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HomeMy WebLinkAboutNCC221401_ESC Approval Submitted_20220408PROP. CMP RISER (4' DIA) RIM:823.00 v A WS//*C ER ION CONT L NOS I�E / \�' V PROP. RIP RAP CLASS B A V \ \ \ V A ��/ CONSTRUCTION SEQUENCE PHASE 1 I 7' wX 12' Lx 12° T // INV ou9.1z \A \ \ A 'PLAN APPRQVED�FOR CONS�f T OWN / I I I I I I I I I INC. FILTER FABRIC/� 1. OBTAIN GRADING/EROSION CONTROL PLAN APPROVAL FROM THE CITY OF WINSTON SALEM. I ' I / 2. SET UP AN ON -SITE PRE -CONSTRUCTION MEETING WITH EROSION CONTROL INSPECTOR FROM CITY OF WINSTON SALEM TO I INV. 798.00 I PROP. FAIRCLOTH SKIMMER w 1 ` l wo °� b�� I I $°° I / ° I This Ian\com lies v�rth Chi te�8, ec�ti n 4 r rIs\ (� roJ DISCUSS EROSION CONTROL MEASURES. FAILURE TO SCHEDULE MEETING 48 HOURS PRIOR TO ANY LAND DISTURBING I / I � SILT FENCE TO BE SIZE: 5.0" \ p p p � I b "�� ACTIVITY IS A VIOLATION AND SUBJECT TO A FINE. / / / / I PLACE BEHIND OUTLET $04 ORIFICE DIA: 4.7" % \ / \ \ \ j of the Win ton S lem/Forsyth ou ty n fled D; I ��t I PROP. 20' WIDE OVERFLOW 3. PRIOR TO ANY CLEARING OR INSTALLATION OF EROSION CONTROL DEVICES, CONTRACTOR SHALL STAKE CLEARING LIMITS / / o ` \ sos I INV IN: 822.00 brd`inance� printe"et of t e s elf/alp O e pl ns� / / / / PROP. 112.41 LF OF 24" CMP @ 1.00 /o ELEV: 824.00 / / AND STAKE ALL TREES, STRUCTURES, AND WETLANDS TO REMAIN AND BE PROTECTED. ALL BUFFERS AND WETLANDS / / / / / ` / s�2 - RIP -RAP SHALL EXTEND DOWN / / be kept on the co s`frUCtloIrr's f0 refere Ce�vyhe� installing SHALL BE CLEARLY DELINEATED IN THE FIELD TO BE PROTECTED. l r i / \ FILL SLOPE TO EXISTING GRADE / \ / p g / 4. INSTALL TEMPORARY CONSTRUCTION ENTRANCE, ANY PERIMETER CONSTRUCTION FENCING AND SILT FENCE. TIRE WASH / / / / / I o / \ 81 / / i \ \ required erosion- control' measiires� I MAYBE REQUIRED IF CONSTRUCTION ENTRANCE IS NOT SUFFICIENT TO RETAIN SOIL. CONTRACTOR TO BLOCK ALL I / i / \ 82 POSSIBLE ENTRANCES EXCEPT ACCESS ENTRANCES TO ADJACENT SITE W/ FENCING AND ORANGE BARRELS. / / / $24 ®11 00 CONTRACTOR TO DEMOLISH EXISTING STRUCTURES (CONTRACTOR TO GATHER SEPARATE PERMIT). / / / / 826 - / DRAT AGE BASIN (TYP.)� I 5. THE CONTRACTOR SHALL INSTALL PROPOSED TEMPORARY DIVERSION AND CLEAN WATER DITCHES. STABILIZATION SHALL _ _ < 1 / OCCUR UPON COMPLETION OF DITCHES. I I _ s22 _ -� - / '��� �� ® mattheWO� / �0��/2' 2 �� � l I 6. INSTALL REMAINING SILT FENCE, DIVERSION DITCHES, AND ANY OTHER MEASURES AS SHOWN ON PLANS OR REQUIRED BY I - I \ \ \d INSPECTOR CLEARING ONLY AS NECESSARY TO INSTALL THESE DEVICES. I - 11 \ \ \ \ \ \ �\ \ Q \ \ PROP. TEMPORARY I7. CONTRACTOR SHALL MAINTAIN ACCESS FOR EXISTING HOME TO REMAIN DURING CONSTRUCTION PERIOD. DIVERSION DITCH (TYP.) \ 8. CALL FOR ON -SITE INSPECTION BY INSPECTOR. WHEN APPROVED, INSPECTOR ISSUES THE GRADING PERMIT AND I PROP. SILT FENCE STONE / \ \ \ 11 \ 1 \\ \\� \ \ \ �� \ \ (REFER TO DETAILS) CLEARING AND GRUBBING MAY BEGIN. OUTLET IN LOW AREAS d \ PROP. AREA FOR BORROW- \ \ 9. THE CONTRACTOR SHALL DILIGENTLY AND CONTINUOUSLY MAINTAIN ALL EROSION CONTROL DEVICES AND STRUCTURES. I 1 OF CONCENTRATION \10. CONTRACTOR TO ENSURE NCDEQ SELF -INSPECTION PROGRAM IS PREFORMED THROUGHOUT THE DURATION OF THE I \ / / PROJECT. THE SELF -INSPECTION REPORT SHOULD BE COMPLETED AFTER EACH PHASE OF THE PROJECT. PHASES \ INCLUDE BUTARE NOT LIMITED TO: INSTALLATION OF PERIMETER EROSION CONTROL MEASURES, CLEARING AND \ GRUBBING, COMPLETION OF ANY GRADING OF SLOPES OR FILLS, INSTALLATION OF STORM DRAINAGE SYSTEMS, \ COMPLETION OF CONSTRUCTION OR DEVELOPMENT, AND ESTABLISHMENT OF PERMANENT OR TEMPORARY GROUNDCOVER \ 11. UPON COMPLETION OF GRADING ACTIVITIES, GROUND COVER SHALL BE PERMANENTLY STABILIZED AND SEEDED \ / / \ \ \ \ V \\ � I A \ I II w I I I I \ ACCORDING TO SEEDING SPECIFICATIONS ON THE EROSION CONTROL DETAIL SHEET. \ \ - I I I \ \\ PROP. BAFFLES N 1 I I I I I w / \ V A I \ V\\ V 1 a\ ! � I PROP. SEDIMENT BASIN 2 I / \ \ w / � MAX DA: 18.99 ACRES / \Cb I \V I I / \ \ I I I A ��� A A \ \ N SURFACE AREA: 46,083 SF / I / / / / PROP. DOUBLE I \ \ \ � I I l PROP. SILT FENCE (TYP.) \ \ I I 1 I 1 \ \ \ \ 1 I I I VOLUME: 86,971 CF OW HIGH HAZARD / \ / \ o LLJSILT FENCE (TYP.) / / -� _ / \ 11 TOP OF BASIN: 826.00 / / N / I ro � I I I I I I \ / \ I I 1 \ \ \ w \ \ \ / I I I I I 11 I BOTTOM OF BASIN: 821.00 / / / / / / / \ w I I I I \ / 1 I I \ 8s w� \ 1 1 \ (INC. 1' FOR SEDIMENT) / LLJ ID V ` a I PROP. DENUDED I I I I I / \ \\ \\ SEDIMENT BUMF 40'LX15'WX2'D AREA a30 / IW/ 3:1 SIDE SLOPES / / CONTRACTOR TO FILL THIS AREA TO \ \ \\\\ �\ ��� / \ \ l PLOP. SILT FENCE \ ELEVATION 826 AS PART OF PHASE 1 \\\\ \ \ I / / / I I ` I I \ \ I OUTLET (TYP.) / \ \ \ \ _Q - EROSION TO HELP CONSTRUCT BASIN I 1 1 < 1 84p < PROP. CLASS B WX 12" T RAP 12' L X T W X � I I PROP. TEMPORARY 1 \ \ \ \ \ I / / / \\ \ I I I I I I I I / / - \ \ w \\ \ \ \ \ \ \ / w DIVERSION DITCH (TYP.) PROP. 20' WIDE OVERFLOW ® (REFER TO DETAILS) / / as° ELEV: 842.00 \ G7 I I ( / I CONTRACTOR TO CUT GRADE IN / A DA-3 \I PROP. FAIRCLOTH SKIMMER I \ \ \ I I I ( \ \\ \ \ \ \ 1 I I i THIS AREA FOR CONSTRUCTION / 1.45 AC OF BASIN ` \ I sso SIZE:2.5" / \ - - j 3 1 V A ORIFICE DIA: 2.2" b\ INV IN: 836.00 o I I 1 \ \ Q \ \ \ INV OUT: 836.00 / \ I I - - \ \\ \ \ 8�0 �i I I I / 4h \ I I \ I I \ I \� \ 1 \ \I \ \ I DA-2 ,A_ ` \ I 17.61AC PRI OPI I. BAF\FLES a3 j I II \ \I 1 \ \ \\ \\ \ \ \\ \ 1 \ \\ \ \ \ P/ROP\. 9ILT/ FE GE PROP. SKIMMER BASIN 1 o OUTLET (TYP.) MAX DA: 5.42 ACREPRO/. SEDIM/NT /S U/MP/ 9SSURFACE AREA: 8,36F D V \ / \ \ \ \ I \ \ \ I \ \ \ \\ \ \ \ \ \ \ / / W/ 3:1 SIDE SLOPES VOLUME: 14,436 CF �i / TOP OF BASIN: 840.00 1 \ \ BOTTOM OF BASIN: 835.00 (INC. 1' FOR SEDIMENT) - - \ \ I \ \ \ / / / \ \ \ \ ° \ \ \ I I ROP. INLET PROTECTION (TYP.) I ( V 2 AC \ A PROP. TEMPORARY \ - DIVERSION DITCH (TYP.) (REFER TO DETAILS) 0 \ V \ \ V \ \ cn I I \ \ \ \ \ \ \ \ cn \ \ >\ � Z PROP. DOUBLE I / / \ \ cf) ROW HIGH HAZARD I J / l / l l l ' I T ?L , I I I j� SILT FENCE (TYP.) I I / / / I zc75 cf)�� = I / / / I I I I � w j \ DRIVEWAY \ \ \ \ \ (nco cn PROP. CONSTRUCTION ENTRANCE \ I• 5Z I I I \ \ \ I \ I I m I I \ �-- I I x� \ I II \ / / --- - --- - ,I ,z \ \ \ 1uf / �, , - I• - 1� ls\ � \� • ��, V �w coco I I \ \ \ I s 8 AW\ ��� ASS Tco W BROOKBER ------ /-- - -� - 80 S / RY FgRMRCLE S \ _ _ _ �� _ L� _W SSST co 777,7- LEGEND SILT FENCE FEMA FLOODWAY ENCROACHMENT TEMP. DIVERSION TD-> TD-> DRAINAGE DIVIDE DENUDED LIMITS CONSTRUCTION ENTRANCE EX. TREE TO REMAIN W/ TREE BARRICADE ROCK DONUT INLET PROTECTION WIRE AND GRAVEL CONVERTED TO SILT SACK INLET o, PROTECTION DURING ROADWAY CONSTRUCTION �yl�■�a►�.I��c•�►1xl��r��r TOTAL MAX DENUDED AREA = 18.96 AC CONTROL OF WIND EROSION: 1. BARE EARTH AREAS SHALL BE WATERED DURING CONSTRUCTION AS NECESSARY TO MINIMIZE THE TRANSPORT OF FUGITIVE DUST. IT MAY BE NECESSARY TO LIMIT CONSTRUCTION VEHICLE SPEED IF BARE EARTH HAS NOT BEEN EFFECTIVELY WATERED. IN NO CASE SHALL FUGUTIVE DUST BE ALLOWED TO LEAVE THE SITE UNDER CONSTRUCTION. 2. AS SOON AS PRACTICAL AFTER COMPLETION OF CONSTRUCTION, BARE EARTH AREAS SHALL BE VEGETATED. 3. AT ANY TIME BOTH DURING AND AFTER SITE CONSTRUCTION THAT WATERING AND/OR VEGETATION ARE NOT EFFECTIVE IN CONTROLLING WIND EROSION AND/OR TRANSPORT OF FUGITIVE DUST, OTHER METHODS AS ARE NECESSARY FOR SUCH CONTROL SHALL BE EMPLOYED. THESE METHODS MAY INCLUDE ERECTION OF DUST CONTROL FENCES. IF REQUIRED, DUST CONTROL FENCES SHALL BE CONSTRUCTED IN ACCORDANCE WITH THE DETAIL FOR A SILT FENCE EXCEPT THE MINIMUM HEIGHT SHALL BE 4 FEET. EROSION CONTROL NOTES: 1. ALL EROSION CONTROL MEASURES SHALL BE IN ACCORDANCE WITH THE N.C. EROSION AND SEDIMENT CONTROL PLANNING AND DESIGN MANUAL AND THE CITY OF WINSTON SALEM STANDARDS, WHICHEVER IS MORE STRINGENT. 2. ALL CURB INLETS AND DROP INLETS SHALL HAVE INLET PROTECTION UNTIL FINAL EROSION CONTROL INSPECTOR APPROVAL. DROP INLETS SHALL BE PROTECTED USING WIRE AND GRAVEL INLET PROTECTION. CURB INLETS SHALL UTILIZE WIRE AND GRAVEL INLET PROTECTION UNTIL ROADS ARE STONED AROUND THE INLET, AT WHICH TIME THE INLET PROTECTION SHALL BE CONVERTED TO SILK SACK INLET PROTECTION. 3. ANY GRADING BEYOND THE DENUDED LIMITS SHOWN ON THE PLAN IS A VIOLATION OF STATE (NCDEQ) REGULATIONS AND IS SUBJECT TO A FINE. 4. GRADING MORE THAN ONE ACRE WITHOUT AN APPROVED EROSION CONTROL PLAN IS A VIOLATION OF THE STATE (NCDEQ) AND CITY OF WINSTON SALEM EROSION CONTROL ORDINANCE AND IS SUBJECT TO A FINE. 5. DISTURBED AREAS OF THE SITE WHERE CONSTRUCTION ACTIVITY HAS CEASED FOR MORE THAN 14 DAYS SHALL BE TEMPORARILY SEEDED AND WATERED. AREAS WHERE FINAL GRADING HAS BEEN COMPLETED FOR MORE THAN 14 DAYS SHALL BE TEMPORARILY OR PERMANENTLY SEEDED. ALL DISTURBED AREAS ON SLOPES GREATER THAN 3:1 AND ON THE SITE PERIMETER AREAS MUST BE TEMPORARILY SEEDED AFTER 7 DAYS. ALL PERIMETER DIKES, SWALES, DIVERSIONES AND SLOPES SHALL BE TEMPORARILY SEEDED AFTER 7 DAYS. 6. ADDITIONAL MEASURES TO CONTROL EROSION AND SEDIMENT MAY BE REQUIRED BY A REPRESENTATIVE OF THE STATE (NCDEQ) DEPARTMENT OF LAND QUALITY. 7. SLOPES SHALL BE GRADED NO STEEPER THAN 3:1 UNLESS NOTED OTHERWISE. 3:1 FILL SLOPES GREATER THAN 10' MAY REQUIRE ADDITIONAL TERRACING. 8. PERMANENT CUT AND FILL SLOPES PLACED ON A SUITABLE FOUNDATION SHOULD BE CONSTRUCTED AT 3:1 (HORIZONTAL TO VERTICAL) OR FLATTER UNLESS NOTED OTHERWISE. PERMANENT SLOPES OF 3:1 SHOULD BE CONSTRUCTED WHERE MOWING IS DESIRABLE AND AS INDICATED. IF FILL MATERIAL IS BROUGHT ONTO THE PROPERTY OR IF WASTE MATERIAL IS HAULED FROM THE PROPERTY, THEN THE CONTRACTOR SHALL DISCLOSE THE LOCATION OF ANY OFF -SITE BORROW LOCATION AND/OR WASTE BURIAL LOCATION TO THE EROSION CONTROL INSPECTOR. 9. APPROVAL OF THIS PLAN IS NOT AN AUTHORIZATION TO GRADE ADJACENT PROPERTIES. WHEN FIELD CONDITIONS WARRANT OFF -SITE GRADING, PERMISSION MUST BE OBTAINED FROM THE AFFECTED PROPERTY OWNER. 10. ALL EROSION CONTROL DEVICES SHALL REMAIN UNTIL SITE HAS BEEN PERMANENTLY STABILIZED AND APPROVED BY EROSION CONTROL INSPECTOR. 11. TOPO MAY REQUIRE DIVERSION DIVERSIONES TO BECOME BERMS IN SOME AREAS. 12. CHANNEL LINING OR MATTING SHALL BE PROVIDED FOR DIVERSION DIVERSIONES WHERE VELOCITIES EXCEED 2 FPS. 13. CONTRACTOR TO ENSURE NCDEQ SELF -INSPECTION PROGRAM IS PREFORMED THROUGHOUT THE DURATION OF THE PROJECT. THE SELF -INSPECTION REPORT SHOULD BE COMPLETED AFTER EACH PHASE OF THE PROJECT. PHASES INCLUDE BUT ARE NOT LIMITED TO: INSTALLATION OF PERIMETER EROSION CONTROL MEASURES, CLEARING AND GRUBBING, COMPLETION OF ANY GRADING OF SLOPES OR FILLS, INSTALLATION OF STORM DRAINAGE SYSTEMS, COMPLETION OF CONSTRUCTION OR DEVELOPMENT, AND ESTABLISHMENT OF PERMANENT OR TEMPORARY GROUND COVER. GENERAL SEDIMENT BASIN NOTES: 1. AREA UNDER EMBANKMENT SHALL BE CLEARED, GRUBBED, AND STRIPPED OF ANY VEGETATION AND ROOT MATERIAL. 2. THE FILL MATERIAL FOR THE EMBANKMENT SHALL BE FREE OF ROOTS OR OTHER WOODY VEGETATION AS WELL ORGANIC MATERIAL OR OTHER OBJECTIONABLE MATERIAL. THE EMBANKMENT SHALL CONSTRUCTED. SPILLWAYS SHOULD NOT BE CONSTRUCTED THROUGH FILL SECTIONS. ALL SPILLWAYS SHOULD BE LINED AND/OR RIPRAPPED. 3. SEDIMENT SHALL BE REMOVED AND BASIN RESTORED TO ITS ORIGINAL DIMENSIONS WHEN THE SEDIMENT HAS ACCUMULATED. REMOVED SEDIMENT SHALL BE DEPOSITED IN A SUITABLE AREA IN SUCH A MANNER THAT IT WILL NOT ERODE. 4. THE BASINS SHALL BE INSPECTED AFTER EACH RAIN AND REPAIRS MADE AS NECESSARY. 5. CONSTRUCTION OPERATION SHALL BE CARRIED OUT IN SUCH A MANNER THAT EROSION AND WATER POLLUTION IS MINIMIZED. 6. SEDIMENT BASIN EMBANKMENTS SHOULD BE PROVIDED WITH EROSION CONTROL AND STABILIZATION. 7. STORAGE AREA MAY BE CONSTRUCTED IN ANY SHAPE PROVIDED THE MINIMUM STORAGE VOLUME REQUIREMENT IS MET. THE BASIN SHOULD ALSO BE ORIENTED SUCH THAT THE FILTER AND THE MAIN FLOW OF WATER AND SEDIMENT ARE ON OPPOSITE ENDS ON THE LONGER BASIN DIMENSIONS. 8. THE LENGTH OF THE STONE OUTLET (SPILLWAY) IS TO BE BASED ON A 10 YEAR STORM. 9. CLEANOUT STAKES SHALL BE PLACED IN ALL SEDIMENT BASINS AT THE LOW POINT IN THE BASIN. THE STAKES SHALL BE MARKED SHOWING THE HALF FULL, CLEANOUT POINT, OF THE BASIN. 10. THE BERM ON SEDIMENT BASINS SHALL BE SEEDED ONCE FINAL GRADE HAS BEEN REACHED. THE SILT FENCE MAY BE REMOVED IF PERMISSION HAS BEEN GRANTED BY THE ON -SITE INSPECTOR AFTER THE GRASS HAS GERMINATED AND STABLE GROUND HAS BEEN ESTABLISHED. 11. WASHED STONE AND WIRE BACKING SHALL BE USED WITH SILT FENCE WHENEVER SILT FENCE IS PLACE AT THE TOE OF A SLOPE 10' VERTICAL. SOILS: CIB (A SOILS) CLIFFORD SANDY LOAM, 1 % TO 6% SLOPES FaB (B SOILS) FAIRVIEW FINE SANDY LOAM, 2% TO 6% SLOPES FaC (B SOILS) FAIRVIEW FINE SANDY LOAM, 6% TO 10% SLOPES FaD (B SOILS) FAIRVIEW FINE SANDY LOAM, 10% TO 15% SLOPES FaF (B SOILS) FAIRVIEW FINE SANDY LOAM, 15% TO 45% SLOPES CoA (B SOILS) CODORUS LOAM, 0 TO 2 PERCENT SLOPES EROSION CONTROL PLAN APPROVED GRADING PERMIT REQUIRED PRIOR TO LAND DISTURBING BEFORE YOU DIG! CALL 1-800-632-4949 N.C. ONE -CALL CENTER Know what'sbelow. Call before you dig. THE LOCATIONS OF EXISTING UNDERGROUND UTILITIES ARE SHOWN IN AN APPROXIMATE WAY ONLY AND HAVE NOT BEEN INDEPENDENTLY VERIFIED BY THE OWNER OR ITS REPRESENTATIVE. THE CONTRACTOR SHALL DETERMINE THE EXACT LOCATION OF ALL EXISTING UTILITIES BEFORE COMMENCING WORK, AND AGREES TO BE FULLY RESPONSIBLE FOR ANY AND ALL DAMAGES WHICH MIGHT BE OCCASIONED BY THE CONTRACTOR'S FAILURE TO EXACTLY LOCATE AND PRESERVE ANY AND ALL UNDERGROUND UTILITIES. NOTICE: CONSTRUCTION SITE SAFETY IS THE SOLE RESPONSIBILITY OF THE CONTRACTOR; NEITHER THE OWNER NOR THE ENGINEER SHALL BE EXPECTED TO ASSUME ANY RESPONSIBILITY FOR SAFETY OF THE WORK, OF PERSONS ENGAGED IN THE WORK, OF ANY NEARBY STRUCTURES, OR OF ANY OTHER PERSONS. COPYRIGHT (K�P022 ATWELL, PLLC NO REPRODUCTION SHALL BE MADE WITHOUT THE PRIOR WRITTEN CONSENT OF ATWELL, PLLC 24 HOUR EMERGENCY CONTACT mi DO JO N CD W 00 N Wcn00 o- N M W M N Q zJ cD O W WLCiU 0 0 < 0- J o' O � O W (n < Q 0 Z W Z 0 0 Q 0 Z Z_ J Z = Z O D O 0 Z W c LU Y a >Z = ~ U 2 Z Q > 0 0 H W Q O U- O Z m U H W Q a W U J LL Z W a- O J > LU � LU Q a O p[ O �d 0 m m o m Q LL LU 0 V O o cr- LU N DATE 02/17/2022 REVISIONS SEAL 038607 ,,� AID • • G • ��, ���, /11111111\\ 02/18/2022 0 30' 60' SCALE: 1 "=60' DRAWN BY: MC CHECKED BY: DGG PROJECT MANAGER: DGG JOB #: 21003640 FILE CODE: ## SHEET NO. C _ 3.0