SW4220501_Plansheet - SCM Detail_20220510

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WATAUGA COUNTY
VALLE CRUCIS SCHOOL
BROADSTONE ROAD
VALLE CRUCIS, NC
SCO #
CODE:
ITEM:
10
C L A R K N E X S E N
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28801
828.232.0608
CLARK NEXSEN LICENSE NUMBER:
C-1028
CONSULTANT
C'4D Civil
Design
Concepts, PA
ASHEVILLE OFFICE
168 PATTON AVENUE
ASHEVILLE, NC 28805
PHONE [phone]
FAX [phone]
NCBELS LICENSE H: C-2184
WKFU iA I L SEAL
PROFESSIONAL SEAL
04/08/2022
WAYNESVILLE OFFICE
52 WALNUT STREET - SUITE 9
WAYNESVILLE, NC 28786
PHONE [phone]
FAX [phone]
www.eivildesignconcepts.com
PERMIT DRAWINGS
REVISIONS
1 01/13/2022 DESIGN DEVELOPMENT
2 04/01/2022 EC / STORM / NCDOT SUBMITTAL
KEY PLAN
SITE DETAILS
C921
DESIGN: GRH
DRAWN: SAK
REVIEW: GRH
CN 6832

1 2 3 4 5 6
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SLOPE INSTALLATION
1. PREPARE SOIL BEFORE INSTALLING BLANKETS, INCLUDING ANY NECESSARY APPLICATION OF LIME, FERTILIZER, AND SEED.
NOTE: WHEN USING CELL-O-SEED DO NOT SEED PREPARED AREA. CELL-O-SEED MUST BE INSTALLED WITH PAPER SIDE DOWN.
2. BEGIN AT THE TOP OF THE SLOPE BY ANCHORING THE BLANKET IN A 6" (15cm) DEEP X 6" (15cm) WIDE TRENCH
WITH APPROXIMATELY 12" (30cm) OF BLANKET EXTENDED BEYOND THE UP -SLOPE PORTION OF THE TRENCH. ANCHOR THE
BLANKET WITH A ROW OF STAPLES/STAKES APPROXIMATELY 12" (30cm) APART IN THE BOTTOM OF THE TRENCH.
BACKFILL AND COMPACT THE TRENCH AFTER STAPLING. APPLY SEED TO COMPACTED SOIL AND FOLD REMAINING 12" (30cm)
PORTION OF BLANKET BACK OVER SEED AND COMPACTED SOIL. SECURE BLANKET OVER COMPACTED SOIL WITH A ROW OF
STAPLES STAKES SPACED APPROXIMATELY 12" 30cm APART ACROSS THE WIDTH OF THE BLANKET.
3. ROLL THE BLANKETS (A.) DOWN OR (B.) HORIZONTALLY ACROSS THE SLOPE. BLANKETS WILL UNROLL WITH APPROPRIATE SIDE
AGAINST THE SOIL SURFACE. ALL BLANKETS MUST BE SECURELY FASTENED TO SOIL SURFACE BY PLACING STAPLES/STAKES
IN APPROPRIATE LOCATIONS AS SHOWN IN THE STAPLE PATTERN GUIDE. WHEN USING OPTIONAL DOT SYSTEM"", STAPLES/STAKES
SHOULD BE PLACED THROUGH EACH OF THE COLORED DOTS CORRESPONDING TO THE APPROPRIATE STAPLE PATTERN.
4. THE EDGES OF PARALLEL BLANKETS MUST BE STAPLED WITH APPROXIMATELY 2"-5" (5cm-12.5cm) OVERLAP DEPENDING
ON BLANKET TYPE. TO ENSURE PROPER SEAM ALIGNMENT, PLACE THE EDGE OF THE OVERLAPPING BLANKET (BLANKET BEING
INSTALLED ON TOP) EVEN WITH THE COLORED SEAM STITCH -ON THE PREVIOUSLY INSTALLED BLANKET.
5. CONSECUTIVE BLANKETS SPLICED DOWN THE SLOPE MUST BE PLACED END OVER END (SHINGLE STYLE) WITH AN APPROXIMATE
3" (7.5cm) OVERLAP. STAPLE THROUGH OVERLAPPED AREA, APPROXIMATELY 12" (30cm) APART ACROSS ENTIRE
BLANKET WIDTH.
NOTE:
*IN LOOSE SOIL CONDITIONS, THE USE OF STAPLE OR STAKE LENGTHS GREATER THAN 6" (15cm) MAY BE NECESSARY TO
PROPERLY SECURE THE BLANKETS.
EROSION CONTROL SLOPE MATTING INSTALLATION
NOT TO SCALE
CHANNEL INSTALLATION
12"
1. PREPARE SOIL BEFORE INSTALLING BLANKETS, INCLUDING ANY NECESSARY APPLICATION OF LIME, FERTILIZER, AND SEED.
NOTE: WHEN USING CELL-O-SEED DO NOT SEED PREPARED AREA. CELL-O-SEED MUST BE INSTALLED WITH PAPER SIDE DOWN,
2. BEGIN AT THE TOP OF THE CHANNEL BY ANCHORING THE BLANKET IN A 6" (15cm) DEEP X 6" (15cm) WIDE TRENCH WITH
APPROXIMATELY 12" (30cm) OF BLANKET EXTENDED BEYOND THE UP -SLOPE PORTION OF THE TRENCH. ANCHOR THE BLANKET
WITH A ROW OF STAPLES/STAKES APPROXIMATELY 12" (30cm) APART IN THE BOTTOM OF THE TRENCH. BACKFILL AND
COMPACT THE TRENCH AFTER STAPLING. APPLY SEED TO COMPACTED SOIL AND FOLD REMAINING 12" (30cm) PORTION OF
BLANKET BACK OVER SEED AND COMPACTED SOIL. SECURE BLANKET OVER COMPACTED SOIL WITH A ROW OF STAPLES/STAKES
SPACED APPROXIMATELY 12" (30cm) APART ACROSS THE WIDTH OF THE BLANKET.
3. ROLL CENTER BLANKET IN DIRECTION OF WATER FLOW IN BOTTOM OF CHANNEL. BLANKETS WILL UNROLL WITH APPROPRIATE
SIDE AGAINST THE SOIL SURFACE. ALL BLANKETS MUST BE SECURELY FASTENED TO SOIL SURFACE BY PLACING
STAPLES/STAKES IN APPROPRIATE LOCATIONS AS SHOWN IN THE STAPLE PATTERN GUIDE. WHEN USING OPTIONAL DOT SYSTEM
STAPLES/STAKES SHOULD BE PLACED THROUGH EACH OF THE COLORED DOTS CORRESPONDING TO THE APPROPRIATE STAPLE
PATTERN.
4. PLACE CONSECUTIVE BLANKETS END OVER END (SHINGLE STYLE) WITH A 4"-6" (10cm-15cm) OVERLAP. USE A DOUBLE ROW
OF STAPLES STAGGERED 4" (10cm) APART AND 4" (10cm) ON CENTER TO SECURE BLANKETS.
5. FULL LENGTH EDGE OF BLANKETS AT TOP OF SIDE SLOPES MUST BE ANCHORED WITH A ROW OF STAPLES/STAKES
APPROXIMATELY 12" (30cm) APART IN A 6" (15cm) DEEP X 6" (15cm) WIDE TRENCH. BACKFILL AND COMPACT THE TRENCH
AFTER STAPLING.
6. ADJACENT BLANKETS MUST BE OVERLAPPED APPROXIMATELY 2"-5" (5cm-12.5cm) (DEPENDING ON BLANKET TYPE) AND
STAPLED. TO ENSURE PROPER SEAM ALIGNMENT, PLACE THE EDGE OF THE OVERLAPPING BLANKET (BLANKET BEING INSTALLED
ON TOP) EVEN WITH THE COLORED SEAM STITCH ON THE BLANKET BEING OVERLAPPED
7. IN HIGH FLOW CHANNEL APPLICATIONS, A STAPLE CHECK SLOT IS RECOMMENDED AT 30 TO 40 FOOT (9m-12m) INTERVALS.
USE A DOUBLE ROW OF STAPLES STAGGERED 4" (10cm) APART AND 4" (10cm) ON CENTER OVER ENTIRE WIDTH OF THE
CHANNEL.
8. THE TERMINAL END OF THE BLANKETS MUST BE ANCHORED WITH A ROW OF STAPLES/STAKES APPROXIMATELY 12" (30cm)
APART IN A 6" (15cm) DEEP X 6" (15cm) WIDE TRENCH. BACKFILL AND COMPACT THE TRENCH AFTER STAPLING.
NOTE:
CRITICAL POINTS * HORIZONTAL STAPLE SPACING SHOULD BE ALTERED IF
A. OVERLAPS AND SEAMS NECESSARY TO ALLOW STAPLES TO SECURE THE CRITICAL
B. PROJECTED WATER LINE POINTS ALONG THE CHANNEL SURFACE.
C. CHANNEL BOTTOM/SIDE
SLOPE VERTICES **IN LOOSE SOIL CONDITIONS, THE USE OF STAPLE OR
A A� STAKE LENGTHS GREATER THAN 6" (15 cm) MAY BE
B B NECESSARY TO PROPERLY ANCHOR THE BLANKETS.
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CHANNEL LINER INSTALLATION
NOT TO SCALE
CONSTRUCTION SEQUENCE
1. CONTACT THE DEMLR WINSTON-SALEM REGIONAL OFFICE AT LEAST 48 HOURS PRIOR TO
COMMENCING THE LAND -DISTURBING ACTIVITY. THE CONTACT NUMBER IS [phone].
2. EROSION AND SEDIMENT CONTROL (E&SC) PERMIT AND CERTIFICATION OF COVERAGE
(COC) MUST BE OBTAINED BEFORE AND LAND DISTURBING ACTIVITIES OCCUR.
3. NO WORK SHALL OCCUR IN FLOWING WATER.
4. THE BOUNDARY OF ALL WETLAND AREAS ARE TO BE MARKED. DISTURBANCE WITHIN THE
WETLANDS IS PROHIBITED UNLESS NOTED ON THE PERMITTED WETLAND REMOVAL PLANS.
5. INSTALL SITE CONSTRUCTION ENTRANCE, STONE STAGING, AND MOBILIZATION AREA.
6. INSTALL ALL PERIMETER EROSION CONTROL MEASURES AS REQUIRED BY THE APPROVED
PLANS, INCLUDING SILT FENCES, BARRIERS AND DIVERSION DITCHES AS NEEDED.
7. INSTALL THE PHASE 1 SEDIMENT TRAP. NOTE, SEDIMENT TRAP WILL BE MODIFIED
THROUGHOUT THE VARIOUS PHASES OF THE EROSION AND SEDIMENT CONTROL PLAN AS
FILL IS BROUGHT TO THE SITE.
8. CLEARING AND GRUBBING ONLY NEEDED FOR MINIMUM DESIGN.
9. STABILIZE BANKS AS EARLY AS POSSIBLE.
10. PROCEED WITH IMPORTING OF FILL, GRADING, CLEARING AND GRUBBING.
11. CONSTRUCT PROPOSED STORM DRAINAGE SYSTEM.
12. APPLY TEMPORARY AND PERMANENT SEEDING, RIP RAP AND STABILIZATION MEASURES.
13. ALL BASINS SHALL BE MARKED WITH PERMANENT SIGNAGE THAT CORRESPONDS TO THE
BASIN LABELS IN THE APPROVED PLAN.
14. SILT FENCE OUTLETS SHALL BE MARKED WITH SIGNAGE (SUCH AS PAINT ON THE
ADJACENT SILT FENCE) THAT CORRESPONDS TO THE SILT FENCE OUTLET LABELS IN THE
APPROVED PLAN.
15. THE CURRENT VERSION OF THE DEMLR MONITORING FORM IS TO BE USED FOR SELF
INSPECTION OF THIS PROJECT.
16. PERIMETER MEASURES MUST BE LEFT IN PLACE UNTIL ALL UPLAND AREAS ARE
PERMANENTLY STABILIZED. AFTER SITE IS PERMANENTLY STABILIZED, REMOVE ALL
TEMPORARY EROSION CONTROL MEASURES AND PROVIDE PERMANENT SEEDING WHERE
TEMPORARY MEASURES HAVE BEEN REMOVED AND GROUND COVER IS NOT ADEQUATE.
SEDIMENT BASINS MAY NOT BE REMOVED OR CONVERTED TO PERMANENT BMPS UNTIL
ALL UPLAND AREAS ARE PERMANENTLY STABILIZED. ALL EROSIONS CONTROL MEASURES
INCLUDING SEDIMENT BASINS MUST BE REMOVED. IF DEWATERING IS NECESSARY TO
ABANDON SEDIMENT BASINS, USE PUMP AND DEWATERING BAG. SEE C933 FOR DETAILS.
17. PER NPDES REQUIREMENTS, A RAIN GAUGE, SELF -INSPECTIONS RECORDS, PERMIT,
CERTIFICATE OF COVERAGE, AND S&E PLAN ARE REQUIRED TO BE MAINTAINED ON SITE
AND ACCESSIBLE DURING INSPECTION. IT IS RECOMMENDED THAT THESE ITEMS BE PLACED
IN A PERMITS BOX AT THE BEGINNING OR ENTRANCE OF PROJECT.
18. THE CONTRACTOR SHALL CONDUCT SELF -INSPECTIONS OF THE EROSION AND SEDIMENT
CONTROL MEASURES AND COMPLETE THE FOLLOWING COMBINED SELF -INSPECTION FORM
FOUND ON THE DEMLR WEBSITE. HTTPS: //FILES.NC.GOV/NCDEQ/ENERGY%20MINERAL
%20AND%20LAND%20RESOURCES/STORMWATER/NPDES%20GENERAL%20PERMITS/DEMLR
-CSW-MONITORING-FORM-REV-AUGUST-8-2019.PDF. TWELVE MONTHS OF COMPLETE
INSPECTION FORMS SHALL BE KEPT ON -SITE AND AVAILABLE FOR INSPECTION AT ALL
TIMES. IT IS RECOMMENDED A COPY BE KEPT IN A PERMITS BOX.
19. SELF INSPECTIONS FOR EROSION AND SEDIMENTATION CONTROL MEASURES ARE TO BE
PERFORMED AT LEAST ONCE EVERY SEVEN CALENDAR DAYS AND WITHIN 24 HOURS OF
EVERY RAIN EVENT OF GREATER THAN 1 INCH. ANY NEEDED REPAIRS SHALL BE MADE
IMMEDIATELY TO MAINTAIN MEASURES AS DESIGNED. ALL ESC MEASURES SHALL BE
MAINTAINED AS SPECIFIED IN THE CONSTRUCTION DETAILS ON THIS PLAN. A RAIN GAUGE
SHALL BE INSTALLED AT THE PROJECT SITE FOR MONITORING.
20. PERMANENT GROUND COVER SHALL BE ESTABLISHED IN 90 CALENDAR DAYS. HOWEVER,
NPDES GROUNDCOVER REQUIREMENTS TAKE PRECEDENCE.
21. ALL BARE SOILS ARE TO BE STABILIZED UNDER CONDITIONS OUTLINED IN THE CURRENT
NPDES PERMIT OR, IF IT A CRITICAL AREA, BY THE END OF THE DAY.
22. TREES OUTSIDE THE LIMITS OF DISTURBANCE MAY NOT BE REMOVED SO AS TO ALLOW
ADDITIONAL SUNLIGHT TO HIT THE SOLAR PANELS.
23. REMAINING MEASURES MUST BE REMOVED AND RESULTING BARE AREAS STABILIZED
BEFORE PERMIT CAN BE CLOSED.
24. WHEN THE PROJECT IS COMPLETE, THE PERMITTEE SHALL CONTACT DEMLR TO CLOSE OUT
THE E&SC PLAN. AFTER DEMLR INFORMS THE PERMITTEE OF THE PROJECT CLOSE
OUT, VIA INSPECTION REPORT, THE PERMITTEE SHALL VISITDEQ.NC.GOV/NCGO1 TO
SUBMIT AN ELECTRONIC NOTICE OF TERMINATION (E-NOT). A $100 ANNUAL GENERAL
PERMIT FEE WILL BE CHARGED UNTIL THE E-NOT HAS BEEN FILLED OUT.
MAINTENANCE INSPECTIONS SHALL BE PERFORMED WEEKLY AND AFTER EACH RAINFALL. ALL
REPAIRS NECESSARY SHOULD BE MADE IMMEDIATELY AND IN STRICT ACCORDANCE WITH NCDEQ
STANDARDS AND NPDES PERMIT.
NCDEQ EROSION CONTROL NOTES
GENERAL: ALL EROSION CONTROL MEASURES ARE TO BE PERFORMED IN STRICT ACCORDANCE
WITH REQUIREMENTS OF NCDEQ. THE FOLLOWING CONSTRUCTION SEQUENCE SHALL BE COMPLIED
WITH FOR ALL WORK.
1. OBTAIN PROVISIONAL PERMIT.
2. INSTALL ALL EROSION CONTROL MEASURES AS REQUIRED.
3. OBTAIN GRADING PERMIT THROUGH ON -SITE INSPECTION BY A REPRESENTATIVE OF NCDEQ.
4. PROCEED WITH GRADING, CLEARING, AND GRUBBING.
5. SEED AND MULCH DENUDED AREA WITHIN EITHER 7 CALENDAR DAYS (SLOPES GREATER THAN 3:1)
OR 14 CALENDAR DAYS (3:1 OR FLATTER). AFTER FINISHED GRADE ARE ESTABLISHED, TEMPORARY
SEEDING AND SOIL AMENDMENTS SHALL BE PLACED ON A PREPARED SEEDBED AT THE FOLLOWING
RATES PER ACRE.
LIME 2,000 LBS
FERTILIZER (10-10-10) 1,000 LBS
STRAW MULCH 4,000 LBS
FOR LATE WINTER/EARLY SPRING SEEDING ADD TO THE ABOVE:
RYE GRAIN 120 LBS
SWITCHGRASS 50 LBS (OMIT IF COVER IS NOT TO EXTEND BEYOND JUNE)
FOR SUMMER SEEDING ADD:
GERMAN MILLET 40 LBS
FOR FALL ADD:
RYE GRAIN 120 LBS
IF HYDROSEEDING IS USED, WOOD CELLULOSE MAY BE SUBSTITUTED FOR STRAW MULCH AT THE
RATE OF 1,000 LBS PER ACRE.
6. MAINTAIN SOIL EROSION CONTROL MEASURES UNTIL PERMANENT GROUND COVER IS ESTABLISHED.
7. REMOVE SOIL EROSION CONTROL MEASURES AND STABILIZE THESE AREA.
8. REQUEST FINAL APPROVAL BY NCDEQ.
1) GROUND STABILIZATION
SITE AREA DESCRIPTION
STABILIZATION
STABILIZATION TIME
TIME FRAME
FRAME EXCEPTIONS
PERIMETER DIKES, SWALES,
7 DAYS
NONE
DITCHES, AND SLOPES
HIGH QUALITY WATER (HQW) ZONES
7 DAYS
NONE
SLOPES GREATER THAN 3:1
7 DAYS
IF SLOPES ARE 10' OR
LESS IN LENGTH AND ARE
NOT STEEPER THAN 2:1,
14 DAYS ARE ALLOWED
SLOPES 3:1 OR FLATTER
14 DAYS
7-DAYS FOR SLOPES
GREATER THAT 50' IN LENGTH
ALL OTHER AREAS WITH
14 DAYS
NONE (EXCEPT FOR
SLOPES FLATTER THAN 4:1
PERIMETERS AND
HQW ZONES)
*EXTENSIONS OF TIME MAY BE APPROVED BY THE PERMITTING AUTHORITY BASED ON
WEATHER OR OTHER SITE -SPECIFIC CONDITIONS THAT MAKE COMPLIANCE IMPRACTICABLE.
(SECTION II.B(2)(B))
2) BUILDING WASTE HANDLING
• NO PAINT OR LIQUID WASTE IN STREAM OR STORM DRAINS.
• DEDICATED AREAS FOR DEMOLITION, CONSTRUCTION AND OTHER
WASTES MUST BE LOCATED 50' FROM STORM DRAINS AND
STREAMS UNLESS NO REASONABLE ALTERNATIVES AVAILABLE.
• EARTHEN -MATERIAL STOCKPILES MUST BE LOCATED 50' FROM
STORM DRAINS AND STREAMS UNLESS NO REASONABLE
ALTERNATIVES AVAILABLE.
• CONCRETE MATERIALS MUST BE CONTROLLED TO AVOID CONTACT
WITH SURFACE WATERS, WETLANDS, OR BUFFERS.
31 DISCHARGES TO FEDERALLY -LISTED WATERS
• REQUIREMENTS ARE THE SAME AS IN PREVIOUS PERMIT.
• THE PERMIT ALLOWS REDUCTION FROM THE 20 ACRE MINIMUM IF
THE DIRECTOR OF DWQ DETERMINES THAT OTHER BMPS PROVIDE
EQUIVALENT PROTECTION.
4) SELF -INSPECTION REQUIREMENTS
• SAME WEEKLY INSPECTION REQUIREMENTS.
• SAME RAIN GAUGE & INSPECTIONS AFTER 0.5" RAIN EVENT.
• INSPECTIONS ARE ONLY REQUIRED DURING "NORMAL BUSINESS
HOURS."
• RECORDS MUST BE KEPT FOR 3 YEARS AND AVAILABLE ON -SITE
DURING BUSINESS HOURS UNLESS A SITE -SPECIFIC EXEMPTION IS
APPROVED.
• RECORDS MUST BE KEPT FOR 3 YEARS AND AVAILABLE UPON
REQUEST.
• ELECTRONICALLY -AVAILABLE RECORDS MAY BE SUBSTITUTED
UNDER CERTAIN CONDITIONS.
• ALL EROSION CONTROL MEASURES SHALL BE INSPECTED AND
CONDITIONS RECORDED ON NCDEQ SELF -INSPECTION AND
SELF -MONITORING COMBINED FORM LOCATED AT
HTTPS: //DEQ.NC.GOV/ABOUT/DIVISIONS/
ENERGY-MINERAL-LAND-RESOURCES/EROSION-SEDIMENT-CONTROL/FORMS
51 IMPLEMENTATION OF NEW PERMIT CONDITIONS
• PROJECTS PERMITTED UNDER THE PREVIOUS PERMIT CAN CONTINUE
TO FOLLOW THE PREVIOUSLY -PERMITTED CONDITIONS.
• COMPLETE APPLICATIONS RECEIVED PRIOR TO AUGUST 3, 2011 CAN
FOLLOW CONDITIONS OF APPROVED APPLICATION.
• APPLICATIONS RECEIVED AFTER AUGUST 2, 2011 MUST COMPLY
WITH NEW PERMIT CONDITIONS.
6) CONDITIONS IN EROSION & SEDIMENTATION
CONTROLPLANS
• DESIGNATION ON THE PLANS WHERE 7 AND 14-DAY GROUND
STABILIZATION REQUIREMENTS ON THE NPDES PERMIT APPLY.
• DESIGNATION ON THE PLANS WHERE BASINS THAT COMPLY WITH
THE SURFACE -WITHDRAWAL REQUIREMENTS OF THE NPDES PERMIT
ARE LOCATED.
7) SEDIMENT BASINS
• OUTLET STRUCTURES MUST WITHDRAW FROM BASIN SURFACE
UNLESS DRAINAGE AREA IS LESS THAN 1 ACRE.
• USE ONLY DWQ-APPROVED FLOCCULANTS.
PERMANENT SEEDING MEASURES
GENERAL EROSION CONTROL NOTES
1. ALL GRADING AND SOIL EROSION CONTROL MEASURES ON THIS SITE MUST BE AUTHORIZED
BY PERMITS ISSUED BY NCDEQ. ALL SITEWORK SHALL BE IN ACCORDANCE WITH ALL
LOCAL, STATE, AND NATIONAL REGULATORY STANDARDS AND ALL REQUIREMENTS IN THE
PROJECT TECHNICAL SPECIFICATIONS.
2. CONTRACTOR TO VERIFY WITH ENGINEER THAT THE REQUIRED GRADING, EROSION CONTROL,
LAND DISTURBANCE, AND ASSOCIATED NON -GRADING PERMITS HAVE BEEN OBTAINED PRIOR
TO BEGINNING CONSTRUCTION.
3. ALL CONSTRUCTION SHALL BE UNDER THE INSPECTION OF THE ENGINEER, THE OWNER, AND
NCDEQ. THE CONTRACTOR SHALL NOTIFY THE ENGINEER 72 HOURS PRIOR TO BEGINNING
WORK. ANY WORK COVERED PRIOR TO ENGINEER'S INSPECTION IS SUBJECT TO UNCOVERING
AND BACKFILLING AT THE CONTRACTOR'S EXPENSE.
4. ALL WORK MUST BE PERFORMED BY A NORTH CAROLINA LICENSED CONTRACTOR.
5. CONTRACTOR IS RESPONSIBLE FOR LOCATING AND VERIFYING THE EXACT LOCATION AND
ELEVATION FOR ALL UTILITIES PRIOR TO CONSTRUCTION; AND TO NOTIFY ENGINEER OF ANY
CONFLICTS OR DISCREPANCIES. THE LOCATION OF SOME UTILITIES SHOWN ON THE PLANS
HAVE BEEN APPROXIMATED. ALL BURIED UTILITIES HAVE NOT BEEN SHOWN ON THE PLANS
AND IT IS THE CONTRACTOR'S RESPONSIBILITY TO DETERMINE THEIR LOCATION PRIOR TO
CONSTRUCTION.
6. PROTECT EXISTING SITE FEATURES (SHOWN TO REMAIN) AND NEWLY COMPLETED WORK
DURING CONSTRUCTION. ANY DAMAGE INCURRED DURING OR RESULTING FROM
CONSTRUCTION ACTIVITY IS THE RESPONSIBILITY OF THE CONTRACTOR AND IS TO BE
REPAIRED IN ACCORDANCE WITH APPLICABLE STANDARDS OF APPROPRIATE AGENCIES, AS
WELL AS THE PROJECT PLANS AND SPECIFICATIONS, AT THE CONTRACTOR'S EXPENSE.
7. THE CONTRACTOR IS TO NOTIFY ALL UTILITY COMPANIES AT LEAST 72 HOURS BEFORE
CONSTRUCTION ACTIVITY IS TO BEGIN. THE CONTRACTOR SHALL NOTIFY NC ONE CALL AT
811, 48 HOURS BEFORE CONSTRUCTION BEGINS. NOTIFY THE ENGINEER AT LEAST 72
HOURS BEFORE STARTING CONSTRUCTION ACTIVITIES,
8. EROSION CONTROL IS A FIELD PERFORMANCE BASED ACTIVITY; AND ADDITIONAL SILT
FENCES, TEMPORARY SEDIMENT BASINS, AND ALL OTHER MEASURES MAY NEED TO BE
ADDED IN ADDITION TO THE APPROVED PLAN A MEASURES
A I E DT S NECESSARY. S SHOWN CAN AND
SHOULD BE ADJUSTED TO ASSURE MAXIMUM PROTECTION ON SITE. CONTRACTOR SHALL
ADD ADDITIONAL MEASURES AS NEEDED IN ENVIRONMENTALLY SENSITIVE AREAS.
9. CONTRACTOR IS RESPONSIBLE FOR INSTALLING, MAINTAINING, AND REMOVING ALL
NECESSARY EROSION AND SEDIMENTATION CONTROL MEASURES.
10. THE CONTRACTOR IS RESPONSIBLE FOR THE COORDINATION OF ADJUSTMENT OF ALL
UTILITY SURFACE ACCESSES WHETHER THE CONTRACTOR PERFORMS THE WORK OR A
UTILITY COMPANY PERFORMS THE WORK.
11. ALL AREAS WHERE THERE IS EXPOSED DIRT SHALL BE SEEDED, FERTILIZED AND MULCHED
ACCORDING TO THE SPECIFICATIONS NOTES IN THE PLANS. SITE STABILIZATION IS A
PERFORMANCE BASED REQUIREMENT, AND THE SITE WILL NOT BE ACCEPTED UNTIL
PERMANENT VEGETATION IS ESTABLISHED TO THE SATISFACTION OF THE ENGINEER.
12. CONTRACTOR RESPONSIBLE FOR KEEPING ACCURATE LOG OF SITE CONDITIONS IN
ACCORDANCE WITH NPDES PERMIT. MAINTENANCE INSPECTIONS SHALL BE PERFORMED
WEEKLY AND AFTER EACH RAINFALL. ALL REPAIRS NECESSARY SHOULD BE MADE
IMMEDIATELY AND IN STRICT ACCORDANCE WITH NCDEQ STANDARDS AND NPDES PERMIT.
CONTRACTOR SHALL SUPPLY THE ENGINEER WITH RECORD OF DEVIATIONS FROM PLANS
FOR PREPARATION OF FINAL RECORD DRAWINGS.
13. ALL SLOPES GREATER THAN 2:1 SLOPE AND OVER 5' IN HEIGHT SHALL BE CERTIFIED BY A
LICENSED PROFESSIONAL AS REQUIRED BY NCDEQ.
14. CONTRACTOR IS REQUIRED TO OBTAIN AND PROVIDE A COPY OF THE EROSION CONTROL
PERMIT FOR ANY OFFSITE BORROW/ SPOIL AREA. CONTRACTOR MUST PROVIDE COPY OF
PERMIT TO NCDEQ INSPECTOR PRIOR TO CONSTRUCTION.
15. IF BORROWED OR WASTE FILL MATERIAL IS GENERATED, AN APPROVED GRADING PERMIT
MUST BE SECURED FOR THE BORROW OR WASTE MATERIAL SITE PRIOR TO INITIATION OF
ANY LAND DISTURBING ACTIVITY
16. ALL FILL SLOPES SHALL BE COMPACTED FULL DEPTH TO NOT LESS THAN 95% MAXIMUM
DENSITY (STANDARD PROCTOR), SHALL BE PLACED ON A SURFACE CLEARED OF GROWTH
AND DEBRIS, AND BE PROPERLY BENCHED AND DRAINED.
17. ALL FILL MATERIAL, UNLESS A PERMIT FROM NCDEQ DIVISION OF WASTE MANAGEMENT TO
OPERATE A LANDFILL IS ON FILE FOR THE OFFICAL SITE, SHALL BE FREE OF ORGANIC OR
OTHER DEGRADABLE MATERIALS, MASONRY, CONCRETE AND BRICK SIZES EXCEEDING 12
INCHES, AND ANY MATERIALS WHICH COULD CAUSE THE SITE TO BE REGULATED AS A
LANDFILL BY THE STATE OF NORTH CAROLINA.
EROSION CONTROL MAITENANCE NOTES:
1. INSPECT EROSION CONTROL MEASURES ONCE A WEEK AND AFTER EVERY SIGNIFICANT RAINFALL.
CONTRACTOR TO INSPECT MEASURES FOR COMPLIANCE WITH PLANS AND DETAILS; INCLUDING
SEDIMENT ACCUMULATION BEYOND DETAIL ALLOWANCE, AND ALSO DAMAGE OR FAILURE OF
MEASURES.
2. WHEN SEDIMENT ACCUMULATION EXCEEDS DETAIL ALLOWANCE, CONTRACTOR TO REMOVE SEDIMENT
AND/OR DEBRIS, AND RELOCATE TO ANOTHER AREA WITH SEDIMENT CONTROLS.
3. WHEN MEASURES ARE FOUND TO BE DAMAGED, CONTRACTOR TO REPAIR IMMEDIATELY TO BRING
MEASURE BACK INTO COMPLIANCE WITH PLANS AND DETAILS.
4. IF MEASURES ARE FOUND TO BE INSUFFICIENT, CONTRACTOR TO INSTALL ADDITIONAL MEASURES
AS NEEDED TO ENSURE SEDIMENT REMAINS CONTROLLED ONSITE AS REQUIRED.
5. CONTRACTOR TO REMOVE MEASURES AND BRING AREA TO GRADE ONCE CONFORMATION OF SITE
STABILIZATION HAS BEEN REQUESTED AND RECEIVED FROM PROJECT ENGINEER.
ALL PERMANENT MEASURES ARE TO BE PERFORMED IN STRICT ACCORDANCE WITH REQUIREMENTS OF NCDEQ.
THE FOLLOWING APPLY TO AREAS WITHIN NCDEQ PERMANENT SEEDING MIXTURE AREA #1M:
SEEDING MIXTURE:
SPECIES RATE (LB/ACRE)
TALL FESCUE 100
PANICUM VIRGATUM 10
REDTOP 5
KENTUCKY BLUEGRASS 5
NURSE PLANTS:
BETWEEN MAY 1 AND AUG. 15, ADD 10 LB/ACRE GERMAN MILLET OR 15 LB/ACRE SUDANGRASS. PRIOR TO
MAY 1 OR AFTER AUG. 15, ADD 40 LB/ACRE RYE (GRAIN). IT MAY BE BENEFICIAL TO PLANT THE GRASSES IN
LATE SUMMER AND OVERSEED THE SWITCHGRASS IN MARCH.
SEEDING DATES:
BEST POSSIBLE
BELOW 2500 FT: AUG. 15 - SEPT. 1 JULY 25 - SEPT 15
MAR. 1 - APR. 1 MAR. 1 - MAY 10
ABOVE 2500 FT: JULY 25 - AUG. 15 JULY 15 - AUG. 30
MAR. 20 - APR. 20 MAR. 5 - MAY 15
COMPLETE SEEDING EARLIER IN FALL, AND START LATER IN SPRING ON NORTH- AND EAST -FACING
SLOPES.
SOIL AMENDMENTS:
APPLY LIME AND FERTILIZER ACCORDING TO THE RESULTS OF A NC DEPARTMENT OF AGRICULTURE SOIL TEST
MULCH:
APPLY 4,000-5,000 LB/ACRE GRAIN STRAW OR EQUIVALENT COVER OF ANOTHER SUITABLE MULCHING
MATERIAL. ANCHOR MULCH BY TACKING WITH ASPHALT, ROVING, OR NETTING. NETTING IS THE PREFERRED
ANCHORING METHOD ON STEEP SLOPES.
MAINTENANCE:
MOW NO MORE THAN ONCE A YEAR. REFERTILIZE IN THE SECOND YEAR UNLESS GROWTH IS FULLY ADEQUATE.
RESEED, FERTILIZE, AND MULCH DAMAGED AREAS IMMEDIATELY.
4't COM
1�1PACTED SOIL
2' MIN
EXISTING
GROUND IILL111
=�-III
18" MIN
1' DITCH DEPTH IN 1111 1�=llilll' I�I
ORIGINAL GROUND -_ 11=11I1i1- -II�
CONSTRUCTION SPECIFICATIONS:
6' TYP
1. REMOVE AND PROPERLY DISPOSE OF ALL TREES, BRUSH,
STUMPS, AND OTHER OBJECTIONABLE MATERIAL.
2. ENSURE THAT THE MINIMUM CONSTRUCTED CROSS SECTION MEETS
ALL DESIGN REQUIREMENTS.
3. ENSURE THAT THE TOP OF THE DIKE IS NOT LOWER AT ANY POINT
THAN THE DESIGN ELEVATION PLUS THE SPECIFIED SETTLEMENT.
4. PROVIDE SUFFICIENT ROOM AROUND DIVERSIONS TO PERMIT MACHINE
RE -GRADING AND CLEAN OUT.
5. CONSTRUCT ALL TEMPORARY DIVERSION DITCHES WITH A MINIMUM
2% SLOPE.
5. VEGETATE THE RIDGE IMMEDIATELY AFTER CONSTRUCTION, UNLESS IT
WILL REMAIN IN PLACE LESS THAN 30 WORKING DAYS.
TEMPORARY DIVERSION DITCH
NOT TO SCALE
12" OF NCDOT #5 OR #57
WASHED STONE
CLASS B RIPRAP
FILTER FABRIC ? 7 24" MAX.
AT CENTER
cp
4' TO 6' -
NOTE: MAXIMUM 100' SPACING
BETWEEN CHECK DAMS EXCEPT ON
ROADS GREATER THAN 10% GRADE IN
WHICH CASE MAXIMUM SPACING OF 50'
BETWEEN CHECK DAMS IS REQUIRED
A B
L -
SECTION
A -A
STONE CHECK DAM:
STONE SHOULD BE PLACED OVER THE CHANNEL BANKS TO KEEP WATER FROM CUTTING AROUND THE DAM.
L = THE DISTANCE SUCH THAT POINTS
A AND B ARE OF EQUAL ELEVATION
THE FOLLOWING CRITERIA SHOULD BE USED WHEN DESIGNING A CHECK DAM:
- ENSURE THAT THE DRAINAGE AREA ABOVE THE CHECK DAM DOES NOT
EXCEED 0.5 ACRES.
- KEEP THE MAXIMUM HEIGHT AT 2 FT AT THE CENTER OF THE DAM.
- KEEP THE CENTER OF THE CHECK DAM AT LEAST 9 INCHES LOWER THAN
THE OUTER EDGES AT NATURAL GROUND ELEVATION.
- KEEP THE SIDE SLOPES OF THE DAM AT 2:1 OR FLATTER. FILTER
- ENSURE THAT THE MAXIMUM SPACING BETWEEN DAMS PLACES THE TOE
OF THE UPSTREAM DAM AT THE SAME ELEVATION AS THE TOP OF THE
DOWNSTREAM DAM.
- STABILIZE OVERFLOW AREAS ALONG THE CHANNEL TO RESIST EROSION
CAUSED BY CHECK DAMS.
- USE NCDOT CLASS B STONE AND LINE THE UPSTREAM SIDE OF THE
DAM WITH NCDOT #5 OR #57 STONE.
- KEY THE STONE INTO THE DITCH BANKS AND EXTEND IT BEYOND THE ABUTMENTS A
MINIMUM OF 1.5 FEET TO AVOID WASHOUTS FROM OVERFLOW AROUND THE DAM.
STONE CHECK DAM
FACE VIEW
WATAUGA COUNTY
VALLE CRUCIS SCHOOL
BROADSTONE ROAD
VALLE CRUCIS, NC
SCO ##
CODE:
ITEM:
DESIGNER
CLARKNEXSEN
CLARK NEXSEN LICENSE NUMBER:
C-1028
CCCl
Design
COncepits.PA
ASHEVILLE OFFICE
WAYNESVILLE OFFICE
168 PATTON AVENUE
52 WALNUT STREET - SUITE 9
ASHEVILLE, NC 28805
WAYNESVILLE, NC 28786
PHONE [phone]
PHONE [phone]
FAX [phone]
FAX [phone]
NCBELS LICENSE #: C-2164
www.civildesignconcepts.com
GURPURATESEAL
PROFESSIONAL SEAL
000ti���2 =,
9�
SEAL
035093 00=
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O,Q pF
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REVISIONS
1 01/13/2022 DESIGN DEVELOPMENT
2 04/01/2022 EC / STORM / NCDOT SUBMITTAL
"r:Y PI "AI
ROUGH GRADING AND
ROSION CONTROL DETAIL
C931
0
LLI
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NOT TO SCALE
DESIGN: GRH
DRAWN: SAK CN 6832
REVIEW: GRH

1 2 3 4 5 6
W KA0Y
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MAINTENANCE NOTES:
INSPECT TEMPORARY SEDIMENT BASINS AT LEAST WEEKLY AND AFTER EACH SIGNIFICANT RAINFALL EVENT
AND REPAIR IMMEDIATELY. REMOVE SEDIMENT AND RESTORE THE BASIN TO ITS ORIGINAL DIMENSIONS WHEN
IT ACCUMULATES TO ONE-HALF THE DESIGN DEPTH. PLACE REMOVED SEDIMENT IN AN AREA WITH
SEDIMENT CONTROLS. CHECK THE EMBANKMENT, SPILLWAYS, AND OUTLET FOR EROSION DAMAGE, AND INSPECT
THE EMBANKMENT FOR PIPING AND SETTLEMENT. MAKE ALL NECESSARY REPAIRS IMMEDIATELY. REMOVE ALL
TRASH AND OTHER DEBRIS FROM THE SKIMMER AND POOL AREA.
BAFFLE (TYP.) +
EARTHEN EMBANKMENT I I I P7
,� � =III IIIIIIII
�r -III .III Ili i
-III=111-
�x. ' -III III I I i
-III=III-
-1
INLET ZONE
25% OF SURFACE AREA
\ FIRST CHAMBER
25% OF SURFACE AREA
SECOND CHAMBER
25% OF SURFACE AREA
NOTES:
OUTLET ZONE
1. POROUS BAFFLE USING JUTE NET BACKED 25% OF SURFACE AREA
BY COIR EROSION BLANKET (OR EQUIVALENT).
2. SEE FIGURE 6.65B OF NCDENR MANUAL OUTLET STRUCTURE
FOR CROSS SECTION OF POROUS BATTLE. WITH RISER BARREL
(SEE DETAIL)
D3.o� SEDIMENT TRAP / BASIN BAFFLE DETAIL
NOT TO SCALE
SEDIMENT TRAP / BASIN BAFFLE MAITENANCE NOTES:
1. INSPECT SEDIMENT BASIN AND BAFFLES ONCE A WEEK AND AFTER EVERY RAINFALL.
CONTRACTOR TO INSPECT SEDIMENT BASIN AND BAFFLES FOR COMPLIANCE WITH PLANS AND
DETAILS; INCLUDING SEDIMENT ACCUMULATION BEYOND DETAIL ALLOWANCE, AND DAMAGE OR
FAILURE OF MEASURES.
2. WHEN SEDIMENT ACCUMULATION EXCEEDS DETAIL ALLOWANCE, CONTRACTOR TO REMOVE SEDIMENT
AND/OR DEBRIS, AND RELOCATE TO ANOTHER AREA WITH SEDIMENT CONTROLS.
3. WHEN BAFFLES ARE FOUND TO BE DAMAGED, CONTRACTOR TO REPAIR IMMEDIATELY TO BRING
BAFFLES BACK INTO COMPLIANCE WITH PLANS AND DETAILS.
4. IF SEDIMENT BASIN IS FOUND TO BE INSUFFICIENT, CONTRACTOR TO INSTALL ADDITIONAL
MEASURES OR INCREASE BASIN SIZE AS NEEDED TO ENSURE SEDIMENT REMAINS CONTROLLED
ONSITE AS REQUIRED.
5. CONTRACTOR TO REMOVE MEASURES AND BRING AREA TO GRADE ONCE CONFORMATION OF SITE
STABILIZATION HAS BEEN REQUESTED AND RECEIVED FROM PROJECT ENGINEER.
SCH 40 COUPLING
CONNECTION (TYP)
VENT (TYP)
INLET (TYP)
PROPOSED NYLON ROPE
(ROPE TO RUN EMBANKMENT
TO PROVIDE METHOD TO PULL
SKIMMER)
INLET EXTENSION
SCH 40 SOLID PVC
BARREL OR "ARM"
SUPPLIED BY USER (TYP)
HOSE (TYP)
NOTES:
1. SKIMMER SHOWN IN FLOATING POSITION
2. FAIRCLOTH SKIMMER OR APPROVED EQUIVALENT
3. SKIMMER TO BE REMOVED UPON REMOVAL OF SEDIMENT TRAP
4. COUPLING CONNECTION INTO PROPOSED OUTLET STRUCTURES MUST BE SEALED UPON
REMOVAL OF SKIMMER
POND SKIMMER DETAIL
D3.O8 NOT TO SCALE
POND SKIMMER MAITENANCE NOTES:
1. INSPECT POND SKIMMER ONCE A WEEK AND AFTER EVERY RAINFALL. CONTRACTOR TO INSPECT
FOR COMPLIANCE WITH PLANS AND DETAILS. ENSURE SKIMMER DOES NOT GET STUCK TO BOTTOM
OF POND.
2. IF SKIMMER IS FOUND TO BE DAMAGED, CONTRACTOR TO REPAIR IMMEDIATELY OR REPLACE TO
BRING THE SKIMMER BACK INTO COMPLIANCE WITH PLANS AND DETAILS.
3. IF SKIMMER IS FOUND TO BE INSUFFICIENT, CONTRACTOR TO CONTACT PROJECT ENGINEER.
4. CONTRACTOR TO REMOVE MEASURES AND BRING AREA TO GRADE ONCE CONFORMATION OF SITE
STABILIZATION HAS BEEN REQUESTED AND RECEIVED FROM PROJECT ENGINEER.
SUPPORT POST,
CIIPPORT RC)PF TC) ')A" INTn POTTr)KA C`TA VC Tn
TRENCHED INTO BOTTOM
OR SIDE
D3.09 BAFFLE DETAIL
NOT TO SCALE
BAFFLE MAITENANCE NOTES:
1. REFERENCE DETAIL D3.07
BAFFLE MATERIAL
11 GAUGE
LANDSCAPING
STAPLE
STEEL POST
BAFFLE MATERIAL SHOULD BE
SECURED TO THE BOTTOM OF
THE SIDES AND BASIN USING
12" LANDSCAPE STAPLES
REFERENCE NCDENR EROSION AND SEDIMENT CONTROL PLANNING
AND DESIGN MANUAL SECTION 6.55 ROCK PIPE INLET PROTECTION
CLAS`.
F� 0�
SEDIMENT
STORAGE ZONE
FLOOD STORAGE ONE
MAX SEDIMENT DEPTH
RIPRAP HEADWALL, 1'
MIN. HEIGHT FROM
1' 3' ROAD SHOULDER
MAX DOT #57
WASHED STONE
CLASS B RIP RAP
PIPE
RIP RAP
HEADWALL
ILTER BERM NC DOT
�57 WASHED STONE
ROCK PIPE INLET PROTECTION
D3.OS NOT TO SCALE
ROCK INLET PROTECTION MAINTENANCE NOTES:
1. INSPECT ROCK INLET PROTECTION ONCE A WEEK AND AFTER EVERY RAINFALL. CONTRACTOR TO
INSPECT FOR COMPLIANCE WITH PLANS AND DETAILS.
2. WHEN SEDIMENT ACCUMULATION EXCEEDS DETAIL ALLOWANCE, CONTRACTOR TO REMOVE SEDIMENT
AND/OR DEBRIS, AND RELOCATE TO ANOTHER AREA WITH SEDIMENT CONTROLS.
3. IF ROCK INLET PROTECTION IS FOUND TO BE DAMAGED, CONTRACTOR TO REPAIR IMMEDIATELY OR
REPLACE TO BRING THE INLET PROTECTION BACK INTO COMPLIANCE WITH PLANS AND DETAILS.
4. IF ROCK INLET PROTECTION IS FOUND TO BE INSUFFICIENT, CONTRACTOR TO ADD ADDITIONAL
STONE AS NEEDED TO PROTECT THE INLET OF THE PIPE FROM SEDIMENT.
5. CONTRACTOR TO REMOVE MEASURES AND BRING AREA TO GRADE ONCE CONFORMATION OF SITE
STABILIZATION HAS BEEN REQUESTED AND RECEIVED FROM PROJECT ENGINEER.
2"-3" COARSE
AGGREGATE (SUCH AS7 �11
RAILROAD BALLAST) IrZS
NOTES:
1. A STABILIZED PAD OF CRUSHED STONE SHALL BE LOCATED WHERE
TRAFFIC WILL BE ENTERING OR LEAVING A CONSTRUCTION SITE TO OR
FROM AN EXISTING ROAD.
2. FILTER FABRIC SHALL BE PLACED UNDER. THE ENTRANCE/EXIT AND
SHALL BE MIRAFI 500 OR EQUAL.
3. STONE TO BE 2 - 3 INCH WASHED STONE.
4. THE ENTRANCE SHALL BE MAINTAINED IN A CONDITION WHICH WILL
PREVENT TRACKING OR FLOWING OF SEDIMENT ONTO PUBLIC STREETS
OR EXISTING PAVEMENT. THIS MAY REQUIRE PERIODIC TOP DRESSING
WITH ADDITIONAL STONE AS CONDITIONS DEMAND AND REPAIR AND/OR
CLEANOUT OF ANY MEASURES USED TO TRAP SEDIMENT.
5. ALL SEDIMENT SPILLED, DROPPED, WASHED OR TRACKED ONTO PUBLIC
STREETS MUST BE REMOVED IMMEDIATELY.
6. WHEN NECESSARY WHEELS MUST BE CLEANED TO REMOVE SEDIMENT
PRIOR TO ENTERING A PUBLIC STREET, WHEN WASHING IS REQUIRED, IT
SHALL BE DONE ON AN AREA STABILIZED WITH CRUSHED STONE WHICH
DRAINS INTO AN APPROVED SEDIMENT BASIN
D3.06 STABILIZED CONSTRUCTION ENTRANCE
NOT TO SCALE
FINISHED GRADE
VARIES'
In
w
S150/S75BN OR EQUAL DITCH LINER
TEMPORARY DIVERSION DITCH
NOT TO SCALE
D3.04
TEMPORARY DIVERSION DITCH MAINTENANCE NOTES:
1. INSPECT DITCHES ONCE A WEEK AND AFTER EVERY RAINFALL. CONTRACTOR TO INSPECT FOR
COMPLIANCE WITH DITCH LOCATION AND SIZE SHOWN ON APPROVED PLANS.
2. IF SEDIMENT ACCUMULATION WITHIN DITCH BEGINS TO REDUCE WATER FLOW CAPACITY,
CONTRACTOR TO REMOVE SEDIMENT AND/OR DEBRIS, AND RELOCATE TO ANOTHER AREA WITH
SEDIMENT CONTROLS.
3. IF DITCH IS FOUND TO BE DAMAGED BY EROSION, CONTRACTOR TO REPAIR IMMEDIATELY TO BRING
THE DITCH BACK INTO COMPLIANCE WITH PLANS AND DETAILS.
4. IF DITCH IS FOUND TO BE INSUFFICIENT, CONTRACTOR TO INCREASE THE OVERALL SIZE OF THE
DITCH OR ADD ADDITIONAL LENGTH AS NEEDED.
5. CONTRACTOR TO REMOVE MEASURES AND BRING AREA TO GRADE ONCE CONFORMATION OF SITE
STABILIZATION HAS BEEN REQUESTED AND RECEIVED FROM PROJECT ENGINEER.
MIN. 10 GA. LINE
WIRES (TYP)
VARIABLE AS DIRECTED BY ENGINEER
i
WOVEN WIRE FABRIC
SII T FFN(.F FII TFR FARRIO
FRONT VIEW
�- STEEL POST
PLASTIC OR
WIRE TIES (TYP)
MIN. 12-1/2 GA
INTERMEDIATE
WIRES (TYP)
EX. GRADE
STEEL POST
WOVEN WIRE FABRIC
SILT FENCE FILTER FABRIC
N � �
0
N
IIIII FILL SLOPE
N IIIII
Ill➢ EX. GRADE
ANCHOR 12" LONG SKIRT IN
TRENCH 8" DEEP AND 4" WIDE*
SIDE VIEW
CONSTRUCTION NOTES: MATERIALS NOTES:
1. CONSTRUCT THE SEDIMENT BARRIER OF STANDARD 1. USE A SYNTHETIC FILTER FABRIC OF AT LEAST 95% BY
STRENGTH OR EXTRA STRENGTH SYNTHETIC FILTER WEIGHT OF POLYOLEFINS OR POLYESTER, WHICH IS
FABRICS. CERTIFIED BY THE MANUFACTURER OR SUPPLIER AS
CONFORMING TO THE REQUIREMENTS IN ASTM D 6461,
2. ENSURE THAT THE HEIGHT OF THE SEDIMENT FENCE DOES WHICH IS SHOWN IN PART IN TABLE 6.62b OF THE
NOT EXCEED 24" ABOVE THE GROUND SURFACE. (HIGHER NCDENR EROSION AND SEDIMENT CONTROL PLANNING AND
FENCES MAY IMPOUND VOLUMES OF WATER SUFFICIENT TO DESIGN MANUAL.
CAUSE FAILURE OF THE STRUCTURE.) 2
SYNTHETIC FILTER FABRIC SHOULD CONTAIN ULTRAVIOLET
3. CONSTRUCT THE FILTER FABRIC FROM A CONTINUOUS RAY INHIBITORS AND STABILIZERS TO PROVIDE A MINIMUM
ROLL CUT TO THE LENGTH OF THE BARRIER TO AVOID OF 6 MONTHS OF EXPECTED USUABLE CONSTRUCTION LIFE
JOINTS. WHEN JOINTS ARE NECESSARY, SECURELY AT A TEMPERATURE RANGE OF 0 TO 120°F.
FASTEN THE FILTER CLOTH ONLY AT A SUPPORT POST
WITH 4' MIN. OVERLAP TO THE NEXT POST. 3. ENSURE THAT POSTS FOR SEDIMENT FENCES ARE 1.33
LB/LINEAR FT STEEL WITH A MINIMUM LENGTH OF 5 FEET.
4. SUPPORT STANDARD STRENGTH FILTER FABRIC BY WIRE MAKE SURE THAT STEEL POSTS HAVE PROJECTIONS TO
MESH FASTENED SECURELY TO THE UPSLOPE SIDE OF THE FACILITATE FASTENING THE FABRIC.
POSTS. EXTEND THE WIRE MESH SUPPORT TO THE
BOTTOM OF THE TRENCH. FASTEN THE WIRE 4. FOR REINFORCEMENT OF STANDARD STRENGTH FILTER
RENFORCEMENT, THEN THE FABRIC ON THE UPSLOPE SIDE FABRIC, USE WIRE FENCE WITH A MINIMUM 14 GAUGE AND
OF THE FENCE POST. WIRE OR PLASTIC TIES SHOULD A MAXIMUM MESH SPACING OF 6 INCHES.
HAVE A MIN. 50 lb TENSILE STRENGTH.
5. EXCAVATE A TRENCH APPROXIMATELY 4" WIDE AND 8" NOTES:
DEEP ALONG THE PROPOSED LINE OF POSTS AND USE SILT FENCE ONLY WHEN DRAINAGE AREA DOES NOT
UPSLOPE FROM THE BARRIER. EXCEED 1/4 ACRE AND NEVER IN AREAS OF
6. PLACE 12" OF THE FABRIC ALONG THE BOTTOM AND SIDE CONCENTRATED FLOW
OF THE TRENCH. * FOR REPAIR OF SILT FENCE FAILURES, USE No. 57 WASHED
7. BACKFILL THE TRENCH WITH SOIL PLACED OVER THE STONE. AS AN ANCHOR WHEN SILT FENCE IS PROTECTING
FILTER FABRIC AND COMPACT. THOROUGH COMPACTION CATCH BASIN.
OF THE BACKFILL IS CRITICAL TO SILT FENCE
PERFORMANCE.
8. DO NOT ATTACH FILTER FABRIC TO EXISTING TREES.
D3.01 SILT FENCE
NOT TO SCALE
WOVEN FILTER FABRIC
WIRE FENCING
i-STEEL POST
-STEEL POST
WIRE FENCING
-STEEL POST
WIRE FENCING
-CLASS I RIP RAP
-45 WASHED STONE
CONCENTRATED FLOW OUTLETS -
D3.03 SILT FENCE
NOT TO SCALE
CONCENTRATED FLOW OUTLET MAINTENANCE NOTES:
1. INSPECT CONCENTRATED FLOW OUTLET ONCE A WEEK AND AFTER EVERY RAINFALL. CONTRACTOR
TO INSPECT FOR COMPLIANCE WITH PLANS AND DETAILS.
2. WHEN SEDIMENT ACCUMULATION EXCEEDS DETAIL ALLOWANCE, CONTRACTOR TO REMOVE SEDIMENT
AND/OR DEBRIS, AND RELOCATE TO ANOTHER AREA WITH SEDIMENT CONTROLS.
3. IF CONCENTRATED FLOW OUTLET IS FOUND TO BE DAMAGED, CONTRACTOR TO REPAIR
IMMEDIATELY OR REPLACE TO BRING THE INLET PROTECTION BACK INTO COMPLIANCE WITH PLANS
AND DETAILS.
4. IF CONCENTRATED FLOW OUTLET IS FOUND TO BE INSUFFICIENT TO DRAIN FILTERED WATER FROM
BEHIND SILT FENCE, CONTRACTOR TO ADD ADDITIONAL CONCENTRATED FLOW OUTLETS TO THE
SILT FENCE AS NEEDED TO PROTECT THE SILT FENCE FROM BEING OVERTOPPED BY WATER.
5. CONTRACTOR TO REMOVE MEASURES AND BRING AREA TO GRADE ONCE CONFORMATION OF SITE
STABILIZATION HAS BEEN REQUESTED AND RECEIVED FROM PROJECT ENGINEER.
PIPE OUTLET TO
WELL-DEFINED CHANNEL
PLAN
La
La o
f ;n �_
e.-
f
FILTER BLANKET FILTER BLANKET
SECTION AA SECTION AA
NOTES:
1. La IS THE LENGTH OF THE RIP RAP APRON.
2. d = 1.5 TIMES THE MAXIMUM STONE DIAMETER BUT NOT LESS THAN 6" (MINIMUM IS
24" DEEP IF STONE IS CLASS II)
3. IN A WELL-DEFINED CHANNEL, EXTEND THE APRON UP THE CHANNEL BANKS TO AN
ELEVATION OF 6" ABOVE THE MAXIMUM TAILWATER DEPTH OR TO THE TOP OF THE
BANK, WHICHEVER IS LESS.
4. A FILTER BLANKET OR FILTER FABRIC SHOULD BE INSTALLED BETWEEN THE RIP RAP
AND SOIL FOUNDATION.
5. COMPACT ANY REQUIRED FILL TO DENSITY OF SURROUNDING UNDISTURBED MATERIAL.
6. RIP RAP MAY BE FIELDSTONE OR ROUGH QUARRY STONE AND SHALL BE HARD.
ANGULAR AND WELL -GRADED.
7. CONSTRUCT APRON AT ZERO GRADE. TOP OF RIP RAP SHALL BE LEVEL WITH THE
RECEIVING CHANNEL OR SLIGHTLY LOWER.
8. ALIGN APRON WITH RECEIVING CHANNEL OR STREAM. ASSURE APRON IS STRAIGHT
THROUGHOUT ITS LENGTH.
9. END WIDTH OF APRON TO BE EQUAL TO WIDTH OF RECEIVING CHANNEL.
D3.02 RIP -RAP APRON
NOT TO SCALE
RIP -RAP APRON MAINTENANCE NOTES:
1. INSPECT RIP -RAP APRON ONCE A WEEK AND AFTER EVERY RAINFALL. CONTRACTOR TO INSPECT
FOR COMPLIANCE WITH PLANS AND DETAILS.
2. WHEN SEDIMENT ACCUMULATION EXCEEDS DETAIL ALLOWANCE, CONTRACTOR TO REMOVE SEDIMENT
AND/OR DEBRIS, AND RELOCATE TO ANOTHER AREA WITH SEDIMENT CONTROLS.
3. IF RIP -RAP APRON IS FOUND TO BE DAMAGED, CONTRACTOR TO REPAIR IMMEDIATELY OR
REPLACE TO BRING THE APRON BACK INTO COMPLIANCE WITH PLANS AND DETAILS.
4. IF RIP -RAP APRON IS FOUND TO BE INSUFFICIENT, CONTRACTOR TO ADD ADDITIONAL STONE AND
INCREASE THE OVERALL SIZE OF THE RIP -RAP APRON AS NEEDED.
5. CONTRACTOR TO REMOVE MEASURES AND BRING AREA TO GRADE ONCE CONFORMATION OF SITE
STABILIZATION HAS BEEN REQUESTED AND RECEIVED FROM PROJECT ENGINEER.
WATAUGA COUNTY
VALLE CRUCIS SCHOOL
BROADSTONE ROAD
VALLE CRUCIS, NC
SCO ##
CODE:
ITEM:
DESIGNER
C L A R K N E X S E N
CLARK NEXSEN LICENSE NUMBER:
C-1028
C C
Civil
Design
Concepts, PA
ASHEVILLE OFFICE
WAYNESVILLE OFFICE
168 PATTON AVENUE
52 WALNUT STREET - SUITE 9
ASHEVILLE, NC 28805
WAYNESVILLE, NC 28786
PHONE [phone]
PHONE [phone]
FAX [phone]
FAX [phone]
NCBELS LICENSE #: C-2184
www.eivildesignconcepts.com
CORPORATESEAL
PROFESSIONAL SEAL
SEAL
0 035 3 0� 2
�;?Y R .°
nl
REVISIONS
1 01/13/2022 DESIGN DEVELOPMENT
2 04/01/2022 EC / STORM / NCDOT SUBMITTAL
KEY PLAN
ROUGH GRADING AND
ROSION CONTROL DETAIL
C932
DESIGN:
GRH
DRAWN:
SAK
REVIEW:
GRH
CN 6832

1 2 3 4 5 6
WATAUGA COUNTY
VALLE CRUCIS SCHOOL
E
C
191
PEAK ROOF TRASHRACK
10.0'
SKIMMER
BERM TOP
(SEE DETAIL)
1.0' MIN EMERGENCY SPILLWAY
RISER
CREST
1.0' MIN
ELEV.
2672.7'
FREEBOARD
-11
SELECTED FILL�kl
=WITH
EMBANKMENT STABILIZED
VEGETATION
=SEDIMENT
REMOVAL MARK
- I
PLACED IN LAYERS =I.IIi
2.5:1 SLOPE MAX.
ELEV.
2668.8'
AND COMPACTED
-Illillllf
6'
MIN.
RISER
INVERT
-III III-
ELEV.
2668.4'
_
I I III1 I I1 i /
CMP BARREL
CLASS
B STONE PAD I- i
111 I I1 I I1 11��
�
r
(4'x4'x1' MIN)
ANTI
-SEEP COLLAR
FLEXIBLE CONNECTION TO
(SEE
DETAIL)
SKIMMER (SEE DETAIL)
L
CUT-OFF TRENCH
CONCRETE
2'
DEEP, 3' BOTTOM
ANTI -FLOATATION
2:1 SIDE SLOPES
PAD
SECTION THROUGH EMBANKMENT
RIP RAP APRON
AT OUTLET
1. LOCATE THE SEDIMENT INLETS TO THE BASIN THE GREATEST DISTANCE FROM THE PRINCIPLE SPILLWAY.
2. SEED AND PLACE MATTING FOR EROSION CONTROL ON INTERIOR AND EXTERIOR SIDESLOPES.
3. INSTALL A MINIMUM OF 3 COIR FIBER BAFFLES IN ACCORDANCE WITH NCDEQ PRACTICE STANDARD 6.65.
4. INSTALL SKIMMER AND COUPLING TO RISER STRUCTURE OR DIRECTLY INTO THE EMBANKMENT 1 FT. FROM BOTTOM OF BASIN
5. THE ARM PIPE SHALL HAVE A MINIMUM LENGTH OF 6 FT. BETWEEN THE SKIMMER AND THE COUPLING.
6. ALLOW THE MAXIMUM REASONABLE DETENTION PERIOD BEFORE THE BASIN IS COMPLETELY DE -WATERED (AT LEAST 10 HOURS).
7. REDUCE THE INFLOW VELOCITY AND DIVERT ALL SEDIMENT -FREE RUNNOFF.
ELEVATION OF OVERFLOW
(SEE PLAN VIEW FOR
ELEVATIONS)
CONCRETE RISER
STRUCTURE (SEE PLAN
VIEW FOR SIZING)
BOTTOM OF
SEDIMENT TRAP
4" SCH 40 COUPLING
FROM POND SKIMMER
TO BE CONNECTED TO
4" SCH 40 PIPE
E
11
SEDIMENT BASIN
NOT TO SCALE
E
10
TRASH RACK
N
ELEV 1' BELOW
TRAP BOTTOM
REINFORCED
CONCRETE SLAB
5' WIDE BERM
1% MIN --->
TEMPORARY RISER STRUCTURE
AT TEMPORARY SEDIMENT BASIN
NOT TO SCALE
TEMPORARY HDPE
PIPE
PIPE TO TIE INTO
STORM STRUCTURE
(SEE PLAN)
BROADSTONE ROAD
VALLE CRUCIS, NC
SCO ##
CODE:
ITEM:
DESIGNER
C L A R K N E X S E N
CLARK NEXSEN LICENSE NUMBER:
C-1028
'ONSULTANT
0
Civil
Design
Concepts, PA
ASHEVILLE OFFICE
WAYNESVILLE OFFICE
168 PATTON AVENUE
52 WALNUT STREET - SUITE 9
ASHEVILLE, NC 28805
WAYNESVILLE, NC 28786
PHONE [phone]
PHONE [phone]
FAX [phone]
FAX [phone]
NCBELS LICENSE #: C-2184
www.eivildesignconcepts.com
CORPORATESEAL
PROFESSIONAL SEAL
REVISIONS
1 01 /13/2022
2 04/01 /2022
'FY PLAN
S/ 0"'
SEAL
0 035093 0� 2
Ry NSF \,
DESIGN DEVELOPMENT
EC / STORM / NCDOT SUBMITTAL
EROSION CONTROL
SEDIMENT TRAP DETAILS
C933
LLJI
I_
z
Ir
In
DESIGN: GRH
DRAWN: SAK CN 6832
REVIEW: GRH

1 2 3 4 5 6
WATAUGA COUNTY
VALLE CRUCIS SCHOOL
E
C
191
PEAK ROOF TRASHRACK
10.0'
SKIMMER
BERM TOP
(SEE DETAIL)
1.0' MIN EMERGENCY SPILLWAY
RISER
CREST
1.0' MIN
ELEV.
2672.7'
FREEBOARD
-11
SELECTED FILL�kl
=WITH
EMBANKMENT STABILIZED
VEGETATION
=SEDIMENT
REMOVAL MARK
- I
PLACED IN LAYERS =I.IIi
2.5:1 SLOPE MAX.
ELEV.
2668.8'
AND COMPACTED
-Illillllf
6'
MIN.
RISER
INVERT
-III III-
ELEV.
2668.4'
_
I I III1 I I1 i /
CMP BARREL
CLASS
B STONE PAD I- i
111 I I1 I I1 11��
�
r
(4'x4'x1' MIN)
ANTI
-SEEP COLLAR
FLEXIBLE CONNECTION TO
(SEE
DETAIL)
SKIMMER (SEE DETAIL)
L
CUT-OFF TRENCH
CONCRETE
2'
DEEP, 3' BOTTOM
ANTI -FLOATATION
2:1 SIDE SLOPES
PAD
SECTION THROUGH EMBANKMENT
RIP RAP APRON
AT OUTLET
1. LOCATE THE SEDIMENT INLETS TO THE BASIN THE GREATEST DISTANCE FROM THE PRINCIPLE SPILLWAY.
2. SEED AND PLACE MATTING FOR EROSION CONTROL ON INTERIOR AND EXTERIOR SIDESLOPES.
3. INSTALL A MINIMUM OF 3 COIR FIBER BAFFLES IN ACCORDANCE WITH NCDEQ PRACTICE STANDARD 6.65.
4. INSTALL SKIMMER AND COUPLING TO RISER STRUCTURE OR DIRECTLY INTO THE EMBANKMENT 1 FT. FROM BOTTOM OF BASIN
5. THE ARM PIPE SHALL HAVE A MINIMUM LENGTH OF 6 FT. BETWEEN THE SKIMMER AND THE COUPLING.
6. ALLOW THE MAXIMUM REASONABLE DETENTION PERIOD BEFORE THE BASIN IS COMPLETELY DE -WATERED (AT LEAST 10 HOURS).
7. REDUCE THE INFLOW VELOCITY AND DIVERT ALL SEDIMENT -FREE RUNNOFF.
ELEVATION OF OVERFLOW
(SEE PLAN VIEW FOR
ELEVATIONS)
CONCRETE RISER
STRUCTURE (SEE PLAN
VIEW FOR SIZING)
BOTTOM OF
SEDIMENT TRAP
4" SCH 40 COUPLING
FROM POND SKIMMER
TO BE CONNECTED TO
4" SCH 40 PIPE
E
11
SEDIMENT BASIN
NOT TO SCALE
E
10
TRASH RACK
N
ELEV 1' BELOW
TRAP BOTTOM
REINFORCED
CONCRETE SLAB
5' WIDE BERM
1% MIN --->
TEMPORARY RISER STRUCTURE
AT TEMPORARY SEDIMENT BASIN
NOT TO SCALE
TEMPORARY HDPE
PIPE
PIPE TO TIE INTO
STORM STRUCTURE
(SEE PLAN)
BROADSTONE ROAD
VALLE CRUCIS, NC
SCO ##
CODE:
ITEM:
DESIGNER
0
C L A R K N E X S E N
CLAKK IvtxSEN LICENSE NUMBER:
C-1028
Civil
Design
Concepts, PA
ASHEVILLE OFFICE
WAYNESVILLE OFFICE
168 PATTON AVENUE
52 WALNUT STREET - SUITE 9
ASHEVILLE, NC 28805
WAYNESVILLE, NC 28786
PHONE [phone]
PHONE [phone]
FAX [phone]
FAX [phone]
NCBELS LICENSE #: C-2184
www.eivildesignconcepts.com
CORPORATESEAL
PROFESSIONAL SEAL
REVISIONS
1 01 /13/2022
2 04/01 /2022
KEY PLAN
SEAL
0 035093 0� 2
O,Q y NpF
R.
DESIGN DEVELOPMENT
EC / STORM / NCDOT SUBMITTAL
EROSION CONTROL
SEDIMENT TRAP DETAILS
PHASE 2
C934
LLJI
I_
z
Ir
In
DESIGN: GRH
DRAWN: SAK CN 6832
REVIEW: GRH

1 2 3 4 5 6
WATAUGA COUNTY
VALLE CRUCIS SCHOOL
E
C
191
PEAK ROOF TRASHRACK
10.0'
SKIMMER
BERM TOP
(SEE DETAIL)
1.0' MIN EMERGENCY SPILLWAY
RISER
CREST
1.0' MIN
ELEV.
2672.7'
FREEBOARD
-11
SELECTED FILL�kl
=WITH
EMBANKMENT STABILIZED
VEGETATION
=SEDIMENT
REMOVAL MARK
- I
PLACED IN LAYERS =I.IIi
2.5:1 SLOPE MAX.
ELEV.
2668.8'
AND COMPACTED
—Illillllf
6'
MIN.
RISER
INVERT
—III III-
ELEV.
2668.4'
_
I I III1 I I1 i /
CMP BARREL
CLASS
B STONE PAD I— i
111 I I1 I I1 11��
�
r
(4'x4'x1' MIN)
ANTI
—SEEP COLLAR
FLEXIBLE CONNECTION TO
(SEE
DETAIL)
SKIMMER (SEE DETAIL)
L
CUT—OFF TRENCH
CONCRETE
2'
DEEP, 3' BOTTOM
ANTI —FLOATATION
2:1 SIDE SLOPES
PAD
SECTION THROUGH EMBANKMENT
RIP RAP APRON
AT OUTLET
1. LOCATE THE SEDIMENT INLETS TO THE BASIN THE GREATEST DISTANCE FROM THE PRINCIPLE SPILLWAY.
2. SEED AND PLACE MATTING FOR EROSION CONTROL ON INTERIOR AND EXTERIOR SIDESLOPES.
3. INSTALL A MINIMUM OF 3 COIR FIBER BAFFLES IN ACCORDANCE WITH NCDEQ PRACTICE STANDARD 6.65.
4. INSTALL SKIMMER AND COUPLING TO RISER STRUCTURE OR DIRECTLY INTO THE EMBANKMENT 1 FT. FROM BOTTOM OF BASIN
5. THE ARM PIPE SHALL HAVE A MINIMUM LENGTH OF 6 FT. BETWEEN THE SKIMMER AND THE COUPLING.
6. ALLOW THE MAXIMUM REASONABLE DETENTION PERIOD BEFORE THE BASIN IS COMPLETELY DE —WATERED (AT LEAST 10 HOURS).
7. REDUCE THE INFLOW VELOCITY AND DIVERT ALL SEDIMENT —FREE RUNNOFF.
ELEVATION OF OVERFLOW
(SEE PLAN VIEW FOR
ELEVATIONS)
CONCRETE RISER
STRUCTURE (SEE PLAN
VIEW FOR SIZING)
BOTTOM OF
SEDIMENT TRAP
4" SCH 40 COUPLING
FROM POND SKIMMER
TO BE CONNECTED TO
4" SCH 40 PIPE
E
11
SEDIMENT BASIN
NOT TO SCALE
E
10
TRASH RACK
N
ELEV 1' BELOW
TRAP BOTTOM
REINFORCED
CONCRETE SLAB
5' WIDE BERM
1% MIN --->
TEMPORARY RISER STRUCTURE
AT TEMPORARY SEDIMENT BASIN
NOT TO SCALE
TEMPORARY HDPE
PIPE
PIPE TO TIE INTO
STORM STRUCTURE
(SEE PLAN)
BROADSTONE ROAD
VALLE CRUCIS, NC
SCO ##
CODE:
ITEM:
DESIGNER
0
C L A R K N E X S E N
CLAKK IvtxSEN LICENSE NUMBER:
C-1028
Civil
Design
Concepts, PA
ASHEVILLE OFFICE
WAYNESVILLE OFFICE
168 PATTON AVENUE
52 WALNUT STREET - SUITE 9
ASHEVILLE, NC 28805
WAYNESVILLE, NC 28786
PHONE [phone]
PHONE [phone]
FAX [phone]
FAX [phone]
NCBELS LICENSE #: C-2184
www.eivildesignconcepts.com
CORPORATESEAL
PROFESSIONAL SEAL
SEAL
0 03 093 � 2
o �Fo
G'o
° 1��
o;,y oaN�F
REVISIONS
1 01 /13/2022
2 04/01 /2022
KEY PLAN
DESIGN DEVELOPMENT
EC / STORM / NCDOT SUBMITTAL
EROSION CONTROL
SEDIMENT TRAP DETAILS
PHASE 2
C934
LLJI
I_
z
Ir
In
DESIGN: GRH
DRAWN: SAK CN 6832
REVIEW: GRH

1 2 3 4 5 6
0
LLI
z
Ir
E
C
A
NEENAH R-1975-B SCORIATED LID
HANDHOLE FRAME & LID LETTERED "STORM" EXTERNAL DOWN SPOUT ALL NON-FERROUS UNDERGROUND LINES
OR APPROVED EQUAL OR "SEWER" NEENAH R-1975-B
HANDHOLE FRAME & LID SCORIATED LID (SEE ARCHITECTURAL OUTSIDE BUILDING FOOTPRINT SHALL BE FINAL BACKFILL
OR APPROVED EQUAL "� LETTERED "STORM" PLANS) REQUIRED TO HAVE A MAGNETIC -TYPE (SEE SPECIFICATION FOR
FINISH GRADE WARNING TAPE INSTALLED IN THE
BACKFILL AT LEAST 6" BELOW GRADE. COMPACTION REQUIREMENT)
FINISH GRADE 6" UNIVERSAL DOWN SPOUT
N CONNECTION PLUG
z (FERNCO USDS-6P OR
J .,..ro ..a..
APPROVED EQUIVALENT)
N z 4" THREADED Q ''
w o CLEAN -OUT PLUG M 0_ 6" DOWN SPOUT COLLECTION
w 11J N z 4" THREADED PIPE (CONTRACTOR TO
D CO 45° BEND 45° WYE BRANCH OR 45' J 0 CLEAN -OUT PLUG COORDINATE WITH ARCHITECT 00
�(If BEND AS REQUIRED BY z cr) FOR ANY SUPERCEDING DOWN w z Of
z
SITE PLAN D 45° BEND SPOUT CONNECTION DESIGNS o Ld > w
~ z w 45° WYE BRANCH OR AND LOCATIONS) O 0 >
a0 O PROVIDE STONE BEDDING Q O Q
45° BEND AS REQUIRED � o_
FROM 6" BELOW PIPE TO TOP O BY SITE PLAN D o w
00 PROVIDE STONE BEDDING
o OF PIPE FOR FULL TRENCH z m
N FROM 6" BELOW PIPE TO TOP z �_
WIDTH ON ALL PVC PIPE. ? x
o OF PIPE FOR FULL TRENCH g Li
WIDTH. _j
1.0% MIN.
1.0% MIN. INITIAL BACKFILL
45° BEND (TYP) (COMPACTED TO 98%
(AS REQUIRED) SPRINGLINE - OF STANDARD PROCTOR)
NOTES: HAUNCH
NOTES: (COMPACTED TO 98%
1. CLEAN -OUT PIPE AND FITTINGS SHALL BE SAME MATERIAL AS THE DOWNSPOUT COLLECTION PIPE. SEE OF STANDARD PROCTOR)
PLAN FOR PIPE SIZES. CLEAN -OUT WYE TO BE SAME DIAMETER AS LATERAL. RISER, PIPE AND 1. CLEAN -OUT PIPE AND FITTINGS SHALL BE SAME MATERIAL AS THE DOWNSPOUT COLLECTION PIPE. SEE
BEDDING
THREADED PLUG TO BE 4". PLAN FOR PIPE SIZES. CLEAN -OUT WYE TO BE SAME DIAMETER AS LATERAL. RISER, PIPE AND.
2. WHERE CLEAN -OUTS ARE LOCATED IN SIDEWALKS OR PAVEMENT, CAST HANDHOLE LID IN PLACE AND THREADED PLUG TO BE 4". (COMPACTED TO 98%
FLUSH WITH FINISH GRADE. 2. WHERE CLEAN -OUTS ARE LOCATED IN SIDEWALKS OR PAVEMENT, CAST HANDHOLE LID IN PLACE AND OF STANDARD PROCTOR)
FLUSH WITH FINISH GRADE. w w
3. CONTRACTOR TO COORDINATE WITH ARCHITECT FOR ANY SUPERCEDING EXTERNAL DOWN SPOUT a- o
COLLECTION SYSTEM CONNECTION DESIGNS AND LOCATIONS a o SUITABLE
D5.08 PIPE CLEANOUT DETAIL N 0 FOUNDATION
NOT TO SCALE DOWN SPOUT COLLECTION PIPE AND CLEANOUT ^' MIN. TRENCH WIDTH _
DS.OS N 0 (SEE TABLE)
ro NOT TO SCALE 0. 0'
00
TOP OF WEIR
MANHOLE FRAME
AND LID TO BE
nl nnrn nlnC/"`TI V
PRECAST OR 8" BRICKS
W/ 1/2" 1:2 MORTAR
ON OUTSIDE AND INSIDE
STORM DRAIN RIM INV.
SEE PLAN
INTERIOR INV. ELEV.
SEE PLAN
PORTION OF STRUCTURE
UNDERGROUND (SEE
STRUCTURE & PIPE TABLE)
NOTE:
CORE OPENINGS TO ACCOMMODATE PROPOSED PIPES. (REFER TO PLAN
SHEET FOR SIZE AND LOCATION OF PIPE)
ROUND OPEN THROAT DETAIL
NOT TO SCALE
STANDARD SCHEDULE
TOP
O.D. HEIGHT
6
$
SLAB
WT./LBS
702
940
O.D. HEIGHT
0.67'
1.33'
2.67
RISER
WT./LBS
503
998
2,003
SOLID
O.D. HEIGHT
3.0'
3.5'
BASE
WT./LBS
1,934
2,161
INCOMING
PRECAST OR 8" BR
W/ 1 /2" 1: 2 MORT)
ON OUTSIDE AND IN
NOTE:
CORE OPENINGS TO ACCOMMODATE PROPOSED PIPES. (REFER TO PLAN
SHEET FOR SIZE AND LOCATION OF PIPE)
D5.06 TYPICAL OPEN THROAT DETAIL
NOT TO SCALE
PIPE OUTLET TO FLAT AREA
NO WELL-DEFINED CHANNEL
PIPE OUTLET TO
WELL-DEFINED CHANNEL
VARIES
MINIMUM TRENCH WIDTHS
PIPE DIAMETER
MIN. TRENCH WIDTH
12"
30"
15"
34"
18"
39"
24"
48"
30"
56"
36"
64"
42"
72"
48"
80"
54"
88"
60"
96"
MAXIMUM COVER
PIPE
DIAMETER
CLASS
1
CLASS
II
CLASS
III
12
43'
28'
20'
15"
43'
28'
20'
18"
43'
28'
20'
24"
34'
23'
17'
30"
34'
23'
17'
36"
34'
23'
16'
42"
34'
23'
16'
48"
31'
21'
15'
54"
31'
21'
15'
60"
31'
21'
15'
w w
co *ASSUMED PIPE BACKFILL IS PLACED AND
COMPACTED TO THE REQUIRED 98%
OF THE STANDARD PROCTOR
NOTES:
1. ALL PIPE SYSTEMS SHALL BE INSTALLED IN ACCORDANCE WITH LATEST EDITION OF ASTM D2321, "STANDARD PRACTICE FOR UNDERGROUND
INSTALLATION OF THERMOPLASTIC PIPE FOR SEWERS AND OTHER GRAVITY FLOW APPLICATIONS", AND THE PROJECT SPECIFICATIONS.
2. MEASURES SHOULD BE TAKEN TO PREVENT MIGRATION OF NATIVE FINES INTO BACKFILL MATERIAL, WHEN REQUIRED.
3. FOUNDATION: WHERE THE TRENCH IS UNSTABLE, THE CONTRACTOR SHALL EXCAVATE TO A DEPTH REQUIRED BY THE ENGINEER AND REPLACE WITH
SUITABLE MATERIAL AS SPECIFIED BY THE ENGINEER. AS AN ALTERNATIVE AND AT THE DISCRETION OF THE DESIGN ENGINEER, THE TRENCH BOTTOM
MAY BE STABILIZED USING A GEOTEXTILE MATERIAL.
4. BEDDING: SUITABLE MATERIAL SHALL BE CLASS I, II, OR, III. THE CONTRACTOR SHALL PROVIDE DOCUMENTATION FOR MATERIAL SPECIFICATION TO
ENGINEER. UNLESS OTHERWISE NOTED BY THE ENGINEER, MINIMUM BEDDING THICKNESS SHALL BE 4"(100 mm) FOR 12"-24" (100 mm - 600 mm);
6"(150 mm) FOR 30"-60" (750 mm - 900 mm).
5. HAUNCHING/INITIAL BACKFILL: SUITABLE MATERIAL SHALL BE CLASS I, II, OR III IN THE PIPE ZONE EXTENDING NOT LESS THAN 6" ABOVE CROWN
OF PIPE. THE CONTRACTOR SHALL PROVIDE DOCUMENTATION FOR MATERIAL SPECIFICATION TO ENGINEER. MATERIAL SHALL BE INSTALLED AS
REQUIRED IN ASTM D2321, LATEST EDITION.
6. MINIMUM COVER: MINIMUM COVER, H, IN NON -TRAFFIC APPLICATIONS (GRASS OR LANDSCAPE AREAS) IS 12" FROM THE TOP OF PIPE TO GROUND
SURFACE. ADDITIONAL COVER MAY BE REQUIRED TO PREVENT FLOTATION. FOR TRAFFIC APPLICATIONS, MINIMUM COVER, H, IS 12" UP TO 48"
DIAMETER PIPE AND 24" OF COVER FOR 54"-60" DIAMETER PIPE, MEASURED FROM TOP OF PIPE TO BOTTOM OF FLEXIBLE PAVEMENT OR TO TOP
OF RIGID PAVEMENT. HEAVY CONSTRUCTION LOADS MAY REQUIRE ADDITIONAL COVER TO PROTECT THE PIPE. CONTRACTOR TO VERIFY THAT
CONSTRUCTION LOADS WILL NOT DAMAGE INSTALLED PIPES AND PROTECT INSTALLED PIPES IF REQUIRED.
7. MAXIMUM COVER: MAXIMUM COVER SHALL BE MEASURED FROM THE FINISHED SURFACE OF THE GROUND TO THE TOP OF THE PIPE, AND SHALL BE
LESS THAN THE MAXIMUM VALUES SHOWN IN THE CHART WITHIN THIS DETAIL.
D5.01 HDPE TRENCH INSTALLATION DETAIL
NOT TO SCALE
NOTE:
REFER TO GEOTECHNICAL
REPORT FOR MORE INFORMATION 24
D5.03 FRENCH DRAIN
NOT TO SCALE
FACE OF -
BUILDING
PLAN a
FLARED END PLAN SEE PLAN
SECTION MATERIAL La FOR
TO MATCH MATERIAL REMAINING
LIFTING OF INCOMING PIPE La WIDTH
RISER HOLES (4)
0
'----
SEE
SCHEDULE
LIFTING
24 HOLES (4)
0
WAFFLE BASE SEE
SCHEDULE
3"
3"
36" 6 36
Y
NOTES:
1. CONCRETE: 28 DAY COMPRESSIVE STRENGTH f'e= 4,000 psi
2. STEEL REINFORCEMENT: ASTM A-615, GRADE 60
3. WAFFLE BOXES MEET N.C.D.O.T. APPROVAL TO 10' DEPTH
4. SOLID BOXES MEET H-20 LOADING TO 15' DEPTH
5. SOLID BOXES APPROVED FOR N.C.D.O.T STANDARDS: 840.01, 840.02, 840.04,
840.05, 840.11, 840.12, 840.14, 840.15, 840.17, 840.18, 840.19, 840.26,
840.27, 840.28, 840.31, 840.32, 840.41, 840.45
TX T YARD INLET
D 5. 10 NOT TO SCALE
)R ACCESS
SEE SCHEDULE S REQUIRED
TOP SLAB
SEE
PLAN STRUCTURAL
DRAWING
FILTER BLANKET FILTER BLANKET
7"
SECTION AA SECTION AA
NOTES:
1. La IS THE LENGTH OF THE RIP RAP APRON.
2. d = 1.5 TIMES THE MAXIMUM STONE DIAMETER BUT NOT LESS THAN 6" (MINIMUM IS FLOOR
24" DEEP IF STONE IS CLASS II) SLAB
3. IN A WELL-DEFINED CHANNEL, EXTEND THE APRON UP THE CHANNEL BANKS TO AN
ELEVATION ELEVATION OF 6" ABOVE THE MAXIMUM TAILWATER DEPTH OR TO THE TOP OF THE
BANK, WHICHEVER IS LESS.
4. A FILTER BLANKET OR FILTER FABRIC SHOULD BE INSTALLED BETWEEN THE RIP RAP
NOTES: AND SOIL FOUNDATION.
1. THE DIMENSION OF THE THE FLARED END 5. COMPACT ANY REQUIRED FILL TO DENSITY OF SURROUNDING UNDISTURBED MATERIAL.
SECTION SHALL BE PER MANUFACTURER'S 6. RIP RAP MAY BE FIELDSTONE OR ROUGH QUARRY STONE AND SHALL BE HARD.
SPECIFICATIONS. ANGULAR AND WELL -GRADED. BUILDING
7. CONSTRUCT APRON AT ZERO GRADE. TOP OF RIP RAP SHALL BE LEVEL WITH THE FOOTER
2. THE SKIRT SECTION OF THE FLARED END RECEIVING CHANNEL OR SLIGHTLY LOWER.
SECTION SHOULD BE JOINED TO THE INCOMING 8. ALIGN APRON WITH RECEIVING CHANNEL OR STREAM. ASSURE APRON IS STRAIGHT
PIPE PER MANUFACTURER'S SPECIFICATIONS. THROUGHOUT ITS LENGTH.
9. END WIDTH OF APRON TO BE EQUAL TO WIDTH OF RECEIVING CHANNEL.
FLARED END SECTION WITH EXISTING GRADE
D5.07 RIP -RAP APRON
NOT TO SCALE
niono nin cu rn STONE WITH
%ND OVERLAP
SHED STONE AGGREGATE
'ERFORATED DRAIN PIPE (SIZE TO BE DESIGNATED BY ENGINEER)
FE:
E SHALL BE SLOPED TOWARDS
FILET AS INDICATED ON PLANS
UNDISTURBED EARTH OR
COMPACTED EARTH FILL
GEOTEXKI FILTER FABRIC
19" DEPTH AT BEGINNING POINT
6" PERFORATED PVC W/ FILTER SOCK
SLOPE AT 1% TO OUTLET (SEE PLAN)
8" SOLID PVC BETWEEN FRENCH DRAIN
& OUTLET- SCH. 80 PVC IF UNDER
ROADWAY TO OUTLET
#57 STONE
NONWOVEN GEOTEXTILE
FABRIC- SEE SPECS
6" TOP DRESS W/ 3/4" SIZE/
SPEC'D STONE
4" DEPTH RIVER ROCK- (LANDSCAPE
SUBCONTRACTOR) 1"-3" STONE (SEE SPEC)
NONWOVEN GEOTEXTILE FABRIC- SEE
SPECS (LANDSCAPE SUBCONTRACTOR)
-2% MIN.
3/16" X 5.5" METAL
EDGING REQUIRED AT STONE iv
PERIMETER (EXCEPT WHEN
ADJACENT TO CONC. WALK
OR WALL)- SEE SPECS
ADJACENT SURFACE
(SEE PLAN FOR TYPE)
D5.04 FRENCH DRAIN DETAIL
NOT TO SCALE
GENERAL NOTES FOR STORM
1. ALL STORM INSTALLATION ON THIS SITE MUST BE AUTHORIZED BY PERMITS ISSUED BY THE
NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY (NCDEQ). ALL SITEWORK
SHALL BE IN ACCORDANCE WITH ALL LOCAL, STATE, AND NATIONAL REGULATORY
STANDARDS AND ALL REQUIREMENTS IN THE PROJECT TECHNICAL SPECIFICATIONS.
2. CONTRACTOR TO VERIFY WITH ENGINEER THAT THE REQUIRED STORMWATER, AND
ASSOCIATED NON -GRADING PERMITS HAVE BEEN OBTAINED PRIOR TO BEGINNING
CONSTRUCTION.
3. ALL CONSTRUCTION SHALL BE UNDER THE INSPECTION OF THE ENGINEER, THE OWNER, AND
NCDEQ. THE CONTRACTOR SHALL NOTIFY THE ENGINEER 72 HOURS PRIOR TO BEGINNING
WORK. ANY WORK COVERED PRIOR TO ENGINEER'S INSPECTION IS SUBJECT TO UNCOVERING
AND BACKFILLING AT THE CONTRACTOR'S EXPENSE.
4. ALL WORK MUST BE PERFORMED BY A NORTH CAROLINA LICENSED CONTRACTOR.
5. CONTRACTOR IS RESPONSIBLE FOR LOCATING AND VERIFYING THE EXACT LOCATION AND
ELEVATION FOR ALL UTILITIES PRIOR TO CONSTRUCTION; AND TO NOTIFY ENGINEER OF ANY
CONFLICTS OR DISCREPANCIES. THE LOCATION OF SOME UTILITIES SHOWN ON THE PLANS
HAVE BEEN APPROXIMATED. ALL BURIED UTILITIES HAVE NOT BEEN SHOWN ON THE PLANS
AND IT IS THE CONTRACTOR'S RESPONSIBILITY TO DETERMINE THEIR LOCATION PRIOR TO
CONSTRUCTION.
6. PROTECT EXISTING SITE FEATURES (SHOWN TO REMAIN) AND NEWLY COMPLETED WORK
DURING CONSTRUCTION. ANY DAMAGE INCURRED DURING OR RESULTING FROM
CONSTRUCTION ACTIVITY IS THE RESPONSIBILITY OF THE CONTRACTOR AND IS TO BE
REPAIRED IN ACCORDANCE WITH APPLICABLE STANDARDS OF APPROPRIATE AGENCIES, AS
WELL AS THE PROJECT PLANS AND SPECIFICATIONS, AT THE CONTRACTOR'S EXPENSE.
7. THE CONTRACTOR IS TO NOTIFY ALL UTILITY COMPANIES AT LEAST 72 HOURS BEFORE
CONSTRUCTION ACTIVITY IS TO BEGIN. THE CONTRACTOR SHALL NOTIFY NC ONE CALL AT
811, 48 HOURS BEFORE CONSTRUCTION BEGINS. NOTIFY THE ENGINEER AT LEAST 72
HOURS BEFORE STARTING CONSTRUCTION ACTIVITIES.
8. EROSION CONTROL IS FIELD PERFORMANCE BASED AND CONTRACTOR SHALL INSTALL AND
MAINTAIN ANY EROSION CONTROL MEASURES NECESSARY TO ASSURE MAXIMUM
PROTECTION OF THE SITE. CONTRACTOR IS RESPONSIBLE FOR EROSION CONTROL
MEASURES REQUIRED TO CONTROL SEDIMENT DURING INSTALLATION ALL STORM PIPES AND
APPURTENANCES..
9. CONTRACTOR IS RESPONSIBLE FOR INSTALLING, MAINTAINING, AND REMOVING ALL
NECESSARY EROSION AND SEDIMENTATION CONTROL MEASURES.
10. THE CONTRACTOR IS RESPONSIBLE FOR THE COORDINATION OF ADJUSTMENT OF ALL
UTILITY SURFACE ACCESSES WHETHER THE CONTRACTOR PERFORMS THE WORK OR A
UTILITY COMPANY PERFORMS THE WORK.
11. ALL HIGH DENSITY POLYETHYLENE (HDPE) CORRUGATED STORM SEWER DETENTION PIPE
SHALL BE TYPE "S" HANCOR SURELOK ADSN12 OR APPROVED EQUIVALENT WITH WATER
TIGHT JOINTS MEETING AASHTO M252, M294 OR MP7. ALL HDPE PIPE IS TO BE INSTALLED
ACCORDINGLY TO MANUFACTURERS SPECIFICATIONS AND IN ACCORDANCE WITH ASTM D2321
WITH THE EXCEPTION THAT MINIMUM COVER IN TRAFFIC LOAD AREA SHALL BE 24" FOR
4"-48" AND 18" FOR 60". PIPE MATERIAL SHALL MEET THE PRODUCT SPECIFICATIONS OF
ASTM F667 AND SHALL HAVE A SMOOTH WALL INTERIOR. FOR ALL STORM SYSTEMS, WORK
MUST BEGIN AT THE LOW POINT OF THE SYSTEMS. NOTIFY THE ENGINEER IMMEDIATELY OF
ANY VARIANCES FROM EXPECTED CONDITIONS.
12. CURB INLET FRAME, GRATE AND HOOD SHALL CONFORM TO NCDOT 840.03E. DROP INLET
FRAME AND GRATE SHALL CONFORM TO NCDOT 840.16. FIELD INLET COVER SHALL
CONFORM TO NCDOT STANDARD DETAIL 840.03, OPENING FACING UPSTREAM. MANHOLE
RING AND LID TO CONFORM TO NCDOT 840.54. OPEN THROAT INLETS TO CONFORM TO
NCDOT 840.04 WITH A MANHOLE RING AND LID INSTALLED IN THE TOP FOR ACCESS TO
THE STRUCTURE. SET ACCESS POINT ADJACENT TO A STRUCTURE WALL AS TO ALLOW
ACCESS TO STEPS.
13. CONCRETE AND MASONRY SHALL MEET THE REQUIREMENTS OF APPROPRIATE SECTION OF
NCDOT STANDARD SPECIFICATIONS FOR ROAD AND STRUCTURES (LATEST EDITION).
CONCRETE SHALL BE CLASS A OR B, 4000 PSI MINIMUM, MEETING THE REQUIREMENTS OF
SECTION 900, CONSTRUCTED IN ACCORDANCE WITH SECTION 825. MASONRY SHALL MEET
THE REQUIREMENTS OF SECTION 940, CONSTRUCTED IN ACCORDANCE WITH SECTION 830
AND/OR 834.
14. TRENCH BACKFILL AND COMPACTION TESTING SHALL BE PERFORMED BY A CERTIFIED SOILS
LABORATORY UNDER ALL PAVED AREAS.
15. COMPACTION REPORTS MUST BE PROVIDED TO NCDEQ STORMWATER SERVICES DIVISION
INDICATING THAT FILL HAS BEEN COMPACTED TO NOT LESS THAN 95% MAXIMUM DENSITY
(STANDARD PROCTOR).
SHALLOW TYPE
(5 FEET OR LESS IN DEPTH)
INTERMEDIATE TYPE (4'X4' INTERIOR)
(5 FEET TO 20 FEET IN DEPTH)
o
STANDARD STANDARD C�
s" MIN
36"
STEPS 16" STEPS 16" ON
r ON CENTER CENTER
/
6" MIN. �
0
'�/Z
N1151,
r
MIN 6" WASHED
N �
STONE BEDDING
SEE NOTE 'B' BELOW
SEE NOTE 'B' BELOW
5" Mir
6" Mir
SEE NOTE 'B' BELOW - STONE BEDDING
NOTE 'A'
FOR CURB INLET: FRAME, GRATE & HOOD PER D.O.T. STD. 840.03E
FOR GRATE INLET: FRAME, GRATE & HOOD PER D.O.T. STD. 840.16
FOR JUNCTION BOX: FRAME & COVER PER D.O.T. STD. 840.54
FOR CONVEX INLET: FRAME, GRATE & HOOD PER NEENAH CONVEX
INLET GRATE R-2577
NOTE 'B': STRUCTURE BOTTOM DEPTHS
2'X3' CURB/GRATE INLET: 6"
4'X4' JUNCTION BOX: 12"
4' ROUND CURB/GRATE INLET: 24"
5' ROUND CURB/GRATE INLET: 24"
6' ROUND CURB/GRATE INLET: 36"
NOTES:
60"
1. CONCRETE SHALL BE 4000 PSI MIN. FOR ALL PRECAST
CONCRETE CATCH BASINS.
2. PRECAST CONCRETE STRUCTURES MAY ONLY BE INSTALLED 26"
TO DEPTHS CERTIFIED AS ACCEPTABLE BY THE 60"
MANUFACTURER.
3. "WAFFLE" BOXES ARE ACCEPTABLE FOR SHALLOW TYPE
CATCH BASINS UP TO 10' DEEP PER D.O.T.
4. PRECAST CONCRETE CATCH BASINS SHALL CONFORM TO SLAB DETAIL
NCDOT STD. 840.02.
36"
-48"-
O,
yy.1<5,
1r
REINFORCED
CONCRETE SLAB
MIN. 6" WASHED
STONE BEDDING
SEE NOTE 'B' BELOW J
_ 6" SLAB THICKNESS
AND REINFORCEMENT
FOR SOIL AND
36" TRAFFIC LOADING BY
AN ENGINEER
PRECAST CONCRETE CATCH BASIN DETAILS FOR
D5.02 GRATE INLETS, CURB INLETS, AND JUNCTION BOXES
NOT TO SCALE
WATAUGA COUNTY
VALLE CRUCIS SCHOOL
BROADSTONE ROAD
VALLE CRUCIS, NC
SCO ##
CODE:
ITEM:
DESIGNER
I I
I I
CLA_R_KN_EXSEN _J
CLARK INtxSEIV LICENSE NUMBER:
C-1028
ONSULTANIT
1111
C C
Civil
Design
Concepts, PA
ASHEVILLE OFFICE WAYNESVILLE OFFICE
168 PATTON AVENUE 52 WALNUT STREET - SUITE 9
ASHEVILLE, NC 28805 WAYNESVILLE, NC 28786
PHONE [phone] PHONE [phone]
FAX [phone] FAX [phone]
NCBELS LICENSE #: C-2184 www.eivildesignconcepts.com
CORPORATESEAL
PROFESSIONAL SEAL
oQ �o
SEAL
035093 0o=
° _
04/08/2022
PERMIT DRAWINGS
REVISIONS
1 01/13/2022 DESIGN DEVELOPMENT
2 04/01/2022 EC / STORM / NCDOT SUBMITTAL
STORM DRAINAGE
DETAILS
DESIGN:
GRH
DRAWN:
SAK
REVIEW:
GRH
C951
CN 6832

LLI
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Ir
WATAUGA COUNTY
VALLE CRUCIS SCHOOL
BROADSTONE ROAD
VALLE CRUCIS, NC
SCO #
CODE:
ITEM:
DESIGNER
— -
CLA_R-KN-E_SEN
CLARK INtxSEIV LICENSE NUMBER:
C-1028
Civil
Design
Concepts, PA
ASHEVILLE OFFICE WAYNESVILLE OFFICE
168 PATTON AVENUE 52 WALNUT STREET - SUITE 9
ASHEVILLE, NC 28805 WAYNESVILLE, NC 28786
PHONE [phone] PHONE [phone]
FAX [phone] FAX [phone]
NCBELS LICENSE #: C-2184 www.eivildesignconcepts.com
CORPORATESEAL
PROFESSIONAL SEAL
0
oQ o ;
SEAL
03 093 _
���
o�,y o°NoF
04/08/2022
PERMIT DRAWINGS
REVISIONS
1 01/13/2022 DESIGN DEVELOPMENT
2 04/01/2022 EC / STORM / NCDOT SUBMITTAL
KEY PLAN
STORM BMP DETAILS
C952
DESIGN: GRH
DRAWN: SAK CN 6832
REVIEW: GRH

LLI
1_
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Ir
E
0
C
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u
WATAUGA COUNTY
VALLE CRUCIS SCHOOL
BROADSTONE ROAD
VALLE CRUCIS, NC
SCO #
CODE:
ITEM:
DESIGNER
CLA_R-KN-E_SEN
CLAkK INtxSEIV LICENSE NUMBER:
C-1028
Civil
Design
Concepts, PA
ASHEVILLE OFFICE WAYNESVILLE OFFICE
168 PATTON AVENUE 52 WALNUT STREET - SUITE 9
ASHEVILLE, NC 28805 WAYNESVILLE, NC 28786
PHONE [phone] PHONE [phone]
FAX [phone] FAX [phone]
NCBELS LICENSE #: C-2184 www.eivildesignconcepts.com
CORPORATESEAL
PROFESSIONAL SEAL
A�l
rSEAL
o
0 035093 00=
Ry000o NoF
04/08/2022
PERMIT DRAWINGS
REVISIONS
1 01/13/2022 DESIGN DEVELOPMENT
2 04/01/2022 EC / STORM / NCDOT SUBMITTAL
KEY PLAN
STORM BMP DETAILS
C953
DESIGN: GRH
DRAWN: SAK CN 6832
REVIEW: GRH

1
2
5
WATAUGA COUNTY
VALLE CRUCIS SCHOOL
E
C
191
0
LLI
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!Y
MOUND STABILRATION AND MATERIALS HANDLING PRACTICES FOR COMPLIANCE WITH
"HE NCG01 0ONSTRUCTIC1114 GENERAL PERMIT
nplementing the details and specifications on this plan sheet will result in the construction
ctivity being considered compliant with the Ground Stabilization and Materials Handling
ectlons of the NCG01 Construction General Permit (Sections E and F. respectively), The
ermittee small comply with the Erosion and Sediment Control plan approved by the
Delegated authority having jurisdiction. All details and specifications shown on this sheet
day not apply depending on site conditions and the delegated authority having jurisdiction.
IECTION E. GROUND STABiUZATiON
Required Ground Stabilization Timeframes
Stabilize within this
Site Area Description
many calendar
Timefrime variations
days after ceasing
land disturbance
i;aj Perimeter dikes,
swales, ditches, and
7
None
perimeter slopes
i b) High Quality Water
7
None
[HQW) Zones
r;c) Slopes steeper than
If slopes are 10' or less in lerrm ant arc
3:1
7
not steeper than 2:1, 14 days are
allowed
-7 days for slopes greater than 50' in
length and with slopes steeper than 4:1
-7 days for perimeter dikes, swales,
id') $lopes 3:1 to a
14
ditches, perimeter slopes and HQ%V
Zones
-10 days for Falls Lake Watershed
-7 days for perimeter dikes, swble ;,
(e) Areas with slopes
ditches, perimeter slopes and HQW Zones
flatter than 4.1
14
-10 days for Falls Lake Watershed unless
there is zero slope
late: After the permanent cessation of construction activities, any areas with temporary
;round stabilization shall be converted to permanent ground stabilization as soon as
practicable but in no use longer than 90 calendar days after the last land disturbing
ctivity. Temporary ground stabilization shall be maintained in a manner to render the
urface stable against accelerated erosion until permanent ground stabilization is achieved.
GROUND STABILIZATION SPECIFICATION
tabilize the ground sufficiently so that rain will not dislodge the soil. Use one of the
echniques in the table below:
TnnpOrary Stibillmlfon_
• Temporary grass Seed covered with straw or
older mulches. acid tackiliers
• Wdroseed ing
■ Roiled crown control products with or
without temporary brass seed
• Appropriately applied straw or other mulch
• Pticstic sheatin&
Pwmanavt SlobilizWon
■ Permanent ,glass Seed Covered with straw Ix
other matches and tackiliiers
a Geotextile tabrics such as perrAerlent soil
reinforcement nsatting
Hi ,droseeding
e Shrubs or other permanem plantings covered
wi th rriuich
e Uniform And overtly de-tributed grtumd cawr
sufficient to restrain erosion
a Structurar mathads such as conc(ete, asphalt 1:1 r
retaining wdlls
. Roied erosion controlproducts with grass -3'n rl
POLYAC - LAMiDES (PAPS) AND FLOCCULANTS
t Select tic€cuiants that are appropriate for the soils being exposed during
construction, selecting from the NC DWR List vf Approved PAMSIFiocrccrlbnrs.
2. Apply flocculants at or before the inlets to Erosion and Sediment Control Measures,
3. Apply flocculants at the concentrations specified in the NC D1+10R List of Approved
PAMS,#focculbnrs and in accordance with the manufacturer's instructions.
. Provide ponding area for containment of treated 5tormwate► before discharging
e ffsite.
5. Store floccufants in leak -proof containers that are kept under storm -resistant cover
or surrounded by secondary containment structures.
EQUIPMENT AND VEHICLE MAINTENANCE
I. Maintain vehicles and equipment to prevent discharge of fluids.
2. Provide drip pans under any stored equipment.
3. identify leaks and repair as soon as feasible, or remove leaking equipment from the
project.
4. Collect all spent fluids, store in separate containers and properly d ispose as
hazardoos waste (recycle when possible).
5. Remove leaking vehicles and construction equipment from service until the problem
has been corrected.
6. Sting used fuels, lubricants, coolants, hydraulic fluids and other petroleum products
to a recycling or disposal center that handles these materials.
LETTER, BUILDING MATERIAL AND LAND CLEARING WASTE
1, Never buryor bum waste. Place litter and debris in approved waste containers.
2. Provide a sufficient number and size of waste containers [e-gdumpster, trash
receptacle) on site to contain construction and domestic wastes.
3- Locate waste containers at least 50 feet away from storm drain inlets and surface
waters unless no other alternatives are reasonably available.
4. Locate waste containers on areas that do not receive substantial amounts of runoff
from upland areas and does not drain directly to a storm drain, stream or wetland.
S. Cover waste containers at the and of each workday and before storm events or
provide secondary containment. Repair or replace damaged waste containers.
C Anchor all lightweight items in waste containers during times of high winds.
7. Empty waste containers as needed to prevent overflow, Clean up immediately if
containers overflow.
8. 01spose waste off -site at an approved disposal facility.
9. On business days, clean up and dispose of waste in designated waste container`s.
PAINT AND OTHER LIQUID WASTE
1. Do not dump paint and other liquid waste into storm drains, streams or wetiaros
2. Locate paint washouts at least 50 feet away from storm drain inlets and surface
waters unless no other alternatives are reasonably available.
3. Contain liquid wastes in a controlled area.
4. Containment must be labeled, sized and placed appropriately for the needs of site,
5. Prevent the discharge of soaps, solvents, detergents and other liquid wastes from
constructron sites.
PORTABLE TOILETS
i. Install portable toilets on level ground, at least 50 fact away from storm drains,
streams or wetlands unless there is no alternative reasonably available. If 50 foot
offset is not attainable, provide relocation of portable toilet behind silt fence or place
on a gravel pad and surround with sand bags.
2. Provide staking or anchoring of portable toilets during periods of high winds or In high
foot traffic areas.
3. Monitr t portable toilets for leaking and properiV dispose of any leaked material_
Utilize a licensed sanitary waste hauler to remove leaking portable toilets and replace
with properly operating unit.
EARTHEN STOCKPILE MANAGEMENT
�__■■.a, •-ram ?.
r ►ii ail
wr -
i�J
c
CONCRETE WASHOUTS
1. Cn not oischarge concrete or cement slurry from the site.
2. Dispose of, or recycle settled, hardened concrete residue in accordance with local
a nd state solid waste regulations and at a n a pproved facility.
3. Manage washout from mortar mixers in accordance with the above item and in
addition place the mixer and associated materials on impervious barrier and within
lot perimeter sift fence.
4. install temporary concrete washouts per local requirements, where applicable. If an
alternate method or product is to be used, contact your approval authority for
review and approval. If local standard details are not available, use one of the two
types of temporary concrete washouts provided on this detail.
5. Do not use concrete washouts forde:watering or staringdefective curb or sidewalk
sections. Stormwater accumulated within the washout may not be pumped into or
discharged to the storm drain system or receiving surface waters. Liquid waste must
be pumped out and removed from project.
6. Locate washouts at least So feet from storm drain Inlets and surface waters unless it
can be shown that no other alternatives are reasonably available. At a minimum,
install protection of storm drain inlets) closest to the washout which could receive
spills or overflow.
7, Locate washouts in an easily accessible area, on level ground and insta11 a stone
entrance pad in front of the washout- Additional controls may be required by the
approving authority.
8. Install at least one sign directing concrete tucks to the washout within the project
limits. Post signage on the washout itself to identify this location.
9. Remove leavings from the washoutwhen at approximately 75%capanty to limit
overflow events. Replace the tarp, sand bags or other temporary structural
components when no longer functional. When utilizing alternative or proprietary
products, follow manufacturer's instructions.
10. At the completion of the concrete work, remove remaining leavings and dispose of
in an approved disposal facility. Fill pit, it applicable, and stabilize any disturbance
caused by removal of washout,
HERBICIDES, PESTICIDES AND RODEN'TICIDES
1, Store and apply herbicides, pesticides and rodenticides in accordance with labe
restrictions.
2. Store herbicides, pesticides and rodenticides in their original containers wins the
label, which hats directions for use, ingredients and first aid steps in case of
accidental poisoning.
3. Do not store herbicides, pesticides and rodenticides in areas where flooding is
possible or where they may spill or leak into wells, stormwater drains, ground water
or. surface water. If a spill occurs, clean area immediately.
4. Do not stockpile these materials onsrte.
WARDOUSAND TOXIC WASTE
1. Create designated hazardous waste tollectoon areas on -site.
2_ Place hazardous waste containers undercover or in secondary containment.
r NORTH GAROLI NA a. Do not store hazardous chemicals, drums or bagged materials directly on the ground.
Environmental Quality
NCGOI GROUND STABILIZATION AND MATFRIALS HANDLING
PART III
SELF -INSPECTION, RE CORD KEEPING AND REPOftTING
SECTION A: SELF -INSPECTION
Setf-inspections are required during normal business hours in accordance with the table
below. When adverse weather or site conditions would cause the safety of the inspection
personnel to be In jeopardy, the inspection may be delayed until the next business day on
which it is safe to perform the inspection. In addition, when a storm event of equal to or
greater than 1.0 inch oevurs outside of normal business hours, the self -inspection shall be
performed upon the commencement of the next business day. Any time when inspections
were delayed shall be noted in the Inspection Record.
Frepyr<ncy
Impett (dur" rwm W
In"wertion march retie inck4e.-
tsuaimns hours)
tl Rain Raurr DON
"N rainrall ammants
marntawnedit
if no diuy ra•n &uili• e6wreallnns are made dunrl wrrlend or
e006 workil;
ilcllday periods, aid no irehiduai day rainfall inlmmatfon is
7d4of
ava7ahir. rergrd the t4muwrtre rain mea!wrovow for die>,se• up
Attwoesad 0AY9, tans this *All deeermlne if a woe nspection is
eerdvd� Days con which no raw+fall occurred sh411 brsecorded as
-sera " the permi"e may use anoltw rvin•manitwru demg
appgoved.by the ohWon
121 E&SC Rt k-ast once pn I
S. IkerArkAJon of Uta measures inspected.
molasvfes 7 tWr%l r drys
x Wtc card twe c or the Inspe coon.
and within 24
1 Name cA the perm+ po rikarr+ing the imprceion,
Mots Ora rain
S, todtatiM or wtwthrr the rneepwas weft opetmiks
gwgnt t 1.0 inch a+
property,
34 hours
S. Description of w aittmance needs for the n i eawte.
& Wurwion. edd~. and dam of cortmo c actions taken.
131 Stornv razz At bast once per
1 kW01$cvkw or die dhdi4rje outlalh, inspected,
sscI-QW 7 cah"Wriv drys
2. Dare ar.d tirir of tho inspection,
•1tl61k (soesl and within 24
3, flame df the prrwn performing the Inspection.
lmur%ceA rAin
4. Evk1mv-►al Ind co:nrs of star rrwarrr polkatm Stich Rs Olt
evert 2 U0 inch in
gicen. floati'e or s,- p cd sdkws or discckwadcok
24 tows
S. lndk atia+ of s+siue sadirriem kasing the sale.
6. Msrri ion, evidence w d date ae wivwwa aeriam Iaken.
ci Puimntrr or Ae Ira►! once par
Ir ►isitrlr W dWrWritation is found outride site IiWee, then a retard
+tc 7 okendar days
01 the'k+tiov*v *411 be made:
and within 24
L ActiiBM takes+ to elfin up ar rtabdeo the tedinwo thin has loft
Bevis of a rain
t" she limits.
8we nt 2 i o inch in
] IYlsrrwplion. •tadRYF raid dAle of rOfrrKf lrr achcrr[ lal,an, and
24 taws
3- An empicioartion as to the actions ukr+n to control future
rNnasers.
' ) ,0'earns 4r M %*"I once per
If tt* ftieari at wrtbod has Increased vkibie 3r4k%*ntatW or a
r,ntiands drag 7 eaan+dar days
stream has Yltbhr LO(reaW4 turbidity hem ire 9oinvuction
-■ otfsite and within 24
aUl ft tlr.en a record or the soltoweng %Isar be wade-
ncrers• Man Or A rain
t prenrlplkm. *reduce and date of cnrrrurrr taken, and
imcm0blel c%*Pt! 10 inch in
Z. Rocorck of the required roporu to ttse appropriate owmaan
24 t►eaars
R nM OMre per Part u l 5e [lien C. ttrm;x 1 of errs perm[
7. tie phmo of gracirs tinvAlbu*0 of pneimalar 4Asc
1481aratln41 Idler each phut
ctahllimian of gradirlR
nwsufes, (lniri 4 and wubbwrt. mtrallatiorl of storm
mnssures
dralnrge racll"WL compleme at as qnd erstrrhrig
actf.ky, tan►1tudiw or radave6 mcnt, painunent
tround cover).
]. namwentaeion tkat the rrgsand emend onAbScsuinn
mauures hate brm piovidm wthh the rep. wed
umefraW or an a$Wrawe chit they wsa be yromded as
xrnn rr p�.t;lrk .
NOTE: The rain inspection resets
the required 7 calendar day Inspection requlrernent,
1. Show stockpile locations on plans. Locate carthen•material stockpile areas at least
50 feet away from storm drain inlets, sediment basins, perimeter sediment controls
and surface waters unless It can be shown no other alternatives are reasonably
available.
2. Protect stockpile with silt fence Installed along toe of slope with a minimum offset of
five feet from the toe of stockpile.
3. Provide stable stone access point when feasible.
4. Stabilize stockpile within the tmeframes provided on this sheet and in accordance
with the approved plan and any additional requirements. Soil stabilization is defined
as vegetative, physical or chemical coverage techniques that will restrain accelerated
erosion on disturbed soils for temporary or permanent control needs.
PART III
SELF -INSPECTION, RECOROIKEEPING AND REPORTING
SECION B: RECOROxEEPiNG
1, E&SC Plan Documentation
The approved F&SC plan as well as any approved deviation shall be kept on the site_ The
approved E&SC plan must be kept up-tGAate throughout the coverage under this permit
The following items pertaining to the E&SC plan shall be inept on site and available for
inspection at all times during normal business hours.
Item to Document
Documentation Re*drements
fa) Each E&SC measure has been Installed
Initial and date each E&SC measure on a copy
and does not sillnirscandy deviate from the
of the approved E&SC plan or complete, date
locations, dimenuons and relatne eifwttioru
and sign an inspection report that lists each
shown on the approved E&SC plan.
E&SC measure shown on the approved E&SC
plan. Thh. documentation is required upon the
initial installation of the E&SC measures or 4
the 9&SC measures are modified after initial
knstallatiom
(b) A phew of grading has keen completer#.
tnitialand date acopy of the approved E&SC
plan or complete, date and sign an inspection
report to indicate completion of the
construction phase.
40 Ground cover is located and installed
Initial and date a copy of thfr approved E&SC
In accordance with the approved EaSC
plan or complete, date and sign an Inspection
plan.
report to indicate compliance with approved
ground cover specifications.
01i The maintvnanco and repair
cornplote, data and sign an inspft on reporr.
requirements for all E&SC measures
have boon porkemrd,
(el Corrective atxians have been taken
initial and Bate a copy of the approved [&SC
to E&SC rneawres.
plan or complete, date and sign an inspectcon
report to indicate the completion of the
corrective action.
2- Additlonai Documentation to be Kept on Site
In addition to the E&SC pie documents above, the following items shall be kept on the
site and available for inspectors at all times du ring nor ma I business hours, u n less the
Division provides a site -specific exemption based on unique site conditions that make
this requirement not practical:
(a) This General Permit as well as the Certificate of Coverage, after It is received.
(b) Records of Inspections made during the previous twelve months. The permlaee shall
record the required observations on the inspection Record Form provided by the
Division or a similar inspection form that includes all the required elements. Use of
electronically -available: records in lieu of the required paper copies will be allowed if
shown to provide equal access and utility as the hard -copy records.
3, Docurnentatian to be Retained for Three Years
Ali data used to complete the a-NOI and ail Inspection records shall be maintained for a period
of three years after project completion and made avallable upon request. 140 CFR 122,41]
PART II, SECTION G, ITEM (4)
DRAW DOWN OF SEDIMENT BASINS FOR MAINTENANCE OR CLOSE OUT
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 doyen
for maintenance or cbme out unless this is inferasible.. The circumstances in which it is not feasible to withdraw water from the surface shall be rare (for e:xampie., timers with extended cold wettthr.r),I
Non -surface withdrawals from sediment basins shall be allowed only vAen all of the following criteria have been met:
(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
shall not corrimmnce until the E&SC plan authority has approved these items,
(b) The non -surface withdrawal has been reported as an anticipated bypass in accordance with Part III, Section C, item (2)[cI and [dI of this permit,
(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
properly sited, designed and maintained dewatering tanks, weir tanks, and filtration systems,
(d) Vegetated, upland areas of the sites or a properly designed stone pad is used to the extent feasible at the outlet of the dewatering treatment devices described in ftem (c) above,
(e) Velocity dissipation devices such as check dams, sediment traps, and riprap a re provided at the discharge points of all dewateririg devices, and
[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 Unfted States -
EFFECTIVE: 04/01 / 19
PART III
SELF4NSPECTION, RECORDI(EEPING AND REPORTING
SECTION C: REPORTING
1, Occurrences that Must be Reported
Permrttees shall report the following occurrences:
(a) Visible sediment deposition in; stream or wetland.
(b) OH spills if:
• They are 25 gallons Or more,
r They are less than 25 gallons but cannot be cleaned up within 24 hours,
s They cause sheen on surface waters (regardless of volume), or
a They are within 100 feet of surface waters (regardless of volume).
(c) Releases of hazardous substances in excess of reportable quantities under Section 311
of the Clean Water Art (Ref: 40 CFR 110.3 and 40 CFR 117.3) or Section 102 of CERCLA
(Rc:f: 40 CFR 302A) or 6S. 143.215.85.
(d) Anticipated bypasses and unanticipated bypasses_
[e) Noncompliance with the conditions of this permit that may endanger health or the
environment.
2. Reporting Timeframes and Other Requiremertts
After a permittee becomes aware of an occurrence that must be reported, he shall Ccntd
the appropriate Division regional office within the tmeframes and in accordance with the
other requirements listed below. Occurrences outside normal business hours may also be
reported to the Department's Environmental Emergency Center personnel at (800)
858.036&
Occurrence
(a) Yaible sediment
depos"o in a
f1l MOM pr wiptl)n.I
(b) 0HI spits and
rc-* use of
hazardous
substances per item
W Anticipated
typasses I4o CrR
1Z2.4t(ml(3))
0UnanWpated
bypasses (40 CFR
122A 1(m)(3))
(e) Noncompliance
v+tfeh the conditions
of this permit that
may endinger
health at the
onvironmant(40
CFR 122A2(1X711
Reporting TIrrlNrame$ JAher Dbooveryl and Either Requireen►ents
a Wthrn 24 hours, in oral or electronic not lfkcation.
• Within 7 torendar days, a report that contains 41 dose 6ption of tho
sadimern and action: taken to address tree cause of the deposition.
Division stmf may wbicvo the r"Uifemcnt fora wfitten report an a
case -by -rase basis.
• I the stream is narnrdon the NC 303(d) Iigt as Impaand for sedimeni-
related causes, the permittee may be r4cquWc4 to prrlorm additiorwl
mocvtoeirig, Inspections ot apply more strsngant practices if staff
determine that additional requirements are needed torassura complonce
with the rederal or state imaallmd-waters conditions.
• IWfhlim 24 herrm, an anal or elearonie oat iTtcation. The notification
Shall mckide inlormnion about the date, time, nature. volume and
location al the spill ce relonle.
a A report of least rm days before tht dare of the bypass, if possible.
The ragert $hail include an aratualion of the anthtIpatrd quality and
effM_ of the bypass.
• within Z4 hour, an oral or electronic notirlcatio,.
e WhAin 7 cal'endar dtfysi, a report that intrudes an evaluatcon of the
quality and effect ofthe trypass.
• Wirhin 24 hours, as oral or 0eafonic notification.
■ Within 7 om ndar do$. a report chat contains a description or the
aoncomplibrce, and its. catdit; the period of ewncorriphance,
iocluding a:aa dates aced tifnes. and if she noncompliance has riot
been eoree ded, the anticipated time noncompliance is expected to
continue, and steps taken or planned to reduce, eliminate, and
prevent reoacurrancr of the noncompliance. (40 CFR 222A1(I)(6).
• Oivkion staff may waive the fcquilemRnt lot a written report on a
_PNORTH CAROLING+
Envirvnmenta! Quality
NC01
BROADSTONE ROAD
VALLE CRUCIS, NC
SCO #
CODE:
ITEM:
DESIGNER
CLA_R-KN-E_XSEN
GL_AKK IvtASEN LICENSE NUMBER:
C-1028
r
Civil
Design
Concepts, PA
ASHEVILLE OFFICE
WAYNESVILLE OFFICE
168 PATTON AVENUE
52 WALNUT STREET - SUITE 9
ASHEVILLE, NC 28805
WAYNESVILLE, NC 28786
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PHONE [phone]
FAX [phone]
FAX [phone]
NCBELS LICENSE #: C-2164
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CORPORATESEAL
PROFESSIONAL SEAL
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SEAL -
o, 035093 0 =
04/08/2022
PERMIT DRAWINGS
REVISIONS
1 01/13/2022 DESIGN DEVELOPMENT
2 04/01/2022 EC / STORM / NCDOT SUBMITTAL
KEY PLAN
C998
NCGO1 SELF -INSPECTION, RECORDKEEPING AND REPORTING I EFFECTIVE: 04/01/19I
DESIGN: GRH
DRAWN: SAK CN 6832
REVIEW: GRH