20171294 Ver 1_Sealed Plans_20190801

Strickland, Bev
From: Kasey Carrere <[e-mail]>
Sent: Thursday, August 01, 2019 10:17 AM
To: Steve Kichefski; Haupt, Mac
Cc: Bradley Breslow; Kim Browning; Davis, Erin B; Benton Carroll
Subject: [External] Twiman Site Dam Breach
Attachments: 2019-07-19 - Twiman Dam Breach Sealed Plans.pdf
Follow Up Flag: Follow up
Flag Status: Flagged
External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
[e-mail]
Good Morning Steve and Mac,
I am reaching out to notify you that we are preparing to submit our sediment and erosion control permit application to
Yadkin County for the dam breaches at the Twiman Site. These are both non-regulated dams and we will not be placing
fill in any of the wetlands on site. We are assuming no formal notification or 404/401 permitting is required for this
activity. The S&EC permit is for the dam breaches only, as the mitigation plan and associated PCN are currently in
review with the IRT. Once a final mitigation plan is approved we will move forward with the normal progression of S&EC
permitting related to the stream restoration. I've attached the dam breach plans for your reference. Please let me
know if you have any questions or would like to discuss further. No reply is necessary unless there is a concern with this
approach.
Thanks,
Kasey Carrere
Project Manager
RES I res.us
Direct: 919.209.1066 1 Mobile: [phone]

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Call before you dig
NOTICE TO CONTRACTOR
PRIOR TO CONSTRUCTION, DIGGING, OR EXCAVATION THE
CONTRACTOR IS RESPONSIBLE FOR LOCATING ALL UNDERGROUND
UTILITIES (PUBLIC OR PRIVATE) THAT MAY EXIST AND CROSS THROUGH
THE AREA(S) OF CONSTRUCTION, WHETHER INDICATED ON THE PLANS
OR NOT. CALL"811 A MINIMUM OF 72 HOURS PRIOR TO DIGGING OR
EXCAVATING. REPAIRS TO ANY UTILITY DAMAGED RESULTING FROM
CONSTRUCTION ACTIVITIES SHALL BE THE RESPONSIBILITY OF THE
CONTRACTOR.
REV RECORD: REV RECORD:
BY DATE DESCRIPTION BY DATE DESCRIPTION
TWIMAN MITIGATION SITE BREACH PLAN
YADKIN COUNTY, NORTH CAROLINA
YADKIN RIVER BASIN: HUC 03040101 1 1 02
JULY 2019
RESOURCE ENVIRONMENTAL SOLUTIONS, LLC
302 JEFFERSON ST, SUITE 110
RALEIGH, NC 27605
200 0 100 200 400
1 INCH = 200 FT.
Sheet List Table
Sheet
Number
Sheet Title
1
COVER
2
EXISTING CONDITIONS
3
TC2 DAM BREACH PLAN
4
TC3 DAM BREACH PLAN
5
EROSION CONTROL PLAN - OVERALL
6
EROSION CONTROL PLAN - DAM BREACHES
7
EROSION CONTROL NOTES
8
DETAILS - 1
9
DETAILS - 2
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community infrastructure consultants
Transportation + Water Resources
Urban Development + Geomatics
720 Corporate Drive
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(v) 919.782.0495
(f) 919.782.9672
www.wkdickson.com
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PROJ. NO.:
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FILE NAME: O:\Projects\Resource Environmental Solutions\2018006200RA - TO#15 Twiman Mitigation Site\CADD\Plan Set\2018006200RA C SHT BREACH.dwg - July 19, 2019 - Noyes Harrigan
DVDMICKSON
community infrastructure consultants
Transportation + Water Resources
Urban Development + Geomatics
720 Corporate Drive
Raleigh, NC 27607
(v) 919.782.0495
(f) 919.782.9672
www.wkdickson.com
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720 Corporate Drive
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(v) 919.782.0495
(f) 919.782.9672
www.wkdickson.com
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©. W.K. DICKSON & CO., INC. ALL RIGHTS RESERVED. REPRODUCTION OR USE OF THE CONTENTS OF THIS DOCUMENT; ADDITIONS OR DELETIONS TO THIS DOCUMENT, IN WHOLE OR IN PART,
FILE NAME: O:\Projects\Resource Environmental Solutions\2018006200RA - TO#15 Twiman Mitigation Site\CADD\Plan Set\2018006200RA C SHT BREACH.dwg - July 19, 2019 - Noyes Harrigan
., INC., IS PROHIBITED. ONLY COPIES FROM THE
CONSTRUCTION SEQUENCE NOTES FOR BREACH:
1. UTILIZE SEPARATE PUMPS OR SIPHONS TO COMPLETELY DRAIN THE POND. DO NOT DRAIN THE POND BY
BREACHING THE DAM. DO NOT ALLOW DEWATERING RATE TO LOWER PONDS MORE THAN 1 FOOT PER DAY.
2. INSTALL ALL EROSION AND SEDIMENT CONTROL MEASURES AS SHOWN ON SHEETS 5-7. DO NOT REMOVE ANY
STRUCTURES UNLESS OTHERWISE DIRECTED BY THE ENGINEER.
3. BEGIN REMOVING DAM MATERIAL FROM THE TOP OF THE DAM. DISPOSE OF ALL MATERIAL OFFSITE AND IN A
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DRAINED. INSTALL RIP RAP FILTER BERM AND DISSIPATER PER DETAIL 1 ON SHEET 9 AS SOON AS PRACTICAL IN
THE PROCESS OF DAM REMOVAL (AS SOON AS THE POND IS DEWATERED IN THE CASE OF TC3).
4. EXCAVATE DAM, REMOVE EXISTING PIPE (ONLY OUTFALL LOCATION IDENTIFIED), INSTALL BREACH CHANNEL,
AND INSTALL CHECK DAMS.
5. INSTALL INSTALL EROSION CONTROL MATTING PER DETAIL 3/SHEET 8 AND PERMANENT SEEDING.
6. REMOVE SEDIMENT FROM CHANNEL WHEN SEDIMENT DEPTH IS 6" OR GREATER.
7. ONCE THE SITE IS STABILIZED, REMOVE EROSION CONTROL MEASURES EXCEPT THE CHECK DAMS AND
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STREAM RESTORATION WORK IS PERFORMED.
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DICKSON
community infrastructure consultants
Transportation + Water Resources
Urban Development + Geomatics
720 Corporate Drive
Raleigh, NC 27607
(v) 919.782.0495
(f) 919.782.9672
www.wkdickson.com
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community infrastructure consultants
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720 Corporate Drive
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COPYRIGHT ©, W.K. DICKSON & CO., INC. ALL RIGHTS RESERVED. REPRODUCTION OR USE OF THE CONTENTS OF THIS DOCUMENT; ADDITIONS OR DELETIONS TO THIS DOCUMENT, IN WHOLE OH IN PAH I , WI I HUU 11NHI I I tN UUNStN I Ur' W.K. U1UKZ5UN & UU., INU., 1s rmurntw I tu. uNLr GUrICA rrtum 1 r1t UNIU lVAL ur i r11J UuGumtN 1 , MAMMA) WI I rt AN UMIL31NAL CAUNA 1 Uht ANL) JtAL JHALL tat UUN51L)1=H1=L) I U tat VALID, I Hut CUPItS.
FILE NAME: O:\Projects\Resource Environmental Solutions\2018006200RA - TO#15 Twiman Mitigation Site\CADD\Plan Set\2018006200RA C SHT BREACH.dwg - July 19, 2019 - Noyes Harrigan
Dvw
DICKSON
community infrastructure consultants
Transportation + Water Resources
Urban Development + Geomatics
720 Corporate Drive
Raleigh, NC 27607
(v) 919.782.0495
(f) 919.782.9672
www.wkdickson.com
NC. LICENSE NO. F-0374
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PROJ. DATE: JULY 2019
Q.C.: MTS
Q.C. DATE: JUNE 2019
DRAWING NUMBER:
6
PROJ. NO.:
20180062.00. RA

EROSION CONTROL NOTES:
1. DISTURBED AREA = 4.0 ACRES
2. ALL AREAS DISTURBED BY THE CONTRACTORS SHALL BE SEEDED PER THE SPECIFICATIONS
SHOWN IN DETAILS ON SHEET 7.
3. MULCH: USE SPECIFIED EROSION CONTROL BLANKET TO COVER THE SIDE SLOPES OF THE
CHANNEL. APPLY 3000 LB/ACRE GRAIN STRAW AND ANCHOR STRAW ON ALL OTHER DISTURBED
AREAS.
4. REVIEW CONSTRUCTION SEQUENCE FOR ADDITIONAL EROSION CONTROL MEASURES.
5. CONSTRUCTION ACCESS AREAS SHOWN ARE TO GUIDE CONTRACTOR DURING CONSTRUCTION.
CONTRACTOR SHALL COORDINATE WITH ENGINEER IF ALTERNATIVE CONSTRUCTION ACCESS
ROUTES WILL IMPROVE EFFICIENCY OF CONSTRUCTION.
6. STORAGE OF MATERIALS OR EQUIPMENT WITHIN THE FLOODPLAIN IS PROHIBITED.
EROSION CONTROL:
1. INSTALL PERMANENT VEGETATIVE COVER AND THE LONG-TERM EROSION PROTECTION
MEASURES OR STRUCTURES AS SOON AS PRACTICAL IN THE CONSTRUCTION PROCESS.
APPROPRIATE EROSION CONTROL MEASURES MUST BE PLACED BETWEEN THE DISTURBED
AREA AND AFFECTED WATERWAY AND MAINTAINED UNTIL PERMANENTLY VEGETATED.
2. THE CONTRACTOR SHALL BE RESPONSIBLE FOR MAINTAINING ALL EROSION CONTROL
MEASURES RELATED TO THE CONSTRUCTION SITE.
3. ATA MINIMUM, EROSION CONTROL MEASURES SHALL BE INSTALLED IN ACCORDANCE WITH
APPLICABLE STATE AND LOCAL REGULATIONS. ADDITIONAL EROSION CONTROL MEASURES MAY
BE REQUIRED BY LOCAL GOVERNING AGENCIES.
4. CONTRACTOR MUST TAKE THE NECESSARY ACTION TO MINIMIZE THE TRACKING OF MUD ONTO
THE PAVED ROADWAY FROM CONSTRUCTION AREAS. DAILY REMOVAL OF MUD/SOIL MAY BE
REQUIRED. THE CONTRACTOR SHALL BE RESPONSIBLE FOR THE IMMEDIATE REMOVAL OF ANY
SOIL TRACKED INTO THE PUBLIC RIGHT-OF-WAY.
5. THE LOCATIONS OF SOME EROSION CONTROL MEASURES MAY HAVE TO BE ALTERED FROM
THOSE SHOWN ON THE PLANS IF DRAINAGE PATTERNS CHANGE DURING CONSTRUCTION.
6. PROVIDE FOR HANDLING THE INCREASED RUNOFF CAUSED BY CHANGED SOIL AND SURFACE
CONDITIONS. USE EFFECTIVE MEANS TO CONSERVE EXISTING ON-SITE SOIL INCLUDING THE USE
OF DIVERSION DITCHES.
7. ALL DISTURBED AREAS SHALL BE SEEDED. USE TEMPORARY PLANT COVER, MULCHING, AND/OR
STRUCTURES TO CONTROL RUNOFF AND PROTECT AREAS SUBJECT TO EROSION DURING
CONSTRUCTION. CHANNEL BANKS SHALL BE SEEDED DAILY UPON COMPLETION OF FINAL
GRADING.
8. ALL SEDIMENT AND EROSION CONTROLS ARE TO BE INSPECTED AT LEAST ONCE EVERY SEVEN
CALENDAR DAYS AND AFTER ANY STORM EVENT OF GREATER THAN 0.5 INCHES OF
PRECIPITATION DURING ANY 24-HOUR PERIOD. MAINTENANCE OF SEDIMENT TRAPPING
STRUCTURES SHALL BE PERFORMED AS NECESSARY PER THESE INSPECTIONS. SILT FENCING
AND DIVERSION DITCHES SHALL BE INSTALLED AS SHOWN ON EROSION CONTROL SHEETS.
9. STABILIZATION MEASURES SHALL BE INITIATED AT THE END OF EACH DAY IN PORTIONS OF THE
SITE WHERE CONSTRUCTION ACTIVITIES HAVE TEMPORARILY OR PERMANENTLY CEASED
EXCEPT WHERE CONSTRUCTION ACTIVITIES SHALL BE REINITIATED WITHIN 7 CALENDAR DAYS.
10. ALL EROSION CONTROL DEVICES SHALL BE PROPERLY MAINTAINED DURING ALL PHASES OF
CONSTRUCTION UNTIL THE COMPLETION OF ALL CONSTRUCTION ACTIVITIES AND ALL
DISTURBED AREAS HAVE BEEN STABILIZED. ADDITIONAL CONTROL DEVICES MAY BE REQUIRED
DURING CONSTRUCTION IN ORDER TO CONTROL EROSION AND/OR OFFSITE SEDIMENTATION.
CONTRACTOR SHALL REMOVE ALL TEMPORARY CONTROL DEVICES ONCE CONSTRUCTION IS
COMPLETE AND THE SITE IS STABILIZED. A MAXIMUM OF 51 LINEAR FEET OF STREAM MAY BE
DISTURBED AT ANY ONE TIME.
11. SILT FENCING TO BE INSTALLED AROUND ANY INDICATED SPOILS AREAS TO PREVENT LOSS OF
SEDIMENT.
12. ASPHALT TACKIFIER SHALL NOT BE USED.
13. ALL NECESSARY MEASURES MUST BE TAKEN TO PREVENT OIL, TAR, TRASH, AND OTHER
POLLUTANTS FROM ENTERING THE ADJACENT OFFSITE AREAS,
14. CONSTRUCTION ACTIVITIES MUST AVOID TO THE GREATEST EXTENT PRACTICABLE
ENCROACHMENT INTO ANY WETLAND/STREAM AREAS NOT DESIGNATED AS IMPACT AREAS.
15. ACTIVITIES MUST AVOID DISTURBANCE OF WOODY RIPARIAN VEGETATION WITHIN THE PROJECT
AREA TO THE GREATEST EXTENT PRACTICABLE. REMOVAL OF VEGETATION MUST BE LIMITED TO
ONLY THAT NECESSARY FOR CONSTRUCTION OF THE PROJECT ELEMENTS.
16. NO ON-SITE BURIAL OF VEGETATION OR CONSTRUCTION DEBRIS WILL BE PERMITTED.
17. ANY GRADING BEYOND THE CONSTRUCTION LIMITS SHOWN ON THE PLAN IS A VIOLATION OF THE
NORTH CAROLINA EROSION CONTROL ORDINANCE AND IS SUBJECT TO A FINE.
18. PLEASE REFERENCE PLAN SHEET DETAILS AND NCDEQ STANDARDS FOR CONSTRUCTION OF
EROSION CONTROL MEASURES.
19. THE CONTRACTOR SHALL INSTALL A RAIN GAUGE ON THE SITE AND COMPLETE
SELF -INSPECTIONS AND MONITORING AS OUTLINED IN THE SELF -INSPECTION AND
SELF-MONITORING COMBINED FORM LOCATED AT:
HTTPS://DEQ.NC.GOV/ABOUT/DIVISIONS/ENERGY-MINERAL-LAND-RESOURCES/
EROSION-SEDIMENT-CONTROL/FORMS
A COPY OF THE APPROVED E&SC PLAN WITH PLACARD AND APPROVAL LETER, A COPY OF THE
NPDES PERMIT, AND COPIES OF THE PAST 30 DAYS SELF -INSPECTION REPORTS ARE TO BE KEPT
ON SITE UNTIL PROJECT CLOSURE.
20. DURING CONSTRUCTION, CONTACT DAVID GODLEY, RESOURCE ENVIRONMENTAL SOLUTIONS,
LLC AT [phone].
VEGETATIVE PLAN:
1. EROSION CONTROL MEASURES SHALL BE PROPERLY MAINTAINED UNTIL PERMANENT
VEGETATION IS ESTABLISHED.
2. DISTURBED AREAS NOT AT FINAL GRADE AND LEFT IDLE FOR TWO OR MORE WEEKS, SHALL BE
TEMPORARILY VEGETATED. UPON COMPLETION OF FINAL GRADING, PERMANENT VEGETATION
SHALL BE ESTABLISHED WITHIN 7 CALENDAR DAYS. SEEDING SHALL BE IN ACCORDANCE WITH
DETAILS ON SHEET 7.
3. ALL OTHER DISTURBED AREAS WILL BE STABILIZED BY PERMANENTLY VEGETATING WITH SEED
AND MULCH AS RECOMMENDED BY THE PERMANENT SEEDING SPECIFICATIONS DUE TO THE
RESTRAINTS ON THE LENGTH OF IMPROVEMENTS AND/OR DURATION OF EXPOSED DISTURBED
AREAS.
4. ONCE PERMANENT VEGETATION AND EROSION CONTROL MEASURES ARE ESTABLISHED, THE
CONTRACTOR SHALL SCHEDULE A FINAL INSPECTION IN ORDER TO OBTAIN A CERTIFICATE OF
COMPLETION. AFTER APPROVAL, ALL REMAINING TEMPORARY EROSION CONTROL MEASURES
MAY BE REMOVED.
GENERAL MAINTENANCE PLAN:
1. THE CONTRACTOR IS RESPONSIBLE FOR ALL EROSION CONTROL MEASURES AS SPECIFIED BY
NOTES ON DETAILS AND ON SHEETS 5 TO 7.
2. ALL TEMPORARY EROSION CONTROL AND SEDIMENT CONTROL PRACTICES WILL BE INSTALLED
AS NOTED ON THE EROSION CONTROL DETAILS.
3. ALL SEDIMENT AND EROSION CONTROL PRACTICES SHALL BE CHECKED FOR STABILITY AND
OPERATION ON A WEEKLY BASIS AND FOLLOWING EVERY RUNOFF PRODUCING RAINFALL EVENT.
ANY REPAIRS SHALL BE MADE IMMEDIATELY TO MAINTAIN THE FUNCTION OF THE PRACTICE.
4. TRAPPED SEDIMENT SHALL BE PROPERLY REMOVED FROM THE UPSLOPE SIDE OF SEDIMENT
FENCE WHEN SEDIMENT BUILDS UP TO A DEPTH OF 0.5 FEET. SEDIMENT FENCE SHALL BE
REPAIRED AS NECESSARY TO MAINTAIN ITS FUNCTION.
5. REFER TO DETAILS SHEETS FOR ADDITIONAL MAINTENANCE NOTES ON EROSION CONTROL
STRUCTURES.
EROSION CONTROL GENERAL CONSTRUCTION SEQUENCE:
1. CALL NC DEQ LQS TO SCHEDULE PRE -CONSTRUCTION MEETING AT LEAST 48 HOURS PRIOR TO
PROJECT ACTIVATION. CONDUCT PRE -CONSTRUCTION MEETING INCLUDING OWNER/ENGINEER,
ASSOCIATED CONTRACTORS AND OTHER AFFECTED PARTIES.
2. STABILIZED GRAVEL ENTRANCE/EXIT AT THE SITE SHALL BE INSTALLED AS SHOWN ON THE
PLANS AND DETAILS. AFTER ESTABLISHMENT OF THE CONSTRUCTION ENTRANCE/EXIT, ALL
PERIMETER EROSION CONTROL MEASURES SHALL BE INSTALLED PRIOR TO CLEARING AND
GRUBBING.
3. ALSO PRIOR TO CLEARING AND GRUBBING/CONSTRUCTION, THE CONTRACTOR SHALL REQUEST
AN ON-SITE INSPECTION. UPON RECEIPT OF CERTIFICATE OF COMPLIANCE, CLEARING AND
GRUBBING/CONSTRUCTION MAY BEGIN.
4. PERFORM GRADING OPERATIONS IN A MANNER AND SEQUENCE SO AS TO REDUCE
UNNECESSARY DISTURBANCE OF SURFACE COVER.
5. EROSION CONTROL MEASURES MAY BE PHASED -IN TO THOSE AREAS OF THE PROJECT
CURRENTLY BEING WORKED ON. THE CONTRACTOR MAY MODIFY OR RELOCATE EROSION
CONTROL MEASURES TO MAKE ADJUSTMENTS FOR UNFORESEEN FIELD CONDITIONS SO LONG
AS PROPER CONSTRUCTION IS MAINTAINED TO ENSURE THE INTEGRITY AND USEFULNESS OF
THE PROPOSED MEASURES. ALL RELOCATION SHALL HAVE THE APPROVAL OF THE ENGINEER.
ALL DISTURBED AREAS ALONG CHANNEL BANKS SHALL BE STABILIZED WITH TEMPORARY SEED
AND MULCH AT THE END OF EACH DAY.
6. IF IT IS DETERMINED DURING THE COURSE OF CONSTRUCTION THAT SIGNIFICANT SEDIMENT IS
LEAVING THE SITE (DESPITE THE PROPER IMPLEMENTATION AND MAINTENANCE OF EROSION
CONTROL MEASURES), THE PERSON RESPONSIBLE FOR THE LAND DISTURBING ACTIVITY IS
OBLIGATED TO TAKE ADDITIONAL PROTECTIVE ACTION.
7. AT LOCATIONS IN WHICH THE STREAM CHANNEL IS BEING MODIFIED, TEMPORARY COFFER DAMS
AND BYPASS PUMPING WILL BE USED TO DE -WATER THE WORK AREA.
8. THE CONTRACTOR SHALL NOT DISTURB MORE AREA THAN CAN BE STABILIZED IN ONE WORKING
DAY. RESTORATION MEASURES, SEEDING AND VEGETATION WILL BE INSTALLED ALONG THE
CHANNEL LENGTH AS WORK PROGRESSES.
9. ALL EXCAVATED MATERIAL MUST BE PLACED AT A MINIMUM OF 5 FT FROM CHANNEL. SILT
FENCES MUST BE INSTALLED AROUND ALL STOCKPILE AREAS.
10. TEMPORARY AND PERMANENT STABILIZATION OF ALL DISTURBED GRASSED AREAS WILL BE IN
ACCORDANCE WITH THE SEEDING AND MULCHING SPECIFICATION AS SHOWN ON THE EROSION
CONTROL PLANS AND IN THE PROJECT MANUAL.
11. PROPOSED CHANNEL EXCAVATION AND GRADING SHALL BE PERFORMED USING EQUIPMENT
FROM OUTSIDE OF THE EXISTING CHANNEL WHERE POSSIBLE. TEMPORARY CROSSINGS WILL BE
USED AT LOCATIONS SPECIFIED ON THE PLANS. CROSSINGS MAY BE ADDED OR RELOCATED
UPON APPROVAL FROM THE ENGINEER.
12. CONTRACTOR SHALL NOT COMPACT SOIL AROUND ROOTS OF TREES TO REMAIN AND SHALL
NOT DAMAGE SUCH TREES IN ANY WAY.
13. IT SHALL BE UNDERSTOOD THAT FAILURE TO SPECIFICALLY MENTION ANY WORK THAT WOULD
NATURALLY BE REQUIRED TO COMPLETE THIS PROJECT SHALL NOT RELIEVE THE CONTRACTOR
OF HIS RESPONSIBILITY TO PERFORM SUCH WORK.
14. REMOVE TEMPORARY EROSION CONTROL MEASURES AFTER GROUND COVER IS ESTABLISHED
AND APPROVAL IS GRANTED FROM THE CITY INSPECTORS AND THE ENGINEER.
GROUND COVER SCHEDULE
SITE AREA DESCRIPTION
STABILIZATION TIME
STABILIZATION TIME FRAME EXCEPTIONS
FALL: AUGUST 25 - OCTOBER 15
FRAME
PERIMETER DIKES, SWALES,
7 DAYS
NONE
DITCHES AND SLOPES
APPLY 4,000 LB/ACRE STRAW. ANCHOR STRAW BY NETTING OR A MULCH ANCHORING TOOL. A DISK WITH BLADES SET NEARLY STRAIGHT CAN
DATES
HIGH QUALITY WATER (HQW) ZONES
7 DAYS
NONE
PAYMENT FOR OVER -SEEDING AND SHALL BE DONE IN CONJUNCTION WITH CORE AERATION.
MAINTENANCE:
IF SLOPES ARE 10' OR LESS IN LENGTH AND ARE
SLOPES STEEPER THAN 3:1
7 DAYS
NOT STEEPER THAN 2:1,14 DAYS ARE ALLOWED
AMENDMENTS
TO 7.0.
7 DAYS FOR SLOPES GREATER THAN 50 FEET IN
SLOPES 3:1 OR FLATTER
14 DAYS
LENGTH
ALL OTHER AREAS WITH SLOPES
FERTILIZER
NONE (EXCEPT FOR PERIMETERS AND HWQ
FLATTER THAN 4:1
14 DAYS
ZONES)
FOR PERMANENT PLANTING AND SEEDING LOCATIONS, REFER TO EROSION CONTROL PLAN ON SHEET 6
STABILIZATION TIME FRAME REQUIREMENTS
MIXTURE
APPLY TURF -TYPE FESCUE AT THE MANUFACTURERS RECOMMENDED RATE OR MINIMUM OF SIX (6) LBS. PER 1000 SQUARE FT.
R LATE WINTER AND
SOIL AMENDMENTS:
FALL: AUGUST 25 - OCTOBER 15
FOLLOW RECOMMENDATIONS OF SOIL TESTS OR APPLY 2,000 LB/ACRE GROUND AGRICULTURAL LIMESTONE AND 750 LB/ACRE 10-10-10
SPRING: FEBRUARY 15 - APRIL 15
EDING MIXTURE:
SEEDING
TURF -TYPE FESCUE MAY BE SEEDED YEAR-ROUND; HOWEVER, ANY VARIANCE IN THE ABOVE SEEDING SCHEDULE WILL REQUIRE AT LEAST ONE OVER -SEEDING APPLICATION
APPLY 4,000 LB/ACRE STRAW. ANCHOR STRAW BY NETTING OR A MULCH ANCHORING TOOL. A DISK WITH BLADES SET NEARLY STRAIGHT CAN
DATES
FROM AUGUST 25TH TO OCTOBER 31 TO ENSURE 90% COVERAGE. THIS OVER -SEEDING IS CONSIDERED INCIDENTAL AND THERE SHALL BE NO SEPARATE MEASUREMENT OR
(OMIT ANNUAL LESPEDEZA WHEN
PAYMENT FOR OVER -SEEDING AND SHALL BE DONE IN CONJUNCTION WITH CORE AERATION.
MAINTENANCE:
IS NOT TO EXTEND BEYOND JUNE)
SOIL TESTING RESULTS SHALL BE PROVIDED BY CONTRACTOR PRIOR TO INSTALLATION OF CROP. LIME, SOIL ADDITIVES AND STARTER FERTILIZER SHALL BE
SEEDING
BROADCASTED AND WORKED INTO THE SOIL UNIFORMLY DURING TILLAGE AT ALL AREAS AT THE RATE DICTATED BY THE SOIL TEST THAT WILL PROVIDE A PH LEVEL OF 6.5
AMENDMENTS
TO 7.0.
COPYRIGHT ©, W.K. DICKSON & CO., INC. ALL RIGHTS RESERVED. REPRODUCTION OR USE OF THE CONTENTS OF THIS DOCUMENT; ADDITIONS OR DELETIONS TO THIS DOCUMENT, IN WHOLE OR IN PART, WITHOUT WRITTEN CONSENT OF W.K. DICKSON & CO., INC., IS PROHIBITED. ONLY COPIES FROM THE ORIGINAL OF THIS DOCUMENT, MARKED WITH AN ORIGINAL SIGNATURE AND SEAL SHALL BE CONSIDERED TO BE VALID, TRUE COPIES.
FILE NAME: O:\Projects\Resource Environmental Solutions\2018006200RA - TO#15 Twiman Mitigation Site\CADD\Plan Set\20180D6200RA C SHT BREACH.dwg - July 19, 2019 - Noyes Harrigan
TEMPORARY SEEDING SCHEDULE
R LATE WINTER AND
SOIL AMENDMENTS:
RLY SPRING:
f
FOLLOW RECOMMENDATIONS OF SOIL TESTS OR APPLY 2,000 LB/ACRE GROUND AGRICULTURAL LIMESTONE AND 750 LB/ACRE 10-10-10
FERTILIZER
EDING MIXTURE:
MULCH:
RYE (GRAIN) - 120 LB/ACRE
APPLY 4,000 LB/ACRE STRAW. ANCHOR STRAW BY NETTING OR A MULCH ANCHORING TOOL. A DISK WITH BLADES SET NEARLY STRAIGHT CAN
ANNUAL LESPEDEZA (KOBE) - 50 LB/ACRE
BE USED AS A MULCH ANCHORING TOOL
(OMIT ANNUAL LESPEDEZA WHEN
DURATION OF TEMPORARY COVER
MAINTENANCE:
IS NOT TO EXTEND BEYOND JUNE)
REFERTILIZE IF GROWTH IS NOT FULLY ADEQUATE. RESEED, FERTILIZE AND MULCH IMMEDIATELY FOLLOWING EROSION OR OTHER DAMAGE
SEEDING DATES:
JAN. 1 - MAY 1
(f) 919.782.9672
FOR SUMMER:
SOIL AMENDMENTS:
www.wkdickson.com
FOLLOW RECOMMENDATIONS OF SOIL TESTS OR APPLY 2,000 LB/ACRE GROUND AGRICULTURAL LIMESTONE AND 750 LB/ACRE 10-10-10
SEEDING MIXTURE:
FERTILIZER
GERMAN MILLET - 40 LB/ACRE
(A SMALL -STEMMED SUDANGRASS MAY BE
MULCH:
SUBSTITUTED AT A RATE OF 50 LB/ACRE)
APPLY 4,000 LB/ACRE STRAW. ANCHOR STRAW BY NETTING OR A MULCH ANCHORING TOOL. A DISK WITH BLADES SET NEARLY STRAIGHT CAN
BE USED AS A MULCH ANCHORING TOOL
SEEDING DATES:
MAY 1 - AUG. 15
MAINTENANCE:
REFERTILIZE IF GROWTH IS NOT FULLY ADEQUATE. RESEED, FERTILIZE AND MULCH IMMEDIATELY FOLLOWING EROSION OR OTHER DAMAGE
FOR FALL:
SOIL AMENDMENTS:
FOLLOW RECOMMENDATIONS OF SOIL TESTS OR APPLY 2,000 LB/ACRE GROUND AGRICULTURAL LIMESTONE AND 1,000 LB/ACRE 10-10-10
SEEDING MIXTURE:
FERTILIZER
RYE (GRAIN) - 120 LB/ACRE
MULCH:
SEEDING DATES:
APPLY 4,000 LB/ACRE STRAW. ANCHOR STRAW BY NETTING OR A MULCH ANCHORING TOOL. A DISK WITH BLADES SET NEARLY STRAIGHT CAN
AUG. 15 - DEC 30
BE USED AS A MULCH ANCHORING TOOL
MAINTENANCE:
REPAIR AND REFERTILIZE DAMAGED AREAS IMMEDIATELY. TOPDRESS WITH 50 LB/ACRE OF NITROGEN IN MARCH. IF IT IS NECESSARY TO EXTEND
2" - FULL
HALF
TEMPORARY COVER BEYOND JUNE 15, OVERSEED WITH 50 LB/ACRE KOBE LESPEDEZA IN LATE FEBRUARY OR EARLY MARCH.
NOTE: SEE DETAIL 1/SHEET 7 FOR STABILIZATION TIME FRAME REQUIREMENTS.
SEEDING SCHEDULE
COPYRIGHT ©, W.K. DICKSON & CO., INC. ALL RIGHTS RESERVED. REPRODUCTION OR USE OF THE CONTENTS OF THIS DOCUMENT; ADDITIONS OR DELETIONS TO THIS DOCUMENT, IN WHOLE OR IN PART, WITHOUT WRITTEN CONSENT OF W.K. DICKSON & CO., INC., IS PROHIBITED. ONLY COPIES FROM THE ORIGINAL OF THIS DOCUMENT, MARKED WITH AN ORIGINAL SIGNATURE AND SEAL SHALL BE CONSIDERED TO BE VALID, TRUE COPIES.
FILE NAME: O:\Projects\Resource Environmental Solutions\2018006200RA - TO#15 Twiman Mitigation Site\CADD\Plan Set\20180D6200RA C SHT BREACH.dwg - July 19, 2019 - Noyes Harrigan
DICKSON
community infrastructure consultants
Transportation + Water Resources
Urban Development + Geomatics
720 Corporate Drive
Raleigh, NC 27607
(v) 919.782.0495
(f) 919.782.9672
www.wkdickson.com
NC. LICENSE NO. F-0374
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PROD. DATE:
Q.C.:
SAS
Q.C. DATE:
06-56-5645
DRAWING NUMBER:
7
PROJ. NO:
20180062.00. RA

WHEN AND WHERE TO USE IT
SILT FENCE IS APPLICABLE IN AREAS: 1.25 LB./LINEAR FT. STEEL POSTS
WHERE THE MAXIMUM SHEET OR OVERLAND FLOW PATH LENGTH TO THE FENCE IS 100 -FEET.
WHERE THE MAXIMUM SLOPE STEEPNESS (NORMAL [PERPENDICULAR] TO FENCE LINE) IS 2H:1 V. EXTRA STRENGTH
THAT DO NOT RECEIVE CONCENTRATED FLOWS GREATER THAN 0.5 CFS. FILTER FABRIC
DO NOT PLACE SILT FENCE ACROSS CHANNELS OR USE IT AS A VELOCITY CONTROL BMP.
CONSTRUCTION SPECIFICATIONS:
1. USE A SYNTHETIC FILTER FABRIC OF AT LEAST 95% BY WEIGHT OF POLYOLEFINS OR POLYESTER, WHICH IS
CERTIFIED BY THE MANUFACTURER OR SUPPLIER AS CONFORMING TO THE REQUIREMENTS IN ASTM D 6461.
SYNTHETIC FILTER FABRIC SHOULD CONTAIN ULTRAVIOLET RAY INHIBITORS AND STABILIZERS TO PROVIDE A
MINIMUM OF 6 MONTHS OF EXPECTED USABLE CONSTRUCTION LIFE AT A TEMPERATURE RANGE OF O' TO
120 F.
2. ENSURE THAT POSTS FOR SEDIMENT FENCES ARE 1.33 LB/LINEAR FT STEEL WITH A MINIMUM LENGTH OF 5
FEET. MAKE SURE THAT STEEL POSTS HAVE PROJECTIONS TO FACILITATE FASTENING THE FABRIC:
CONSTRUCTION:
1. CONSTRUCT THE SEDIMENT BARRIER OF EXTRA STRENGTH SYNTHETIC FILTER FABRICS,
2. ENSURE THAT THE HEIGHT OF THE SEDIMENT FENCE DOES NOT EXCEED 24 INCHES ABOVE THE GROUND
SURFACE. (HIGHER FENCES MAY IMPOUND VOLUMES OF WATER SUFFICIENT TO CAUSE FAILURE OF THE
STRUCTURE.)
3. CONSTRUCT THE FILTER FABRIC FROM A CONTINUOUS ROLL CUT TO THE LENGTH OF THE BARRIER TO
AVOID JOINTS. WHEN JOINTS ARE NECESSARY, SECURELY FASTEN THE FILTER CLOTH ONLY AT A SUPPORT
POST WITH 4 FEET MINIMUM OVERLAP TO THE NEXT POST.
4. EXTRA STRENGTH FILTER FABRIC WITH 6 FEET POST SPACING DOES NOT REQUIRE WIRE MESH SUPPORT
FENCE. SECURELY FASTEN THE FILTER FABRIC DIRECTLY TO POSTS. WIRE OR PLASTIC ZIP TIES SHOULD
HAVE MINIMUM 50 POUND TENSILE STRENGTH.
5. EXCAVATE A TRENCH APPROXIMATELY 4 INCHES WIDE AND 8 INCHES DEEP ALONG THE PROPOSED LINE OF
BACKFILL TRENCH WITH
COMPACTED EARTH
6•,�
T
USE EITHER FLAT -BOTTOM
OR V -BOTTOM TRENCH
SHOWN BELOW
SILT FENCE INSTALLATION
HEAVY DUTY PLASTIC TIE
FOR STEEL POSTS
BURY FABRIC
REPLACE IT PROMPTLY.
FILTER
3. REMOVE SEDIMENT DEPOSITS AS NECESSARY TO PROVIDE ADEQUATE STORAGE VOLUME FOR THE NEXT FABRIC 4„ FILTER FABRIC
RAIN AND TO REDUCE PRESSURE ON THE FENCE. TAKE CARE TO AVOID UNDERMINING THE FENCE DURING
CLEANOUT.
FLAT -BOTTOM TRENCH DETAIL V -SHAPED TRENCH DETAIL
4. REMOVE ALL FENCING MATERIALS AND UNSTABLE SEDIMENT DEPOSITS AND BRING THE AREA TO GRADE
AND STABILIZE IT AFTER THE CONTRIBUTING DRAINAGE AREA HAS BEEN PROPERLY STABILIZED.
TEMPORARY SILT FENCE
8 NOT TO SCALE
INSTALLATION NOTES:
SITE PREPARATION
1. GRADE AND COMPACT AREA.
2. REMOVE ALL ROCKS, CLODS, VEGETATION, AND OBSTRUCTIONS SO THAT MATTING WILL
HAVE DIRECT CONTACT WITH THE SOIL.
3. PREPARE SEEDBED BY LOOSENING 3 TO 4 INCHES OF TOPSOIL ABOVE FINAL GRADE.
4. TEST SOILS FOR ANY NUTRIENT DEFICIENCIES AND SUBMIT SOIL TEST RESULTS TO THE
ENGINEER. APPLY ANY TREATMENT SUCH AS LIME OR FERTILIZERS TO THE SOIL IF
NEEDED.
SEEDING
1. SEE SHEET 7 FOR SEEDING REQUIREMENTS.
2. APPLY SEED TO SOIL BEFORE PLACING MATTING.
INSTALLATION - STREAM BANK
1. SEE GRADING NOTES ON PLAN AND PROFILE SHEETS AND DETAIL SHEETS FOR
INFORMATION REGARDING WHAT AREAS ARE TO RECEIVE COIR MATTING.
2. OVERLAP ADJACENT MATS 3" (IN DIRECTION PARALLEL TO FLOW) AND ANCHOR EVERY 12.-
ACROSS
2"ACROSS THE OVERLAP. THE UPSTREAM MAT SHOULD BE PLACED OVER THE
DOWNSTREAM MAT.
3. EDGES SHOULD BE SHINGLED AWAY FROM THE FLOW OF WATER.
4. LAY MAT LOOSE TO ALLOW CONTACT WITH SOIL. DO NOT STRETCH TIGHT.
5. ANCHOR MAT USING BIODEGRADABLE STAKES OR PINS.
6. CUT 8" x 8" TRENCH ALONG TOP OF BANK FOR MAT TERMINATION AS SHOWN IN FIGURES 1
& 2. EXTEND MAT 2 TO 3 FEET PAST TOP OF BANK.
7. PLACE ADJACENT ROLLS IN THE ANCHOR TRENCH WITH A MINIMUM OF 4" OVERLAP.
SECURE WITH BIODEGRADABLE STAKES OR PINES, BACKFILL ANCHOR TRENCH, AND
COMPACT SOIL.
8. STAPLE AT 12" INTERVALS ALONG OVERLAP.
9. STREAM BANK MATTING TO BE INSTALLED FROM TOE OF BANK TO A MINIMUM OF 2.0' PAST
TOP OF BANK. SEE FIGURE 3 FOR TERMINATION AT TOP OF BANK.
10. IF MORE THAN ROLL IS REQUIRED TO COVER THE CHANNEL FROM THE TOP OF BANK
DOWN TO THE TOE, THEN OVERLAP MATTING BY A MINIMUM OF V.
EROSION CONTROL MATTING MUST MEET OR EXCEED THE
FOLLOWING REQUIREMENTS:
• 100 % COCONUT FIBER (COIR) TWINE WOVEN INTO A
HIGH STRENGTH MATRIX.
• THICKNESS - 0.351N. MINIMUM.
• SHEAR STRESS - 5 LBS/SQFT
•FLOW VELOCITY- OBSERVED 16 FT/SEC
s WEIGHT - 29 OZ/SY
• OPEN AREA - 38%
• SLOPES - UP TO A MAXIMUM OF 1:1
INC. ALL
IUM 9" EROSION
ROL STRAW WATTLE
SIR WATTLE/LOG
INSTALL WATTLE IN 3" TO
5" TRENCH
2.0'
MIN.
NOTE:
EROSION CONTROL WATTLES OR COIR LOGSMATTLES MAY BE USED IN PLACE
OF SILT FENCE.
EROSION CONTROL WATTLE
NOT TO SCALE
"-Y-IN MATTING PE"
FIG. 1 OR FIG. 2
TRENCH APPROX.
SOIL PILE 8" WIDE X 8" DEEP
FROM TRENCH
FLOW
1 ROW OF STAPLES
OR STAKES, MIN. OF
24" O.0
STEP 1
1 ROW OF STAPLES
FLOWOR STAKES, MIN. OF
18" O.0
SOIL FILLED
FROM SOIL PILE,
COMPACT WITH FOOT
STEP 2
FIGURE 1
COIR MATTING
NOT TO SCALE
ADDITIONS
KEY -IN AND/OR
STAKE MATTING
JUST ABOVE
CHANNEL TOE
TRENCH APPROX. SOIL PILE
8" WIDE x 8" DEEP FROM TRENCH
FLOW
FILE NAME: O:\Projects\Resource Environmental Solutions�2018006200RA - TO#15 Twiman Mitigation Site�CADD�PIan Set\20i8006200RA C SHT BREACH.dwg -July 19, 2019 -Noyes Harrigan
STEP 1
STEEL POST
WIRE FENCING
(IF APPLICABLE)
WOVEN FILTER FABRIC --I-,-
4' MAX.
WASHED STONE
(NCDOT #5 OR #57)\
HARDWARE CL
AND COVERED
POSTS
STEEL POST
HARDWARE CLOTH
WASHED STONE (NCDOT #5 OR #57)
1
FLOW
ANCHOR SKIRT;
GENERAL NOTES. MAINTENANCE NOTES: EXCAVATE TRENCH AND COMPACT BACKFILL
1. SEDIMENT FILTER OUTLET AND HARDWARE CLOTH SHALL BE 16 INCHES HIGH BUT NO 1. FILTER OUTLETS SHALL BE INSPECTED BY THE FINANCIALLY RESPONSIBLE PARTY OR
TALLER THAN 18 INCHES. HIS AGENT IMMEDIATELY AFTER EACH RAINFALL AND AT LEAST DAILY DURING
PROLONGED RAINFALL. ANY REPAIRS NEEDED SHALL BE MADE IMMEDIATELY.
2. HARDWARE CLOTH SHALL BE ANCHORED TO THE STEEL POSTS SECURELY USING 2. THE STONE SHALL BE REPLACED PROMPTLY AFTER ANY EVENT THAT HAS CLOGGED OR
APPROPRIATE ANCHORS. HARDWARE CLOTH SHALL BE KEYED IN A MINIMUM OF 12 INCHES
IN LENGTH AND BACKFILLED PROPERLY AS SHOWN IN ABOVE DETAIL. HARDWARE CLOTH TO REMOVED IT.
BE SAME AS STD. #30.09 (19 GAUGE, 114" SPACING). 3. SEDIMENT DEPOSITS SHOULD BE REMOVED WHEN DEPOSITS REACH HALF THE HEIGHT
3. POSTS SHALL BE NO MORE THAN 4 FEET APART. OF THE BARRIER. ANY SEDIMENT DEPOSITS REMAINING IN PLACE AFTER THE SILT
FENCE OUTLET IS REMOVED SHALL BE DRESSED TO CONFORM TO THE EXISTING
4. SITE OUTLETS AT ANY POINT SMALL CONCENTRATED FLOWS ARE ANTICIPATED AND AT THE GRADE, PREPARED AND SEEDED.
DIRECTION OF THE INSPECTOR.
SILT FENCE OUTLET
8 NOT TO SCALE
PURPOSE:
STABILIZED CONSTRUCTION ENTRANCES SHOULD BE USED AT ALL POINTS WHERE TRAFFIC WILL BE
LEAVING A CONSTRUCTION SITE AND MOVING DIRECTLY ONTO A PUBLIC ROAD.
CONSTRUCTION SPECIFICATIONS:
1. CLEAR THE ENTRANCE AND EXIT AREA OF ALL VEGETATION, ROOTS, AND OTHER OBJECTIONABLE
MATERIAL AND PROPERLY GRADE IT.
2. PLACE THE GRAVEL TO THE SPECIFIC GRADE AND DIMENSIONS SHOWN ON THE DETAIL, AND
SMOOTH IT.
3. PROVIDE DRAINAGE TO CARRY WATER TO A SEDIMENT TRAP OR OTHER SUITABLE OUTLET.
4. USE GEOTEXTILE FABRICS BECAUSE THEY IMPROVE STABILITY OF THE FOUNDATION IN LOCATIONS
SUBJECT TO SEEPAGE OR HIGH WATER TABLE.
MAINTENANCE:
MAINTAIN THE GRAVEL PAD IN A CONDITION TO PREVENT MUD OR SEDIMENT FROM LEAVING THE
CONSTRUCTION SITE. THIS MAY REQUIRE PERIODIC TOP DRESSING WITH 2 -INCH STONE. AFTER EACH
RAINFALL, INSPECT ANY STRUCTURE USED TO TRAP SEDIMENT AND CLEAN IT OUT AS NECESSARY.
IMMEDIATELY REMOVE ALL OBJECTIONABLE MATERIALS SPILLED, WASHED, OR TRACKED ONTO PUBLIC
ROADWAYS, OR AIRFIELD PAVEMENTS.
TEMPORARY GRAVEL CONSTRUCTION ENTRANCE
TOP OF BANK TOE OF BANK
RIP RAP APPROACH
- ` (5' MIN) TIMBER MAT CROSSING TIMBER MAT APPROACH
1 ROW OF STAPLES
OR STAKES, MIN. OF
24" O.0
1 ROW OF STAPLES
OR STAKES, MIN. OF
12" O.0
FLOW
SOIL FILLED
FROM SOIL PILE,
COMPACT WITH FOOT
STEP 2
FIGURE 2
WITHOUT WRITTEN
CLASS B RIP f
POSTS AND UPSLOPE FROM THE BARRIER.
FILTER FABRIC
FILTER FABRIC
TIMBER MAT INSTALLED
rPj
6.
7.
PLACE 12 INCHES OF THE FABRIC ALONG THE BOTTOM AND SIDE OF THE TRENCH.
BACKFILL THE TRENCH WITH SOIL PLACED OVER THE FILTER FABRIC AND COMPACT. THOROUGH
COMPACTED
-
COMPACTED
-- -
- ----
-----
COMPACTION OF THE BACKFILL IS CRITICAL TO SILT FENCE PERFORMANCE.
EARTHEARTH
(17 919.782.9672
www.wkdickson.com
8.
DO NOT ATTACH FILTER FABRIC TO EXISTING TREES.
RUNOFF
18 TO 24
�
RUNOFF
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1$ TO 24
MAINTENANCE:
SEAL
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�
FULL SCALE': 1 "=30
8" j i
0 30 60
i
$ "
°��
2" - FULL SCALE
1" = HALF SCALE
1.
INSPECT SEDIMENT FENCES AT LEAST ONCE A WEEK AND AFTER EACH RAINFALL. MAKE ANY REQUIRED
--
"24°
MIN-
-
24" MIN
REPAIRS IMMEDIATELY.
(......
........... '
-
2
SHOULD THE FABRIC OF A SEDIMENT FENCE COLLAPSE TEAR DECOMPOSE OR BECOME INEFFECTIVE
i
O
-
REPLACE IT PROMPTLY.
FILTER
3. REMOVE SEDIMENT DEPOSITS AS NECESSARY TO PROVIDE ADEQUATE STORAGE VOLUME FOR THE NEXT FABRIC 4„ FILTER FABRIC
RAIN AND TO REDUCE PRESSURE ON THE FENCE. TAKE CARE TO AVOID UNDERMINING THE FENCE DURING
CLEANOUT.
FLAT -BOTTOM TRENCH DETAIL V -SHAPED TRENCH DETAIL
4. REMOVE ALL FENCING MATERIALS AND UNSTABLE SEDIMENT DEPOSITS AND BRING THE AREA TO GRADE
AND STABILIZE IT AFTER THE CONTRIBUTING DRAINAGE AREA HAS BEEN PROPERLY STABILIZED.
TEMPORARY SILT FENCE
8 NOT TO SCALE
INSTALLATION NOTES:
SITE PREPARATION
1. GRADE AND COMPACT AREA.
2. REMOVE ALL ROCKS, CLODS, VEGETATION, AND OBSTRUCTIONS SO THAT MATTING WILL
HAVE DIRECT CONTACT WITH THE SOIL.
3. PREPARE SEEDBED BY LOOSENING 3 TO 4 INCHES OF TOPSOIL ABOVE FINAL GRADE.
4. TEST SOILS FOR ANY NUTRIENT DEFICIENCIES AND SUBMIT SOIL TEST RESULTS TO THE
ENGINEER. APPLY ANY TREATMENT SUCH AS LIME OR FERTILIZERS TO THE SOIL IF
NEEDED.
SEEDING
1. SEE SHEET 7 FOR SEEDING REQUIREMENTS.
2. APPLY SEED TO SOIL BEFORE PLACING MATTING.
INSTALLATION - STREAM BANK
1. SEE GRADING NOTES ON PLAN AND PROFILE SHEETS AND DETAIL SHEETS FOR
INFORMATION REGARDING WHAT AREAS ARE TO RECEIVE COIR MATTING.
2. OVERLAP ADJACENT MATS 3" (IN DIRECTION PARALLEL TO FLOW) AND ANCHOR EVERY 12.-
ACROSS
2"ACROSS THE OVERLAP. THE UPSTREAM MAT SHOULD BE PLACED OVER THE
DOWNSTREAM MAT.
3. EDGES SHOULD BE SHINGLED AWAY FROM THE FLOW OF WATER.
4. LAY MAT LOOSE TO ALLOW CONTACT WITH SOIL. DO NOT STRETCH TIGHT.
5. ANCHOR MAT USING BIODEGRADABLE STAKES OR PINS.
6. CUT 8" x 8" TRENCH ALONG TOP OF BANK FOR MAT TERMINATION AS SHOWN IN FIGURES 1
& 2. EXTEND MAT 2 TO 3 FEET PAST TOP OF BANK.
7. PLACE ADJACENT ROLLS IN THE ANCHOR TRENCH WITH A MINIMUM OF 4" OVERLAP.
SECURE WITH BIODEGRADABLE STAKES OR PINES, BACKFILL ANCHOR TRENCH, AND
COMPACT SOIL.
8. STAPLE AT 12" INTERVALS ALONG OVERLAP.
9. STREAM BANK MATTING TO BE INSTALLED FROM TOE OF BANK TO A MINIMUM OF 2.0' PAST
TOP OF BANK. SEE FIGURE 3 FOR TERMINATION AT TOP OF BANK.
10. IF MORE THAN ROLL IS REQUIRED TO COVER THE CHANNEL FROM THE TOP OF BANK
DOWN TO THE TOE, THEN OVERLAP MATTING BY A MINIMUM OF V.
EROSION CONTROL MATTING MUST MEET OR EXCEED THE
FOLLOWING REQUIREMENTS:
• 100 % COCONUT FIBER (COIR) TWINE WOVEN INTO A
HIGH STRENGTH MATRIX.
• THICKNESS - 0.351N. MINIMUM.
• SHEAR STRESS - 5 LBS/SQFT
•FLOW VELOCITY- OBSERVED 16 FT/SEC
s WEIGHT - 29 OZ/SY
• OPEN AREA - 38%
• SLOPES - UP TO A MAXIMUM OF 1:1
INC. ALL
IUM 9" EROSION
ROL STRAW WATTLE
SIR WATTLE/LOG
INSTALL WATTLE IN 3" TO
5" TRENCH
2.0'
MIN.
NOTE:
EROSION CONTROL WATTLES OR COIR LOGSMATTLES MAY BE USED IN PLACE
OF SILT FENCE.
EROSION CONTROL WATTLE
NOT TO SCALE
"-Y-IN MATTING PE"
FIG. 1 OR FIG. 2
TRENCH APPROX.
SOIL PILE 8" WIDE X 8" DEEP
FROM TRENCH
FLOW
1 ROW OF STAPLES
OR STAKES, MIN. OF
24" O.0
STEP 1
1 ROW OF STAPLES
FLOWOR STAKES, MIN. OF
18" O.0
SOIL FILLED
FROM SOIL PILE,
COMPACT WITH FOOT
STEP 2
FIGURE 1
COIR MATTING
NOT TO SCALE
ADDITIONS
KEY -IN AND/OR
STAKE MATTING
JUST ABOVE
CHANNEL TOE
TRENCH APPROX. SOIL PILE
8" WIDE x 8" DEEP FROM TRENCH
FLOW
FILE NAME: O:\Projects\Resource Environmental Solutions�2018006200RA - TO#15 Twiman Mitigation Site�CADD�PIan Set\20i8006200RA C SHT BREACH.dwg -July 19, 2019 -Noyes Harrigan
STEP 1
STEEL POST
WIRE FENCING
(IF APPLICABLE)
WOVEN FILTER FABRIC --I-,-
4' MAX.
WASHED STONE
(NCDOT #5 OR #57)\
HARDWARE CL
AND COVERED
POSTS
STEEL POST
HARDWARE CLOTH
WASHED STONE (NCDOT #5 OR #57)
1
FLOW
ANCHOR SKIRT;
GENERAL NOTES. MAINTENANCE NOTES: EXCAVATE TRENCH AND COMPACT BACKFILL
1. SEDIMENT FILTER OUTLET AND HARDWARE CLOTH SHALL BE 16 INCHES HIGH BUT NO 1. FILTER OUTLETS SHALL BE INSPECTED BY THE FINANCIALLY RESPONSIBLE PARTY OR
TALLER THAN 18 INCHES. HIS AGENT IMMEDIATELY AFTER EACH RAINFALL AND AT LEAST DAILY DURING
PROLONGED RAINFALL. ANY REPAIRS NEEDED SHALL BE MADE IMMEDIATELY.
2. HARDWARE CLOTH SHALL BE ANCHORED TO THE STEEL POSTS SECURELY USING 2. THE STONE SHALL BE REPLACED PROMPTLY AFTER ANY EVENT THAT HAS CLOGGED OR
APPROPRIATE ANCHORS. HARDWARE CLOTH SHALL BE KEYED IN A MINIMUM OF 12 INCHES
IN LENGTH AND BACKFILLED PROPERLY AS SHOWN IN ABOVE DETAIL. HARDWARE CLOTH TO REMOVED IT.
BE SAME AS STD. #30.09 (19 GAUGE, 114" SPACING). 3. SEDIMENT DEPOSITS SHOULD BE REMOVED WHEN DEPOSITS REACH HALF THE HEIGHT
3. POSTS SHALL BE NO MORE THAN 4 FEET APART. OF THE BARRIER. ANY SEDIMENT DEPOSITS REMAINING IN PLACE AFTER THE SILT
FENCE OUTLET IS REMOVED SHALL BE DRESSED TO CONFORM TO THE EXISTING
4. SITE OUTLETS AT ANY POINT SMALL CONCENTRATED FLOWS ARE ANTICIPATED AND AT THE GRADE, PREPARED AND SEEDED.
DIRECTION OF THE INSPECTOR.
SILT FENCE OUTLET
8 NOT TO SCALE
PURPOSE:
STABILIZED CONSTRUCTION ENTRANCES SHOULD BE USED AT ALL POINTS WHERE TRAFFIC WILL BE
LEAVING A CONSTRUCTION SITE AND MOVING DIRECTLY ONTO A PUBLIC ROAD.
CONSTRUCTION SPECIFICATIONS:
1. CLEAR THE ENTRANCE AND EXIT AREA OF ALL VEGETATION, ROOTS, AND OTHER OBJECTIONABLE
MATERIAL AND PROPERLY GRADE IT.
2. PLACE THE GRAVEL TO THE SPECIFIC GRADE AND DIMENSIONS SHOWN ON THE DETAIL, AND
SMOOTH IT.
3. PROVIDE DRAINAGE TO CARRY WATER TO A SEDIMENT TRAP OR OTHER SUITABLE OUTLET.
4. USE GEOTEXTILE FABRICS BECAUSE THEY IMPROVE STABILITY OF THE FOUNDATION IN LOCATIONS
SUBJECT TO SEEPAGE OR HIGH WATER TABLE.
MAINTENANCE:
MAINTAIN THE GRAVEL PAD IN A CONDITION TO PREVENT MUD OR SEDIMENT FROM LEAVING THE
CONSTRUCTION SITE. THIS MAY REQUIRE PERIODIC TOP DRESSING WITH 2 -INCH STONE. AFTER EACH
RAINFALL, INSPECT ANY STRUCTURE USED TO TRAP SEDIMENT AND CLEAN IT OUT AS NECESSARY.
IMMEDIATELY REMOVE ALL OBJECTIONABLE MATERIALS SPILLED, WASHED, OR TRACKED ONTO PUBLIC
ROADWAYS, OR AIRFIELD PAVEMENTS.
TEMPORARY GRAVEL CONSTRUCTION ENTRANCE
TOP OF BANK TOE OF BANK
RIP RAP APPROACH
- ` (5' MIN) TIMBER MAT CROSSING TIMBER MAT APPROACH
1 ROW OF STAPLES
OR STAKES, MIN. OF
24" O.0
1 ROW OF STAPLES
OR STAKES, MIN. OF
12" O.0
FLOW
SOIL FILLED
FROM SOIL PILE,
COMPACT WITH FOOT
STEP 2
FIGURE 2
WITHOUT WRITTEN
CLASS B RIP f
TIMBER MAT INSTALLED
PERPENDICULAR
INC.,
PLAN VIEW
TIMBER MAT TEMPORARY CROSSING
ONLY COPIES
NTS
MARKED WITH
NOT TO SCALE
CARRIAGE BOLT,
TYPICAL
CLASS B RIP RAP
FILTER FABRIC
`-CARRIAGE BOLT
�--TIMBER MAT,
TYPICAL
zTIMBER MAT INSTALLED
PERPENDICULAR
F TOP OF BANK
O o 0 0
TOE OF BANK, -
TYPICAL APPROXIMATE BASE FLOW
WATER SURFACE
SECTION VIEW
TIMBER MAT
INSTALLED PARALLEL
NOTES:
1. TIMBER MATS SHALL BE USED FOR TEMPORARY CONSTRUCTION ACCESS TO TRAVERSE WET AND/OR MUDDY ARES
ADJACENT TO THE STREAM AND TO CROSS THE STREAM AND OTHER CONCENTRATED FLOW AREAS.
2. THE STREAM CROSSING SHALL BE INSTALLED WHEN FLOW IS LOW. THERE SHALL BE MINIMAL TO NO DISTURBANCE OF
THE CHANNEL BED AND BANKS AS A RESULT OF INSTALLING THE APPROACHES OR CROSSING.
3. THE LENGTH OF TIMBER MAT REQUIRED TO CROSS THE STREAM OR CONCENTRATED FLOW AREAS SHALL BE SUCH
THAT THE TIMBER MAT EXTENDS PAST THE TOP OF BANK ON EACH SIDE OF THE CROSSING A SUFFICIENT DISTANCE TO
SUPPORT THE MAXIMUM EQUIPMENT SIZE USING THE CROSSING.
4. STREAM CROSSINGS SHALL BE INSTALLED WITH THE TIMBER MAT LENGTHS ORIENTED PERPENDICULAR TO THE TOPS
OF THE STREAM BANKS. TIMBER MAT STREAM APPROACHES SHALL BE INSTALLED WITH THE TIMBER MAT LENGTHS
ORIENTED PARALLEL TO THE TOPS OF THE STREAM BANKS.
5. STREAM CROSSING APPROACHES FROM DRY AREAS SHALL BE CONSTRUCTED USING CLASS B RIP RAP PLACED OVER
FILTER FABRIC.
6. ALL TIMBER MATS, FILTER FABRIC, AND RIP RAP SHALL BE COMPLETELY REMOVED FROM THE SITE WHEN THE
CROSSING IS REMOVED.
FLOW
DICKSON
TIMBER MAT INSTALLED
rPj
PARALLEL
�.
-
--- -
-- -
- ----
-----
- ---
(v) 919.782;0495
(17 919.782.9672
www.wkdickson.com
NC. LICENSE NO. F-0374
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PROJ. DATE: JJULY
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Q.C.:
MTS
Q.C. DATE:
JUNE 2019
DRAWING NUMBER:
8
PROD. NO.:
20180062 .00. RA
TIMBER MAT INSTALLED
PERPENDICULAR
INC.,
PLAN VIEW
TIMBER MAT TEMPORARY CROSSING
ONLY COPIES
NTS
MARKED WITH
NOT TO SCALE
CARRIAGE BOLT,
TYPICAL
CLASS B RIP RAP
FILTER FABRIC
`-CARRIAGE BOLT
�--TIMBER MAT,
TYPICAL
zTIMBER MAT INSTALLED
PERPENDICULAR
F TOP OF BANK
O o 0 0
TOE OF BANK, -
TYPICAL APPROXIMATE BASE FLOW
WATER SURFACE
SECTION VIEW
TIMBER MAT
INSTALLED PARALLEL
NOTES:
1. TIMBER MATS SHALL BE USED FOR TEMPORARY CONSTRUCTION ACCESS TO TRAVERSE WET AND/OR MUDDY ARES
ADJACENT TO THE STREAM AND TO CROSS THE STREAM AND OTHER CONCENTRATED FLOW AREAS.
2. THE STREAM CROSSING SHALL BE INSTALLED WHEN FLOW IS LOW. THERE SHALL BE MINIMAL TO NO DISTURBANCE OF
THE CHANNEL BED AND BANKS AS A RESULT OF INSTALLING THE APPROACHES OR CROSSING.
3. THE LENGTH OF TIMBER MAT REQUIRED TO CROSS THE STREAM OR CONCENTRATED FLOW AREAS SHALL BE SUCH
THAT THE TIMBER MAT EXTENDS PAST THE TOP OF BANK ON EACH SIDE OF THE CROSSING A SUFFICIENT DISTANCE TO
SUPPORT THE MAXIMUM EQUIPMENT SIZE USING THE CROSSING.
4. STREAM CROSSINGS SHALL BE INSTALLED WITH THE TIMBER MAT LENGTHS ORIENTED PERPENDICULAR TO THE TOPS
OF THE STREAM BANKS. TIMBER MAT STREAM APPROACHES SHALL BE INSTALLED WITH THE TIMBER MAT LENGTHS
ORIENTED PARALLEL TO THE TOPS OF THE STREAM BANKS.
5. STREAM CROSSING APPROACHES FROM DRY AREAS SHALL BE CONSTRUCTED USING CLASS B RIP RAP PLACED OVER
FILTER FABRIC.
6. ALL TIMBER MATS, FILTER FABRIC, AND RIP RAP SHALL BE COMPLETELY REMOVED FROM THE SITE WHEN THE
CROSSING IS REMOVED.
DICKSON
community infrastructure! consultants
Transportation + Water Resources
Urban Development + Geomatics
720 Corporate Drive
Raleigh, NC 27607
(v) 919.782;0495
(17 919.782.9672
www.wkdickson.com
NC. LICENSE NO. F-0374
ICA,R�r�,,i
`�`��®�' �ESSdO C��Ji��'e
SEAL
" 03 96
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I11 111����e
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2" - FULL SCALE
1" = HALF SCALE
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PROJ. DATE: JJULY
2019
Q.C.:
MTS
Q.C. DATE:
JUNE 2019
DRAWING NUMBER:
8
PROD. NO.:
20180062 .00. RA

a
ELEVATION (FT.)
LOCATION
TC2
TC3
A
916.0
912.0
B
916.5
912.5
LENGTH (FT.)
LOCATION
TC2
TC3
A -B
10
5
TOTAL
20
10
MIN.
PROPOSED GRADING
CLASS I RIP RAP
F�
�� CHANNEL
MAX. SEDIMENT SECTION
7THICKDEPTH CLASS 1
(CLEAN OUT POINT) RIP RAP DISSIPATER PAD
FILTER FABRIC
GENERAL NOTES:
1. DIMENSIONS SHOWN ARE THE MINIMUM ACCEPTED UNLESS OTHERWISE
NOTED.
RIPRAP FILTER BERM & DISSIPATER PAD
WORK A
WATER FL
NOT TO SCALE
2" x 2" WOODEN STAKES
N
3"-4"
WATER FLOW
PLAN VIEW
SECTION VIEW
2OTECT
2" x 2" WOODEN STAKES
PLACED 10' OC
STAKE AT 600 ANGLE
AREA TO PROTECT
EXCESS SOCK MATERIAL -
TO BE DRAWN IN AND
TIED OFF TO STAKE AT
BOTH ENDS
1.5' MIN.
9" MIN.
TOP OF BANK
CLASS
RIP RAP PLAN VIEW FILTER
FABRIC
1.5' MIN. 2:1
SPILLWAY
CREST 1' MIN. OF #5
WASHED STONE
CLASS 1
RIP RAP
'AT a FLOW
:a.. CENTER
�- 5.5' --�
FILTER
SECTION VIEW FABRIC
NOTES:
1. CONSTRUCT DAM ACCORDING TO NCDEQ EROSION CONTROL MANUAL.
2. ROCK DAM RIP RAP SHALL BE NCDOT CLASS 1.
3. PLACE ROCK DAM AS SHOWN ON PLANS.
TEMPORARY ROCK CHECK DAM
NOT TO SCALE
FLOW
v -1
�B
PLAN VIEW
SEE NOTE
LOWEST POINT
NOTES:
1. EXCAVATION SHALL BE PERFORMED ONLY IN DRY AND/OR
ISOLATED SECTIONS OF CHANNEL. DE -WATERING
PUMP
2. IMPERVIOUS DIKES SHOULD BE USED TO ISOLATE WORK AREAS
FROM STREAM FLOW. IMPERVIOUS
DIKE
3. THE CONTRACTOR SHALL NOT DISTURB MORE AREA THAN CAN BE
STABILIZED IN ONE WORKING DAY. A MAXIMUM OF 200 FEET MAY BE
DISTURBED AT ANY ONE TIME.
4. THE CONTRACTOR SHALL BE RESPONSIBLE FOR DETERMINING
PUMP SIZE SUFFICIENT TO PUMP BASE FLOW.
5. DIKE MUST BE CONSTRUCTED OF NON -ERODIBLE MATERIALS SUCH
AS SANDBAGS.
SEQUENCE OF CONSTRUCTION FOR TYPICAL PUMP AROUND SILT BAG
LOCATION
1. INSTALL STILLING BASIN AND STABILIZED OUTFALL USING CLASS A
RIP RAP AT THE DOWNSTREAM END OF THE DESIGNATED PROJECT
WORKING AREA. STABILIZED OUTFALL
CLASS A STONE
WORK
AREA
2. THE CONTRACTOR SHALL INSTALL THE PUMP AROUND PUMP AND
THE TEMPORARY PIPING THAT WILL CONVEY THE BASE FLOW FROM
UPSTREAM OF THE WORK AREA TO THE STABILIZED OUTFALL.
3. INSTALL UPSTREAM IMPERVIOUS DIKE AND BEGIN PUMPING
OPERATIONS FOR STREAM DIVERSION. STABILIZED
OUTFALL CLASS
4. INSTALL THE DOWNSTREAM IMPERVIOUS DIKE AND DEWATERING A STONE
PUMPING APPARATUS IF NEEDED TO DEWATER THE ENTRAPPED
AREA. THE PUMP AND HOSE FOR THIS PURPOSE SHALL BE OF
SUFFICIENT SIZE TO DEWATER THE WORK AREA. THIS WATER WILL
ALSO BE PUMPED TO AN OUTFALL STABILIZED WITH CLASS A RIP
RAP.
5. THE CONTRACTOR SHALL EXCAVATE ANY ACCUMULATED SILT AND
DEWATER BEFORE REMOVAL OF THE IMPERVIOUS DIKE. WHEN
DEWATERING AREA, ALL DIRTY WATER MUST BE PUMPED THROUGH
A SILT BAG. REMOVE IMPERVIOUS DIKES, PUMPS, AND TEMPORARY
FLEXIBLE HOSE/PIPING STARTING WITH THE DOWNSTREAM DIKE
FIRST.
6. ONCE THE WORKING AREA IS COMPLETED, REMOVE ALL RIP RAP
IMPERVIOUS DIKE
\-DISCHARGE HOSE
7CLASS A
STONE
OTE: HOSE SHOULD BE
K
NEPTT OUTSIDE OF WORK
AREA
FILTER FABRIC
EXISTING
GROUND
15' TO 20'
J I -FILTER FABRIC L8" OF CLASS A
STONE
EXISTING
CHANNEL
SILT BAG PROFILE
IMPERVIOUS DEWATERING & BYPASS PUMPING
9
7. ALL WORK IN CHANNEL MUST BE COMPLETED BEFORE REMOVING
IMPERVIOUS DIKE.
SEE NOTE
GROUND LEVEL
EARTH SURFACE
SECTION A -A
2" x 2" WOODEN STAKES
PLACED 5" O.C. WATER FLOW DRAINAGE
DITCH/SWALE NOTE: END OF DIKE AT GROUND LEVEL TO BE HIGHER THAN THE LOWEST POINT OF
FLOW CHECK. SUFFICIENT SANDBAGS ARE TO BE PLACED TO PREVENT SCOURING.
PLAN VIEW
A. PERIMETER CONTROL
B. CHECK DAM
NOTES:
1. RANGE OF PH IS 5.0-8.0 IN ACCORDANCE WITH TMECC 04.11-A, "ELECTROMETRIC PH DETERMINATIONS FOR COMPOST"
2. PARTICLE SIZE - 99% PASSING A 2 IN (50MM) SIEVE WITH A RANGE OF 30%-50% PASSING A 3/8 IN (9.5MM) SIEVE, IN ACCORDANCE WITH
TMECC 02.02-B, "SAMPLE SIEVING FOR AGGREGATESIZE CLASSIFICATION". (NOTE- IN THE FIELD, PRODUCT COMMONLY IS BETWEEN %
IN [12.5MM] AND 2 IN [50MM] PARTICLE SIZE.)
3. MESH OPENING SIZE SHALL BE BETWEEN 1/8" AND 3/8".
4. MOISTURE CONTENT OF LESS THAN 60% IN ACCORDANCE WITH STANDARDIZED TEST METHODS FOR MOISTURE DETERMINATION.
5. MATERIAL SHALL BE RELATIVELY FREE (<1% BY DRY WEIGHT) OF INERT OR FOREIGN MAN MADE MATERIALS.
6. A SAMPLE SHALL BE SUBMITTED TO THE ENGINEER FOR APPROVAL PRIOR TO BEING USED AND MUST COMPLY WITH ALL LOCAL, STATE AND FEDERAL
REGULATIONS.
7. EXAMPLES OF MEDIA THAT MAY BE USED INCLUDE UNTREATED AND NON -PAINTED WOOD PALLETS, AND CLEAN LAND CLEARING DEBRIS OR TREE CHIPS
PROVIDED THEY MEET THE CRITERIA SHOWN ABOVE.
MAINTENANCE
1. INSPECT AT LEAST ONCE A WEEK AND AFTER EACH RAINFALL. MAKE ANY REQUIRED REPAIRS IMMEDIATELY.
2. SHOULD THE FILTER SOCK TEAR, DECOMPOSE OR BECOME INEFFECTIVE, REPLACE IT PROMPTLY.
3. REMOVE SEDIMENT DEPOSITS AS NECESSARY TO PROVIDE ADEQUATE STORAGE VOLUME FOR THE NEXT RAIN AND TO REDUCE PRESSURE ON THE
SOCK. TAKE CARE TO AVOID UNDERMINING THE SOCK DURING CLEANOUT.
4. REMOVE ALL MATERIALS AND UNSTABLE SEDIMENT DEPOSITS AND BRING THE AREA TO GRADE AND STABILIZE IT AFTER THE CONTRIBUTING DRAINAGE
AREA HAS BEEN PROPERLY STABILIZED.
4 COMPOST FILTER SOCK
NOT TO SCALE
DOCUMENT; ADDITIONS OR DELETIONS TO THIS DOCUMENT, IN WHOLE OR IN PART,
.E NAME: 0:\Projects\Resource Environmental Solutions\2018006200RA - T0#15 Twiman Mitigation Site\CARD\Plan Set\2018006200RA C SHL BREACH.dwg - July 19, 2019 - Noyes Harrigan
EXISTING
GRADE
12" COMPOST
FILTER SOCK
(SEE DETAILS)
EXISTING
\� GRADE
NOTE:
1. MAINTAIN HAUL ROAD DURING CONSTRUCTION.
2. RETURN TO ORIGINAL GRADE AT THE COMPLETION OF WORK.
3. VEGETATE ALL DISTURBED AREAS.
4. REMOVE COMPOST FILTER SOCK UPON ESTABLISHMENT OF VEGETATION.
TYPICAL HAUL ROAD SECTION DETAIL
NOT TO SCALE
NOT TO SCALE
MIDDLE LAYER
BOTTOM LAYER
TOP LAYER
EARTH SURFACE
v Y n
DICKSON
communityinfrastructure consultants
TRENCH 0.25'
ENDS OF BAGS IN
DEEP ONLY
ADJACENT ROWS BUTTED
WHEN PLACED
SLIGHTLY TOGETHER
ON EARTH
SECTION B -B
SURFACE
SANDBAG BARRIERS SHALL BE CONSTRUCTED OF THREE LAYERS OF SANDBAGS. THE BOTTOM LAYER SHALL
CONSIST OF 3 ROWS OF BAGS, THE MIDDLE LAYER SHALL CONSIST OF 2 ROWS OF BAGS AND THE TOP LAYER SHALL
CONSIST OF 1 ROW OF BAGS. THE RECOMMENDED DIMENSION OF A FILLED SANDBAG SHALL BE APPROXIMATELY 0.5
FT X 0.5 FT X 1.5 FT.
ENT, MARKED WITH
SANDBAG IMPERVIOUS DIKE
NOT TO SCALE
POTENTIAL STOCKPILE AREA: 12" COMPOST
FILTER SOCK OR SILT FENCE TO BE PLACED
AROUND STOCKPILE AREA PRIOR TO
PLACEMENT OF MATERIAL
STOCKPILE STORAGE AREA
NOT TO SCALE
ALID, TRUE COPIES.
v Y n
DICKSON
communityinfrastructure consultants
Transportation + Water Resources
Urban Development + Geomatics
720' Corporate Drive
Raleigh, NC 27607
(v) 919.782.0495
(f) 919.782.9672
www.wkdickson.com
NC. LICENSE NO. F-0374
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FULL SCALE: V=30
0 30 60
2" - FULL SCALE
1" = HALF SCALE
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PROD. DATE: JULY
2019
Q.C.:
MTS
Q.C. DATE: JUNE
2019
DRAWING NUMBER:
9
PROJ. NO.:
20180062.00. RA