendar BELOW GRADE WASHOUT STRUCTURE ABOVE GRADE WASHOUT STRUCTURE 1LO
Site Area Description Timeframe variations NOT TO SCALE NOT TO SCALE 0
days after ceasing LITTER, BUILDING MATERIAL AND LAND CLEARING WASTE ._ �,
land disturbance 1. Never bury or burn waste. Place litter and debris in approved waste containers. w
a Perimeter dikes, I?
( ) 2. Provide a sufficient number and size of waste containers (e.g dumpster, trash CONCRETE WASHOUTSLL
swales, ditches, and 7 None receptacle) on site to contain construction and domestic wastes. 1. Do not discharge concrete or cement slurry from the site. ca
perimeter slopes
3. Locate waste containers at least 50 feet away from storm drain inlets and surface 2. Dispose of, or recycle settled, hardened concrete residue in accordance with local o 1
(b) High Quality Water 7 None waters unless no other alternatives are reasonably available. and state solid waste regulations and at an approved facility. Im
(HQW) Zones 4. Locate waste containers on areas that do not receive substantial amounts of runoff 3. Manage washout from mortar mixers in accordance with the above item and in
es are If slopes 10' or less in length and are from upland areas and does not drain directly to a storm drain, stream or wetland. addition place the mixer and associated materials on impervious barrier and within
(c) Slopes steeper than p g 5. Cover waste containers at the end of each workday and before storm events or lot perimeter silt fence. W�
3:1 7 not steeper than 2:1, 14 days are Y
allowed provide secondary containment. Repair or replace damaged waste containers. 4. Install temporary concrete washouts per local requirements, where applicable. If an
-7 days for slopes greater than 50' in 6. Anchor all lightweight items in waste containers during times of high winds. alternate method or product is to be used, contact your approval authority for
length and with slopes steeper than 4:1 7. Empty waste containers as needed to prevent overflow. Clean up immediately if review and approval. If local standard details are not available, use one of the two ss�'
-7 days for perimeter dikes, swales, containers overflow. types of temporary concrete washouts provided on this detail. _z:'a� ti.�<::7
(d) Slopes 3:1 to 4:1 14 ditches, perimeter slopes and HQW 8. Dispose waste off-site at an approved disposal facility. 5. Do not use concrete washouts for dewatering or storing defective curb or sidewalk SEAL
sections. Stormwater accumulated within the washout may not be pumped into or 056748 t
Zones 9. On business days, clean up and dispose of waste in designated waste containers. Y p p �`..F
discharged to the storm drains stem or receiving surface waters. Liquid waste must %9 '''''N�I"� '''���'�
-10 days for Falls Lake Watershed g Y g q ''%,�'q '••••"HP�;.��'
be pumped out and removed from project. %;,; R
-7 days for perimeter dikes, swales, PAINT AND OTHER LIQUID WASTE
6. Locate washouts at least 50 feet from storm drain inlets and surface waters unless it
e Areas with slopes ditches, perimeter slopes and HQW Zones 1. Do not dump paint and other liquid waste into storm drains, streams or wetlands. © 06/2023
( ) 14 -10 days for Falls Lake Watershed unless 2. Locate paint washouts at least 50 feet away from storm drain inlets and surface can be shown that no other alternatives are reasonably available. At a minimum, o 0
flatter than 4:1 install protection of storm drain inlet(s) closest to the washout which could receivebi
there is zero slope waters unless no other alternatives are reasonably available. spills or overflow. N CD
Note: After the permanent cessation of construction activities, an areas with temporary 3. Contain liquid wastes in a controlled area.
p Y p Y 7. Locate washouts in an easily accessible area, on level ground and install a stone
ground stabilization shall be converted to permanent ground stabilization as soon as 4. Containment must be labeled, sized and placed appropriately for the needs of site. entrance pad in front of the washout. Additional controls may be required by the w
practicable but in no case longer than 90 calendar days after the last land disturbing 5. Prevent the discharge of soaps, solvents, detergents and other liquid wastes from approving authority.
activity. Temporary ground stabilization shall be maintained in a manner to render the construction sites. 8. Install at least one sign directing concrete trucks to the washout within the project
surface stable against accelerated erosion until permanent ground stabilization is achieved. limits. Post signage on the washout itself to identify this location.
PORTABLE TOILETS 9. Remove leavings from the washout when at approximately 75% capacity to limit
GROUND STABILIZATION SPECIFICATION 1. Install portable toilets on level ground, at least 50 feet away from storm drains, overflow events. Replace the tarp, sand bags or other temporary structural
Stabilize the ground sufficiently so that rain will not dislodge the soil. Use one of the streams or wetlands unless there is no alternative reasonablyavailable. If 50 foot
techniques in the table below: components when no longer functional. When utilizing alternative or proprietary o
q offset is not attainable, provide relocation of portable toilet behind silt fence or place products, follow manufacturer's instructions. LD
Temporary Stabilization Permanent Stabilization on a gravel pad and surround with sand bags.
10. At the completion of the concrete work, remove remaining leavings and dispose of
• Temporary grass seed covered with straw or • Permanent grass seed covered with straw or 2. Provide staking or anchoring of portable toilets during periods of high winds or in high in an approved disposal facility. Fill pit, if applicable, and stabilize any disturbance coother mulches and tackifiers other mulches and tackifiers foot traffic areas. w Z
• Hydroseeding • Geotextile fabrics such as permanent soil caused by removal of washout. UJ
• Rolled erosion control products with or reinforcement matting 3. Monitor portable toilets for leaking and properly dispose of any leaked material. o
without temporary grass seed • Hydroseeding Utilize a licensed sanitary waste hauler to remove leaking portable toilets and replace CY
• Appropriately applied straw or other mulch • Shrubs or other permanent plantings covered with properly operating unit. V) C)
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• Plastic sheeting with mulch HERBICIDES, PESTICIDES AND RODENTICIDES o 0
• Uniform and evenly distributed ground cover 1. Store and apply herbicides, pesticides and rodenticides in accordance with label Z
sufficient to restrain erosion EARTHEN STOCKPILE MANAGEMENT restrictions.
• Structural methods such as concrete, asphalt or 1. Show stockpile locations on plans. Locate earthen-material stockpile areas at least
retaining walls 2. Store herbicides, pesticides and rodenticides in their original containers with the Z c�
50 feet away from storm drain inlets, sediment basins, perimeter sediment controls w Z Z
• Rolled erosion control products with grass seed label, which lists directions for use, ingredients and first aid steps in case of � O J
and surface waters unless it can be shown no other alternatives are reasonably accidental poisoning. N o ~
available. J N Z
3. Do not store herbicides, pesticides and rodenticides in areas where flooding is w =
2. Protect stockpile with silt fence installed along toe of slope with a minimum offset of Y > J
possible or where they may spill or leak into wells, stormwater drains, ground water 0 w m N
POLYACRYLAMIDES (PAMS) AND FLOCCULANTS five feet from the toe of stockpile. 00 Q J
or surface water. If a spill occurs, clean area immediately. � � Q
1. Select flocculants that are appropriate for the soils being exposed during 3. Provide stable stone access point when feasible. cn IIx
4. Do not stockpile these materials onsite. I Q ,.,_,
construction, selecting from the NC DWR List of Approved PAMS/Flocculants. 4. Stabilize stockpile within the timeframes provided on this sheet and in accordance v z Q
2. Apply flocculants at or before the inlets to Erosion and Sediment Control Measures. with the approved plan and any additional requirements. Soil stabilization is defined 3: Q o
3. Apply flocculants at the concentrations specified in the NC DWR List of Approved as vegetative, physical or chemical coverage techniques that will restrain accelerated Q Q IX 0
PAMS/Flocculants and in accordance with the manufacturers instructions. erosion on disturbed soils for temporary or permanent control needs. HAZARDOUS AND TOXIC WASTE Q
Z J Z
4. Provide ondin area for containment of treated Stormwater before discharging 1. Create designated hazardous waste collection areas on-site. w N
offsite.
p g g g 2. Place hazardous waste containers under cover or in secondary containment. of of
o
5. Store flocculants in leak-proof containers that are kept under storm-resistant cover 3. Do not store hazardous chemicals, drums or bagged materials directly on the ground. DRAWN CHECKED : JELRHEA
or surrounded by secondary containment structures. APPROVED BY: LRH
DATE: 06/27/2023
SCALE: AS SHOWN
EFFECTIVE : 04/O l / 19 FILE NUMBER: 12549CG
N 0 1 R D T BILIZ TI N ND M TERI L H NDLINSHEET:

PART III PART III PART III
SELF-INSPECTION, RECORDKEEPING AND REPORTING SELF-INSPECTION, RECORDKEEPING AND REPORTING SELF-INSPECTION, RECORDKEEPING AND REPORTING
E'
SECTION A: SELF-INSPECTION SECTION B: RECORDKEEPING SECTION C: REPORTING
Self-inspections are required during normal business hours in accordance with the table 1. E&SC Plan Documentation 1. Occurrences that Must be Reported
below. When adverse weather or site conditions would cause the safety of the inspection
The approved E&SC plan as well as any approved deviation shall be kept on the site. The Permittees shall report the following occurrences: �
personnel to be in jeopardy, the inspection may be delayed until the next business day on approved E&SC plan must be kept up-to-date throughout the coverage under this permit. (a) Visible sediment deposition in a stream or wetland.
which It Is safe to perform the Inspection. In addition, when a storm event of equal to or The following items pertaining to the E&SC plan shall be kept on site and available for w
greater than 1.0 inch occurs outside of normal business hours, the self-inspection shall be inspection at all times during normal business hours.
performed upon the commencement of the next business day. Any time when inspections (b) Oil spills if:
x
were delayed shall be noted in the Inspection Record. • They are 25 gallons or more,
Item to Document Documentation Requirements • They are less than 25 gallons but cannot be cleaned up within 24 hours,
Frequency (a) Each E&SC measure has been installed Initial and date each E&SC measure on a copy . They cause sheen on surface waters (regardless of volume), or h
Inspect (during normal Inspection records must include: and does not significantly deviate from the of the approved E&SC plan or complete, date
LO
business hours) locations, dimensions and relative elevations and sign an inspection report that lists each • They are within 100 feet of surface waters (regardless of volume). • z
(1) Rain gauge Daily Daily rainfall amounts. V P
shown on the approved E&SC plan. E&SC measure shown on the approved E&SC
maintained in If no daily rain gauge observations are made during weekend or 0
plan. This documentation is required upon the o5
good working holiday periods, and no individual-day rainfall information is (c) Releases of hazardous substances in excess of reportable quantities under Section 311
order available, record the cumulative rain measurement for those un- initial installation of the E&SC measures or if aZ
attended days (and this will determine if a site inspection is the E&SC measures are modified after initial of the Clean Water Act (Ref: 40 CFR 110.3 and 40 CFR 117.3) or Section 102 of CERCLA ca o
needed). Days on which no rainfall occurred shall be recorded as installation. (Ref: 40 CFR 302.4) or G.S. 143-215.85.
"zero." The permittee may use another rain-monitoring device p o
approved by the Division. (b) A phase of grading has been completed. Initial and date a copy of the approved E&SC m
(2) E&SC At least once per 1. Identification of the measures inspected, plan or complete, date and sign an inspection (d) Anticipated bypasses and unanticipated bypasses.
Measures 7 calendar days 2. Date and time of the inspection, report to indicate completion of the
and within 24 3. Name of the person performing the inspection, construction phase.
hours of a rain 4. Indication of whether the measures were operating (e) Noncompliance with the conditions of this permit that may endanger health or the
event > 1.0 inch in properly, (c) Ground cover is located and installed Initial and date a copy of the approved E&SC
environment.
24 hours 5. Description of maintenance needs for the measure, in accordance with the approved E&SC plan or complete, date and sign an inspection ,�a�""""R�0,,,��'
6. Description, evidence, and date of corrective actions taken. plan. report to indicate compliance with approved ����'�• SS
3 Stormwater At least once per 1. Identification of the discharge outfalls inspected, F J� 'y
( ) p g p ground cover specifications. 2 Reporting Timeframes and Other Requirements =Z 'a� 9�'�
discharge 7 calendar days 2. Date and time of the inspection, s SEAL
outfalls (SDOs) and within 24 3. Name of the person performing the inspection, (d) The maintenance and repair Complete, date and sign an inspection report. After a permittee becomes aware of an occurrence that must be reported he shall contact 056748 t s i _
hours of a rain 4. Evidence of indicators of stormwater pollution such as oil requirements for all E&SC measures
the appropriate Division regional office within the timeframes and in accordance with the 9�••• �INE �,.�'
event > 1.0 inch in sheen, floating or suspended solids or discoloration, have been performed. other requirements listed below. Occurrences outside normal business hours may also be ,,qR�aNP���•```
24 hours 5. Indication of visible sediment leaving the site, q y
6. Description, evidence, and date of corrective actions taken. (e) Corrective actions have been taken Initial and date a copy of the approved E&SC reported to the Department's Environmental Emergency Center personnel at (800)
(4) Perimeter of At least once per If visible sedimentation is found outside site limits, then a record to E&SC measures. plan or complete, date and sign an inspection 858-0368. © 06/2023
site 7 calendar days of the following shall be made: report to indicate the Completion of the o 0
CN
and within 24 1. Actions taken to clean up or stabilize the sediment that has left corrective action. o
hours of a rain the site limits, Occurrence Reporting Timeframes (After Discovery) and Other Requirements
event > 1.0 inch in 2. Description, evidence, and date of corrective actions taken, and (a) Visible sediment • Within 24 hours, an oral or electronic notification. w J
24 hours 3. An explanation as to the actions taken to control future 2. Additional Documentation to be Kept on Site
releases. p deposition in a • Within 7 calendar days, a report that contains a description of the
(5) Streams or At least once per If the stream or wetland has increased visible sedimentation or a In addition to the E&SC plan documents above, the following items shall be kept on the stream or wetland sediment and actions taken to address the cause of the deposition.
wetlands onsite 7 calendar days stream has visible increased turbidity from the construction site and available for inspectors at all times during normal business hours, unless the Division staff may waive the requirement for a written report on a
or offsite and within 24 activity, then a record of the following shall be made: Division provides a site-specific exemption based on unique site conditions that make case-by-case basis.
(where hours of a rain 1. Description, evidence and date of corrective actions taken, and this requirement not practical: • If the stream is named on the NC 303(d) list as impaired for sediment-
accessible) event > 1.0 inch in 2. Records of the required reports to the appropriate Division related causes, the permittee may be required to perform additional
24 hours Regional Office per Part III, Section C, Item (2)(a) of this permit.
(6) Ground After each phase 1. The phase of grading (installation of perimeter E&SC (a) This General Permit as well as the Certificate of Coverage, after it is received. monitoring, inspections or apply more stringent practices if staff o
stabilization of grading measures, clearing and grubbing, installation of storm determine that additional requirements are needed to assure compliance
bi
measures drainage facilities, completion of all land-disturbing (b) Records of inspections made during the previous twelve months. The permittee shall with the federal or state impaired-waters conditions. of
activity, construction or redevelopment, permanent (b) Oil spills and • Within 24 hours an oral or electronic notification. The notification
record the required observations on the Inspection Record Form provided by the :2 co
ground cover). release of shall include information about the date, time, nature, volume and w Z
Division or a similar inspection form that includes all the required elements. Use of w
2. Documentation that the required ground stabilization p q hazardous location of the spill or release. o 0
measures have been provided within the required electronically-available records in lieu of the required paper copies will be allowed if substances per Item `j_ 0
timeframe or an assurance that they will be provided as shown to provide equal access and utility as the hard-copy records. o 0
soon as possible. 1(b)-(c) above � Z
d(c) Anticipate • A report at least ten days before the date of the bypass if possible.
3. Documentation to be Retained for Three Years � o o
bypasses [40 CFR The report shall include an evaluation of the anticipated quality and Z
NOTE: The rain inspection resets the required 7 calendar day inspection requirement. All data used to complete the e-NOI and all inspection records shall be maintained for a period 122.41(m)(3)] effect of the bypass.
of three years after project completion and made available upon request. [40 CFR 122.41]
(d) Unanticipated • Within 24 hours, an oral or electronic notification. �
bypasses [40 CFR . Within 7 calendar days, a report that includes an evaluation of the w z
PART II, SECTION G, ITEM 4 122.41(m)(3)] quality and effect of the bypass. � 0 o
� ) _ IX
(e) Noncompliance • Within 24 hours an oral or electronic notification. N 0 0
DRAW DOWN OF SEDIMENT BASINS FOR MAINTENANCE OR CLOSE OUT with the conditions Within 7 calendar days, areport that contains a description of the Y UJ j z w
W U �
of this permit that noncompliance, and its causes; the period of noncompliance, 00 0
Sediment basins and traps that receive runoff from drainage areas of one acre or more shall use outlet structures that withdraw water from the surface when these devices need to be drawn down may endanger including exact dates and times, and if the noncompliance has not 0 z
for maintenance or close out unless this is infeasible. The circumstances in which it is not feasible to withdraw water from the surface shall be rare (for example, times with extended cold weather). health or the been corrected, the anticipated time noncompliance is expected to I 0 a
Non-surface withdrawals from sediment basins shall be allowed only when all of the following criteria have been met: environment[40 continue; and steps taken or planned to reduce, eliminate, and Q z z
CFR 122.41(I)(7)] prevent reoccurrence of the noncompliance. [40 CFR 122.41(I)(6). w� I FL
(a) The E&SC plan authority has been provided with documentation of the non-surface withdrawal and the specific time periods or conditions in which it will occur. The non-surface withdrawal Division staff may waive the requirement for a written report on a Z J w w
case-by-case basis. 0 �, N Y
shall not commence until the E&SC plan authority has approved these items, N
o a
(b) The non-surface withdrawal has been reported as an anticipated bypass in accordance with Part III, Section C, Item (2)(c) and (d) of this permit, a- o
(c) Dewatering discharges are treated with controls to minimize discharges of pollutants from stormwater that is removed from the sediment basin. Examples of appropriate controls include DRAWN BY: JEH/REA
CHECKED BY: LRH
properly sited, designed and maintained dewatering tanks, weir tanks, and filtration systems, APPROVED BY: LRH
(d) Vegetated, upland areas of the sites or a properly designed stone pad is used to the extent feasible at the outlet of the d DATE: 06/27/2023ewatering treatment devices described in Item (c) above, SCALE: I AS SHOWN
(e) Velocity dissipation devices such as check dams, sediment traps, and riprap are provided at the discharge points of all dewatering devices, and FILE NUMBER: 12549CG
SHEET:
(f) Sediment removed from the dewatering treatment devices described in Item (c) above is disposed of in a manner that does not cause deposition of sediment into waters of the United States. CGO04

MARY SUE H. N/F WETLAND AREAS DERIVED FROM / SITE INFORMATION
\ LIVINGSTON GRAHAM T. MOORE Jr. EVANS CEMETERY (� E-
/F
CHARLES LIVINGSTON ELIZABETH B. MOORE
SURVEY BY ECS SOUTHEAST, LLP
N LOCATION: N 34.9630137966
\ ON AUGUST 21, 2023 / / ^ �
\ CHADWICK W. HALL CUMBERLAND COUNTY W 78.8394040572
DB 9317 PG 234 / \ � F-+
JENNIFER H. HALL PB 122 PG 12 CLERK OF SUPERIOR COURT /
\ 50' WETLAND BUFFER /
\ WILLIAM C. TARR II PIN# 0444-83-7127 DB 92 PG 191 P' LIMIT OF DISTURBANCE: 27.63 ACRES
DB 14E PG 123 PIN# 0444-71-9142 POSSIBLE / / \ . 71
TREE REMOVAL REQUIRED: 27.63 ACRES ��
\ PIN# 0444-71-2099 CEMETERY O
\ FENCE 90� 100E / \ CONTRACTOR: SOLES AUTOMOTIVE TOWING INC.
T \ ENCROACHMENT / W
N: 441854.13'
�SR
ELEV: 77.85
2 \ P �g1$� / /NP�R� / • • E: 2048524.04' \ x
Cumberland County, North Carolina (NC051]
#2 (POINT OF — 4� TR // + • all "
•
s
\��ly PP LOCALIZATION) . • • / / �j//s •'•+• �'F,� WATERPLANTTMENT \ Map Unit Symbol Map Unit Name Acres in A01 Percent of A+0�1
\ O N: 441293.60'
Nl� of E: 2047965.38' i �� �
/ Dogue fine sandy loam,
ELEV: 85.80 (TBM) P ��� �� \ LD
DgA 5.58 19.45%
\, CSF. 0.9999969283 P 0 to 2 percent slopes
WETLAND AREAS DERIVED FROM 0
i SURVEY BY ECS SOUTHEAST, LLP o
��� ON AUGUST 21, 2023 �,� Tarboro loamy sand, 0 a 5
N F _ i A / 6 � TaB to 6 percent slopes 21.17 73.78°/0 Ln U
/ \ o a z
88
ERVIN ALSTON Jr. � '� � �� • .
ETALS / $`�� �80. 400, t o
DB 2578 PG 726 d POSSIBLE � � � _ —8� • O
PIN# 0444-70-1964 CEMETERY `�✓ d �� .�00, Wickham fine sandy C ex
FENCE 3 � � A � �
WmIB loam, 1 to 6 percent 1.94 6.77% m
/ ERVIN ALSTON Jr. ETALS �� ENCROACHMENT V� �w �� + slopes, rarely flooded
DB 2578 PG 726 8�
Q PIN# 0444-70 7938 \ /S2R Totals for Area of Interest 28.69 100.00%
00
LO
00 o � � 85 � , ` �� Wm B
A _ -4 A i
elf -7 POSSIBLE
o i CEMETERY �� �������LO
/ FENCE z84
g A Q (� ,.-ENCROACHMENT / �� �
z �8� \ / 89 �i 8
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PG 0629
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� OR FORMALLY -0075� —85 0454-02 © 06/2023
NOW \ � v � PIN#
CITY OF FAYETTEVILLE — — -86 _ ' �0 8 w N o
g2� PIN: 0454-02-0075 v 84- " a N
/ �9 D.B. 2433 PG. 0629 85 8 N
�� PB 41 PG 40 86 �� o 0
+ • /,p,� $6' EXISTING DIRT 90 + - 244.73 ACRES c� z z
�8 r ROAD w-89- / PP " � Lj
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8
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• --86
+
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88 88 �8)\ I \ / —\8S,
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• WOODED / MARKED GRAVESITE �9 Ta B 8 �� � TRAINING YARD 84�
AREA OUTSIDE OF - r s� $6 / _ 8
N/F R,� /�,c CEMETERY BOUNDARY - —88 — / 8s / 3 z
CITY OF _ A too s o
+ FAYETTEVILLE 86 i L
• DB 2433, PG 0629 a HALL CEMETERY S� 85_ 80. of
0 • PB 41 PG 40 N/F v 86 8$
• • PIN / / TRACY L HALL JR. $� — - 4- 86- A
•+ 0454-02-0075 �'� DB 2433, PG-629 �z g5 —813 � 85 ,8 w z
PIN# 0444 70 9454 ii, _ / _ —83 \ .3 uj
• MARKED GRAVESITE OUTSIDE �" �g4 �� 82� —84 84 84� 0 0
EXISTING CEMETERY ��� ��� _ _ �� 85�� �8 0
• LOCATED INSIDE OF CEMETERY BOUNDARY I / _ \ \ o CY
BOUNDARY �► � ) �� / v \ ��� �o>> 86— F —865 �8g CQ o
N/F 8 / / / \ \ `��\ \ 86 — — \ 1 \ cn z
• LIQUID ENVIRONMENTAL -
•
\ SOLUTIONS OF GEORGIA, LLC �l �8 �� �— 85-- 86_ — -86- o 0
• — DB 9633 PG 87 � l �. �83 \ — 84- — -8s v86�
• A PB 114 PG 49 `� z81— — v
• \ \ PIN# 0444-80-2302 C -84 / �82 — — — _ — _ — 84`
\ 83— \ 1
85-
84— / Z
•. a°i.� \ 8 �� Ek�sTiNG A N/F — — — W
v _ M `�
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\ P 9RF Ry sF �\ \ PIN P 04 1 PG 40075 EXISTING CRE J Go`
\ 86
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+ • Z J H
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of
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DRAWN BY: JEH/REA
CHECKED BY: LRH
APPROVED BY: LRH
DATE: 06/27/2023
100 50 25 0 100 SCALE: 1" = 100'
REFERENCES FILE NUMBER: 12549CG
1"=100'
CONSTRUCTION SEQUENCE, LEGEND, AND NOTES..................CGO02 SHEET:
CG100

• N/F
\ MARY SUE H. N/F /
"EVANS CEMETERY"
LIVINGSTON GRAHAM T. MOORE Jr.
\ CHARLES LIVINGSTON ELIZABETH B. MOORE N/F
\ CHADWICK W. HALL DB 9317 PG 234 CUMBERLAND COUNTY / \
PB 122 PG 12 CLERK OF SUPERIOR COURT /
\ JENNIFER H. HALL /
WILLIAM C. TARR II PIN# 0444-83-7127 D13 92 PG 191 2 P / Z
DB PIN
14E PG 123 # POSSIBLE O \
\ PIN# 0444-71-2099 CEMETERY
FENCE
C'- \ ENCROACHMENT / W
N: 441854.13'
PP E: 2048524.04' \
\ 8 60, \ #2 (POINT OF ARP / ELEV: 77.85
LOCALIZATION)
441293 60 P / / WATER TREATMENT
DPP N \
01 E: 2047965.38' /
ELEV: 85.80 (TBM) P j / IACSF: 0.9999969283 / PLID
/ Z
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OEx
STREAM DERIVED FROM a 5
N/F SOUTHEAST, LLP ON
Ln V
ERVIN ALSTON Jr. \ '� Z AUGUST 21, 2023 o
ETALS / P S o
DB 2578 PG 726 POSSIBLE R'� O
cu
PIN# 0444-70-1964 CEMETERY d p a
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N/F a ��
/ ERVIN ALSTON Jr. ETALS ENCROACHMENT
DB 2578 PG 726
/ Q < PIN# 0444-70-7938
10 PP
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/R FENCE SS_
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CITY OF FAYETTEVILLE DB 2433, PG 0629
PIN: 0454-02-0075 P PB 41 PG 40 0.3/02/2024
D.B. 2433 PG. 0629 PIN# © 06/2023
PB 41, PG 40 0454-02-0075
+/- 244.73 ACRES
a N
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Q /'QF EXISTING DIRT /
a ROAD PP w � �
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/ F MARKED GRAVESITE II TRAINING YARD
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FAYETTEVILLE RF "HALL CEMETERY" bi
DB 2433, PG 0629 N/F of
PB 41 PG 40 / TRACY L HALL JR. II
PIN# /�S',� DB 2433, PG 629 F-
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EXISTING CEMETERY MARKED GRAVESITE OUTSIDE II o 0
LOCATED INSIDE OF CEMETERY BOUNDARY o Ld
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BOUNDARY N/F II V) z
LIQUID ENVIRONMENTAL II
\ SOLUTIONS OF GEORGIA, LLC z
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\ \ PB 114 PG 49 I I
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CHECKED BY: LRH
I APPROVED BY: LRH
d
° DATE: 06/27/2023
100 50 25 0 100 SCALE: 1" = 100'
REFERENCES FILE NUMBER: 12549CG
1"=100'
CONSTRUCTION SEQUENCE, LEGEND, AND NOTES..................CGO02 SHEET:
CG101

N/F DRAINAGE AREAS
• �
i
\ MARY SUE H. "EVANS CEMETERY" / C DRAINAGE AREA No. � ^ E-�
LIVINGSTON / I
\ CHARLES LIVINGSTON N/F / �/ ' . ® W
\ \ CHADWICK W. HALL CUM OF SUPERIOR
D COUNTY / cl�- \ 1 AREA (ACRES)
CLERK OF SUPERIOR COURT
JENNIFER H. HALL
DB 92 PG 191 6. P' � Z
\ WILLIAM C. TARR II PIN# 0444-71-9142 / \ DRAINAGE AREA BOUNDARY
DB 14E PG 123 POSSIBLE
. \ PIN# 0444-71-2099 CEMETERY � �• • \
O
\
FENCE I' � mo s •�/ W
�4C \ ENCROACHMENT Ste/
(S \ / N: 441854.13' x
\ \'S'2 P o PGA Nj • • • E: 2048524.04'
��8 \ #2 (POINT OF 4�j�// �•a +" ELEV: 77.85
V 0 LOCALIZATION) + • • i �j/i . •' \
N: 441293.60'
\ of E: 2047965.38'
ELEV: 85.80 (TBMIA
)
CSF: 0.9999969283 1, AREA 2 DRAINAGE POINT OF ANALYSISLO
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01
AREA 1 DRAINAGE POINT OF ANALYSIS
TIME OF -84-
� © 06/2023
34.9608807470'N, -78.841 1 1 07343•W - -85 �
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• � 88 � �� � � � 8�� � � � �- � ��BS, � � � 8
8
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PRE-CONSTRUCTION DRAINAGE SUMMARY a- 0
DRAWN BY: JEH/REA
Drainage Area Size (Acres)
Runoff Coefficient Time of Concentration Length of Travel (ft) Height of Most Remote Point Average Slope Percent CHECKED BY: LRH
(C) (Unitless) (Tc) (Minutes) Above Outlet(ft) ft ft Impervious APPROVED BY: LRH
1 6.57 0.10 10.20 1068.1 9.83 0.9% 0.00% 100 50 25 0 100 DATE: 06/27/2023
2 12.19 0.10 6.45 838.6 15.63 1.9% 0.00°% SCALE: 1" = 100'
3 2.14 0.10 5.59 588.0 7.84 1.3% 0.00%
REFERENCES FILE NUMBER: 12549CG
1"=100'
4 7.18 0.10 6.28 761.8 12.59 1.7% 0.00% CONSTRUCTION SEQUENCE, LEGEND, AND NOTES..................CGO02 SHEET:
CG102

N/F Line and Curve Table - Outer LOD Line and Curve Table - Inner LOD
S MARY UE H. N/F
LIVIN
ARY ON GRAHAM T. MOORE Jr. EVANS CEMETERY , Line #/Curve # Length Bearing/Delta Radius Line #/Curve # Length Bearing/Delta Radius
CHARLES LIVINGSTON ELIZABETH B. MOORE N/F
CHADWICK W. HALL DB 9317 PG 234 CUMBERLAND COUNTY / L1 14.81 S47' 41' 07.81"E L50 47.74 N47' 41' 08.19"W
JENNIFER H. HALL PB 122 PG 12 CLERK OF SUPERIOR COURT \ .
WILLIAM C. TARR II PIN# 0444-83-7127 DB 92 PG 191 P L2 246.86 N40' 29' 04.90"E L51 141.59 S38' 51' 31.39"W
/ PIN# 0444-71-9142 --I- z
DB 14E PG 123 POSSIBLE < �PIN# 0444-71-2099 CEMETERY L3 85.27 S52' 14' 37.64"E L52 117.87 S77' 54' 11.43"WFENCE
\ �
ENCROACHMENT 150) / L4 86.48 N46' 41' 06.53"E L53 24.31 S68' 37' 22.89"W
L5 63.87 S76' 34' 07.01"E C4 51.93 70.84 42.00
P
1
\� (S� \ '6�' Rp. / N: 441854.13'
76 L6 63.63 S85' 59' 09.90"E L54 269.87 N90' 00' 00.00"W x
\2� P �ag1 �RPG� \A / •`PP E:ELEV:852 .04
6�, \ #2 (POINT OF L7 99.39 N84' 18' 43.59"E L55 74.14 S77' 59' 08.65"W
p LOCALIZATION) WATER TREATMENT L8 35.40 N73' S8' 45.01"E L56 274.57 N35' 44' 32.94"W
0PP N: 441293.60' P PLANT
\'O 01 E: 2047965.38' L49 L9 16.25 S44' 30' 55.95"E L57 33.14 N16' 34' 35.78"E
o� L1 L4 `O
ELEV: 85.80 (TBM) P r
CSF: 0.9999969283 L47 S P L10 63.13 S84' 41' 25.11"E L58 59.95 N24' S1' 04.83"E
L50 < F L11 267.86 S75' 49' 04.66"E L59 51.87 N13' 17' 22.70"E m z
L9 �5� �S? STREAM DERIVED FROM L12 123.41 S44' 39' 44.80"E L60 32.51 N61' 58' 34.67"W O
L53 1> SURVEY BY ECS N R 5
SOUTHEAST, LLP ON L13 97.07 S7' 19' 02.77"E L61 96.25 N30' 23' 28.24"E = o
9 AUGUST 21, 2023 g Z
\ \ ca
P L14 8.57 S72' 40' 57.30"W L62 100.59 N28' 11' 26.60"E
/ d POSSIBLE /R'� v 10 L63 43.36 N22' 47' 26.32"E p
CEMETERY >d OUTER LOD L15 13.30 N79' 06 49.17 W O o
> FENCE / REPRESENTS OUTER LIMIT OF TREE L16 84.16 N71' 27' 50.91"W L64 48.96 N36' 46' 03.92"E
S
ERVIN ALSTON Jr. ETALS PHASES 1 & 2. SEE SHEETS CG200 m
N/F A ENCROACHMENT ��, RF 87 CLEARING DISTURBANCE FOR L17 57.98 S14' 42' 19.03"W L65 92.08 N24' 45' 17.81"W
/ }
DB 2578 PG 726 ` � AND CC201 FOR DETAILS. 11
/ a < PIN# 0444-70-7938 > o �S L18 35.45 S12' 49' 33.90"W L66 78.47 N14' 35' 27.29"E
pp
/ e �Q v INNER LOD C1 39.23 86.37 26.02 L67 206.04 N48' 00' 18.95"E
c v REPRESENTS INNER LIMIT OF TREE L19 44.10 S16' 34' 35.78"W L68 73.67 N40' 43' 11.15"W
d. A �43 POSSIBLE CLEARING/DISTURBANCE FOR i
CEMETERY PHASE 1. SEE SHEET CG200 FOR L20 59.22 S24' 51' 04.83"W L69 118.54 N42' 44' 25.33"E ``�`��� r� ... �s, �
/ A FENCE
o a Q �.�`� l ENCROACHMENT DETAILS. PP L21 51.42 S13' 17' 22.70"W L70 56.77 S73' S9' 28.05"E �2 a� F SS/ N9 .`
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SEAL z
Q M /RF �� i0 L22 46.88 S22' 47' 26.32"W L71 65.55 N45' 28' 47.92"E ? 56 48
12
Z N F L23 48.36 S29 24 05.14W L72 60.17 S42 18 32.08E =� F Q''�`��' ' " ' ' "w NOW OR FORMALLY / CITY OF L24 53.40 S27' 06' 40.62"W L73 124.40 N47' 41' 27.92"E ��'�i,�'4� �R�NQ'���`��
FAYETTEVILLE �i��Ni�aa�NN���
CITY OF FAYETTEVILLE DB 2433, PG 0629
a q"'� PIN: 0454-02-0075 PB 41 PG 40 L25 70.91 S30' 23' 28.24"W L74 248.14 S41' 46' 54.94"E 03/D�/20�4
82 0� D.B. 2433 PG. 0629 PIN# L26 96.05 S61' S8' S0.39"E L75 157.72 S47' S9' 11.70"E © 06/2023
V PB 41, PG 40 �h L17 0454-02-0075 N N
1-1 +/- 244.73 ACRES ��0 C1 18 L15 L14 L27 40.94 S61' 57' 34.26"E L76 215.75 N29' 16' 58.80"E Q CN N
J 0 N o
as L28 51.38 S21' 39' 23.08"E L77 83.46 S82' 36' 13.72"E o 0
EXISTING DIRT L29 120.92 S27' 52' 27.79"W L78 142.15 N73' 07' 16.95"E
d L80 ROAD _ _ 6 PP w
L30 117.81 S5' 13' 04.18"E L79 36.39 S29' 44' 08.01"E
L31 229.43 S47' 41' 27.92"W L80 75.00 S60' 15' 51.99"W
L32 361.16 S47' 41' 27.92"W L81 127.79 S29' 44' 08.01"E
/ �bc L33 551.24 N42' 17' 07.01"W L82 99.74 S68' 37' 44.74"W
d II \\ L64
MARKED GRAVESITE \ _ TRAINING YARD L34 197.97 S29' 16' 58.80"W L83 46.91 S4' 52' 12.37"E
N/F / F / / OUTSIDE OF L35 95.03 N82' 36' 13.72"W L84 258.56 S20' 34' 31.86"W z
< 'QF 4A,c CEMETERY BOUNDARY
o
CITY OF
co
FAYETTEVILLE "HALL CEMETERY" 1 L36 111.60 S73' 21' 16.23"W L85 195.61 S86' 34' 26.97"W w
DB 2433, PG 0629 d N/F II L37 29.07 S72' 01' 33.23"W L86 270.95 ST 29' 26.69"E
PB 41 G 40 / / TRACY L HALL JR. ro OD
# 'S'F cn
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L38 33.22 N42' 10' 11.26"W L88 100.98 SO' 00' 02.48"E
EXISTING CEMETERY MARKED GRAVESITE OUTSIDE j L67 0 0
OF CEMETERY BOUNDARY I I C3 130.07 18.52 402.46 C5 48.77 47.77 58.50 0 0
LOCATED INSIDE w w
=) 0
BOUNDARY N/F L39 91.14 N22' 52' 38.17"W L89 31.44 S42' 18' 51.81"W Z
a LIQUID ENVIRONMENTAL L73 N 1 -
\ SOLUTIONS OF GEORGIA, LLC I J L40 108.27 N18' 56' 21.90"W L90 13.12 S47' 46' 08.05"E
. \ DB 9633 PG 87
1 d
PB 114 PG 49 J 6 � L41 273.06 S76' 28' 36.45"E Z
\ a II O �-
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\ � L42 276.66 N19' 18' 26.97"E �
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\ \ _ /M4 TZ7 44F' � CITY OF L44 231.34 NT 29' 33.03"W = Z
\ C NT FAYETTEVILLE Q Q
\ I L 2 / \ )\ S�N� CRY DB 29 2433, PG
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P 9 L45 152.53 S87' 27' 35.08"W W m Q
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DRAWN BY: JEH/REA
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° DATE: 06/27/2023
100 50 25 0 100 SCALE: 1 = 100'
REFERENCES FILE NUMBER: 12549CG
1"=100'
CONSTRUCTION SEQUENCE, LEGEND, AND NOTES..................00002 SHEET:
CG103

50' UNDISTURBED BUFFERS TO BE i
MAINTAINED ON WETLANDS AND STREAMS. c SITE INFORMATION
\ CONTRACTOR MAY CONTACT BOOTH &
\ 13' WIDTH X 50' LENGTH ASSOCIATES IF WETLAND STAKING IS NEEDED. LOCATION: N 34.9630137966 ^�
\ \ CONSTRUCTION ENTRANCE \ y GIST W 78.8394040572 F-1
L ` P' PHASE 1 LIMIT OF DISTURBANCE. 9.02 ACRES
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V '�'/�,� \ • • / /! •• q TO STOP AT THE \
EDGE OF 100-YEAR 1. OBTAIN REQUIRED PERMITS PRIOR TO THE COMMENCEMENT OF
\ \ 0P\ FLOODPLAIN CONSTRUCTION. OWNERS ENGINEER TO CONTACT NCDEQ
FAYETTEVILLE REGIONAL OFFICE AT 910-4343-3300 TO INVITE LO
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• \\ T �/ ioo� PRIOR TO PROJECT ACTIVATION. �0 Z
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\�A�ST y �� A / \ - BASIN #2 (SEDIMENT). 2. UNDERGROUND UTILITIES NOT SHOWN ON THIS DRAWING MAY 0 0
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000 o AREA DETAILS. \ ;Ca Z
\ 88 0 0 00 0 0 \� - 3. INSTALL STORM WATER INSPECTION BOX WITH RAIN GAUGE,
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co \ \ �� 8 INSPECTION BOX.
y \ 193' LENGTH EARTHEN BERM 2'
__86 84 HIGH, 3: 1 SIDE SLOPE, 2' TOP \� ' 4. INSTALL CONSTRUCTION ENTRANCE PRIOR TO ANY LAND `����`���,
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w 0 mot' 9 PHASE 1: ONLY SITE PERIMETER TO \ 83- / CITY OF 6. CLEAR AND GRUB ONLY IN AREAS WHERE EROSION CONTROL ' G/Qq••••IN••tiP�O��```
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/ 85 DB 2433, PG 0629 REMOVED AND STORED AT A NCDEQ APPROVED LOCATION. 0s/02/202
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� � � � � � � � 0454�02#0075 WITH A CONTROLLED BURN. � © os/2o23
TS \ NOW OR FORMALLY -85 ��
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\ g2 PIN: 0454-02-0075 �� SEDIMENT BASIN DRAINAGE CHANNELS AND BERM AS SHOWN a C,
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DATE: 06/27/2023
100 50 25 0 100 REFERENCES SCALE: 1" = 100'
1"=100' VICINITY MAP...........................................................................00001 FILE NUMBER: 12549CG
CONSTRUCTION SEQUENCE, LEGEND, AND NOTES..................CGO02 SHEET:
CG200

50' UNDISTURBED BUFFERS TO BE i
MAINTAINED ON WETLANDS AND STREAMS. c SITE INFORMATION
\ CONTRACTOR MAY CONTACT BOOTH &
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\ y/ -89 g J FOR TREE CLEARING TO FUTURE PERMIT COVERAGE FOR =�'•a SEAL -
a
CID / o \ \ SOLAR UTILITY STATION. AT THIS TIME THE NOTICE OF z
�, TERMINATION OF THE NPDES PERMIT IS TO BE SUBMITTED TO i : 056748 r �:
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• - T V - NOW OR FORMALLY 5 \ \ �A © 06/2023
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25 WOODED BUFFER TO \
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• / S6• \ �� _ 83� CHANNEL #4B.
• \ ti/gT FqS 1 82 — -SEE DETAIL ON SHEET CG500. -- 85-
AllF 0 FM�� \ ✓ �8 \8 \ 84 85-
• _ \ Cq�� T - BASIN #3 (SKIMMER).
Sabi 0iy� Sqk\ p SEE SHEETS 8^ _ 84_ \ Z
• \ �Tq CG400-CG402 FOR — W
• � A00t�� ioo►\ RYS\ DETAILS. 8 / ► BASIN #4 (SKIMMER). ` m N
Ld
\ . �F11' \ p �/1 ���� ~SEE SHEETS N O a
e oo\ p�TF
'9<� \ P GO t�• �`p _ CG400-CG402 FORS\ .mot L� W
A � dD DETAILS. \�',\ / s'\ ���� �oo►�' Oaf dootr U W
t e oot d� z
\ 86 120' LENGTH DRAINAGE ��` 199' LENGTH DRAINAGE \ \ iG _ Z
CHANNEL #313. �aot� CHANNEL #4A. —
� Q
SEE DETAIL ON SHEET CG500. �--i SEE DETAIL ON SHEET CG500. / Q W
AGO
-d oot a oot f U Q U
• LEGEND uj
W•
• • a
• • • • • • •• •• ••• • • all .
• • • • • • � a Q Q H
• • Z J F_
• O
U N Z_
u
TREE CLEARING AREA 0
0
DRAWN BY: JEH/REA
CHECKED BY: LRH
APPROVED BY: LRH
DATE: 06/27/2023
100 50 25 a 100 REFERENCES SCALE: 1" = 100'
1"=100' VICINITY MAP...........................................................................00001 FILE NUMBER: 12549CG
CONSTRUCTION SEQUENCE, LEGEND, AND NOTES..................CGO02 SHEET:
CG201

N/F DRAINAGE AREAS
• �
i
\ MARY SUE H. "EVANS CEMETERY" / C DRAINAGE AREA No. E-�
LIVINGSTON / ��
\ CHARLES LIVINGSTON N/F / �/ ' . ® W
\ \ CHADWICK W. HALL CUM OF SUPERIOR
D COUNTY / cl�- \ 1 AREA (ACRES)
CLERK OF SUPERIOR COURT
JENNIFER H. HALL
DB 92 PG 191 6. P' �\ WILLIAM C. TARR II PIN# 0444-71-9142 / \ DRAINAGE AREA BOUNDARY
Z
DB 14E PG 123 POSSIBLE �E , S
. \ PIN# 0444-71-2099 CEMETERY � �• • \
O
\
FENCE)' J goo s
�4C \ ENCROACHMENT Ste/
I--i--I
( \ / /� Rp. N: 44854.13' AREA 2 DRAINAGE POINT OF ANALYSIS x
S'S'2 P o /PGA Nj / • • a• E: 2048524.04' 34.9637727°N, -78.8378132°W \
a • a ELEV: 77.85
8 \ #2 (POINT OF • a •
V 0 LOCALIZATION) a • • i „i . •' \
\ 01 E: 2047965.38'
\ ELEV: 85.80 (TBM) LID
\� CSF. 0.9999969283
�' \\ i oo►
Z
.21
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CEMETERY `v✓ d a ''got O ex
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\ / �� ENCROACHMENT
I� TC� _ a •
Q 81 $2� • a
R
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00
O t° 85
00 A
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CEMETERY FENCE 84
z Q ENCROACHMENT v
NOW OR FORMALLY
� sus �� �� L( CITY OF FAYETTEVILLE a
1 SEAL
PIN: 0454-02-0075 \ 1 056748
z COP, D.B. 2433 PG. 0629 ���`.,.F
� 9�� PB 41, PG 40 s3 8 �•,��(% GINE...°�Q`��`��
244.73 ACRES �i,, ��...R'...�P
rn � � � � 8
AREA 1 DRAINAGE POINT OF ANALYSIS o �� _ -84-�
34.9608807470°N, -78.841 1 1 07343°W �86_ TIME OF _ \ ©-85 06/2023
CONCENTRATION
/ ® FLOWPATHS - -86 �� ,84 �° 8 w N C,
R) A 86
L �2� 0 0
• • s6� TIME OF o ss �8�
•• CONCENTRATION 89- PP � �_ w
J J
a FLOWPATHS -88CID
-87
a QJ
d
4%� 88 �86
MARKED GRAVESITE 9� 88, \ i 84�
OUTSIDE OF 89� $6 8 \
CEMETERY BOUNDARY -88 �� i� 6 / z
100 F 0
�_ \ -g9 / \ 86 TRAINING YARD / \ i >
f S w
• 6 / 485- 60.
• All a8� 8j 4b
a 86�• 84 � d>
:2 �
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,• 85 �� ,85 / - 83� -83 _ 83 Ld
84 -84 �
MARKED GRAVESITE OUTSIDE 8� ® � �� �� 82� �� 85�� -84 �84� ILL 0
0 0
OF CEMETERY BOUNDARY / �85_ 0 cY
•• 3 Ld
CO / 1 ��� ���� 86- -86 �85
• 8-1 4 ,� � -86 - z
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85-- _� _86- o 0
• _ 84� 86_ 86
a • A / 83 -84-
• A 8 z81-All
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• _ (1 p NG _ _ W
oo► !oo►\ \ 8 / l �► P�XIMq T Eq M \ CL Z
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Ago" qRY � 0
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\ ►- e oo► aA` a Got U W U)
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AREA 3 DRAINAGE POINT OF Q U
ANALYSIS . • • ia • C
34.9596572641°N, ;a • • ;: • . LJ L �j
-78.8378785124°W AREA 4 DRAINAGE POINT OF ANALYSIS • • • • • • ;: • . • • • a • ; . a Q N
a •
34.9604820458°N, -78.8367892974°W 0a
N
bi
0 a
POST-CONSTRUCTION DRAINAGE SUMMARY a- 0
DRAWN BY: JEH/REA
Drainage Area Size (Acres)
Runoff Coefficient Time of Concentration Length of Travel (ft) Height of Most Remote Point Average Slope Percent CHECKED BY: LRH
(C) (Unitless) (Tc) (Minutes) Above Outlet(ft) tftft Impervious APPROVED BY: LRH
1 6.57 0.35 10.20 1068.1 9.83 0.9% 0.00% DATE: 06/27/2023
2 12.19 0.35 6.45 838.6 15.63 1.9% 1.83% 100 50 25 0 100 SCALE: 1" = 100'
3 2.14 0.35 5.59 588 7.84 1.3% 0.00%
REFERENCES FILE NUMBER: 12549CG
1"=100'
SHEET:
4 7.18 0.35 6.28 761.8 12.59 1.7% 0.00% CONSTRUCTION SEQUENCE, LEGEND, AND NOTES..................CGO02
CG300

P TEMPORARY PP I,I V- 00 00 CO
DIVERSION CO J N 00 CO �� GEOTEXTILE FABRIC EL - 86.0'
UNDER RIP RAP -
P ! BERM I CO - EL = 85.5' (TOP OF ROCK)
PIPE OUTLET INVERT TO BE / EL = 85.0' (SPILLWAY CREST) E-
CID INSTALLED 1' BELOW EXISTING SKIMMER BASIN
s GRADE. DIG RIPRAP-LINED PIT TO �\ 6" DIAMETER RIP RAP SLOPE COMPACTED 6"0 CLASS B F-+
ACCOMODATE OUTLET. SEE RIPRAP I APRONS AT AREAS OF 3. 1 FILL �� RIP RAP
PLUNGE POOL DETAIL ON SHEET P 66 SILT FENCE OUTLET o 50' CONCENTRATED FLOW
� CG502. \ /
SF ti EL = 83.0' COMPACTED Q�
Vn SF ` NATIVE SOIL NATIVE SOIL w
TEMPORARY DRAINAGE I � / � T
BAFFLES111:141 CHANNEL #1A EMBANKMENT SPILLWAY CROSS SECTION
� SF � PIPE OUTLET INVERT TO BE W I \ / x
SF INSTALLED 2' BELOW EXISTINGVn N
GRADE. DIG RIPRAP-LINED PIT TO I \ EL = 86.0'
\ 232 SF, ACCOMODATE OUTLET. SEE RIPRAP
SF PLUNGE POOL DETAIL ON SHEET 'CG502. \ \ EL - 85.0'
c� I
T SF S u-
N 1 SCH 40 PVC 4" SKIMMER V) \ \ COMPACTED COMPACTED
(2.0" 0 ORIFICE) 15" DIAMETER BARREL FILL FILL V
BARREL INV. IN= 77.5' I S M �,
BARRE
6" DIAMETER RIP BARRELLLE G OUT 124 50' ` U- O g
� 1 N (TOP OF ROCK) PI W Y M
� \ RAP APRONS AT MATERIAL= CORRUGATED METAL S 6"0 CLASS B " LL
�
AREAS OF J I . RIP RAP a Z
CONCENTRATED DISTURBANCE LIMIT� Jca
FLOW AND SILT FENCE
ALONG EDGE OF
\ ,� EMBANKMENT SPILLWAY PROFILE VIEW
100-YEAR FLOODPLAIN cn Cry
SILT FENCE OUTLET BASIN 1 SKIMMER o0
\ o / SPILLWAY $ J (SKIMMER)
)
�S� J
EMBANKMENT/SPILLWAY DETAILS
SPILLWAY (p o r h
� 24 DIAMETER METAL RISER 61 a I N.T.S.
�' CREST AT EL.= 79.0
DO
SCH 40 PVC 4.0 0 SKIMMER S I00i
" U- 1' ' GEOTEXTILE FABRIC ��`� �,,.. . .....•
\ / 2.5 ORIFICE / co
EL = 81.5 .` '
( �i UNDER RIP RAP SS/ •' '�
cn / - EL = 81.0' (TOP OF ROCK)
� BAFFLES co EL = 80.5' (SPILLWAY CREST) _' a
DISTURBANCE �� /\// �, / SEDIMENT BASIN = SEAL s =
LIMIT AND SILT Jp \/ // //\/\ \ ' 056748
//\/� \ \/ // \ �I / SLOPE COMPACTED 6"0 CLASS B 's�`••.F` Q-.'•`'�
FENCE ALONG \/\// \//\ 00 S N FI LL '%9 '•• N ••'
RIP RAP . .. GINE.••• Q`e,
50' OFFSET FROM / / /\ \ \ \ 3: 1 �/ , G''' •..............
.••,• •••.• , �k
PROPERTY LINE / \ //\// /�� �J� \ I `� ����''Rq R• HP •
7 \ TEMPORARY DRAINAGE / EL - 77.5 COMPACTED NATIVE SOIL © 06/2023
�A� CHANNEL #1B NATIVE SOIL
CN
/\/\//\///\/��/\ I J N EMBANKMENT SPILLWAY CROSS SECTION S N
\/\ 6„ DIAMETER RIP RAP / o 0
APRONS AT AREAS OF
CONCENTRATED FLOW EL = 81.5' z Of Of
J
w J
SEDIMENT BASIN #1 DETAILS / TEMPORARY
DRAINAGE EL 80.5=
\ / DESCRIPTION # , CHANNEL #2A COMPACTED
i COMPACTED
Sys SF 30 15 7.5 0 30 SURFACE AREA (FT )2 16,461 \ 0 30 15 7.5 0 30 FILL FILL
_85-
86 1"=30' STORAGE VOLUME (FT )3 22,434 y 00 1"=30' EL = 81.0' PI W_Y ( (�
(TOP OF ROCK)
BASIN #1 (SKIMMER) PLAN VIEW BASIN #2 (SEDIMENT) PLAN VIEW 6"0 CLASS B
RIP RAP Z
0
L
SCALE: 1" = 30' SCALE: 1" = 30' w
EMBANKMENT/SPILLWAY PROFILE VIEW
SEDIMENT BASIN #2 SECTIONAL VIEW ~
�
BASIN #2 (SEDIMENT)
�
co
w Z
w
� M
I_ 5' MINIMUM +. BASIN LENGTH I EMBANKMENT/SPILLWAY DETAILS o 0
BASIN #1 (SKIMMER) DETAILS I- STRUNOFFR
TOP OF EMBANKMENT A" �� I L.L_ U
EMERGENCY SPILLWAY"B" N.T.S. Ld Ld
(SEE DETAIL) 10-YR WATER SURFACE ELEVATION •C• =) 0
DESCRIPTION # DESCRIPTION # , J RISER CREST "D" V) (�
EARTHEN DAM SKIMMER - Z
(SEE DETAIL)
BOTTOM ELEVATION ( )2 PRINCIPLE �_ BAFFLE HEIGHT"E• �: Z
83.0 SURFACE AREA FT 13,034 rANTI-SEEP COLLAR (SSP EE DETAIL) D Z
SILT FENCE /// USE COIR FIBER
OUTLET ORIFICE
POOL ELEVATION 84.5' STORAGE VOLUME (FT )3 18,460 I - - __ __ SKIMMER ORIFICE ELEVATION "F" E BAFFLES
BARREL _ BASIN BOTTOM "G"
EMERGENCY SPILLWAY 85 0 OUTLET PIPE LENGTH --- I H
48.0 I I�I� I POROUS BAFFLES IP-RAP STABILIZATION Z
ELEVATION 4 0 SCHEDULE 40 PVC BARREL (DO NOT USE SILT FENCE) SUPPORT POST, Ld
TOP OF BANK OUTLET PIPE INLET INVERT ELEV. , OUTLET EL-77.0 RISER ANTI-FLOATATION
(SEE DETAIL) SUPPORT ROPE TO 24 INTO BOTTOM
ELEVATION 86.0 @ SKIMMER DEWATERING DEVICE 83.0 WIRE TO PREVENT OR SIDE STAKE TO SUPPORT :2
OUTLET PIPE OUTLET INVERT ELEV. TRASH RACK AND PRINCIPLE SPILLWAY DETAIL SAGGING WIRE N 0 N
SIDE SLOPE RATIO 3H: 1 V 82.4 ANTI-VORTEX DEVICE 7 _j
@ LOW END EMERGENCY SPILLWAY DETAIL WEIR W J
SKIMMER ORIFICE PLATE „ RIP RAP, 6-INCH CLASS B Y > Q
SPILLWAY WIDTH 40.0 FOR 3 DAY DRAW DOWN 2.0
00 W
GEOTEXTILE FABRIC ~ F� = RISER HEIGHT 1.5' 0
I_ �/�/ _I RISER �2 = RISER DIAMETER 24
=III=1_ =III- 4„ Q z
RH � = ORIFICE DIAMETER 7COIR MESH, STAPLED OR I N
-III-I I. -III- � d WEIR INVERT HEIGHT N/A U Q Q
-III-III=III- I I-III- �-I = TRENCHED INTO BOTTOM OR SIDE � m
_ *MAINTENANCE*
-I I I-III-III - I I-III SW= SPILLWAY WIDTH 35.0' d = BARREL DIAMETER 15" ACCESS TO THE INSPECT SBAT LEAS ONCE T WEEK AND AFTER EACH
C OF THE BAFFLESRAINFALL.
MAKE
ANY DE PAIRS IMMEDIATELY.
DIABELY. BE
EIN SURE
RECTO MAINTAIN
E
-III=1 I I-III-III-1 1=1 11=1 11=1 11-I 11=1 11=III-I 11=
I- - - - - - - - - - - IT PROMPTLY. REMOVE SEDIMENT DEPOSITS WHEN IT REACHES HALF FULL TO PROVIDE ADEQUATE STORAGE VOLUME FOR THE NEXT Q Q
J I I-III-III-III-III-III-III-III-III-III-I I I-I I INSTALL SKIMMER INTO ORIFICE RAIN AND TO REDUCE PRESSURE ON THE BAFFLES. TAKE CARE TO AVOID DAMAGING THE BAFFLES DURING CLEANOUT. SEDIMENT Z J
III-III-III-III-III-III-III-III-III-III-III0-1 CI:R DEPTH SHOULD NEVER EXCEED HALF THE DESIGNED STORAGE DEPTH. AFTER THE CONTRIBUTING DRAINAGE HAS BEEN PROPERLY 0
I-III=III=III=1 I 1=1 I 1=1 I1=1 I 1=1 I1=1II I I BARREL STABILIZED, REMOVE ALL BAFFLE MATERIALS AND UNSTABLE SEDIMENT DEPOSITS, BRING THE AREA TO GRADE AND STABILIZE IT. w 0 z
-III=III=III-III-III-III-III-III- BAFFLE DETAIL
of
o �a
SEDIMENT BASIN #1 DESIGN TABLE a_ 0
e Skimmer Average Sediment Basin Skimmer Skimmer Skimmer Daily Dewatering No. of N.T.S. DRAWN BY: JEH/REA
"A" "B" "C" "D" "E" "I"' "G" Discharge Capacity Discharge Rate CHECKED BY: LRH
Name/Number Size (in.) Orifice (in.) (FT3/DAY) (CFS) Time (Days)Skimmers
APPROVED BY: LRH
1 81.5' 80.5' 79.0' 79.0' 3.0' 77.5' 77.5' 4.0" 2.5" 8,340 0.097 2.69 1 DATE: 06/27/2023
SCALE: 1" = 100'
REFERENCES FILE NUMBER: 12549CG
CONSTRUCTION SEQUENCE, LEGEND, AND NOTES..................CGO02 SHEET:
CG400

GEOTEXTILE FABRIC
86_ UNDER RIP RAP
�\ / /\ \/ � EL 83.5'
_ �\ \/ //
EL 83.0 (TOP OF ROCK)
\ ���/ EL = 82.5 (SPILLWAY CREST)
T
\/\ \ / ,/ / I z g�� \/// \//\/ SKIMMER BASIN
\ \/ EMPORARY DRAINAGE w / \
\/� CHANNEL #313 I /\// / '� COMPACTED G »
//\ \ SLOPE 6 0 CLASS B H
/\ \ 5 / _ \ FILL RIP RAP �
J� \/ U/
/\ \ \/ TEMPORARY DRAINAGE -� 3: 1
CHANNEL #4B
X\
\ \ / -�
\ 5 / \ EL = 80.5' O
NATIVECSOIIL NATIVE SOIL
i
\ / 6" DIAMETER RIP RAP / / \ 9
\ APRONS AT AREAS OF / EMBANKMENT SPILLWAY CROSS SECTION
CONCENTRATED FLOW / � �bo��
/ / \ i -n
\ /"\�.A�� -F V \ EL = 83.5'
TEMPORARY
DRAINAGE / / / / / EL = 82.5'
CHANNEL #3A
\ c7x cb`o / / / / / / / COMPACTED COMPACTED
FI LL FI LL Lo
Lo
�s ^��� / / \ �`�/ ��j / - - V - -8z- o 21
�a
Q� / / \ EL = 83.0' PI W Y O
\ \ 0
I c� / / � / � ) (TOP OF ROCK) to M
6" RIPLRAP ASS B Ln u
DIAMETER RAP
AT AREASO
CONCENTRATED FLOW
N BAFFLES / / h ��� EMBANKMENT/SPILLWAY PROFILE VIEW 0
/ / �b0/ �cb��� 0 l
�� SCH 40 PVC 1.5" / / o, � 1�� � � �p / SK MMER SCH 40 P(2 04 m
�� SKIMMER (1.25" 0 1 / / l� '�'� ORIFICE) BASIN #3 (SKIMMER)
/ ORIFICE) / 1 ��= EMBANKMENT/SPILLWAY DETAILS
< o
N.T.S.
Pc3F�`�,o+�� \ \ / / �c� ���•� L+��P
�O� \ // c� G Q` O� GEOTEXTILE FABRIC EL = 82.5' .�`��'��•�•
A ems/ lb h � �� _v P� \ \ � ��� 0 -\\ UNDER RIP RAP F SS/ ;
84- - �� �\ `yS \ _ �� / ���-1 C pG \ / �, +�� �� GP - EL = 82.0' (TOP OF ROCK) a y',
0 83' S P� TEMPORARY \ l F' �-1 ��O \ ;Z:•a l •.7 =
P�\� pp1 DRAINAGE O x rot SKIMMER BASIN EL = 81.5 (SPILLWAY CREST)
5 Q' � o s 056748 t
G CHANNEL #4A n 5P G• COMPACTED
SLOPE G 6"0 CLASS B 's �° F` Q-./Co'
\ �`YS FILL •''••.NG E�•''�.�
SPILLWAY �� \� l SILT FENCE / 3 1 ` G/ RIP RAP '(iRq,..IN.tiP�```��
SILT FENCE /`b OUTLET �������00m44110;0%
d � i OUTLET � \ �
EL = 79.5' COMPACTED 0s/02/2024
NATIVE SOIL NATIVE SOIL 06/2023
PIPE OUTLET INVERT TO BE / BAFFLES ©
1"J N N
INSTALLED 1.5' BELOW EXISTINGCN
GRADE. DIG RIPRAP-LINED PIT TO SPILLWAY 'PIPE OUTLET INVERT TO BE / a
ACCOMODATE OUTLET. SEE RIPRAP 5 / CN
EMBANKMENT/SPILLWAY CROSS SECTION o N
PLUNGE POOL DETAIL ON SHEET INSTALLED 1' BELOW EXISTING
CG502. GRADE. DIG RIPRAP-LINED PIT TO
DISTURBANCE DISTURBANCE EL = 82.5 z
LIMIT AND SILT / LIMIT AND SILT ACCOMODATE OUTLET. SEE RIPRAP w J
/ PLUNGE POOL DETAIL ON SHEET
FENCE ALONG � �j5 FENCE ALONG CG502. EL = 81.5'
Q SANITARY \ SANITARY
SEWER v? SEWER COMPACTED COMPACTED
EASEMENT v\ FILL FILL
za 10 5 o za �� EASEMENT 30 15 �5 0 30
Q 1°=20' 1°=30' EL = 82.0' PI W Y
(TOP OF ROCK)
BASIN #3 (SKIMMER) PLAN VIEW BASIN #4 (SKIMMER) PLAN VIEW 6"0 CLASS B
RIP RAP Z
0
L
SCALE: 1" = 20' SCALE: 1" = 30' w
EMBANKMENT/SPILLWAY PROFILE VIEW of
BASIN #4 (SKIMMER) co
wZ
� m
EMBANKMENT/SPILLWAY DETAILS
SKIMMER BASIN #3 DETAILS SKIMMER BASIN #4 DETAILS 0
N.T.S. 0w cy
=) 0
DESCRIPTION # DESCRIPTION # DESCRIPTION # DESCRIPTION # L z
BOTTOM ELEVATION 80.5' SURFACE AREA (FT )2 3,240 BOTTOM ELEVATION 79.5' SURFACE AREA (FT )2 14,706
USE COIR FIBER
POOL ELEVATION 82.0' STORAGE VOLUME (FT )3 4,081 POOL ELEVATION 81.0' STORAGE VOLUME (FT )3 20,362 BAFFLES
EMERGENCY SPILLWAY 82.5' OUTLET PIPE LENGTH 41.0' EMERGENCY SPILLWAY 81 5' OUTLET PIPE LENGTH 54.0' ~
ELEVATION 4 0 SCHEDULE 40 PVC BARREL SUPPORT POST, Z
TOP OF BANK OUTLET PIPE INLET INVERT ELEV. TOP OF BANK OUTLET PIPE INLET INVERT ELEV. SUPPORT ROPE TO 24" INTO BOTTOM Lv
ELEVATION 83.5 @ SKIMMER DEWATERING DEVICE 80.5 ELEVATION 82.5 @ SKIMMER DEWATERING DEVICE 79.5' WIRE TO PREVENT OR SIDE STAKE TO SUPPORT :m
WIRE m
OUTLET PIPE OUTLET INVERT ELEV. OUTLET PIPE OUTLET INVERT ELEV. , SAGGING N 0 N
SIDE SLOPE RATIO 3H: 1 V @ LOW END 80.0 SIDE SLOPE RATIO 3H: 1 V @ LOW END 79'0 7 W J
SKIMMER ORIFICE PLATE 0 SKIMMER ORIFICE PLATE 0 Y > Q
SPILLWAY WIDTH 12.0 1.25 SPILLWAY WIDTH 22.0 2.00 uj
W
FOR 3 DAY DRAW DOWN FOR 3 DAY DRAW DOWN O 0
IIx 0
00
Z
I N
COIR MESH, STAPLED OR U Q
*MAINTENANCE* TRENCHED INTO BOTTOM OR SIDE Q m
INSPECT BAFFLES AT LEAST ONCE A WEEK AND AFTER EACH RAINFALL. MAKE ANY REPAIRS IMMEDIATELY. BE SURE TO MAINTAIN
ACCESS TO THE BAFFLES. SHOULD THE FABRIC OF THE BAFFLES COLLAPSE, TEAR, DECOMPOSE, OR BECOME INEFFECTIVE, REPLACE w w
IT PROMPTLY. REMOVE SEDIMENT DEPOSITS WHEN IT REACHES HALF FULL TO PROVIDE ADEQUATE STORAGE VOLUME FOR THE NEXT Q Q
RAIN AND TO REDUCE PRESSURE ON THE BAFFLES. TAKE CARE TO AVOID DAMAGING THE BAFFLES DURING CLEANOUT. SEDIMENT Z J
DEPTH SHOULD NEVER EXCEED HALF THE DESIGNED STORAGE DEPTH. AFTER THE CONTRIBUTING DRAINAGE HAS BEEN PROPERLY 0
STABILIZED, REMOVE ALL BAFFLE MATERIALS AND UNSTABLE SEDIMENT DEPOSITS, BRING THE AREA TO GRADE AND STABILIZE IT. w 0 z_
BAFFLE DETAIL o o
N.T.S. DRAWN BY: JEH/REA
CHECKED BY: LRH
APPROVED BY: LRH
DATE: 06/27/2023
SCALE: 1$, = 100'
REFERENCES FILE NUMBER: 12549CG
CONSTRUCTION SEQUENCE, LEGEND, AND NOTES..................CGO02 SHEET:
CG401

C�
Practice Standards and Specifications FILTER BAG
•Dewatering Allow the maximum reasonable detention period before the
basin is completely dewatered(at least 48 hours).
? • '
• Inflow rate Reduce the inflow velocity and divert all sediment-free yam.;.�i :: ' • ••••i►
runoff. ��.��� .:.-- - - --- ------ 2 •
!'• • l ��
• t ` :;. I •
FLOW Silo
Plan View
• �� • •� • t
PUMP DISCHARGE HOSE 12 IN MIN.
ULCH, LEAF/WOOD COMPOST,
Inflow PLAN VIEW WOODCHIPS, SAND, OR STRAW BALES
structure o
STRAP
SLOPE
E FLOW
w 5% MAX.
LO
i o
R ELEVATION FILTER BAG M Z
8 IN MIN. _
.21
Skimmer CONSTRUCTION SPECIFICATIONS • cr
dewatering 0
device Emergency 1. TIGHTLY SEAL SLEEVE AROUND THE PUMP DISCHARGE HOSE WITH A STRAP OR SIMILAR DEVICE. o
spillway 2 �
2. PLACE FILTER BAG ON SUITABLE BASE (E.G., MULCH, LEAF/WOOD COMPOST, WOODCHIPS, SAND, OR .5 LL
CA
STRAW BALES) LOCATED ON A LEVEL OR 5% MAXIMUM SLOPING SURFACE. DISCHARGE TO A z
Average _ Area* STABILIZED AREA. EXTEND BASE A MINIMUM OF 12 INCHES FROM EDGES OF BAG. � o
Width W L
3. CONTROL PUMPING RATE TO PREVENT EXCESSIVE PRESSURE WITHIN THE FILTER BAG IN ACCORDANCE o
WITH THE MANUFACTURER RECOMMENDATIONS. AS THE BAG FILLS WITH SEDIMENT, REDUCE PUMPING O
* Area of basin water surface at Baffles RATE.
top of principal spillway elevation a
4. REMOVE AND PROPERLY DISPOSE OF FILTER BAG UPON COMPLETION OF PUMPING OPERATIONS OR M 0
AFTER BAG HAS REACHED CAPACITY, WHICHEVER OCCURS FIRST. SPREAD THE DEWATERED SEDIMENT Y.1
FROM THE BAG IN AN APPROVED UPLAND AREA AND STABILIZE WITH SEED AND MULCH BY THE END
OF THE WORK DAY. RESTORE THE SURFACE AREA BENEATH THE BAG TO ORIGINAL CONDITION UPON
Inflow Baffles 1'Freeboard
Embankment REMOVAL OF THE DEVICE.
/ 5. USE NONWOVEN GEOTEXTILE WITH DOUBLE STITCHED SEAMS USING HIGH STRENGTH THREAD. SIZE
structure SLEEVE TO ACCOMMODATE A MAXIMUM 4 INCH DIAMETER PUMP DISCHARGE HOSE. THE BAG MUST BE
/ \ MANUFACTURED FROM A NONWOVEN GEOTEXTILE THAT MEETS OR EXCEEDS MINIMUM AVERAGE ROLL
VALUES (MARV) FOR THE FOLLOWING: << ,
Diggr-ing
GRAB TENSILE 250 LB ASTM D-4632
6"min.invert elevationofemergency spillway PUNCTURE 150 LB ASTM D-4833
Emergency FLOW RATE 70 GAL/MIN/FTZ ASTM D-4491 falaric = spillway PERMITTIVITY (SEC-') 1.2 SEC-' ASTM D-4491
UV RESISTANCE 70% STRENGTH CAD 500 HOURS ASTM D-4355
Sediment Cross-Section APPARENT OPENING SIZE (ADS) 0.15-0.18 MM ASTM D-4751 S� �s
storage zone View SEAM STRENGTH 90% ASTM D-4632 ` /�/ '• =
6. REPLACE FILTER BAG IF BAG CLOGS OR HAS RIPS, TEARS, OR PUNCTURES. DURING OPERATION KEEP Z�•4� '9�•':�
Figure 6.64c Example of a sediment basin with a skimmer outlet and emergency spillway. From Pennsylvania CONNECTION BETWEEN PUMP HOSE AND FILTER BAG WATER TIGHT. REPLACE BEDDING IF IT BECOMES = SEAL
Erosion and Sediment Pollution Control Manual,March,2000. DISPLACED. s 056748
i t
STANDARDS AND SPECIFICATIONS FOR SOIL EROSION AND SEDIMENT CONTROL ��'9G.N(�I N��.••••�
RA
Rev.S/13 6.64.7 U.S. DEPARTMENT OF AGRICULTURE NATURAL RESOURCES CONSERVATION SERVICE - 2011 /, ryR ,+`; ���``
© 06/2023
SKIMMER BASIN (TYP.) FILTER BAG DEWATERING DEVICE
0
N
N.T.S. N o
N.T.S.
wof
CONSTRUCTION SPECIFICATIONS:
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
PVC VENT 4 SCHEDULE 40 DISPOSAL AREA. PLACE TEMPORARY SEDIMENT CONTROL MEASURES BELOW BASIN AS NEEDED.
PVC END PIPE PVC PIPE 2. ENSURE THAT FILL MATERIAL FOR THE EMBANKMENT IS FREE OF ROOTS, WOODY VEGETATION, ORGANIC MATTER, AND OTHER OBJECTIONABLE
CAP PVC ELBOW MATERIAL. PLACE THE FILL IN LIFTS NOT TO EXCEED 9 INCHES, AND MACHINE COMPACT IT. OVER FILL THE EMBANKMENT 6 INCHES TO ALLOW
FOR SETTLEMENT.
WATER SURFACE 3. SHAPE THE BASIN TO THE SPECIFIED DIMENSIONS. PREVENT THE SKIMMING DEVICE FROM SETTLING INTO THE MUD BY EXCAVATING A SHALLOW
PIT UNDER THE SKIMMER OR PROVIDING A LOW SUPPORT UNDER THE SKIMMER OF STONE AND TIMBER.
PVC END 4. PLACE THE BARREL (TYP. 4" SCH. 40 PVC PIPE) ON A FIRM, SMOOTH FOUNDATION OF IMPERVIOUS SOIL. DO NOT USE PERVIOUS MATERIAL
PVC TEE CAP SUCH AS SAND, GRAVEL, OR CRUSHED STONE AS BACKFILL AROUND THE PIPE. PLACE THE FILL MATERIAL AROUND THE PIPE SPILLWAY IN 4" to
LAYERS AND COMPACT IT UNDER AND AROUND THE PIPE TO AT LEAST THE SAME DENSITY AS THE ADJACENT EMBANKMENT. CARE MUST BE o VC PIPE ORIFICE PLATE TAKEN NOT TO RAISE THE PIPE FROM THE FIRM CONTACT WITH ITS FOUNDATION WHEN COMPACTING UNDER THE PIPE HAUNCHES. PLACE A �_
1 2" HOLE
UNDERSIDE PVC TEE MINIMUM DEPTH OF 2' OF COMPACTED BACKFILL OVER THE PIPE SPILLWAY BEFORE CROSSING IT WITH CONSTRUCTION EQUIPMENT. IN NO CASE bi
SHOULD BE PIPE CONDUIT BE INSTALLED BY CUTTING A TRENCH THROUGH THE DAM AFTER THE EMBANKMENT IS COMPLETE.
5. ASSEMBLE THE SKIMMER FOLLOWING THE MANUFACTURER'S INSTRUCTIONS, OR AS DESIGNED.
6. LAY THE ASSEMBLED SKIMMER ON THE BOTTOM OF THE BASIN WITH THE FLEXIBLE JOIN AT THE INLET OF THE BARREL PIPE. ATTACH THE ~
4" SCHEDULE 40 FLEXIBLE JOINT TO THE BARREL PIPE AND POSITION THE SKIMMER OVER THE EXCAVATED PIT OR SUPPORT. BE SURE TO ATTACH A ROPE TO
PVC PIPE THE SKIMMER AND ANCHOR IT TO THE SIDE OF THE BASIN. THIS WILL BE USED TO PULL THE SKIMMER TO THE SIDE FOR MAINTENANCE. w
7. EARTHEN SPILLWAYS - INSTALL THE SPILLWAY IN UNDISTURBED SOIL TO THE GREATER EXTENT POSSIBLE. THE ACHIEVEMENT OF PLANNED
ELEVATIONS, GRADE, DESIGN WIDTH, AND ENTRANCE AND EXIT CHANNEL SLOPES ARE CRITICAL TO THE SUCCESSFUL OPERATION OF THE 0 0
SPILLWAY. THE SPILLWAY SHOULD BE LINED WITH LAMINATED PLASTIC OR IMPERMEABLE GEOTEXTILE FABRIC. THE FABRIC MUST BE WIDE AND LL 0
LONG ENOUGH TO COVER THE BOTTOM AND SIDES AND EXTEND ONTO THE TOP OF THE DAM FOR ANCHORING IN A TRENCH. THE EDGES MAY 0 cY
BE SECURED WITH 8" STAPLES OR PINS. THE FABRIC MUST BE LONG ENOUGH TO EXTEND DOWN THE SLOPE AND EXIT ONTO STABLE GROUND. � 0
4 THE WIDTH OF THE FABRIC MUST BE ONE PIECE, NOT JOINED OR SPLICED; OTHERWISE WATER CAN GET UNDER THE FABRIC. IF THE LENGTH OF to v
THE FABRIC IS INSUFFICIENT FOR THE ENTIRE LENGTH OF THE SPILLWAY, MULTIPLE SECTIONS, PLANNING THE COMPLETE WIDTH, MAY BE USED.
�I z
THE UPPER SECTIONS) SHOULD OVERLAP THE LOWER SECTIONS) SO THAT WATER CANNOT FLOW UNDER THE FABRIC. SECURE THE UPPER o 0
EDGE AND SIDES OF THE FABRIC IN A TRENCH WITH STAPLES OR PINS. z
FLEXIBLE 8. INLETS - DISCHARGE WATER INTO THE BASIN IN A MANNER TO PREVENT EROSION. USE TEMPORARY SLOPE DRAINS OR DIVERSIONS WITH
HOSE OUTLET PROTECTION TO DIVERT SEDIMENT-LADEN WATER TO TEH UPPER END OF THE POOL AREA TO IMPROVE BASIN TRAP EFFICIENCY.
9. EROSION CONTROL - CONSTRUCT THE STRUCTURE SO THAT THE DISTURBED AREA IS MINIMIZED. DIVERT SURFACE WATER AWAY FROM BARE
AREAS. COMPLETE THE EMBANKMENT BVEFORE THE AREA IS CLEARED. STABILIZE THE EMERGENCY SPILLWAY EMBANKMENT AND ALL OTHER
DISTURBED AREAS ABOVE TEH CRFEST OF THE PRINCIPAL SPILLWAY IMMEDIATELY AFTER CONSTRUCTION. Z
10. INSTALL POROUS BAFFLES AS SPECIFIED IN BAFFLE DETAIL. W
11. AFTER ALL THE SEDIMENT-PRODUCING AREAS HAVE BEEN PERMANENTLY STABILIZED, MOVE TEH STRUCTURE AND ALL THE UNSTABLE SEDIMENT. �
SMOOTH THE AREA TO BLEND WITH THE ADJOINING AREAS AND STABILIZE PROPERLY. M
BOTTOM SURFACE
END VIEW FRONT VIEW MAINTENANCE NOTES: N O J
1. INSPECT SKIMMER SEDIMENT BASINS AT LEAST WEEKLY AND AFTER EACH SIGNIFICANT (1 INCH OR GREATER) RAINFALL EVENT AND REPAIR Ld
IMMEDIATELY. REMOVE SEDIMENT AND RESTORE THE BASIN TO ITS ORIGINAL DIMENSIONS WHEN SEDIMENT ACCUMULATES TO ONE-HALF THE Y >
HEIGHT OF THE FIRST BAFFLE. PULL THE SKIMMER TO ONE SIDE SO THAT THE SEDIMENT UNDERNEATH IT CAN BE EXCAVATED. EXCAVATE THE U Lij W
SEDIMENT FROM THE ENTIRE BASIN, NOT JUST AROUND THE SKIMMER OR THE FIRST CELL. MAKE SURE THE VEGETATION GROWING IN THE 0 0 0
ARM ASSEMBLY BOTTOM OF THE BASIN DOES NOT HOLD DOWN THE SKIMMER.
2. REPAIR THE BAFFLES IF THEY ARE DAMAGED. RE-ANCHOR BAFFLES IF WATER IS FLOWING UNDERNEATH OR AROUND THEM. Z
"C" ENCLOSURE 3. IF THE SKIMMER IS CLOGGED WITH TRASH AND THERE IS WATER IN THE BASIN, USUALLY JERKING ON THE ROPE WILL MAKE THE SKIMMER BOB I Q
UP AND DOWN AND DISLODGE THE DEBRIS AND RESTORE FLOW. IF THIS DOES NOT WORK, PULL THE SKIMMER OVER TO THE SIDE OF THE 0
BASIN AND REMOVE THE DEBRIS. ALSO CHECK THE ORIFICE INSIDE THE SKIMMER TO SEE IF IT IS CLOGGED; IF SO REMOVE THE DEBRIS. Q
4. IF THE SKIMMER ARM OR BARREL PIPE IS CLOGGED, THE ORIFICE CAN BE REMOVED AND THE OBSTRUCTION CLEARED WITH A PLUMBER'S SNAKE ?� Q m
OR BY FLUSHING WITH WATER. BE SURE AND REPLACE THE ORIFICE BEFORE REPOSITIONING THE SKIMMER.
5. CHECK THE FABRIC LINED SPILLWAY FOR DAMAGE AND MAKE ANY REQUIRED REPAIRS WITH FABRIC THAT SPANS THE FULL WIDTH OF THE
VWATER� ENTRY SPILLWAY. CHECK THE EMBANKMENT, SPILLWAYS, AND OUTLET FOR EROSION DAMAGE, AND INSPECT THE EMBANKMENT FOR PIPING AND Q Q
UNIT SETTLEMENT. MAKE ALL NECESSARY REPAIRS IMMEDIATELY. REMOVE ALL TRASH AND OTHER DEBRIS FROM THE SKIMMER AND POOL AREAS. z J p
6. FREEZING WEATHER CAN RESULT IN ICE FORMING IN THE BASIN. SOME SPECIAL PRECAUTIONS SHOULD BE TAKEN IN THE WINTER TO PREVENT 0
THE SKIMMER FROM PLUGGING WITH ICE. w 0 z
0 a
of
a_ 0
PERSPECTIVE VIEW SKIMMER DEWATERING DEVICE DRAWN BY: JEH/REA
CHECKED BY: LRH
N.T.S. N.T.S. APPROVED BY: LRH
DATE: 06/27/2023
SCALE: 1" = 100'
REFERENCES FILE NUMBER: 12549CG
CONSTRUCTION SEQUENCE, LEGEND, AND NOTES..................CGO02 SHEET:
CG402

CONSTRUCTION SPECIFICATIONS
1. SET STEEL POSTS 2'-0" DEEP AND EXCAVATE 3. ATTACH THE SILT FENCE GEOTEXTILED
E-
A 4" X 8" TRENCH UPSLOPE ALONG THE LINE FABRIC TO THE SECOND WIRE FROM 40 RADIUS O„
OF POSTS. THE TOP ON THE WIRE FENCE AND \ �O, 2"-3" COARSE
EXTEND IT INTO THE TRENCH. AGGREGATE
2. ATTACHTHE WIRE FENCING TO 4. THE END OF THE SILT FENCE NEEDS \ Z
MIN. 10 GA. TO BE TURNED UPHILL \
LINE WIRES 5. BACKFILL AND COMPACT THE00 \ \ O
EXCAVATED SOIL.
8 �
/ PLASTIC OR y� \ GEOTEXTILE NON WOVEN FABRIC
�j WIRE TIES
/
MIN. 12-1/2 GA.
/ INTERMEDIATE WIRES
/ 1 / \ I
\ \ \� 40' m Z� �
EXTENSION OF FABRIC AND RADIUS •-
8"MIN. WIRE INTO THE TRENCH o
*MAINTENANCE* a C?
STEEL POST MAINTAIN THE GRAVEL PAD IN A CONDITION TO PREVENT MUD OR SEDIMENT FROM LL
LEAVING THE CONSTRUCTION SITE. THIS MAY REQUIRE PERIODIC TOPDRESSING , Z
FILTER FABRIC *MAINTENANCE* WITH 2-INCH STONE. AFTER EACH RAINFALL, INSPECT ANY STRUCTURE USED TO s
TRAP SEDIMENT AND CLEAN IT OUT AS NECESSARY. IMMEDIATELY REMOVE ALL
IR INSPECT SEDIMENT FENCES AT LEAST ONCE A OBJECTIONABLE MATERIALS SPILLED, WASHED, OR TRACKED ONTO PUBLIC ROADWAYS. O
a
BACKFILL TRENCH WEEK AND AFTER EACH RAINFALL. MAKE ANY Q
0
AND COMPACT REQUIRED REPAIRS IMMEDIATELY. SHOULD THE TRACY HALL ROAD m
THOROUGHLY FABRIC OF A SEDIMENT FENCE COLLAPSE, TEAR,
DECOMPOSE OR BECOME INEFFECTIVE, REPLACE7GEOTEXTILE
IT PROMPTLY. REMOVE SEDIMENT DEPOSITS ASNECESSARY TO PROVIDE ADEQUATE STORAGE NON-WOVEN FABRIC
VOLUME FOR THE NEXT RAIN AND TO REDUCE TEMPORARY CONSTRUCTION
PRESSURE ON THE FENCE. REMOVE ALL FENCING ENTRANCE DETAIL
CONSTRUCTION OF A SILT FENCE MATERIALS AND UNSTABLE SEDIMENT DEPOSITS
AND BRING THE AREA TO GRADE AND STABILIZE N.T.S. �.�����.�• �''®',,
N.T.S. IT AFTER THE CONTRIBUTING DRAINAGE AREA F SS/
HAS BEEN PROPERLY STABILIZED.
Z••4�SEAL
SEE CHANNEL DETAILS _
TABLE ON SHEET CG200� s 056748 t
CONSTRUCTION SPECIFICATIONS: TOP OF SILT FENCE w J o o - �i� Ra��������
1. SET STEEL POSTS 2 DEEP AND MUST BE AT LEAST 1 w z - w w o `_ 3H: 1 V SIDE SLOPE (REQUIRES
bi W N
EXCAVATE A PIT UPSLOPE ALONG THE ABOVE THE TOP OF " cn a w m = c� - 2 STABILIZATION WITHIN 7 CALENDAR DAYS) 03/D��2024
LINE OF POSTS. (SEE PLAN SHEETS FOR THE WASHED STONE Q �' - © 06/2023
INDIVIDUAL PIT DIMENSIONS.) _ _li EROSION CONTROL LINER. USE
2. ATTACH WIRE FENCING TO THE POSTS. T - - - - - - - =�' ROLLMAX ERONET S75 EROSION o 0
CONTROL BLANKET OR EQUIVALENT.
N N
3. ATTACH THE SILT FENCE FILTER FABRIC - SEE PRODUCT SPECIFICATIONS ONCN
AND HARDWARE CLOTH TO THE SECOND TRAPEZOIDAL CHANNEL SHEET CG501. o 0
WIRE FROM THE TOP ON THE WIRE BURY WIRE FENCE, CROSS SECTION (TYP.)
FENCE AND EXTEND IT INTO THE PIT. HARDWARE CLOTH FRONT VIEW FILTER FABRIC, w J
4. THE END OF THE SILT FENCE NEEDS TO II AND HARDWARE N.T.S.
BE TURNED UPHILL. u CLOTH IN PIT
5. FILL THE PIT WITH #57 WASHED STONE. WIRE FENCE 7 EARTHEN EROSION CONTROL LINER. USE ROLLMAX
6. PLACE AT LEAST 16" OF #57 WASHED STEEL FENCE POST FILL 2' ERONET S75 EROSION CONTROL BLANKET OR
STONE IN FRONT OF THE HARDWARE HARDWARE CL TH
CLOTH. STEEL FENCE POST SET MAX 2' APART EQUIVALENT. SEE PRODUCT SPECIFICATIONS
MIN. 18" INTO SOLID 3H: 1 V SIDE SLOPE ON SHEET CG501.
*MAINTENANCE* STONE MUST BE GROUND (REQUIRES
n n n n n n n
1. INSPECT SILT FENCE OUTLETS AT LEAST NO LESS THAN STABILIZATION WITHIN16" ABOVE 0
$a 3' FILTER FABRIC 7 CALENDAR DAYS) 3 I� 3
ONCE A WEEK AND AFTER EACH 00 ON GROUND � 2'
RAINFALL. MAKE ANY REQUIRED REPAIRS GRADE � ���° 1 I 1
z
IMMEDIATELY. FILTER OF #57 ��Do Qa�°a ga i o
2. SHOULD THE CLOTH COLLAPSE, TEAR, WASHED STO �'� a�°� a -
DECOMPOSE, OR BECOME INEFFECTIVE, � °8b ° aw°°c - bi
bi
REPLACE IT PROMPTLY. 1' o�go �a �
3. REMOVE SEDIMENT DEPOSITS AS ° BURY A MIN. OF 6" OF UPPER EDGE EARTHEN BERM NATIVE
NECESSARY TO PROVIDE ADEQUATE 5° II OF FILTER FABRIC IN PIT SOIL w z
STORAGE VOLUME FOR THE NEXT RAIN BURY WIRE FENCE AND N.T.S. uj
AND TO REDUCE PRESSURE ON THE HARDWARE CLOTH; LAY CLOTH IN o 0
FENCE. TAKE CARE TO AVOID BOTTOM AND AROUND SIDES OF U
UNDERMINING THE FENCE DURING SECTION VIEW EXCAVATION PIT cy
CLEANOUT. 5' CQ o
5. REPLACE STONE IF ANY EROSION HAS (TYP.) M Z
OCCURRED AROUND OR BELOW THE
STONE, OR IF STONES HAVE BECOME
DISLODGED. SILT FENCE
-n n n-n rn rn n n-n rn r
6. REMOVE ALL FENCING MATERIALS AND (SEE DETAIL)
UNSTABLE SEDIMENT DEPOSITS AND BRING
THE AREA TO GRADE AND STABILIZE IT rlll-1II- Z
AFTER THE CONTRIBUTING DRAINAGE AREAII� -11
W Z
HAS BEEN PROPERLY STABILIZED. ^�, li- SOIL/SEDIMENT O i1=11 STOCKPILE -111 _ N N
O
SILT FENCE OUTLET i_ cn O J
I ll AREA =11 J —
N.T.S. I�Ili=li IIILij
III Y > W ~
U W Lv
� — — p0R -1D
ORIGINAL GROUND SURFACE Q JO
NOTES:
U � ZZ
1. SILT FENCE TO EXTEND AROUND THREE SIDES OF ANY STOCKPILE, OR IF STOCKPILE AREA IS Q
LOCATED ON NEAR A SLOPE THE SILT FENCE IS TO EXTEND ALONG CONTOURS OF THE w Q OU
/ w ix
DOWN-GRADIENT AREA. Z J U
U N z
2. IF STOCKPILE IS TO REMAIN FOR MORE THAN 14 DAYS, TEMPORARY STABILIZATION MEASURESbi
o a
MUST BE IMPLEMENTED. of o
3. STOCKPILE SILT FENCE SHALL BE MAINTAINED UNTIL STOCKPILE AREA HAS EITHER BEEN DRAWN BY: JEH/REACHECKED BY: LRH
REMOVED OR PERMANENTLY STABILIZED. APPROVED BY: LRH
4. THE KEY TO FUNCTIONAL TEMPORARY STOCKPILE AREAS IS WEEKLY INSPECTIONS, ROUTINE DATE: 06/27/2023o'
go_
MAINTENANCE, AND REGULAR SEDIMENT REMOVAL. SCALE: 1"FILE NUMBER: 10c
TEMPORARY STOCKPILE SHEET:
N.T.S. CG500

12"
TEMPORARY SEEDING IN NORTH CAROLINA PERMANENT SEEDING IN NORTH CAROLINA
(30CM)
SEEDING MIXTURE
SPECIES RATE (LB/ACRE
SEEDING MIXTURE TALL FESCUE 80
SPECIES RATE (LB/ACRES SWITCHGRASS 20
6° ® _ RYE (GRAIN) 120 SPLITBEARD BLUESTEM 10
LATE WINTER &
z `J X. ' - \ © EARLY SPRING SWITCHGRASS 50
SEEDING NOTES Z
4" 1. AFTER AUGUST 15 USE UNSCARIFIED SWITCHGRASS AND SPLITBEARD
--i •1 (10CM) A
1 BLUESTEM SEED.
7/ �' GERMAN MILLET 40 2. TO EXTEND SPRING SEEDING DATES INTO JUNE, ADD 15 LB/ACRE Q� O
r _
� SUMMER HULLED BERMUDAGRASS. HOWEVER, AFTER MID-APRIL IT IS
t' - - PREFERABLE TO SEED TEMPORARY COVER. W
r,
ii'•�•'i 2"-5"
NURSE PLANTS
,',',', 1�^ (5CM-12.5CM)
1
1
:«««=fffffffffff>< BETWEEN MAY 1 AND AUGUST 15 ADD 10 LB ACRE GERMAN MILLET OR
:_::::::� FALL
_««<: ::»»>-»»»»> RYE GRAIN 120
(GRAIN)
F`> - y��� 15LB/ACRE SUDANGRASS. PRIOR TO MAY 1 OR AFTER AUGUST 15 ADD
4'-6'
(10CM-15CM) 40 LB/ACRE RYE (GRAIN).
.........._. ::_::::::::::::::::::::::::• -'•'• SEEDING DATES:
_-_ SEEDING DATES
® CRITICAL POINTS ® MOUNTAINS - ABOVE 2500 ft: FEB. 15 - MAY 15 BEST POSSIBLE
A.OVERLAPS AND SEAMS
B B.PROJECTED WATERLINE LATE WINTER & BELOW 2500 ft: FEB. 1 - MAY 1 FALL: AUGUST 25 - SEPTEMBER 15 AUGUST
LID
C.CHANNEL BOTTOM/SIDE PIEDMONT - JAN. 1 - MAY 1 N
C SLOPE VERTICES EARLY SPRING 20 - OCTOBER 25 z
COASTAL PLAIN - DEC. 1 - APR. 15
HORIZONTAL STAPLE SPACING SHOULD BE ALTERED
A IF NECESSARY TO ALLOW STAPLES TO SECURE THE LATE WINTER: FUBRUARY 15 - MARCH 21 ♦♦'�
g CRITICAL POINTS ALONG THE CHANNEL SURFACE. MOUNTAINS - MAY 15 - AUG. 15 V
FEBRUARY 1 - APRIL 15 0 Cr
IN LOOSE SOIL CONDITIONS,THE USE OF STAPLE SUMMER PIEDMONT - MAY 1 - AUG. 15 11A M
C OR STAKE LENGTHS GREATER THAN 6"(15 CM)MAY a;
BE NECESSARY TO PROPERLY ANCHOR THE BLANKETS. COASTAL PLAIN - APR. 15 - AUG. 15 FALL IS BEST FOR ALL FESCUE AND LATE WINTER FOR SWITCHGRASS AND V
NOTES: SPLITBEARD BLUESTEM. OVER SEEDING OF SWTICHGASS AND SWITCHBEARD n Z
1. INSTALLATION TO BE COMPLETED IN ACCORDANCE WITH MANUFACTURER'S SPECIFICATIONS. BLUESTEM WITH OVER-SEEDED TALL FESCUE IN FALL IS VERY EFFECTIVE. � o
ROLLED EROSION CONTROL PRODUCT MOUNTAINS - AUG. 15 - DEC. 15 t o
FALL COASTAL PLAIN AND PIEDMONT - AUG. 15 - DEC. 30 �0
SEEDING SCHEDULECID
2"-5" O
(5CM-12.5CM) (30CM) 1. CHISEL COMPACTED AREAS AND SPREAD TOPSOIL 3 INCHES DEEP m
SOIL AMENDMENTS OVER ADVERSE SOIL CONDITIONS, IF AVAILABLE.
FOLLOW RECOMMENDATIONS OF SOIL TESTS OR APPLY 2,000 LB/ACRE 2. RIP THE ENTIRE AREA TO 6 INCHES DEPTH.
(D L-� GROUND AGRICULTURAL LIMESTONE AND 750 LBS/ACRE 10-10-10 3. REMOVE ALL LOSE ROCK, ROOTS, AND OTHER OBSTRUCTIONS
FERTILIZER. LEAVING SURFACE REASONABLY SMOOTH AND UNIFORM.
6" 4. APPLY AGRICULTURAL LIME, FERTILIZER, AND UNIFORMLY MIX WITH
• (15CM)
e _ MULCH SOIL (SEE BELOW*).
APPLY 4,000 LB/ACRE STRAW. ANCHOR STRAW BY TACKING WITH ASPHALT 5. CONTINUE TILLAGE UNTIL A WELL-PULVERIZED, FIRM, REASONABLY
(7.5CM) OR NETTING. UNIFORM SEEDBED IS PREPARED.
6. SEED ON A FRESHLY PREPARED SEEDBED AND SEED LIGHTLY WITH _
0MAINTENANCE SEEDING EQUIPMENT OR CULTIPACK. �� F SS/ /''
REFERTILIZE IF GROWTH IS NOT FULLY ADEQUATE. RESEED, FERTILIZE AND 7. MULCH IMMEDIATELY AFTER SEEDING.
MULCH IMMEDIATELY FOLLOWING EROSION OR OTHER DAMAGE. 8. INSPECT ALL SEEDED AREAS AND MAKE NECESSARY RESEEDINGS �Z •a� 9�'';
WITHIN THE PLANTING SEASON, IF POSSIBLE. SHOULD AREAS BE s SEAL
NOTE OVER 60% DAMAGED, REESTABLISH ORIGINAL LIME, FERTILIZER AND - 056748 Z
IN LATE WINTER AND EARLY SPRING, OMIT SWITCHGRASS WHEN DURATION SEEDING RATES. 'sue`°••F` Q-,'co
'�•'9 ••.NG1N •''�
SLOPE INSTALLATION OF TEMPORARY COVER IS NOT TO EXTEND BEYOND JUNE. IN THE 9. CONSULT CONSERVATION INSPECTOR ON MAINTENANCE AND � ., (i •..,• E0••
PIEDMONT AND MOUNTAINS, A SMALL-STEMMED SUDANGRASS MAY BE FERTILIZATION AFTER PERMANENT COVER IS ESTABLISHED. TM ���i,��A •.R•.••�1PQ```��
CONSTRUCTION SPECIFICATIONS: SUBSTITUTED AT A RATE OF 50 LB/ACRE. * /� ROLLMAX
1. PREPARE SOIL BEFORE INSTALLING BLANKETS, INCLUDING ANY NECESSARY APPLICATION OF APPLY: 1 I� ROLLED EROSION CONTROL
AGRICULTURAL LIMESTONE - 3 TONS ACRE
LIME, FERTILIZER, AND SEED. NOTE: WHEN USING CELL-O-SEED DO NOT SEED PREPARED / _ © 06/2023
AREA. CELL-O-SEED MUST BE INSTALLED WITH PAPER SIDE DOWN. SEEDBED PREPARATION FERTILIZER - 1,000 Ib/ACRE - 10-10-10 max=
2. BEGIN AT THE TOP OF THE SLOPE BY ANCHORING THE BLANKET IN A 6" (15CM) DEEP X 6" MAINTENANCE: SUPERPHOSPHATE - 500 Ib/ACRE - 20% ANALYSIS Specification Sheet _ N N
w N oN
(15CM) WIDE TRENCH WITH APPROXIMATELY 12" (30CM) OF BLANKET EXTENDED BEYOND THE NEW SEEDLINGS SHOULD BE INSPECTED FREQUENTLY AND MULCH - 2 TONS/ACRE (5,000 Ib/ACRE FOR STEEP SLOPES) - ErONetT" S751 Erosion Control Blanket CN
-
UP-SLOPE PORTION OF THE TRENCH. ANCHOR THE BLANKET WITH A ROW OF MAINTENANCE PERFORMED AS NEEDED. IF RILLS ANG GULLIES SMALL GRAIN STRAW N o
STAPLES/STAKES APPROXIMATELY 12" (30CM) APART IN THE BOTTOM OF THE TRENCH. DEVELOP, THEY MUST BE FILLED, RE-SEEDED, AND MULCHED ANOTHER - ASPHALT EMULSION @ 400 GAL/ACRE DESCRIPTION Index Property MethodTypical
AS SOON AS POSSIBLE. DIVERSIONS MAY BE NEEDED UNTIL The short-term single net erosion control blanket shall be a machine- c� = =
BACKFILL AND COMPACT THE TRENCH AFTER STAPLING. APPLY SEED TO COMPACTED SOIL o.zsin.
AND FOLD REMAINING 12" 30CM PORTION OF BLANKET BACK OVER SEED AND COMPACTED NEW PLANTS TAKE HOLD. o Thickness ASTM D6525 z
( ) PERMANENT SEEDING FOR WETLANDS AND BUFFERS produced mat of 100%agricultural straw with a functional longevity (7mm) w
SOIL. SECURE BLANKET OVER COMPACTED SOIL WITH A ROW OF STAPLES/STAKES SPACED of up to 12 months.(NOTE:functional longevity may vary depending Resiliency ECTC Guidelines 78.8%
APPROXIMATELY 12" 30CM APART ACROSS THE WIDTH OF THE BLANKET. DAMAGE TO VEGETATION FROM DISEASE, INSECTS, TRAFFIC, SEEDING MIXTURE upon climatic conditions, soil,geographical location,and elevation). Water Absorbency ASTM D1117 301%
( ) ETC., CAN OCCUR AT ANY TIME. HERBICIDES AND REGULAR SPECIES RATE (LB/ACRE) The blanket shall be of consistent thickness with the straw evenly 9.76 oz/sy
SWITCHGRASS (CARTHAGE CULTIVAR) 3.5 distributed over the entire area of the mat.The blanket shall be
3. ROLL THE BLANKETS (A.) DOWN OR (B.) HORIZONTALLY ACROSS THE SLOPE. BLANKETS WILL MOWING MAY BE NEEDED TO CONTROL WEEDS. DUST AND Mass/Unit Area ASTMD6475 (332g/sm)
UNROLL WITH APPROPRIATE SIDE AGAINST THE SOIL SURFACE. ALL BLANKETS MUST BE SPRAYS MAY BE NEEDED TO CONTROL INSECTS. DEERTONGUE 6.0 covered on the top side with a lightweight photodegradable Swell ECTC Guidelines 15%
SECURELY FASTENED TO SOIL SURFACE BY PLACING STAPLES/ STAKES IN APPROPRIATE SWEET WOODREED 2.5 polypropylene netting having an approximate O.SO x O.SO in.(1.27 x Smolder Resistance ECTC Guidelines yes
LOCATIONS AS SHOWN IN THE STAPLE PATTERN GUIDE. WHEN USING OPTIONAL DOT SYSTEM, WEAK OR DAMAGED SPOTS MUST BE RELIMED, FERTILIZED, SOFT RUSH 2.5 1.27cm)mesh.The blanket shall be sewn together on 1.50 inch(3.81 Stiffness ASTM D1388 6.31 oz-in
STAPLES/STAKES SHOULD BE PLACED THROUGH EACH OF THE COLORED DOTS MULCHED, AND RESEEDED AS PROMPTLY AS POSSIBLE. cm)centers with degradable thread.The blanket shall be manufac- Light Penetration ASTM D6567 6.0%
CORRESPONDING TO THE APPROPRIATE STAPLE PATTERN. tured with a colored thread stitched along both outer edges(approxi- 122.4lbs/ft
4. THE EDGES OF PARALLEL BLANKETS MUST BE STAPLED WITH APPROXIMATELY 2"-5" SEEDING SCHEDULE FOR WETLANDS AND BUFFERS NURSE PLANTS mately 2-5 inches[5-12.S cm]from the edge)as an overlap guide for Tensile Strength-MD ASTM D6818 0.81kN/m)
(5CM-12.5CM) OVERLAP DEPENDING ON BLANKET TYPE. TO ENSURE PROPER SEAM 1. CHISEL COMPACTED AREAS AND SPREAD TOPSOIL 3 INCHES DEEP ONLY ADD NURSE PLANTS IF NATIVE SPECIES LISTED ABOVE ARE NOT adjacent mats. Elongation- MD ASTM D6818 36.1% o
ALIGNMENT, PLACE THE EDGE OF THE OVERLAPPING BLANKET (BLANKET BEING INSTALLED ON OVER ADVERSE SOIL CONDITIONS, IF AVAILABLE. DEVELOPING AT EXPECTED RATES. BETWEEN MAY 1 AND AUGUST 15, 79.2lbs/ft L
TOP) EVEN WITH THE COLORED SEAM STITCH ON THE PREVIOUSLY INSTALLED BLANKET. 2. RIP THE ENTIRE AREA TO 6 INCHES DEPTH. ADD 10 LB/ACRE GERMAN MILLET. PRIOR TO MAY 1 OR AFTER The 575 shall meet Type 2.0 specification requirements established by Tensile Strength TO ASTM D6818 >
the Erosion Control Technology Council (ECTC)and Federal Highway
5. CONSECUTIVE BLANKETS SPLICED DOWN THE SLOPE MUST BE PLACED END OVER END 3. REMOVE ALL LOSE ROCK, ROOTS, AND OTHER OBSTRUCTIONS AUGUST 15 ADD 40 LB/ACRE RYE (GRAIN). Administration's(FHWA) FP-03 Section 713.17 Elongation-TD ASTM D6818 26.8% of
(SHINGLE STYLE) WITH AN APPROXIMATE 3" (7.5CM) OVERLAP. STAPLE THROUGH LEAVING SURFACE REASONABLY SMOOTH AND UNIFORM. SEEDING DATES Biomass Improvement ASTM 301%
OVERLAPPED AREA, APPROXIMATELY 12" (30CM) APART ACROSS ENTIRE BLANKET WIDTH. 4. APPLY AGRICULTURAL LIME, FERTILIZER, AND UNIFORMLY MIX WITH ol w z
SOIL (SEE BELOW*) ' tall
PRODUCT MAINTENANCE . SWITCHGRASS: DECEMBER 1 - APRIL 1 0.5lbs/sgyd ' Permissible Shear
5. CONTINUE TILLAGE UNTIL A WELL-PULVERIZED, FIRM, Matrix 100%Straw Fiber
1. INSPECT ROLLED EROSION CONTROL PRODUCTS AT LEAST WEEKLY AND AFTER EACH (0.z7I<g/sm) UnvegetatedShearStress 1.SSpsf(74Pa) o 0
SIGNIFICANT (1 INCH OR GREATER) RAIN FALL EVENT REPAIR IMMEDIATELY. REASONABLY UNIFORM SEEDBED IS PREPARED. DEERTONGUE: MAY 1 - APRIL 1 Top side only,lightweight 1.Slb/1000sgft
6. SEED ON A FRESHLY PREPARED SEEDBED AND SEED LIGHTLY Netting UnvegetatedVelocity S.00fps(1.52m/s) o c�
2. GOOD CONTACT WITH THE GROUND MUST BE MAINTAINED, AND EROSION MUST NOT OCCUR WITH SEEDING EQUIPMENT OR CULTIPACK. SWEET WOODREED: DECEMBER 1 - APRIL 1 photodegradable (0.731<g/100sm) � o
BENEATH THE RECP. ANY AREAS OF THE RECP THAT ARE DAMAGED OR NOT IN CLOSE 7. MULCH IMMEDIATELY AFTER SEEDING. Thread Degradable . Design Data: ors �_ C), ,
CONTACT WITH THE GROUND SHALL BE REPAIRED AND STAPLED. 8. INSPECT ALL SEEDED AREAS AND MAKE NECESSARY RESEEDINGS SOFT RUSH: DECEMBER 1 - MAY 1, SEPTEMBER 1 -
3. CHECK FOR GENERAL SIGNS OF EROSION, INCLUDING VOIDS BENEATH THE MAT. IF VOIDS ARE NOVEMBER 1 Rolzesl Slope Gradients(5) o
APPARENT, FILL THE VOID WITH SUITABLE SOIL AND REPLACE THE EROSION CONTROL WITHIN THE PLANTING SEASON, IF POSSIBLE. SHOULD AREAS BE
OVER 60% DAMAGED, REESTABLISH ORIGINAL LIME, FERTILIZER Slope Length(L) <_3:1 3:1-2:1 >_2:1
BLANKET, FOLLOWING THE APPROPRIATE STAKING PATTERN. NOTE: NO FESCUE GRASS TO BE USED IN WETLANDS OR BUFFERS. Width 6.67ft(2.03m) 8.0ft(2.4m) 16ft(4.87m)
4. CHECK FOR DAMAGED OR LOOSE STAKES AND SECURE LOOSE PORTIONS OF THE BLANKET. AND SEEDING RATES. <<_20ft(6m) 0.029 N/A N/A
9. CONSULT CONSERVATION INSPECTOR ON MAINTENANCE AND Length 108ft(32.92m) 112ft(34.14m) 112ft(34.14m) 20-50ft 0.11 N/A N/A
5. IF EROSION OCCURS DUE TO POORLY CONTROLLED DRAINAGE, THE PROBLEM SHALL BE FIXED . ~
AND THE ERODED AREA PROTECTED. FERTILIZATION AFTER PERMANENT COVER IS ESTABLISHED Weight t 1O% 40 Ibs(18.14 1<g) 50 Ibs(22.68 I<g) 100 lbs(45.36 kg) >_50 ft(15.2 m) 0.19 N/A N/A z
6. MONITOR AND REPAIR THE RECP AS NECESSARY UNTIL GROUND COVER IS ESTABLISHED. * 100sgyd 200sgyd NTPEP Large-Scale Slope Testing W z
APPLY: Area 80 sq yd(66.9 sm) ASTM D6459-C-factor=0.012
(83.61 sm) (167.22 sm) M O
NOTES: AGRICULTURAL LIMESTONE - 3 TONS/ACRE _ 13- N N
1. INSTALLATION TO BE COMPLETED IN ACCORDANCE WITH MANUFACTURER'S SPECIFICATIONS. FERTILIZER - 750 Ib/ACRE - 10-10-10 (n 0 O J
MULCH - 2 TONS/ACRE (5000 Ib/ACRE FOR STEEP SLOPES) - Flow Depth Mannin 'sin LL W IX
,
2. IN LOOSE SOIL CONDITIONS THE USE OF STAPLE OR STAKE LENGTHS GREATER THAN 6" (15CM) g Y � W �
MAY BE NECESSARY TO PROPERLY SECURE THE BLANKETS. SMALL GRAIN STRAW <_D.50ft(0.15m) 0.055 C) W W
3. NO PLASTIC LINER IS TO BE USED IN WETLANDS OR RIPARIAN BUFFERS. TACKING METHOD - BIODEGRADABLE NETTING (NO PLASTIC NETTING) O 0 0 0
0.50-2.0 ft 0.055-0.021 IX Z
ROLLED EROSION CONTROL 2.0 ft(0.60 m) 0.021 Q Q 0
>
PRODUCT INSTALLATION 0
SEEDINGDETAILS Western Green 02019,North American Green is a registered trademark from Western Green.Certain U z z
N.T.S. NORTH 4609 E.Boonville-New Harmony Rd. products and/or applications described or illustrated herein are protected under one or more 0 0
A M E RI CAN U.S.patents.Other U.S.patents are pending,and certain foreign patents and patent
Evansville,IN 47725 applications may also exist rights also apply as indicated herein.Final
N.T.S. pp v g ppv
determination of the suitability of any Information or material for the use contemplated,and W W A/
GREEN. nagreen.com its manner of use,is the sole responsibility of the user.Printed in the US.A. : H
800-772-2040 Z J
EC_RM X_M PDS_S75_7.20 0
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ROLLED EROSION CONTROL PRODUCT SPECIFICATIONS DRAWN BY: JEH/REA
N.T.S.
CHECKED BY: LRH
APPROVED BY: LRH
DATE: 06/27/2023
SCALE: 1" = 100'
FILE NUMBER: 12549CG
SHEET:
CG501

Practice Standards and Specifications 0 Practice Standards and Specifications DEPTH MIN. 6"
� /�
6.20 downhill side with the spoil than to build diversions by other methods.Where Channel design- shape: parabolic,trapezoidal,or V-shaped rJ' SOD / O F ^�/ J E-
• ' ' • space is limited,it may be necessary to build the ridge by hauling in diking side slope: 2:1 or flatter GRASS POOL
F
T D -� material, or using a silt fence to divert the flow. Use gravel to form the 3:1 or flatter where vehicles cross i--f
diversion dike when vehicles must cross frequently(Figure 6.20b). FILTER STRIP I �-+
Grades- Either a uniform or a gradually increasing grade is preferred. C I N. 12��
Definition A temporary ridge or excavated channel or combination ridge and channel Sudden decreases in grade accumulate sediment and should be expected to
constructed across sloping land on a predetermined grade. Coarse aggregate cause overtopping. A large increase in grade may erode.
� rZ�
Purpose To protect work areas from upslope runoff,and to divert sediment-laden water 3:1 max Outlet-Design the outlet to accept flow from the diversion plus any other FILTER FABRIC TO FULLY 5 contributing areas. Divert sediment-laden runoff and release through a ���,
to appropriate traps or stable outlets. 18"min F1oti sediment-trapping device (Practice 6.60, Temporary Sediment Trap and MIN. 1 2" THICK ENCOMPASS EXTENTS OF RIP RAP Q
Practice 6.61,Sediment Basin). Flow from undisturbed areas can be dispersed AND BE TOED-IN A MINIMUM OF
Conditions Where This practice applies to construction areas where runoff can be diverted and - - by a level spreader(Practice 6.40,Level Spreader). (SEE TABLE "
disposed of properly to control erosion, sedimentation, or flood damage. �I- �; II� II I - i- �-'_ BELOW FOR 12 ON ALL SIDES. w
Practice Applies Specific locations and concontr control
(III �1111=II I-II11=Ill II Ifii _T= =II =Ii Small diversions-Where the diversion channel grade is between 0.2 and
F=E- 9'typ i cal �= 3%,a permanent vegetative cover is required. A parabolic channel and ridge RIPRAP SIZE)
•above disturbed existing slopes,and above cut or fill slopes to prevent III 1.5 feet deep and 12 feet wide may be used for diversions with flows up to 5 *MAINTENANCE*
runoff over the slope; cfs. This depth does not include freeboard or settlement. Side slopes should RIPRAP SHOULD B E INSPECTED PERIODICALLY FOR SCOUR O R x
•across unprotected slopes,as slope breaks,to reduce slope length; Figure 6.20b Temporary gravel diversion dike for vehicle crossing(modified from Va SWCC). be 3:1 or flatter,and the top of the dike must be at least 2 feet wide.
•below slopes to divert excess runoff to stabilized outlets; DISLODGED STONES. CONTROL OF WEED AND BRUSH GROWTH MAY BE
•where needed to divert sediment-laden water to sediment traps; Plan temporary diversions to function 1 year or more, or they may be Construction 1. Remove and properly dispose of all trees, brush, stumps, and other NEEDED IN SOME LOCATIONS.
S
at or near the perimeter of the construction area to keep sediment from Specifications constructed anew at the end of each day's grading operation to protect new fill. objectionable material.
•
Diversions that are to serve longer than 30 working days should be seeded and
leaving the site;and 2. Ensure that the minimum constructed cross section meets all design
mulched as soon as they are constructed to preserve dike height and reduce DEPTH OF AVG. RIPRAP
•above disturbed areas before stabilization to prevent erosion,and maintain maintenance. requirements. LOCATION LENGTH WIDTH RIPRAP DEPTH
POOL DIAMETER
acceptable working conditions. 3.Ensure that the top of the dike is not lower at any point than the design N
Where design velocities exceed 2 ft/sec,a channel liner is usually necessary to t
• to-
Temporarydiversions may also serve as sediment traps when the site has elevation plus the specified settlement. AA,,
Y P prevent erosion(Table 8.05a,Appendix 8.05). P P SKIMMER W N
been overexcavated on a flat grade;the may also be used in conjunction 5' 5' 1 2" 6" 1 2"Y Y J 4.Provide sufficient room around diversions to permit machine regrading and BASIN #1 '� _
with a sediment fence. P � g Z
Temporary diversions may serve as in-place sediment traps if overexcavated 1 cleanout. 2 �_
to 2 feet and laced on a nearlyflat de. The dike serves to divert water as rn
the stage increases. A combination silt fence and channel in which fill from SKIMMER V a
It is important that diversions are properly designed, constructed and g 5.Vegetate the ridge immediately after construction,unless it will remain in 1 0' 1 0' 24" 6" 1 2" Cr
PlanningP P P Y BASIN #1 0
the channel is used to stabilize the fence can trap sediment and divert runoff lace less than 30 working days. o
maintained since they concentrate water flow and increase erosion potential P g Y
Considerations simultaneously. oM 5
(Figure 6.20a). Particular care must be taken in planning diversion grades. 2 o
Too much slope can result in erosive velocity in the diversion channel or at the SKIMMER LL
P Y Wherever feasible,build and stabilize diversions and outlets before initiating 7.5' 7.5' 1$" 6" 12"
outlet.A change of slope from steeper grade to flatter may cause deposition to g M a I n to n a n Ce Inspect temporary diversions once a week and after every rainfall.Immediately BASIN #1 � z
other land-disturbing activities. remove sediment from the flow area and repair the diversion ridge. Carefully >
occur. The deposition reduces carrying capacity,and may cause overtopping check outlets and make timely repairs as needed. When the area protected is ca 0
and failure. Frequent inspection and timely maintenance are essential to the SKIMMER
permanently stabilized,remove the ridge and the channel to blend with the 5' S' 12" 6" 12" o proper functioning of diversions. Design Criteria Drainage area-5 acres or less. natural ground level and appropriately stabilize it. BASIN #1 4J
Sufficient area must be available to construct and properly maintain diversions. Capacity-peak runoff from 10-year storm. O
It is usually less costly to excavate a channel and form a ridge or dike on the Surface Stabilization
Ica
CIE
Velocity-See Table 8.05a, Permissible Velocities for Erosion Protection, References f RIP RAP PLUNGE POOL r�l
Appendix 8.05. 6.10,Temporary Seeding W
Compacted soil 2 6.11,Permanent Seeding SCALE: N.T.S.
min )--I Ridge design- side slope: 2:1 or flatter 6.14,Mulching
3:1 or flatter at points where cross
top width: 2 ft minimum Outlet Protection
:�•• F XONN
freeboard: 0.3 ft minimum 6.40,Level Spreader
18' min ° 6.41,Outlet Stabilization Structure
settlement: 10/°of total fill height minimum
-- � -I(III�I•I,� I (III-�• III•-III::':.��II � �r�
-III I� III-1--III��-nl III- - III--t �Tll1=1111-
<--- 6'typical ---------
figure 6.20a Temporary earthen diversion dike.
6.20.1 6.20.2 6.20.3 `r,��`••�• ...•,• A®
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SEAL =_ _
056748
TEMPORARY DIVERSIONS
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Practice Standards and Specifications Practice Standards and Specifications Practice Standards and Specifications
6.41 Tail-water depth-Determine the tail-water depth immediately below the Construction 1. Ensure that the subgrade for the filter and riprap follows the required lines
OUTLET STABILIZATIONculvert or pipe outlet based on the design discharge. The ratio of tail-water and grades shown in the plan. Compact any fill required in the subgrade to the
Po Well-defineet to d
Channel
Specifications densityof the undisturbed material. Low areas in the subgrade on
depth to pipe diameter must be determined in order to select the appropriate No Well-defined Channel g �
04 riprap apron or plunge pool design method. A undisturbed soil may also be filled by increasing the riprap thickness.
r Minimum 2. The riprap and gravel filter must conform to the specified grading limits
A structure designed to control erosion at the outlet of a channel or conduit. o v Plunge Pools-Two plunge pool methods are presented in Appendix 8.06, d Tal Iwate r 0.5 do
Definition » shown on the plans.
the USDA Plunge Pool Design at Submerged Pipe Spillway Outlets,and the
USDA Riprap Lined Plunge Pool for Cantilevered Outlet. Software from the r ^^ - -� 3d0 A ___ - A 3. Filter cloth,when used,must meet design requirements and be properly
To prevent erosion at the outlet of a channel or conduit b reducing the velocity Federal Highway Administration can be downloaded at http://www.fhwa.dot. protected from punching or tearing during installation. Repair any damage by
Purpose P Y g ty g Y he - _ I=(�= do removing the riprap and placing another piece of filter cloth over the damaged
of flow and dissipating energy. gov/engineering/hydraulics/software.efm. Excel spreadsheets for the USDA _ _ _ -i(�II=11I I �- --- _, (n
methods are available through the Land Quality web-site at http://www.dlr. '',I �- 11- I - area. All connecting joints should overlap so the tap layer is above the Z
enr.state.nc.us/pages/links.htm. 11117=7T����I III- -11jI( 1=111 h-TI downstream layer a minimum of 1 foot. If the damage is extensive,replace O
Conditions Where This practice applies where the discharge velocity of a pipe,box culvert, �IIII-�I--�---I-t-l1� -� ��{ �I- I 1�1-11�1- the entire filter cloth.
diversion, open channel, or other water conveyance structure exceeds the Figure 6.41 a T plunge p =I I I I t=1 11�I I��I I I�-I!i I I-J11 I C-i I I I 1 I I II- I I ,=, T, i t 4. Riprap may be laced b equipment,but take care to avoid dams n the
p y g Typical lun e pool III j
Practice Applies permissible velocity of the receiving channel or disposal area. design showing variable dimensions. Plan P P Y P Yg W
filter. �
? Maximum La 5. The minimum thickness of the riprap should be 1.5 times the maximum
Planning The outlets of channels,conduits,and other structures are points of high erosion p=+ I T" Z 1 v T a i I w ate r a 0.5 do7 stone diameter.
potential because they frequently carry flows at velocities that exceed the zz A 6. Riprap may be field stone or rough quarry stone. It should be hard, � �
Considerations t Z, 1 �� =1I P P Y g q ' 1--
allowable limit for the area downstream. To prevent scour and undermining, 4 6 1'- angular,hi 1 weather-resistant and well graded. �
Ln do _r.�. I(I�j11 d Illl= highly g W Z
an outlet stabilization structure is needed to absorb the impact of the flow and _I ,_ "'1E,11 0 W
reduce the velocity to non erosive levels. A riprap lined apron is the most L r ' 7. Construct the apron on zero grade with no overfill at the end. Make the M
L. Section AA Filter Notes top of the riprap at the downstream end level with the receiving area or slightly �
commonly used practice for this purpose because of its relatively low cost _ - blanket O
below it.
and ease of installation. The riprap apron should be extended downstream _ W U
_ _ _ _ _ _ _ 1. La is the length of the riprap
until stable conditions are reached even though this may exceed the length _J I I I_ -�- II- 8. Ensure that the apron is properly aligned with the receiving stream
11 ES IIII I I III III=1 � 11=1i I I�II�JJ1�I ( 11 I apron' and preferably straight throughout its length. If a curve is needed to fit site OW O
calculated for design velocity control. - III Pipe Outlet to Well-defined P Y g � W
�= II T -���, I Channel 2. d=1.5 times the maximum conditions,place it in the upper section of the apron. V) C)
Riprap-stilling basins or plunge pools reduce flow velocity rapidly. They =1111 =�1111-�IIIIIII�-- IIII�IIII= II- I I11=111 it stone diameter but not less _
W, 9. Immediately after construction,stabilize all disturbed areas with vegetation Z
should be considered in lieu of aprons where pipe outlets are cantilevered t� than 6". (Practices 6.10,Temporary Seeding,and 6.11,Permanent Seeding).
or where high flows would require excessive apron length(Figure 6.41a). Figure 6.41b Stage showing maximum and:minimum taitwatercondition. 3. In a Well-defined channel ex-
Consider other energy dissipaters such as concrete impact basins or paved Z
outlet structures where site conditions warrant. tend the apron up the channel
banks to an elevation of 6" Maintenance Inspect riprap outlet structures weekly and after significant(1/2 inch or greater)
MaterialsEnsure that riprap consists of a well-graded mixture of stone. A ____ A above the maximum tai(water rainfall events to see if any erosion around or below the riprap has taken place,
Alternative methods of energy dissipation can be found in Hydraulic Design Larger stone should predominate,with sufficient smaller sizes to fill the voids
of Energy Dissipaters for Culverts and Channels, Hydraulic Engineering g P depth orto the top of the bank, or if stones have been dislodged. Immediately make all needed repairs to
Circular No. 14, U.S. Department of Transportation, Federal Highway Riprap Aprons size-The apron length and width can be determined between the stones.The diameter of the largest stone size should be no greater ± Whichever Is less. prevent further damage.
according to the tail-water condition. If the water conveyance structure than 1.5 times the d size. --
Administration. g y so
discharges directly into a well-defined channel,extend the apron across the 4. A filter blanket 11 filter fabric References Surface6.10,Temporary
Seeding Z
The installation of a culvert in a stream is subject to the conditions of a U.S. channel bottom and up the channel banks to an elevation of 0.5 foot above the stone diameter.or to the top of the bank,whichever is less(Figure the riprap and soil foundation. 6.11,Permanent Seeding w Z
Army Corps of Engineers 404 Permit and a N.C.Division of Water Quality maximum tail-water depth Plan e
� 6.15,Riprap e
401 Certification. These permit conditions may not allow the use of a riprap 6.41c). Stone quality Select stone for riprap from field stone or quarry stone. The
apron,and may require that the bottom of the culvert be buried below the stone should be hard, angular, and highly weather-resistant. The specific Appendix = O N N
natural stream bed elevation.Apre-formed scour pool or plunge pool should be Determine the maximum allowable velocity for the receiving stream, and gravity of the individual stones should be at least 2.5. 8.06,Design of Riprap Outlet Protection N O J
considered in these situations. Plunge pool designs in streams should not use a design the riprap apron to reduce flow to this velocity before flow leaves J
cantilevered outlet because it would pose a barrier to migration of aquatic life the apron. Calculate the apron length for velocity control or use the length Filter-Install a filter to prevent soil movement through the openings in La Rice,C.E.,Kadavy,K.0 "Riprap Design for Pipe Spillways at w W Q
through the culvert. Reducing the outlet velocity may require a combination required to meet stable conditions downstream,whichever is greater. the riprap. The filter should consist of a graded gravel layer or a synthetic -1<TW/D<0.7" Presented at the December 13,1994 International Winter Y \ w
of techniques,including a culvert with a flat bottom,a downstream cross vane filter cloth. Design filter blankets by the method described in Practice 6.15, Meeting,American Society of Agricultural Engineers,Paper Number / / w
Grade-Ensure that the apron has zero grade. There should be no overfall 942541. U W
to create tail-water at the pipe outlet,and/or a preformed scour pool. P � Riprap. ,;a.a: 0
at the end of the apron;that is,the elevation of the top of the riprap at the I '<'T: ii Ad-Ii I= O 0 0
downstream end should be the same as the elevation of the bottom of the ( Rice,C.E.and K.C.Kadavy.1994,Plunge Pool Design at Submerged Pipe Z
Design Criteria Capacity-10-year, peak runoff or the design discharge of the water receiving channel or the adjacent ground if there is no channel. IIII�I(I I Section AA I jllii (INS Spillway Outlets. Transactions of the ASAE 37(4):1167-1173. J
conveyance structure,whichever is greater. O
Alignment The apron should be straight throughout its entire length,but if Filter FHWA. 1983. Hydralic Design of Energy Dissipaters for Culverts and I
a curve is necessary to align the apron with the receiving stream,locate the blanket Channels. Hydraulic Engineering Circular Number 14. F_
curve in the upstream section of riprap. Figure 6.41c Riprap outlet protection(modified from Va SWCC/.
U of Z Z
Q 0 O
Re,6/06 6.411 Q U
6.41.2 Re,6107 Rc 6/06 6.41.3 6.41.4 Re,6106 Re,6/06 6.41.5 tyj
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U iN Z_
b
O Q
OUTLET STABILIZATION STRUCTURE of
a-
DRAWN BY: JEH/REA
N.T.S.
CHECKED BY: LRH
APPROVED BY: LRH
DATE: 06/27/2023
SCALE: 1" = 100'
FILE NUMBER: 12549CG
SHEET:
CG502