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HomeMy WebLinkAboutSW3211202_Plansheet - Grading_Drainage Plan_20220223VICINITY MAP NTS M CA I EA- f I CYPRESS CREEK RENEWABLES 601 WEST MAIN STREET .. SUITE A CARRBORO, NORTH 27510 PHONE: (919) 3704938 SITE ADDRESS: 919 OLD PAGELAND MONROE ROAD MONROE, UNION COUNTY , NORTH CAROLINA CSD PROJECTNUMBER: CCR=1504 SHEET INDEX C-1 COVER SHEET C-2 EXISTING CONDITIONS C-3 SITE PLAN EROSION CONTROL SELF INSPECTION. C-4 EROSION CONTROL PLAN 1. 2. 3. 4. 5. THE PURPOSE OF SELF INSPECTION IS TO MAKE SURE THAT THE APPROVED EROSION AND SEDIMENTATION CONTROL PLAN IS BEING FOLLOWED, INCLUDING THE INSTALLATION AND MAINTENANCE OF MEASURES, AND THE PROVISIONS OF GROUND COVER 1N A TIMELY MANNER. ALL OF THE EROSION AND SEDIMENTATION CONTROL MEASURES, SHOWN ON THE EROSION CONTROL PLAN, WHICH MAY INCLUDE SEDIMENTATION CONTROL BASINS, SEDIMENTATION TRAPS, SEDIMENTATION PONDS, ROCK DAMS, TEMPORARY DIVERSIONS, TEMPORARY SLOPE DRAINS, ROCK CHECK DAMS, SEDIMENT FENCE OR BARRIERS, ALL FORMS OF INLET PROTECTION, STORM DRAINAGE FACILITIES, ENERGY DISSIPATERS, AND STABLIL12ATION METHODS OF OPEN CHANNELS MUST BE INSPECTED. A "SELF -INSPECTION REPORT FOR LAND DISTURBING ACTIVITYAS REQUIRED BY NCGS 113A-54.1 " MUST BE COMPLETED. AN ALTERNATIVE IS TO MAKE NOTATIONS ON THE COPY OF THE APPROVED EROSION AND SEDIMENTATION CONTROL PLAN THAT IS KEPT ON THE PROJECT SITE. THE SELF -INSPECTION REPORT FOR LAND -DISTURBING ACTIVITY 1S TO BE COMPLETED AFTER EACH PHASE OF THE APPROVED EROSION CONTROL AND SEDIMENTATION CONTROL PLAN IS COMPLETE. THESE PLANS MAY INCLUDE: INSTALLATION OF PERIMETER EROSION AND SEDIMENT CONTROL MEASURES; CLEARING AND GRUBBING OF EXISTING GROUND COVER; COMPLETION OF ANY PHASE OF GRADING OF SLOPES OR FILLS; INSTALLATION OF STORM DRAINAGE FACILITIES; COMPLETION OF CONSTRUCTION OR DEVELOPMENT; ESTABLISHMENT OF PERMANENT GROUND COVER SUFFICIENT TO RESTRAIN EROSION. i THE RECORDS MUST BE MADE AVAILABLE TO THE EROSION CONTROL INSPECTOR AT THE SITE. ANY DOCUMENTATION OF INSPECTIONS THAT OCCUR ON A COPY OF THE APPROVED EROSION AND SEDIMENTATION CONTROL PLAN SHALL OCCUR ON A SINGLE COPY OF THE PLAN AND THAT PLAN SHALL BE MADE AVAILABLE ON THE SITE. ANY INSPECTION REPORTS SHALL ALSO BE MADE AVAILABLE ON THE SITE. d REVISIONS: A NO. DATE DESCRIPTION BY C-5 DETAILS ALL CONSTRUCTION TO BE IN ACCORDANCE WITH ALL NCDENR LAND QUALITY AND NCDOT STANDARDS AND SPECIFICATIONS. SITE INFORMATION SITEADDRESS: 919 OLD PAGELAND MONROE ROAD SITE TAX OR PIN #: 09093009J DEVELOPER: CYPRESS CREEK RENEWABLES 601 WEST MAIN STREET, SUITE A CARRBORO, NORTH CAROLINA 27510 CONTACT.KEITH P. BILLY, P.E. PHONE.' (919) 370-1938 DESIGNER: COMMERCIAL SITE DESIGN, PLLC 8312 CREEDMOOR ROAD RALEIGH, NORTH CAROLINA 27613 PHONE. (919) 848-6121 FAX.' (919) 848-3741 SITE AREA: TRACT 1: 24.69 ACRES TRACT 2. 25.25 ACRES TOTAL: 49.94 ACRES DISTURBED AREA: 31.23 ACRES i 3 w P-0266 ``��i IVOR11A ,d � CARo ��Sl s�'•.�'9 (919) 848-6121, FAX: (919) 848.3741 WWW.CSITEDE'SIGN.COM C.1 SUMMERLIN DARY_R__ I I I• I I I I I I m I RIVER BASIN = YADKIN RIVER OLD MONROE-MARSHVILLE ROAD SITE O �00 I I I 0m -o00 a M ma oZ 1 za m � o w N/F w m a rn M �,,w w o MONROE BYPASS -HIGHWAY 601 LLC ET AL w 'D �L` W) ' c� , 706.499 w D.B. 4079, PG. 62 z o ``� o i° 1 0 a PARCEL ID: 09066001 0 N� II 0 ' 1675.76' ,�,�� v m / ZONED: RA-40 -� o °' 10wo I F- m ¢ VICINITYMAP ; N lCj ♦ m zo c3 11 a oal NTS w oz zwow I� _ f / 969 `+18'14'W r� cl A Jp SO4'39'48"VI eATF �0� �. w 263.88' App CYIyCHE,s l £E f LOCATI jv ` 04 � " I /6' -. /!III j ,` --` ' ..' - ,-' `._... --= -.' -�.. `",`,.. .,,.,, .. •-- .. .. . ,,,� o 999 Q- I Nfdl A ® `d, `'.. \ .,. '•, \ \ °`a � `. � ,,.,.» -'"' ,-,,.....* ...---, -.';pie """" 'w. 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THE INFORMATION SHOWN HEREIN WAS TAKEN FROM AN ALTA/ACSM LAND TITLE SURVEY PREPARED BY.• FRONTIER LAND SURVEYING 1394 - B WALKUP AVENUE MONROE, N.C. 28110 PHONE: (704) 283-9726 2. THE LOCATIONS OF ALL UTILITIES SHOWN ON THESE PLANS ARE BASED ON THE AVAILABLE INFORMATION. THE CONTRACTOR SHALL VERIFY THE EXACT LOCATION OF LINE TABLE LINE LENGTH BEARING Ll 30.01 S79.37'30'W L2 104.40 N09.20'16'W L3 108.44 N06.04124'W L4 29.94 N82.03'05'E L5 38.65 S64.00'14'E L6 26.36 S65.07'44'E L7 29.52 S66.44'57'E L8 29.21 S68.08'30'E L9 28.47 S69.55'11'E L10 28.02 S72.57'12'E L11 27.90 S75.30'14'E L12 28.03 S77.33'03'E L13 29.55 S80.28'28'E L14 27.51 S82.33'42'E L15 27.54 S84.45'03'E L16 28.28 S86.47'35'E L17 53.63 S88.46'18'E L18 53.33 N89.40'16'E L19 108.13 N89.06'23'E L20 110.48 N89.43'47'E L21 55.03 S89.15'22'E L22 65.27 S87'13'43'E L23 84.06 S84.44'47'E L24 24.40 S06.13'44'W L25 29.52 N85.29'21'E #%`Pe SITE 0� APA ., 5/ m� a = R-0266 "= c to 26493 s, (py rtrt ,e J. !I219 D N GRAPHIC SCALE 100 0 50 100 200 1 inch = 100 fi~ I Z ' W IX J N Z CID WW UGo LQ Y� Z cro O H Z dv v) E= coCo w 0 d a IVU CCR-1504 ME. CCR1504-EC BY. STH 1"= 100' 03/ M015 NO. C-2 Z O a U W 0 �I O ci :z Figure S5-3: 51 Screen (Typical) SUMMERUN DAIRY ROAD OLD MONROE-MARSHVILLE ROAD SITE m �0 6 m� VICINITY MAP NTS I 1 I Y W M 1 1 IN 1 N I J I 1 c� I I I I O I J 1 1 I 1 O Q i J O� I I 1 00 I O Co 1 j i 1 t 1 J 1 K J _O N/F CENTER O i,i+s I ROCK REST COMMUNITY N D.B. 93, PG. 450 WETLANDS i i x o PARCEL ID: 09090006 ZONED: RA-40 W / � x -- --------- / / / SITE LEGEND SPILL CURB HANDICAP RAMP F.F.E. HANDICAP STALL CONCRETE PROPERTY LINE V EX. FIRE HYDRANT POLE MOUNTED AREA LIGHT PROPERTY CORNER FINISH FLOOR ELEVATION INN Cu _ — r GENERAL NOTES: 1. THE INFORMATION SHOWN HEREIN WAS TAKEN FROM AN ALTA/ACSM LAND TITLE SURVEY PREPARED BY: FRONTIER LAND SURVEYING 1394 - B WALKUP AVENUE MONROE, N.C. 28110 PHONE: (704) 283-9726 THE LOCATIONS OF ALL UTILITIES SHOWN ON THESE PLANS ARE BASED ON THE AVAILABLE INFORMATION. THE CONTRACTOR SHALL VERIFY THE EXACT LOCATION OF —X X— FENCE 1 inch = 100 ft �I m m P � N m J W~ Q W co Z W It 04 -•. O � cy/)Co O I� WWQmW Z W�Z �oSQ= � d Uccvo RE Z 0 Q J LU cc U C/) it W O ot 0 Z � o W W z z � z Uj Ww . O 'Q O o Q t� J � O 11 ""l CCR-1504 ME. CCR1504-SP I BY. STH 1"= 100' OW 112015 NO. C-3 3 w Ln 0 00 00 N u Z a) 0 c 0 3 O u c 0 'c Ln Ln i 3 0 E ;o lL SUMMERLIN GRADING/EROSION CONTROL NOTES: GRADING/EROSION CONTROL NOTES (cont.): GRADING/EROSION CONTROL NOTES (cont.): DAIRY ROAD_ 1. ALL GRADING, BACKFILLING, EXCAVATION, ETC..., SHALL BE IN ACCORDANCE WITH THE 8. ALL CONSTRUCTION TRAFFIC SHALL ENTER AND EXIT THE SITE VIA THE CONSTRUCTION 11. ALL CUT AND FILL SLOPES AND CHANNEL SIDESLOPES WHICH ARE NOT TO BE PAVED, RECOMMENDATIONS SET FORTH IN THE GEOTECHNICAL INVESTIGATION REPORTS. ENTRANCES. SHALL BE SEEDED UNTIL A GOOD STAND OF GRASS IS OBTAINED IN ACCORDANCE WITH: REFER TO THESE REPORTS FOR ADDITIONAL INFORMATION NOT TRANSFERRED TO A. 100 LBS PER 11000 SQUARE FOOT GROUND LIMESTONE OR EQUIVALENT. NO SOIL THESE PLANS. 9. THE APPROXIMATE AREA OF THE LIMITS OF CLEARING, GRADING, AND CONSTRUCTION IS TEST REQUIRED FOR INITIAL ESTABLISHMENT. 31.23 ACRES. B. 20 LBS OF 10-10-10 FERTILIZER OR EQUIVALENT PER 1,000 SQUARE FOOT. 2. CONTRACTOR IS TO CONTACT NORTH CAROLINA "ONE CALL"AT 800-632-4949 FOR C. VARIETIES TO BE SEEDED: OLD MONROE-MARSHVILLE ROAD UNDERGROUND UTILITY LOCATION 48 HOURS PRIOR TO ANY DIGGING. 10. PURSUANT TO G.S. 113A-57(2), THE ANGLE FOR GRADED SLOPES AND FILLS SHALL 1. SPRING SEEDING - MARCH 1 - APRIL 30, SPRING OATS 2.5 LBS PER 1,000 SQUARE BE NO GREATER THAN THE ANGLE THAT CAN BE RETAINED BY VEGETATIVE COVER FOOT. 3. THE EROSION CONTROL MEASURES ARE TO BE IN PLACE PRIOR TO ANY EARTHWORK. OR OTHER ADEQUATE EROSION CONTROL DEVICES OR STRUCTURES. IN ANY 2. SUMMER SEEDING - MAY 1 - AUGUST 1; WEEPING LOVE GRASS AT 2 OZ. PER SITE EVENT, SLOPES LEFT EXPOSED WILL, WITHIN 14 CALENDAR DAYS OF COMPLETION SQUARE FOOT MIXED WITH 1 BUSHEL OF SAWDUST FOR UNIFORM SEEDING. m 4. ALL EROSION CONTROL MEASURES SHALL BE MAINTAINED UNTIL DISTURBED AREAS OF ANY PHASE OF GRADING, BE PLANTED OR OTHERWISE PROVIDED WITH 3. ASPHALT MULCH 6 GALLONS PER 1,000 SQUARE FOOT. ALL SEEDING WILL BE ARE STABILIZED. TEMPORARY OR PERMANENT GROUND COVER, DEVICES, OR STRUCTURES MULCHED. 7Z jl SUFFICIENT TO RESTRAIN EROSION. PURSUANT TO G.S. 113A-57(3), PROVISIONS FOR = v 5. ALL EROSION CONTROL FACILITIES SHALL BE INSPECTED AND REPAIRED AT A MINIMUM PERMANENT GROUND COVER SUFFICIENT TO RESTRAIN EROSION MUST BE 12. UNLESS OTHERWISE SPECIFIED ON THESE PLANS, ALL STORM DRAINAGE PIPES ARE TO OF WEEKLY BASIS AND AFTER EVERY RAIN EVENT. ACCOMPLISHED FOR ALL DISTURBED AREAS WITHIN 14 CALENDAR DAYS BE RCP CL. Ill. \ FOLLOWING COMPLETION OF CONSTRUCTION OR DEVELOPMENT. r� wZ ,I 6. ALL PAVED AREAS SHALL BE KEPT CLEAR OF EARTH MATERIALS AND DEBRIS. THE SITE 0 �O I I I SHALL BE MAINTAINED SO AS TO MINIMIZE SEDIMENT -LADEN RUNOFF. 00 00 vo 1 1 7. CONTRACTOR SHALL LOCATE AND VERIFY THE LOCATION OF ALL UTILITIES PRIOR TO a 1 1 1 BEGINNING CONSTRUCTION. , 0� ' ZQ II N M Q w Q� vWL'0� U � N/F 00, 601 1u w o MONROE BYPASS -HIGHWAY 601 LLC ET AL ,� �``, z ncoom z w D.B. 4079, PG. 62 0 0 �- VICIN/TY MAP 1 i 1 � 0 o o 1 0 a PARCEL ID: 09066001 0 v� Clio II NTS I _ U m / \ ZONED: RA-40 _ 0 03,-�00 00000 m Z II II CONSTRUCTION SEQUENCE: 1 \ /- _ / \ W z z W o W THE CONTRACTOR IS RESPONSIBLE FOR ENSURING THAT EROSION IS MINIMIZED AND THAT I : �� ♦ V \ COMPLIANCE WITH ALL APPLICABLE FEDERAL, STATE AND LOCAL LAWS, REGULATIONS AND ORDINANCES IS MAINTAINED THROUGHOUT THE EXECUTION OF THIS PROJECT. IN 1. OBTAIN NCDENR LAND DISTURBANCE PERMIT AND SCHEDULE A PRE CONSTRUCTION 1 11 I I : v--� APpR`oI, y • \ �v0 / ' \ m MEETING WITH NCDENR LAND QUALITY INSPECTOR. p\ w 2. INSTALL CONSTRUCTION ENTRANCE, AND WHEN COMPLETE, INSTALL THE PERIMETER I ' } " / S `REF TIpN \ 1 APpRp \ \ _ DITCHES. PROMPTLY LINE SILTFENCE. INSTALL TEMPORARY AND DI CHES AND SEED SLOPEI S, DAMS AND 1 ) �� '�� S ` = \' ' VERSIONO -1 CINCHES EE E �pCgTi ' DITCHES. UPON COMPLETION OF INSTALLATION, SEED, MULCH, AND ANCHOR EROSION K �pERENN q AND SEDIMENTATION CONTROL MEASURES. 3. BEGIN CLEARING AND ROUGH GRADING OF SITE. ALL EXCAVATIONS PERFORMED SHALL BE BACK FILLED WITHIN THE SAME DAY, WITH SOIL PLACEMENT ON UPSLOPE SIDE. \ /// � i/��.-- � � Ogg NOTE: CONTRACTOR SHALL INSPECT AND REPAIR ALL EROSION CONTROL DEVICES AT I 11!/ - I ` EARTH DAM LEAST ONCE A WEEK AND AFTER EVERY RAINFALL. GRADING ACTIVITY SHALL BE ` � _ O 5' TOP WIDTH PROHIBITED IN THE AREAS OF THE SEDIMENT CONTROL DEVICES/SKIMMER BASINS 1 / , I/ I \ \\ \ `` \ UNTIL THE AREAS UPSTREAM OF THESE DEVICES HAVE BEEN STABILIZED AND ( \ II I I ,„`- ` ` �� \\ 2:1 SIDESLOPES \ APPROVED. I \ N I / I /!h I /- \\ \` \ \ \x\� } - m _ n I 11( II/ /_ \ \ \ - - \\ rip•) 4. BEGIN FINISHED GRADING, FILLING, AND COMPACTION OF SITE. 1 / I 1 TEMPORARY SILT FENCE 0 1 II l CLASS A"RIP RAP APRON OVER 5. INVERTER PAD GRADING AND TRENCHING WILL HAVE TEMPORARY GROUND COVER AT I I f -S �- \ \ \ \ \ \ 3y(5 s ��' GRAVEL OUTLET (typ.), FILTER FABRIC (typ.), THE END OF EACH WORKDAY 1 I Ir' I III ! ( \ SEE DETAIL 5'L X 5'W X 14- THICK, 6. STABILIZE SITE AS AREAS ARE BROUGHT UP TO FINISHED GRADE WITH VEGETATION, �� �" ♦\ , �INSTALL AT ALL 4" PVC OUTLETS STONE BASE COURSE, ETC. ��46" i 7. AFTER ESTABLISHMENT OF PERMANENT VEGETATION AND APPROVAL FROM NCDENR c0 Tv-3 LAND QUALITY INSPECTOR, REMOVE SILT FENCE AND ANY REMAINING EROSION I I I \ \ I I l 1 1 / 1 I \ 1 \ , `t' \ \ \ \ T -� I I / \ �� `= „ CONTROL MEASURES. `, I III 11 � I I I S II III I 6�1 l_ TEMPORARY SEEDING IN NORTH CAROLINA C0 o I IIII +/ SEEDING MIXTURE Q:�- / I III I I SPECIES RATE lb/acre Q- A\ I I 1 ) -I- r T I \ �I l x - TEMPORARY SKIMMER AND J r r RYE (GRAIN) .` I I I I II _ / /7 / f / I I ! C E - \ } I I 1 (t 4" PVC @ 1.0% MIN., / ` TEMPORARY SKIMMER jo ANNUAL LESPEDEZA KOBE I �I /// / /// I \ �, f I I z - �=` ` -_-_= = ~ _ �^^ { / a SEE DETAIL _ SEDIMENT BASIN WITH COIR LATE WINTER & IN PIEDMONT AND COSTAL PLAIN, / V 1 I / //�/ / / / // ��'Qr ! I I "I { \ \ \ 1 1 I I I _ = i ` KOREAN IN MOUNTAINS \ I I I II I I j/ / // - O \ \ �� MESH BAFFLES (typ.), EARLY SPRING III II�,, I I/ f/ ///// // / I ( ( l \ \ r ` I I J/ / j N I I ! j I / f! / / `�- l \ _ \ . �l� ' -' - " ' " ~ = �19 ~ _ SEE DETAIL I OMIT ANNUAL LESPEDEZA WHEN DURATION OF TEMPORARY COVER rr t I / I I I / / I I \ \ \ ` \ ♦•'� ^ J I I / / / /// r • _ \ = _` ` \ ♦ I TOP OF CUT SLOPE ♦ i IS NOT TO EXTEND BEYOND JUNE. ` v r�rp•) \ k GERMAN MILLET SUMMER IN THE PIEDMONT AND MOUNTAINS, A SMALL -STEMMED " / pI I f / % I ( ! III J / I I ( I , \ \ \ \ I , �r f , 1 \� \ \ ( / \ 1� /Ill l)� / I I ! I 1 \ \ \ 11� <� \ \� EROSION CONTROL LEGEND ,. m -"-IIIIII� SILT FENCE OUTLET INLET PROTECTION SF� SILT FENCE TP� TREE PROTECTION FENCE DIVERSION DITCH I O LD LIMITS OF DISTURBANCE a � STORM PIPE Z U W CONSTRUCTION ENTRANCE j 0 Lu MAINTENANCE NOTES: IN GENERAL, ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CHECKED AND MAINTAINED DAILYAND AFTER EACH RAINFALL GREATER THAN 0.5 INCHES. ANY SEDIMENT THAT HAS BEEN TRANSPORTED BEYOND THE PROJECT LIMITS SHALL BE REMOVED. THE FOLLOWING ITEMS WILL BE CHECKED IN PARTICULAR: TEMPORARY CONSTRUCTION ENTRANCE. INSPECT CONSTRUCTION ROADS AND PARKING AREAS PERIODICALLY FOR CONDITION OF SURFACE. TOPDRESS WITH NEW GRAVEL AS NEEDED. CHECK ROAD DITCHES AND OTHER SEEDED AREAS FOR EROSION AND SEDIMENTATION AFTER RUNOFF -PRODUCING RAINS. MAINTAIN ALL VEGETATION IN A HEALTHY, VIGOROUS CONDITION. SEDIMENT PRODUCING AREAS SHOULD BE TREATED IMMEDIATELY. TEMPORARY SILT FENCE. INSPECT SEDIMENT FENCES AT LEAST ONCE A WEEK) AFTER EACH RAINFALL. MAKE ANY SO4.39'48" W o REQUIRED REPAIRS IMMEDIATELY. SHOULD THE FABRIC OF SEDIMENT FENCE COLLAPSE, TEAR, 263.88' �` DECOMPOSE, OR BECOME INEFFECTIVE, REPLACE IT IMMEDIATELY. REMOVE SEDIMENT DEPOSITS AS NECESSARY TO PROVIDE ADEQUATE STORAGE VOLUME FOR THE NEXT RAIN AND TO REDUCE PRESSURE ON THE FENCE. TAKE CARE TO AVOID UNDERMINING THE FENCE DURING CLEANOUT. 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 GRAVEL OUTLET: INSPECT SEDIMENT FENCE GRAVEL OUTLETS AT LEAST ONCE A WEEK AND AFTER EACH RAINFALL. MAKE ANY REQUIRED REPAIRS IMMEDIATELY. REMOVE SEDIMENT DEPOSITS AS NECESSARY TO PROVIDE ADEQUATE STORAGE VOLUME FOR THE NEXT RAIN. ANY RIP RAP DISPLACED MUST BE REPLACED IMMEDIATELY. TEMPORARY DIVERSIONS: \ \ INSPECT TEMPORARY DIVERSIONS ONCE A WEEK AND AFTER EVERY RAINFALL. IMMEDIATELY REMOVE SEDIMENT FROM THE FLOW AREA AND REPAIR THE DIVERSION RIDGE. CAREFULLY CHECK OUTLETS AND MAKE TIMELY REPAIRS AS NEEDED. WHEN THE AREA PROTECTED IS PERMANENTLY STABILIZED, REMOVE THE RIDGE AND THE CGHANNEL TO BLEND WITH THE NATURAL GROUND LEVEL AND APPROPRIATELY STABILIZE IT. TEMPORARY SKIMMER BASIN. - INSPECT TEMPORARY SKIMMER BASINS AT LEAST WEEKLYAND AFTER RAINFALL EVENTS 0.5 INCHES OR MORE. REMOVE SEDIMENT AND RESTORE THE BASIN TO ITS ORIGINAL DIMENSIONS WHEN THE SEDIMENT HAS ACCUMULATED TO ONE-HALF THE HEIGHT OF THE FIRST BAFFLE LIMITS OF (PLACE THE SEDIMENT THAT IS REMOVED IN THE DESIGNATED DISPOAL AREA). PULL THE DISTURBANCE (typ.) SKIMMER TO ONE SIDE SO THAT THE SEDIMENT UNDERNEATH IT CAN BE EXCAVATED. EXCAVATE THE SEDIMENT FROM THE ENTIRE BASIN, NOT JUST AROUND THE SKIMMER OR THE FIRST CELL. MAKE SURE VEGETATION GROWING IN THE BOTTOM OF THE BASIN DOES NOT HOLD DOWN THE TEMPORARY DIVERSION SKIMMER. BERM/DITCH (typ.), SEE DETAIL REPAIR THE BAFFLES IF THEY ARE DAMAGED. RE -ANCHOR THE BAFFLES IF THE WATER IS FLOWING UNDERNEATH OR AROUND THEM. TEMPORARY SILT IF THE SKIMMER IS CLOGGED WITH TRASH AND THERE IS WATER IN THE BASIN, USUALLY JERKING FENCE ON THE ROPE WILL MAKE THE SKIMMER BOB UP AND DOWN AND DISLODGE THE DEBRIS AND TAIL, SEE DETAIL SUNDAGRASS MAYBE SUBSTITUTED ATA RATE OF 50 LB/ACRE. I f / i ! I I J / I ! I III 1 I I I �\ Z l ' \ \ �'� 1 5 e 0 \ l \ \ \ \ \ \ \ \ \ Z� „h _ -egg -_ \ - -) I I p lb / / ! I i I i o f I \ \ '''% / / / lL\\ O11\\\ 1 I - - \\\ \ \ \ \ 1 a 1 � FALL RYE (GRAIN) 10 ♦ 4 1 \ \ \ `\ . 1 ) l \ \1 SEEDING DATES: 0 V7 0 /�// 7//rl/f fv g6fl 1 \ \ \ \ to MOUNTAINS -ABOVE 2500 ft.'FEB. 15 -MAY 15 //� //f, / m 1 \ \ \ , O� \ J \ \ \, \ \ ` \ 1 { \ \ \ \ } \ \ \ I I I I I I I I I l I I EARLY SPRING PIEDMONT - JAN. O MAY 1 ft. FEB. 1 -MAY 1 ! f 1 /`,t } I I l 1- COASTAL PLAIN -DEC. 1-APR. 15 1 1 \ I^, \ \ \ \ , I l vas / / 1 \ t MOUNTAINS - MAY 15 - AUG. 15 TEMPORARY , / /� �, / / / / / / / / \ , \ \ \ \ \ } ` \ SKy4 SUMMER PIEDMONT - MAY 1-AUG. 15 CONSTRUCTION / / 1 ♦� \ I ( I ) 1 �/ p c� 1 co I i i ' t I I ( I \ / i TRAFFIC / / / / / / / / f 1 t ` l \ °'' u \� t �" I \ 1 / S I E AS COASTAL PLAIN - APR. 15 - AUG. 15 C /\\, •.4�`0 // / / \ \ \ { I I I I ' \ \ O I I 1 I I I \ \ \ ./ { / MOUNTAINS - AUG. 15 - DEC. 15 BARRICADE i� // / / / / J \ \ \ \ r I \ \ \ `\, % �) I I I \ \ \ 1 / RAIN G ARLI ( ) FALL COASTAL PLAIN AND PIEDMONT - AUG. 15 - DEC.30 /� �\ \\\ ?c / / / / / W 1 \ \ ` \ \ ` ` ` \ \ r \� I I I I 1' I I I / / / / / / / / / �5� /, / / Q 1 \ \ \ \ �r, \ \ SDI ENT 8 SIN \ \ \ \ \ \ / \ \ I I {III \' \ i I' , \ \ / / / / / / , #4A EA EA r ) \ \ \ \ / ,- \ t \ \ \ \ 1 l 1 t \ \ / / J / / / /� / / / r r / x SOIL AMENDMENTS / --� I FOLLOW RECOMMENDATIONS OF SOIL TESTS OR APPLY Z000 LBS/ACRE GROUND \ \ I X I / / / 1 \ AGRICULTURAL LIMESTONE AND 750 LBS/ACRE 10-10-10 FERTILIZER / /\ \ 5 5 1 / / / / / j / f per\ \ \ \ \ \ \ , \ \ \ \ \ \ \ \ ✓ / , / / �" \ �3 \�\ 1 1 \ 1 t \ >r 1 l \ \ \ / / / / / / / / I MULCH / /lam \ I j / f/ / �/ / j / / / / ° �' \ \ \ \ \ \ 1 \ \ \ \ \ \ `` y�� / '� 1 ' 1 1 \ 1 l ` 1 t 1 \ / / / A!n G�`RES / / I X o I APPLY 4,000 LBS/ACRE STRAW. ANCHOR STRAW BY TACKING WITH ASPHALT, / p I A , I I j % / / / \ \ \ \ \ \ \ \ \ \ / \ �\ \ \ '' t { ` l \ \ 1 / / / / / / \ 565 \� M� NETTING OR A MULCH ANCHORING TOOL. A DISK WITH BLADES SET NEARLY / / I/ \ •I I / / / \ { 1 ` , \ \ 1 �p STRAIGHT CAN BE USED AS A MULCH ANCHORING TOOL f /� ( / > � ``� `• I t I I I f / / / i l 1 \ \ \ \ \ \ -_ \ f Tt�s \ � \ \ l 1 11 1 \ \ 1 / `' / < < < MAINTENANCE / y` GN \ `\I I ( I I I I 3" /A(fI'CC�J / 1 \ \ \\\\\\ \ \\\\ &2 \ \ \ \ \ 1 / \ \\ \ `1 1 \ \ 1 \ \ 1 / iIf \ \ \ \� REFERTILIZE IF GROWTH IS NOT FULLYADEQUATE. RESEED, `� ' . < I I I I / ' \ \ \ \ ` \ \ / \ \ \ 1 1 \ TEMPORARY GRAVEL L REFERTILIZE AND MULCH IMMEDIATELYFOLLOWING EROSION I \ ` I I I / 1 \ \ \ \ \ \ \ \ \ \ \ \ \ / / \ \ \ / \ \ v-' �� \ \ Z m \ '� I I I ( \ \ Rf+ ` ,TEMPORARY ENTRANCE � � \ RESTORE FLOW. IF THIS DOES NOT WORK, PULL THE SKIMMER OVER TO THE SIDE OF THE BASIN AND REMOVE THE DEBRIS. ALSO CHECK THE ORIFICE INSIDE THE SKIMMER TO SEE IF IT IS CLOGGED, IF SO, REMOVE THE DEBRIS. IF THE SKIMMER ARM OR BARREL PIPE IS CLOGGED, THE ORIFICE CAN BE REMOVED AND THE OBSTRUCTION CLEARED WITH A PLUMBER'S SNAKE OR BY FLUSHING WITH WATER. BE SURE AND REPLACE THE ORIFICE BEFORE REPOSITIONING THE SKIMMER. o oo CHECK THE FABRIC LINED SPILLWAY FOR DAMAGE AND MAKE ANY REQUIRD REPAIRS WITH FABRIC THAT SPANS THE FULL WIDTH OF THE SPILLWAY. CHECK THE EMBANKMENT, SPILLWAYS, 100 AND OUTLET FOR EROSION DAMAGE, AND INSPECT THE EMBANKMENT FOR PIPING AND z SETTLEMENT. MAKE ALL NECESSARY REPAIRS IMMEDIATELY. REMOVE ALL TRASH AND OTHE M 0- DEBRIS FROM THE SKIMMER AND POOL AREAS. TEMPORARY COIR MESH BAFFLES Q wofu v w INSPECT BAFFLES AT LEAST ONCE A WEEK AFTER EACH RAINFALL. MAKE ANY REQUIRED vi M REPAIRS IMMEDIATELY. W CL o 00 F z O M 0 � � ALL BAFFLES SHALL BE SECURELY BURIED INTO SIDESLOPES OF BASIN. O0 cror?w II o r'n O w O BE SURE TO MAINTAIN ACCESS TO BAFFLES. SHOULD THE FABRIC OF A BAFFLE COLLAPSE, TEAR, 0 w M DECOMPOSE, OR BECOME INEFFECTIVE, REPLACE IT PROMPTLY. � U 4 > m Z Lj it II m W REMOVE SEDIMENT DEPOSITS WHEN IT REACHES HALF FULL TO PROVIDE ADEQUATE STORAGE w z z w 00 w VOLUME FOR THE NEXT RAIN AND TO REDUCE PRESSURE ON THE BAFFLES. TAKE CARE TO AVOID DAMAGING THE BAFFLES DURING CLEANOUT. SEDIMENT DEPTH SHOULD NEVER EXCEED HALF THE DESIGNED STORAGE DEPTH. OR OTHER DAMAGE. I I / / ^ \ '� \ \ \ sys 11 I i I j I I / ` j \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ �S, / / \ ! \ \\ I I S SEE DETAIL { �p \ ma`s {s� \ \ \ \ AFTER THE CONTRIBUTING DRAINAGE AREA HAS BEEN PROPERLY STABILIZED, REMOVE ALL \ \ ems'\ BAFFLE MATERIALS AND UNSTABLE SEDIMENT DEPOSITS, BRING THE AREA TO GRADE, AND I� J STABILIZE IT. i �\ 1\t I I { I 1 \ \ \ \ \ \ \ \ s \ I I I I I I I / PERMANENT DRIVE \ \ � .1� ` 1 ENTRANCE, SEE DETAIL � / I -.,.. -- '\. � �. o�'s \� -- = � f ` t � ' 1 / / / 1 1 1 \ \ \ \ \ \\ \ \ \ \ \ \ �� �'\ � / \ \ \ \ \ ��\\ �1„11 t � 1 I I 1) I l / / ��� _ �.% �•�"=-- �- - / � --� � � �. ► I � � , � , \ � / 1 \ \ \ �� \/ / , � 1 ! a I, 1, I L- � - / TEMPORARY GRAVEL \ \ \ \ • v 1 \ CONSTRUCTION ENTRANCE, / / \ \ \ \ - N/F ; , • { I I ! 0 \ \ \ C\ \ ` SEE DETAIL �\ `/�\ Gv ROCK REST COMMUNITY CENTER \ \ \ \ 6 I I I / / \ \ \ \ \ \ / / / \ \ \ IL - _ ®a@varaaaaeaaatrr����� -- I I I I \ \ \ 1 \ ram, /W /'/f �� .......•. / D.B. 93, PG.' 450 • DO NOT DISTURB i w 1 \ ` , 1 \ `�s' \ / c-- �� /// i _ _ �.�®� Gii�� 1;;� 'l" •. WETLANDS L• / I WETLANDS 1 t PERMANENT DRIVE { - - �� ►� �I__ f _ ,J m� h O p� , ° CAR() rs� I r / /' /�� / PARCEL ID: 09090006 ` \ r ' I / � 1 1 � ENTRANCE, SEE DETAIL � � \ s to D � � • / ZONED: RA-140 1 \ � 1 I� I I I I I l / I i \ \ l 1 \ ` \ �--- _ �\. -I --= R0 A _ - - umj -Q2= -ID _� - _ M a 26493 t Lu �o rt \ - •� �" _- - - 1�1 so (1 ''•^�T4. �'`�+`�a.:C +ate • - \j ,t'' �' . `� • � .�_ _ l I - -f S J l - 1- - l- _ - - p p,GE.1. ,� ��®®,�®••'`.0 ,e�s����•�� F,p4•.i�/C7I\v�° '�� \ 1 \ I ► I I _ __ 4 �p� .. �. \ \ \ \ \\'• _i_� I�--� - - - _ = - 01-0 1 g _ A� �����$ �b�$aaatoxa�4�°�• ��fj a®1 clf- OF - �- =-- --- --- - of c RIG �---� \ 1,BL1C -- -'- - -- -- J r -ems _ --- --- --- iLu �' ---- ----cr z1W 60 '7 W Q O SKIMMER SEDIMENT BASIN DESIGN SKIMMER SEDIMENT BASIN DESIGN 1 SKIMMER SEDIMENT BASIN EFFICIENCY SKIMMER BASIN NUMBER DISTURBED DRAINAGE AREA DISTURBED DRAINAGE AREA REQUIRED VOLUME (1800 CF/AC) DEPTH** (2 FT. MIN.) WIDTH* LENGTH* VOLUME PROVIDED RUNOFF COEFFICIENT RAINFALL INTENSITY FLOW Q10 REQUIRED SURFACE AREA (325 SF/CFS) AREA PROVIDED SIZE*** ORIFICE DIAMETER TOP OF DAM ELEV. 10-YR W.S.E. FREEBOARD SPILLWAY ELEV. FLOOR ELEV. SPILLWAY WIDTH DAM TOP WIDTH (SF) (AC) (CF) (FT) (FT) { (FT) (CF) (IN/HR) (CFS) (SF) (SF) (IN) (IN) (FT) (FT.) (FT.) (FT.) (FT.) (FT.) (FT.) SK-1 174,240 4.0 7,200 2.0 35 120 8,400 0.40 7.80 12.5 4,063 4,200 2.0 1.8 568.5 567.4 1.1 567.0 565.0 15 5.0 SK-2 139,392 3.2 5,760 2.0 30 110 6,600 0.40 7.80 10.0 3,250 3,300 2.0 1.6 55&0 556.9 1.1 556.5 554.5 12 5.0 SK-3 196,020 4.5 8,100 2.0 40 120 9,600 0.40 7.80 14.1 4,582 4,800 2.0 1.9 558.0 556.9 1.1 556.5 554.5 18 5.0 SK-4 357,192 8.2 14,760 2.0 50 1 170 17,000 0.40 7.80 25.6 8,320 8,500 2.5 2.4 562.5 561.4 1.1 561.0 559.0 30 5.0 SK-5 261,360 6.0 10,800 2.0 40 1 160 12,800 0.40 7.80 18.7 6,077 6,400 2.5 2.1 555.5 554.4 1.1 554.0 552.0 25 5.0 SK-6 130,680 3.0 5,400 2.0 30 1 105 6,300 0.40 7.80 9.4 3,055 3,150 2.0 1.5 566.5 565.4 1.1 565.0 563.0 12 5.0 *SKIMMER BASIN DIMENSIONS REPRESENT BOTTOM DIMENSIONS AND ARE MINIMUMS WHICH CAN BE EXCEEDED. **DEPTH BELOW EMERGENCY SPILLWAY ***SKIMMER SIZED PER SIZING CALCULATOR AT WWW.FAIRCLOTHSKIMMER.COM AT DRAWDOWN RATE OF 72 HOURS. PROVIDE 7-DAY GROUND STABILIZATION FOR TEMPORARY DIVERSION DITCHES AND INTERIOR SLOPES OF SKIMMER BASIL. GRID (XAD as) GRAPHIC SCALE 100 0 50 100 200 1 inch = 100 ft. TEMPORARY DIVERSION BERM DITCH LINER CALCULATIONS C I(10) A Q(10) TEMPORARY RUNOFF 10-YR DRAINAGE FLOW BASE LEFT RIGHT CHANNEL CHANNEL FLOW FREEBOARD SHEAR VELOCITY MANNINGS TEMPORARY DIVERSION COEF. RAINFALL AREA WIDTH SIDESLOPE SIDESLOPE DEPTH SLOPE DEPTH STRESS "n" LINER DITCH NAME INTENSITY i (IN/HR) (ACRES) (CFS) (FT) (FT) (FT/FT) (FT) (FT) (LB/SF) (FT/SEC) j i TD-1 0.40 7.80 0.5 1.56 2.0 2:1 2:1 1.5 0.03 0.2 1.3 0.4 4.3 0.018 STRAW BLANKET TD-2 0.40 7.80 1.0 3.12 2.0 2:1 2:1 1.5 0.01 0.4 1.1 0.2 3.6 0.018 STRAW BLANKET TD-3 0.40 7.80 1.0 3.12 2.0 1 2:1 2:1 1.5 0.01 0.4 1.1 0.2 3.7 0.018 STRAW BLANKET TD-4 0.40 7.80 1.0 3.12 2.0 2:1 2:1 1.5 0.01 0.4 1.1 0.2 3.7 ! 0.018 STRAW BLANKET TD-5 0.40 7.80 4.0 12.48 2.0 2:1 2:1 1.5 0.02 0.6 0.9 0.8 6.5 0.018 STRAW BLANKET TD-6 0.40 7.80 0.5 1.56 2.0 2:1 2:1 1.5 0.01 0.3 1.2 0.2 3.1 0.018 STRAW BLANKET TD-7 0.40 7.80 0.5 1.56 2.0 2:1 2:1 1.5 0.01 0.3 1.2 0.2 3.1 0.018 STRAW BLANKET TD-8 0.40 7.80 2.0 6.24 2.0 2:1 2:1 1.5 0.01 0.5 1.0 0.3 4.1 0.018 STRAW BLANKET TD-9 1 0.40 7.80 0.5 1.56 2.0 2:1 2:1 1.5 0.03 0.2 1.3 0.4 4.3 0.018 STRAW BLANKET TD-10 0.40 7.80 2.0 6.24 2.0 2:1 2:1 1.5 0.03 0.4 1.1 0.7 6.3 0.018 STRAW BLANKET *TEMPORARY STRAW WITH NET LINER TO BE NORTH AMERICAN GREEN C125BN EROSION CONTROL BLANKET OR APPROVED EQUIVALENT. �I 0 z� c O �1 uj � ca Z W W U cy) � � F_ - `-C C/) O o Z M UDC c') I" Z WWQW W �_IX oo z Z %-8O�QO J O LL Q J J cco Q CL LLJ J C)O cr,Z O C) zozz o O oWoz Z � 'z O LLi O V O � � J O BY.• NO. CCR-1504 CCR1504-ECP STH 0313112015 C-4 I 6' MAX- WITHOUT WIRE 8'MAX. WITH WIRE STEEL FENCE POST a Practice Standards and Specifications VARIABLE AS DIRECTED BY THE ENGINEER iWIRE FENCE � m HARDWARE CLOTH Construction 1. Clear, grub, and strip the area under the embankment of all vegetation and root mat. Remove all surface soil containing high amounts of organic matter 9. Erosion control —Construct the structure so that the disturbed area is Specifications and stockpile or dispose of it properly. Haul all objectionable material to the minimized. Divert surface water away from bare areas. Complete the -' before the area is cleared. Stabilize the emergency it MIN. 12-1/2 GA. � designated disposal area. Place temporary sediment control measures below embankmentgency spillway INTERMEDIATE FILTER OF 1" DIA. WASHED STONE basin as needed embankment and all other disturbed areas above the crest of the principal MIN. 10 GA. WIRES FILTER FABRIC iv � spillway immediately after construction (References: Surface Stabilization). LINE WIRES SIL7 EEY2 7 FARR ON GROUND 2. Ensure that fill material for the embankment is free of roots, woodyys ws LLEL TO SE 3OND vegetation, organic matter, and other objectionable material. Place the fill in 10. Install porous baffles as specified in Practice 6.65, Porous Baffles, wIR FRO I TOP lifts motto exceed 9 inches, and machine compact it. Over fill the embankment Z 11. After all the sediment -producing areas have been permanently stabilized,' ' O 6 inches to allow for settlement. P g P Y remove the structure and all the unstable sediment. Smooth the area to GRADE 3. Shape the basin to the specified dimensions, Prevent the skimmingdevice -*, Z blend with the adjoining areas and stabilize properly (References: Surface Inlet 3 , ` � f�:x:Cutlet CIO SECTION BURY WIRE FENCE AND from settling into the mud by excavating a shallow pit under the skimmer or Stabilization). O U HARDWARE CLOTH providing a low support under the skimmer of stone or timber.COO ,7 CO W 4. Place the barrel (typically 4-inch Schedule 46 PVC pipe) on a firm, smooth Q foundation of impervious soil. Do not use pervious material such as sand, Maintenance Inspect skimmer sediment basins at least weekly and after each significant ,. gravel, or crushed stone as backfill around the pipe. Place the fill material (one-half inch or greater) rainfall event and repair immediately. Remove `_ w around the pipe spillway in 4-inch layers and sediment and compact it under and around restore the basin to its original dim P P sP a9dimensions w Yhen sediment ' P FILTER OF 1 DIA. the pipe to at least the same density as the adjacent embankment. Care must accumulates to one-half the height of the first baffle. Pull the skimmer to FRONT VIEW WASHED STONE be taken not to raise the pipe from the firm contact with its foundation when one side so that the sediment underneath it can be excavated. Excavate the NOTE.' compacting under the pipe haunches. sediment from the entire basin, not just around the skimmer or the first cell. Place a minimum depth of 2 feet of compacted backfill over the pipe spillway Make sure vegetation growing in the bottom of the basin does not hold down Figure 6.65a Porous baffles in a sediment basin. The flow is distributed evenly I across the basin to reduce DOES NOT EXCEED • W -USE SILT FENCE ONLY WHEN ORAINAGEARE STEEL POST P P before crossing it with construction equipment. In no case should the pipe the Skimmer. flow rates and turbulence, resulting in greater sediment retention. AREAS OF CONCENTRR ACRE AND NEVER IN conduit be installed by cutting a trench through the dam after the embankment�ATED FLOW WOVEN WIRE FABRIC SILT FENCE FABRIC Repair the Q baffles ' tf the are - damaged. is con Re anchor fete. the baffl es if wate r is P Baffles need to Y in P $ be install ed correctly e 1 in order full provide Y their YP etr benefits. • flowing und erneath Refer t or around Them. r o Fig ure ur 6.65 b and the following o ui 8 ke oft 5.g Y n s. Assemble theP skimmer fol lowing the manuf • FOR manufacturers ' REPAIR OF IL instructions, SILT g one, or as T FENCE FAILURES USE 3' •-•' designed, The battle material needs to be secu red ured t the bottom and sides rein ti F If o ILL SLOPE the skimmer is clogged with trash and g there is water in the basin u . � usually No 5 WASHED O S STONE. gg : Y st aples 1 es or b tren ching as for i s It fenc e. ce. ib 6. La e Y g 3 FOR the assembled ' ANCHOR WHEN I N SILT skimmer on T the bot tom of the basin with jerkin o Y the flexible n the 1 rope wil l make the skim mer bob u and down an d dislodge O r jerking e FENCE IS PROTECTING Pe P g 2 TNG join t nt at the i SILT FENCE inlet of the Most barrel i of the . Ali sediment Attach the flexible meet w' - ble joint �11 a Z to the cc J barrel i umul the ate in t e debris he t pipe. s and r firs restore flow. ba J If this d so this does not work, s pipe pull the skimmer v should be e' r over to > k, Y CATCH' BASIN. P � �"� �• . GRADE • • • ••• ••. • • • •a •. and position the skimmer over the excavated pit or support. Be sure to attach the side of the basin and remove the debris. Also check the orifice inside the readily accessible for maintenance. END OF a rope to the skimmer and anchor it to the side of the basin. This will be used skimmer to see if it is clogged; if so remove the debris. PLAN VIEW FILTER FABRIC to pull the skimmer to the side for maintenance. sP' y spillway in undisturbed soil to the greatest If the skimmer arm or barrel pipe is clogged, the orifice can be removed and Support rope Support post, a"MIN. COVER 7. Earthen tllwa s—Install the tllw NOVER SKIRT • extent possible. The achievement of planned elevations, grade, design width, the obstruction cleared with a plumber's snake or by flushing with water. Be to wire to pre- 24"into bottom vent sagging or side Stake to support ANCHOR SKIRT AS 4' MIN. and entrance and exit channel slopes are critical to the successful operation sure and replace the orifice before repositioning the skimmer. wire DIRECTED BY ENGINEER' of the spillway. The spillway should be lined with laminated plastic or impermeable geotextile fabric. The fabric must be wide and long enough to Check the fabric lined spillway for damage and make any required repairs cover the bottom and sides and extend onto the top of the dam for anchoring with fabric That spans the full width of the spillway. Check the embankment, Q MAINTENANCE.' SIDE VIEW in a trench. The edges may be secured with 8-inch staples or pins. The fabric spillways, and outlet for erosion damage, and inspect the embankment for {V� must be longenough to extend down the sloe and exit onto stable piping and settlement. Make all noes Z P ground p p g sary repairs immediately. Remove all INSPECT SEDIMENT FENCES AT LEAST ONCE A WEEK AND AFTER EACH RAINFALL. MAKE ANY The width of the fabric must be one piece, not joined or spliced, otherwise trash and other debris from the skimmer and I areas. E x ^ — REQUIRED REPAIRS IMMEDIATELY. SHOULD THE FABRIC OF A SEDIMENT FENCE COLLAPSE, TEAR, TOP OF SILT FENCE J' `� F°O o. MUST BE AT LEAST water can get under the fabric. If the length of the fabric is insufficient for the O tit DECOMPOSE, OR BECOME INEFFECTIVE, REPLACE IT IMMEDIATELY. REMOVE SEDIMENT DEPOSITS AS 1' ABOVE THE TOP entire ten of the illwa multi le section spanning the complete width, Freezing weather can result in ice forming in the basin. Some special Coir mesh or similar, stapled or �� W $� spillway, P P g P P� NECESSARY TO PROVIDE ADEQUATE STORAGE VOLUME FOR THE NEXT RAIN AND TO REDUCE OF THE WASHED A M,may he used The upper sections) should overlap the lower section(s) so precautions should be taken in the winter to prevent the skimmer from trenched into bottom or side PRESSURE ON THE FENCE. REMOVE SEDIMENT WHEN IT REACHES 1/2 HEIGHT OF THE FENCE. TAKE STONE that water cannot flow under the fabric. Secure the upper edge and sides plugging with ice. � ((,, ( U. CARE TO AVOID UNDERMINING THE FENCE DURING CLEANOUT. REMOVE ALL FENCING MATERIALS AND of the fabric in a trench with staples or pins. (Adapted from "A Manual for ii•iV W UNSTABLE SEDIMENT DEPOSITS AND BRING THE AREA TO GRADE AND STABILIZE IT AFTER THE Designing, Installing and Maintaining Skimmer Sediment Basins." Fe ® C CONTRIBUTING DRAINAGE AREA HAS BEEN PROPERLY STABILIZED. 1999. J. W. Faircloth & Son.). bnany, flows through the affle mtaterial porous baffle in a sediment basin. Note that there is no weir because the water 8. Inlets —Discharge water into the basin in a manner to prevent erosion. Use STANDARD TEMPORARY SILT FENCE STEEL FENCE POST temporary slope drains or diversions with outlet protection to divert sediment- SET MAX. 2' APART aAND laden water to the upper end of the pool area to improve basin trap efficiency 6.65.2 /gl\ v BURY WIRE FENCE, FILTER (References: Runoff Control Measures and Outlet Protection). Bev. 6ro6 FRONT VIEW CLOTH IN TRENCH HARDWARE ) MAINTENANCE TEMPORARY COIR MESH BAFFLE'DETAIL NOTES: I. THE STRUCTURE SHALL BE INSPECTED AFTER EACH RAINFALL AND REPAIRS MADE AS NEEDED. _ _ (N. T. S.) 1. PUT SILT FENCE OR TREE PROTECT ION FENCE UP 2. SEDIMENT SHALL BE REMOVED AND THE TRAP RESTORED TO ITS ORIGINAL DIMENSIONS WHEN TEMPORARY SKIMMER BASIN CONSTRUCTION AND MAINTENANCE Arm Assembly TO ENSURE CONSTRUCTION ENTRANCE IS USED. THE SEDIMENT HAS ACCUMULATED TO ONE-HALF THE DESIGN DEPTH OF THE TRAP. REMOVED SEDIMENT SHALL BE DEPOSITED IN A SUITABLE AREA AND IN SUCH A MANNER THAT IT WILL NOT 2. IF CONSTRUCTION ON THE SITES ARE SUCH HAT ERODE. THE MUD IS NOT REMOVED BY THE VEHICLE TRAVEL- 3. STRUCTURE SHALL BE REMOVED AND THE AREA STABILIZED WHEN THE REMAINING DRAINAGE ING OVER THE STONE, THEN THE TIRES OF THE AREA HAS BEEN PROPERLY STABILIZED. "C" Enclosure Z Q = VEHICLES MUST BE WASHED BEFORE ENTERING THE 4. INSPECT SEDIMENT FENCES AT LEAST ONCE A WEEK AND AFTER EACH RAINFALL. MAKE ANY Q = PUBLIC ROAD. �' REQUIRED REPAIRS IMMEDIATELY. SHOULD THE FABRIC OF A SEDIMENT FENCE COLLAPSE, TEAR, % O 0 DECOMPOSE, OR BECOME INEFFECTIVE, REPLACE IT IMMEDIATELY, REMOVE SEDIMENT DEPOSITS Water Entry = AS NECESSARY TO PROVIDE ADEQUATE STORAGE VOLUME FOR THE NEXT RAIN AND TO REDUCE PERSPECTIVE VIEW Unit l _ 70' MIN. PRESSURE ON THE FENCE. REMOVE SEDIMENT WHEN IT REACHES 112 HEIGHT OF THE FENCE. 0O TAKE CARE TO AVOID UNDERMINING THE FENCE DURING CLEANOUT. REMOVE ALL FENCING en BUT SUFFICIENT TO KEEP MATERIALS AND UNSTABLE SEDIMENT DEPOSITS AND BRING THE AREA TO GRADE AND STABILIZE PVC End PVC VtCap PVC Elbow pipe Schedule 40 ® Z SEDIMENT ON SITE IT AFTER THE CONTRIBUTING DRAINAGE AREA HAS BEEN PROPERLY STABILIZED. PVC Pipe UJ _ TEMPORARY SILT FENCE GRAVEL OUTLET Water Surface ..2"-3" STONE TO BE USED.`•,:.'.' :: ' ::; ' li T. S.) PVC End EXISTING 25 OR WIDTH OF �� `; (SURGE STONE OR RAILROAD ;•'' PROPOSED STREET, 7 Cap ROADWAY :.> t: �' "' BALLAST) WHICHEVER IS Schedule 40 >: •<• GREATER. PVC Pipe PVC Pipe ,? ,•., ' 2- MIN. PVC Tee 2 I PVC Tee Orifice "Hoes in Underside Flexible Plate Hose PLAN STEEP CUT OR FILL SLOPE ------------- --- 18" O O P Bottom Surface N NEWCONSTRUCTION 2 : 1 SLOPE (MAXIMUM) END VIEW FRONT VIEW co W Q EXISTING ROADWAY 35' MIN. 15' MIN. -STABILIZE DIVERSION DITCH WITH JTEMPORARY I Z .. •• CROSS SECTION CONTROLNIETTINGNG AND EROSION 0 2 MI - - - - - - - - - - Z W 1 N. 6" MIN. °�: e° . ' . ' ' :.:..:,..;..:.:::' . ' .: ' :: J.:'` :.::'. ;..:,>: •::'. `'::.: `:.'•..t:" --y." •;, •:00 W W U M UPSLOPE TOE POSITIVE GRADE (1.096 MINIMUM) TEMPORARY SKIMMER DETAILI.M O 2' MINIMUM (N.T.S.)-4��w Y p FABRIC UNDER STONE SIDE SLOPES W Z t� 2: 1 (MAXIMUM) W Q Z CROSS SECTION ' ���� ���� �� ��� ���� ��� ��� ��� U p ���� �1�� ���� �� ���� ���� ��� O TEMPORARY GRAVEL CONSTRUCTION ENTRANCE "I 0. . wwQmw �_ NOTES: j STEEP CUT OR FILL SLOPE Q10 = 1. TIEBACK ALLOTHER GRADED SLOPES AT 3:1 MAXIMUM. U U co tq U a 2. SEED AND LINE ALL SLOPES AND DITCHES WITH JUTE PLAN VIEW NETTING FOR ANY DISTURBED AREAS. MAINTENANCE: EXISTING DITCH 50' MIN. INSPECT TEMPORARY DIVERSIONS ONCE A WEEK AND AFTER EVERY Q (typ•) 10'R PROVIDE 5' MINIMUM GRASS ? RAINFALL. IMMEDIATELY REMOVE SEDIMENT FROM THE FLOW AREA AND CK SHOULDER AT 8% MAXIMUM SLOPE. REPAIR THE DIVERSION RIDGE CAREFULLY CHECK OUTLETS AND MAKE : Plan ViewUz TIMELY REPAIRS AS NEEDED. WHEN THE AREA PROTECTED IS PERMANENTLY ` STABILIZED, REMOVE THE RIDGE AND THE CHANNEL TO BLEND WITH THE Q •: ' .< •,.,. ,:,:I •• -•F : • ;: "'.; i NATURAL GROUND LEVEL AND APPROPRIATELY STABILIZE IT. J ! ,':: ':: •: " TH 20' OR WIDTH OF +. W • 6 /CK (MIN.) #57 OR `.:.::: •; :,:.. �� k6"'`• ° PROPOSED GRAVEL ROAD, #s7�sTONE WHICHEVER is GREATER. TEMPORARY DIVERSION DITCH O (� Inflow (%) structure INSTALL 15" RCP @ 0.50% MINIMUM SLOPE W WITH TYPE I BEDDING PER NCDOT STD. , '' E O O O 310.10 (PROVIDE 30" MINIMUM COVER FOR PROVIDE 5' MINIMUM Z Table 6.11 h w J Z CLASS III RCP, OTHERWISE USE CLASS IV 10'R GRASS SHOULDER AT 8% g Seeding No. 6M for: Gentle Seeding mixture as r _ "' RCP). TAIL DITCH TO DAYLIGHT AT 0.50% MAXIMUM SLOPE "' S"s, Sun or Semii-shade; Specieet Rate (Ib/aere) s 4 z Q MINIMUM SLOPE. High -maintenance, Tall fescue blend (equal parts ofBaffle O Z C( Minlmum-care Lawns two or preferably three turf -type O INSTALL 101 X 6'WX 22" THICK RIP RAP tall fescuel 200-250 APRON AT DOWNSTREAM END OF PIPE LU (UNDERLAYAPRONWITHFILTER FABRIC) l PLAN f l ,.��o is 3 �I � � � � � � � ' 1J'1,, U Q 1 : x ` I `� _� �T� �, � � � Emergency W 1 Earthen t z Se eding 1 date s eta g Embankment _ '� spillway Bean Poss�le I -- I Aiiti a ,.� ,� i i Sept. i Below 2July B ow 500 ft: Aug.Au .15 Sept.S . 1 tip - _ Average * '�� !T t yam r e ��.. _ Area S m m fl Mar. i IiIE 41li�ll'�l Mar. 1 .1 .1 10 � �� �'i 9 1 Width W .� °,c GSA' Above 2500 ft: July 2 5 July 15 -Aug. . C s �N PROPOSED GRAVEL ROAD ti 5 -Aug ly g. 30 4 .• 't NEW r. ® �. W CONSTRUCTION Mar. 20 - 20 Mar. 5 - May 15 EXISTING ROADWAY $0' MIN. air Area of basin water surface at O oa ,, o c n - JPC Sail amendments top of principal spillway elevation Baffles r„} Y;� P-Ot36 v z O � lime and fertilizer according to soil tests or 4 000 Ib/acre =- - a ��� �`��''e ��� Af+PIY n9 aPPti � - 14 l'°'�.,,� a,.. �j• 0® 2% SLOPE t 2% - 5% SLOPE ground agricultural limestone and 1,200 Ib✓acxe 10-10-10 fertilizer. �Po®``<C •,Ty, r P � :..• is •.ry.••;• a..:•• '_` Outlet;Class ®t•'iP' yOR1HS�®` i q :4 • ; . t :.:� : 6" MIN. % I ri ra 35%onl� Tare face area ®��88Oniiii!ltlt��� MuICh f t Apply 3,000-4A000 Ib/acre grain straw or equivalent cover of another Inflow Baffles T Freeboard Embankment COMPACT TOP 12" OF 30 MIN. CLASS Ill RCP SUBGRADE TO 95% 12" MIN. CLASS IV RCP suitable mulch. Anchor mulch by tacking with asphalt, roving, or nettingor structure / �s¢ Iwo F[rsfChamber `-�e�,, O STD. PROCTOR (typ.). ( ) FABRIC UNDER STONE : •_ �••� "�/ ++r. by rolling and watering. 25%of surface area I b + 6" (min.) #57 OR #67 ♦ ,q� • ' ":• ; Y' ' • PROJECT NO. Maintenance Seeotid.Ghnmber a:, •• CCR-1504 WASHED STONE �' 25%of surface area watering ,� .: 15"RCP The bunch -type habit of tail fescue restricts its spread into damaged areas. zone 6" min. invert elevation of ; • HR. 91?�1�L`.'i !; FILENAME: CCR1504-DTL 1 Reseed bare spots in the fall Refertilize annually in fate winter and again outletzane . emergency spillway 2 in fall. Reseed fertilize and mulch damaged areas immediately. t°9 «f �urfaareit .. , !t DRAWN ev Filter fabric O CROSS SECTION ' ' p n y �A ,`? 1. ° ; SCALE: STH 9 Refer to Appendix &02for botanical names r .. N. T,S. TYPICAL PERMANENT DRIVE ENTRANCE DETAIL Sediment Cross -Section +�**•,;t i• � �°� : ' DATE. Figure 6.69e Example of porous baffle using sit fence with'siits cut n each attema storage Zone easaaa s•,�� 03/31/2015 hog space of wire backing fence. (City of High Point, NC detail.) View (n.t. s.) PERMANENT SEEDING SCHEDULE TEMPORARY SKIMMER BASIN BAFFLE PLACEMENT TEMPORARY SKIMMER SEDIMENT BASIN SHEET NO. (N. T. SJ C-5 (N. T. S.)