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Home My WebLink About20121049 Ver 1_Grading and Drainage Plans_20130114lizz-061pWarem REVISIONS DATE I BY I DESCRIPTION LOCATI 0 N MAP . . . . . . . . . . § RE L I A K T 1�4"' J I N fvi '" +�r. lfl 10+9 R JAI� .1 �AAAPTI PIEDMONT TRIAD AIRPORT AU-HORITY PIEDMONT TRIAD AIRPORT AUTHORITY 1000A Ted Johnson Parkway Greensboro, NC 27409 OFC: (336) 665-5600 FAX: (336) 665-5694 www.flyfrompti.com DCT DCT DESIGNED DRAWN I IA CHECKED S.O. DATE: JANUARY 2013 SCALE: AS SHOWN SHEET rii Wl OF G3 77 77� 7777 ONUMENTS AND BENCHMARKS N POND, WAI-ER V MONUMENT I.D. NORTHING FASTING ELEVATION DESCRIPTION GPS-4- 856861.15 1728400.644 835.458 1/2" solid iron rod set 7' off south edge of Ballinger Rd. SBM-11, 857403.61 1728039.205 859.66 Magnetic nail set in existing concrete 2utter an REVISIONS I m Iron, m- ".1, I.D. STATION NORTHING EASTING ARC R =150' PC 12+46.52 1728291.796 857451.7432 D = 32000'59.296' Cl PT 13+30.34 1728374.502 857453.8580 L 83.82' T 43.04' R =150' PC 16+96.15 1728728,595 857361.9961 D = 35*08*42.426" C2 PT 17+88.16 1728819-042 857366.7821 L = 92.01' T = 47.50' yr v- t A& SHEET TA 8381— 1 L IrT L SCALE IN FEET !J\tv 6c" cmp (W) 72 INV 66" CMP (c OF EASTERN: 66" CMP 803.33 HORIZONTAL &- VERTICAL DATUM I �01� TOP OF METAL PLAI.� PARTIAUY OVER END OF GL-1 r WORK AREA I 50 25 0 50 SCALE IN FEET Q� S Olt AENT ASIN/DRY DETENTION BASIN C E 0 YR . Q ='3.87 cfs _1114- D.A. 1117 D. 1"5 Ac B 1 SEDIMENT TRAPJ DISTUfRbEb AREA=0.9 Ac. =3.04 cfs REQ'D STORAGE VOLUM,E=3,240 CF DES D A.=1,45 Ac., IQ YR Q DISTURBED ARE SEDIMENT V� 36" Rcp I/C /846 84 -A=0.4 Ac�' ti REQ'D STO E VOLUME =1,440 CF N STORAGE VOLUME=24,610.9 CF, SURFACE Af $41,41 - bRA RECD �EA=l 683.45 SF _$EQUENT"', 2 14 841.35 It �, STOF3A'G VOLU 7E btSION E: .ME=2,89242 CF _.io DESIGN 7,701 SF rRAP8\ "q. -2 D REQ'D TRAP DIMENSIONS=1;50� L k,,35 W x 4' SURMCE AREA 1,713.9 SF� DESI A--1,944 S-F PN--S-UkFACF,/APE WEIR LENGTHS X I 0'..W x 2' D S BOTTOM ELEVATION=809.0' TRAP DIMENSIONS=1001 L 13'kWEE �_V, WEIR LENGTH=V v, `ORIFICE (WP) SKIMMER SIZE, 2.'� WITH 1.8 TRAH RACK 831AD,5 UAFFLE BOTTOM ELEVATION=827.0 HO < • - SKIMMER 1.5u WITH 1 ORIFIC c cmp IN 824.64 ER SIZE T :16' R(P O,Jt 624, 0 �2 SKIMMER EC-2 JOUTLET PIPE O I Ik YN 7 A7TACHED 1. R� 6" ti END GO F NSTkUC -2 55 2 f t. 1 i. 00, _7� I '. K� 4'SPILLWAY i 11 24' ��QP !P 1::CON� MAOW k.� TYPE 11 EROSION it's rONTROI MATTIN(-, T AL 8574 4�(_ VIk N 6 \ NOTE: 1. INSTALL EROSION CONTROL PERIMETER MEASURES AND SILT FENCE PER PLAN. SHEET b, I 2. MODIFY EXISTING SEDIMENT TRAP TO DIMENSIONS AND DEPTH SHOWN ON PLAN. EXISTING RIP-RAP SPILLWAY SHALL REMAIN FUNCTIONAL UNTIL ALL EMBANKMENT AND NEW OUTLET STRUCTURE HAS BEEN COMPLETED. REMOVE AND/OR RETAIN EXISTING EROSION CONTROL MEASURES (I.E. BAFFLES, SEDIMENT FENCE) ADJACENT TO EXISTING TRAP AS REFERENCES: DIRECTED BY THE ENGINEER. CnD r2C:nfiAC:-rD1r' CONTROL, CICC Quar--r GL -1 OF 3. PERFORM CONSTRUCTION IN WORK AREA1. SEE SHEET GD-2 FOR DETAILS. FOR BASELINE PROFILE, SEE SHEET PR -1 BY DESCRIPTION NO. DATE * OR SUITABLE EQUIVALENT APPROVED BY THE ENGINEER CENTERLINE ENDWALI N 857402.6519 E 1728808.9584 PHASE 1 GRADING SEE NOTE I - FLOW--W.- DIKE LAYOUT PLAN NOTES: 1. AREA PREPARATION: a) DRY WORK AREA USING SANDBAG DIKES WITH 'PLASTIC BARRIER LINERS AT UPSTREAM AND DOWNSTREAM LIMITS OF STREAM IMPACTS- b) PUMP WATER AROUND WORK AREA UNTIL AREA IS DRY ENOUGH FOR CONSTRUCTION. c).WATER FROM DISTURBED AREA SHALL BE PUMPED THROUGH AN ACCEPTABLE EROSION CONTROL DEVICE (SILT BAGS, SEDIMENT TRAP, ETC.) 2. INSTALL DRAINAGE STRUCTURE #26 AT LOCATION AND ELEVATIONS SHOWN. 3. INSTALL EMBANKMENT ACROSS STREAM. 4. SEED AND MAT EMBANKMENT; STABILIZE AREA. 5. REMOVE TEMPORARY DIVERSION ONCE AREA IS STABILIZED. I'd U%ll '..-rlo.www I E 1728,850.1662 IV x 10' SEDIMENT TRAP (2:1 SIDE SLOPES) OR APPROVED EROSION CONTROL MEASURE )BAG - PROPOSED, LIMIT OF GRADING PROPOSED FINISHED GRADE EXIST. GROUND BASELINE "C" STA 18+00.65 ELEV 817.29 31 ------------------------------- ------------------------------- DBL 60" RCP FLOWLINE @ -1.49% ------------------------------- ----------- SLOPE 1 Y2:1 MAX.----' (TYP) FILTER FABRIC SECTION A-A, N-TS. CLASS 1 RIP RAP 1110100MIL CLASS 1 RIP RAP EXIST. GROUND T T = 20" MIN. H = 4.5' MAX. 2 SECTION B-B NOTE: N.T,S. 1. COMPACT ANY FILL USED IN CONSTRUCTION OF RIP RAP LINED CHANNEL. 2. RIP RAP LINING SHALL BE LEVEL WITH (OR SLIGHTLY BELOW) EXISTING STREAM BED AND/OR PIPE INVERTS. CENTERLINE CONTROL ID DESCRIPTION TOP EL. INV. IN INV. OUT 0+25 'ENDWALL "AI' (NCDOT STD 838.28) 813.70 -- 0+48.79 PIPE 26A 73 L.F. 60" RCP CLASS 111 PT 807.41 806.33 PIPE 26B 73 L.F. 60" RCP CLASS 111 1+32,28 807.38 806.30 g 'ENDWALL "B" (NCDOT STD 838.28) 814.20 1728729.071 POE * OR SUITABLE EQUIVALENT APPROVED BY THE ENGINEER CENTERLINE ENDWALI N 857402.6519 E 1728808.9584 PHASE 1 GRADING SEE NOTE I - FLOW--W.- DIKE LAYOUT PLAN NOTES: 1. AREA PREPARATION: a) DRY WORK AREA USING SANDBAG DIKES WITH 'PLASTIC BARRIER LINERS AT UPSTREAM AND DOWNSTREAM LIMITS OF STREAM IMPACTS- b) PUMP WATER AROUND WORK AREA UNTIL AREA IS DRY ENOUGH FOR CONSTRUCTION. c).WATER FROM DISTURBED AREA SHALL BE PUMPED THROUGH AN ACCEPTABLE EROSION CONTROL DEVICE (SILT BAGS, SEDIMENT TRAP, ETC.) 2. INSTALL DRAINAGE STRUCTURE #26 AT LOCATION AND ELEVATIONS SHOWN. 3. INSTALL EMBANKMENT ACROSS STREAM. 4. SEED AND MAT EMBANKMENT; STABILIZE AREA. 5. REMOVE TEMPORARY DIVERSION ONCE AREA IS STABILIZED. I'd U%ll '..-rlo.www I E 1728,850.1662 IV x 10' SEDIMENT TRAP (2:1 SIDE SLOPES) OR APPROVED EROSION CONTROL MEASURE )BAG - PROPOSED, LIMIT OF GRADING PROPOSED FINISHED GRADE EXIST. GROUND BASELINE "C" STA 18+00.65 ELEV 817.29 31 ------------------------------- ------------------------------- DBL 60" RCP FLOWLINE @ -1.49% ------------------------------- ----------- SLOPE 1 Y2:1 MAX.----' (TYP) FILTER FABRIC SECTION A-A, N-TS. CLASS 1 RIP RAP 1110100MIL CLASS 1 RIP RAP EXIST. GROUND T T = 20" MIN. H = 4.5' MAX. 2 SECTION B-B NOTE: N.T,S. 1. COMPACT ANY FILL USED IN CONSTRUCTION OF RIP RAP LINED CHANNEL. 2. RIP RAP LINING SHALL BE LEVEL WITH (OR SLIGHTLY BELOW) EXISTING STREAM BED AND/OR PIPE INVERTS. CENTERLINE CONTROL ID STA. NORTHING EASTING POB 0+25 PC 0+48.79 857320.0952 1728623.205 PT 0+87.91 857328.8503 1728659.748 PC 1+32,28 857317-7091 1728702.697 PT 1+67.90 857295.5345 1728729.071 POE 2+36 857233.5351 i 1728757.2357 W r TRAPEZOIDAL DITCH,, cl� 2:1 MAX. CLASS 1 RIP RAP LINED (TYP) MAX, SLOPE=5.0% MIN. SLOPE=0.5% d =-I 5- MIN 1+00 W= 15' (0��5 to 6+88) EL. 820.3 +25 +75..; /5� 101 0 +3210 112+36) EL. 820.2 EL.821-2 +50 EL. 820.1 X 6� g EL. 822.4 0,01 00 0 +75 0 0 0 k \/-ffL. 819.9 + CA 0 00 + SEE EROSION 00 �EL 819.8 �-J J, �o TRANSIT 'MOITH TION CONTROL PLANS 0 STA- 0+25, f ' ° ''9-t° `, x` ;; ! 0 MAT... -..._ CH EXIST. RCP a _ ,. \ �r \ 1 _I (INV 823.66-)� C-9 REMOVE v DO NOT DISTU] +36 EXIST. ENDWALL.. EL. 819.6 N -PROPOSED LIMITS \ OF CONSTRUCT ION" \Q) (TYP) 8, 3 0, wall 0 DCT DCT DESIGNED DRAWN PERENIAL STREAM SURVEY 50FT JORDAN BUFFER I OOFT AIRPORT BUFFER STREAM BUFFER DELINEATION FENCE (ORANGE SAFETY FENCE) 8-T-5 EXISTING CONTOUR 835 PROPOSED CONTOUR GRAVEL CONSTR. ENTRANCE om (Detail 3, Sheet EC-1) RIP RAP CHANNEL LINING PROPOSED DRAINAGE 50 25 0 50 SCALE IN FEET REVISIONS �i ti \, \\ % DCT DCT DESIGNED DRAWN I.D, NORTHING EASTING DESCRIPTION TOP EL. INV. IN INV. OUT 57 L.F. 15" RCP CLASS Ill W/ENDWALL 809,34 809.06 857398.4364 1728984.79 DROP INLET (NCDOT STD 840,35) 812.10 809,044 809.34 60 L.F. 15" RCP CLASS Ill 809-73 809.44 857380.509 1728925.187 .-JUNCTION BOX (NCDOT STD 840.31) 814.00 809-83 809.73 174 L.F. 12" RCP CLASS Ill 817-18 809.83 857327.5462 1728775.768 *JUNCTION BOX (NCDOT STD 840.31) 819.50 81728 817.18 113 L.F. 12" RCP CLASS Ill 822-04 817.28 857353.7419 1 7286=74-794DROP INLET (NCDOT STD 840.14) 823.70 822.04 DESCRIPTION WITH FRAME AND COVER (NCDOT STD 840.54) 6f5'- Wt )F MrTAL PLATE PA'R NOTE: 1. INSTALL PROPOSED DRAINAGE TO SEDIMENT/ DRY DETENTION BASIN C. 2. CONSTRUCT ROADWAY FROM STATION 16+00 TO STA 20+25.27 (+/-). DATE: JANUARY 2013 IV REFERENCES: FOR GEOMETRIC CONTROL, SEE SHEET GL-1 FOR BASELINE PROFILE, SEE SHEET PR-1 ROPOSED DRAINAGE 50 25 0 50 SCALE IN FEET REVISIONS F&TIA9 I 50FT JORDAN BUFFER I OOFT AIRPORT BUFFER STREAM BUFFER DELINEATION FENCE (ORANGE SAFETY FENCE) EXISTING CONTOUR 835 PROPOSED CONTOUR om GRAVEL CONSTR. ENTRANCE (Detail 3, Sheet EC-1) INLET PROTECTION (Detail 1, Sheet EC-3) ROCK PIPE INLET PROTECTION (Detail 1, Sheet EC-4) DRAINAGE DIVIDE SEDIMENT FENCE (Detail 2, Sheet EC-1) DIVERSION CHANNEL > > > N (Detail 4, Sheet EC-2) DIRECTION OF FLOW T SD TEMPORARY SLOPE DRAIN (Detail 2, Sheet EC-4) -.sgf DIRECTtON GRADE TO SLOPE DRAIN OF FLOW �sm TYPE I MATTING (Detail 1, Sheet EC-1) D.A.=0.20 Ac., 10 YR Q=0.69 cfs RN moo. RIP RAP CHANNEL LINING PROPOSED DRAINAGE 50 25 0 50 SCALE IN FEET REVISIONS F&TIA9 I I z TWIN BARREL f 1 •STREAM CROSSING GD-2 TRAP H A T TPAP inw n lTr-t-4 \I& '4.1 f%AAY N;Z x 5OFT IAN BUFFER ,jTYP) om , jvwl� TE (D C) N STORAGE EXCAV "A" D.A.=0.20 Ac., 10 YR Q=0.69 cfs pIsT DISTURBED AREA=O. 10 Ac. -RE ' Qq REQ'D STORAGE VOLUME=360 CF btsii DESIGN STORAGE VOLUME=578.2 CF c- 'Ed REqD SURFACE AREA=300.15 SF DESIGN SURFACE AREA--450 SF MAIn T TRAP DIMENSIONS=22'L x 7'W x 2'D WE IR Y. v v. _v B OT1 0%, oft! "I SKIMI! I z TWIN BARREL f 1 •STREAM CROSSING GD-2 TRAP H A T TPAP inw n lTr-t-4 \I& '4.1 f%AAY N;Z x 5OFT IAN BUFFER ,jTYP) om , jvwl� TE (D C) �� SEQUENCE AND ^ �-...~`�"~�"~ CONTROL "~^�"- ~�~~".~,"^.~=.°. "~~.. ~.~_,=~~�~~~~~-. �~.~ ..� `""",~-,"° �`~�~��""~~ NOTES: 1. ALL TEMPORARY DIVERSION BERMS' &QLT FENCE. 8c EROSION 8c SEDIMENT CONTROL MEASURES REQUIRED FOR LAND DISTURBANCE WITHIN A WCRK AREA SHALL BE INSTALLED PRIOR TO BEGINNING WORK WITHIN THAT WORK AREA, 2. THE CONTRACTOR SHALL SUBMIT TO THE ENGINEER AND OWNER A DETAILED CONSTRUCTION PROGRESS SCHEDULE. THESE PLANS AND SPEQi |CAT|0NS PROVIDE GENERAL CONSTRUCTION SEQUENCE AND SAFETY PARAMETERS WHICH MUST BE INCORPORATED INTO THE APPRCVED 3CHEDULE, THE CONTRACTOR'S EROSION CONTROL PLAN SHALL BE INCORPORATED IN THE CONSTRUCTION SEQUENCE PLAN. 3. THE CONTRACTOR SHALL |k�PLEkXENT �EST MANAGEMENT PRACTICES IN ALL MATTERS OF CONTROLLING - ER03|DH, AND COLLECTION OF SE0K4BWT YNTM|N THE PROJECT SITE. 4. ANY FINES, PENALTIES, OR OTHER COSTS ASSESSED BY STATE, LOCAL OR THE GOVERNMENTAL AGENCIES FOR NON-PERFORMANCE OF THE EROSION CONTROL REQUIREMENTS OF THIS PROJECT AGAINST THE AIRPORT AUTHORITY SHALL BECOME TH[ RESPONSIBILITY OF THE CONTRACTOR, AND ANY SUCH ASSESSMENTS, IF NOTP/\iD BY THE DONTRACT()R, VN:_L BE DEDUCTED FROM MONIES DUE AT THE COMPLETION OF THIS PROJECT. 5. THE ENGINEER MAY DIRECT THAT ADC�TON/\L EROSION CONTROL MEASURES BE INSTALLED AT ANY TIME AND IN ANY LOCATION AS DEEMED NECESSARY. 6. ALL EROSION AND SEDIMENT CONTROL PRACTICES WILL BE CHECKED F0� STABILITY AND CPERAT|(}N FOLLOWING EVERY RUNOFF - PR0DU[%NG RAINFALL, BUT IN NO CASE LESS THAN ONCE EVERY WEEK. ANY NEEDED REPAIRS WILL BE MADE TO MAINTAIN AL_ PRACTICES AS DESIGNED. 7. SEDIMENT VYLL BE REMOVED FROM BEHIND THE SILT FENCE WHEN IT REACHES 0.5 FEET DEEP. THE EROSION CONTROL BARRIER WILL BE IFF"EPA|RED AS NECESSARY TO MAINTAIN A B/\RR|ER, 8. THE DE-WATERING OF EROSION CONTFOL MEASURES WITH SEO/MENT-LADEN WATER DIRECTLY TO STREAMS IS PROHIBITED. 9. TEMPORARY SEDIMENT TRAPS REQUIRED FOR THE EXCAVATION OF AN UPSTREAM DITCH Sf_-ALL BE INSTALLED AT THE ELEVATION RE(}UiPED FOR IT T0 BE OPERATIONAL AFTER THE EXCAVATION OF THE DITCH. 1& ALL TEMPORARY SEDIMENT TRAPS SHALL PREVENT SEDIMENT FROM ENTERING ANY WETLANDS DURING CLEARING & GRUBBING OPERATIONS ,/ EXCAVATION OPERATIONS. 11. ALL TEMPORARY DIVERSIONS SHALL HAVE POSITIVE DRAINAGE T0 RESPECTIVE EROSION AND SEDIMENT CONTROL MEASURE /TYP.\. 12. ALL TEMPORARY SED|K4EN7 TRAPS SHALL PREVENT SEDIMENT FROM LEAVING THE CONSTRUCTION SITE AND ENTERING JURISDICTIONAL WAT_RS DURA|NG CLEARING AND CRU3B|NG OPERATIONS AND DURING EXCAVATIONS OPERATIONS. CONTRACTOR SHALL MAINTAIN ALL EXISTING AND PROPOSED EROSION CONTROL MEASURES WITHIN A|RPORT1PRDPERTY LIMITS FOR T�-E DURATION OF PROJECT AND UNTIL THE REMOVAL OF EROSION CONTROL MEA5@RE3 |3 APPROVED BY THE NORTH CAROLINA DEPARTMENT OF H ENVIRONMENT AND NATURAL RESOURCES, DIVISION OF LAND RESOURCES, LAND QUALITY SECTION. THE CONSTRUCTION OF THE PROJECT MUST BE COMPLETED IN SEQUENTIAL ORDER AS LISTED BELOW: 1. CONTACT LAND QUALITY PRIOR TO START OF CONSTRUCTION. 2' INSTALL CONSTRUCTION ENTRANCE ?ADS. 3. INSTALL SILT FENCE AROUND PERIMETER OF THE SITE AS SHOWN ON THE PLANS. 4. INSTALL SEDIMENT BAS|N3, 3ED}K4E�T TRAPS, AND DIVE-RS|OH DITCHES BEFORE BEG|MN1NG, AS SHOWN ON PLANS. 5. BEGIN CLEARING AND GRUBBING OF-RATIONS ON THE PROJECT SITE. 6. AS CONSTRUCTION OPERATIONS ALI- OVY. STRIP TOPSOIL AND STOCKPILE. 7' INSTALL DIVERSION D|TCHES, AS NE�ESSARY, T0 CONVEY RUNOFF TO EROSION CONTROL MEASURES. 8. BEGIN GRAD1N3 OPERATl0N& INSTALL EROSION CONTROL MEASURES, AS SHOWN ON THE PLANS, AS CONSTRUCTION PROCEEDS. S� SLOPE DRAINS WIT-i BERMS SHALL 3E INSTALLED CONCURRENTLY WITH GRADING OPERATIONS. SILT FENCE SHALL BE INSTALLED AROUND SLOPE AREAS PRIOR TO START OF GRADING OP.RAT|ON3. 10. PLACE TDPSOI:L FROM DNS|TE STOCKPILE ON COMPLETED AREAS OF GRADING AS CONSTRUCTION PROCEEDS. 11. COVER ALL SLOPES 3:1 OR LESS V8TH TYPE l TEMPORARY EROSION CONTROL MATTING (EXCELSIOR ` CURLEX CL 1' OR APPROVED EQUAL), COVER ALL SLOPES GREATER THAN 3:1 WITH TYPE 2 TEMPORARY EROSION CONTROL MATTING TRM-V` 1 OR APPROVED EQUAL). 12. GROUNDCDVER SHALL BE ESTABLISHED ON ALL EXPOSED SLOPES WITHIN 7 CALENDAR DAYS FOLLOWING COMPLETION OF ANY PHASE OF GRADING. lJ. PERMANENT CROUNDCOVER SHALL BE E�TABL|5HED ON ALL DISTURBED AREAS WITHIN 14 CALENDAR DAYS FOLLOWING COMPLETION OF CONSTRUCTION, 14. ONCE PERMANENT VEGETATION HAS BEEN ESTABLISHED ANC ACCEPTED BY THE NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES (NCDENR) THE CONTRACTOR SHALL REMOVE THE TEMPORARY EROSION CONTROL DEVICES, RE-CRADE, AND RESEED AS NECESSARY. ALL ST4C|N{; AREAS AND HAUL ROUTES SHALL BE RESEEDED. 15. CONTRACTOR SHALL RESTORE ALL TEMPORARY IMPACT AREAS VWTH|N THE BUFFER AREAS AND STREAM � T0 PRE- CONSTRUCTION CONDITIONS OR|OR TO THE COWPLEl0N OF THE PROJECT. CONSTRUCTION SEQUENCE FOR SEDIMENT TRAPS 1. INSTALL SEDIMENT TRAPS AND ERCSION CONTROL MEASURES PER SHEET G8-1. CONSTRUCT EARTHWORK TO LINES AND GRADES AS SHOWN ON SHEETS GD-2 THRU GD-4. 2� ARE/\S DRAINING T0 SEDIMENT TRAPS SHALL BE STAB|L|ZED, AND HAVE AN APPROVED STAND OF GROUND COYER PRIOR TO CONSTRUCTING PERMANENT ROADWAY EMBANKMENT. 3^ IMMEDIATELY SEED` MULCH, AND INSTALL MATTING AT THE CONCLUSION OF GRADING OPERATION ON SPECIFIC AREA. 4. DO NOT REMOVE DIVERSIONS OR TFAP3 UNTIL THE SITE HAS ESTABL!SHED GROUND COVER AND _1A3 BEEN APPROVED BY NCDENR. .i DATE |BYK DESCRIPTION � ALL SOIL STABILIZATION MEASURES SHALL MEET THE REQUIREMENTS OF ITEMS T-901, T-905` AND T-808 OF THE SPECIFICATIONS. GROUNDCOVER SHALL BE ESTABLISHED ON ALL EXPOSED SLOPES WI-H|N 7 CALENDAR DAYS FOLLOWING COMPLETION OF ANY PHASE OF GRADING. PERMANENT GR0UNDCOVER SHALL BE ESTABLISHED ON ALL DISTURBED AREAS WITHIN 14 WORKING DAYS FOLLOWING COMPLETION OF CONSTRUCTION. 2- PRIOR TO SOIL STAB|L|Z/`T0N, AREAS SHALL BE CLEARED OF STONES OR DEBRIS LARGER THAN 2 INCHES !N D.AwETER' J. AREA TO BE SEEDED SHALL BE THOROUGHLY LOOSENED T0 A DEPTH OF 5 INCHES. THE TOP J INCHES SHALL BE WORKED INTO A SATISFACTORY SEEDBED BY DI3C|NG, OR BY USE OF CULTiPACKERS` ROLLERS, EIRAGS` OR OTHER APPROPRIATE MEANS. 4. T',HE K'NDS OF SEED AND THE RATES OF APPLICATION OF SEED SMALL BE AS STATED BELOW. ALL RATES ARE IN POUNDS PER ACRE. All L AREAS EXCEPT 5TORMWATER MANAGEMENT PONDS- PIERMANENT SEEDING 1QO#TALL FESCUE 1Q# KOBE LESPEDEZA 25# BAH(A GR/\33 4,0# RYE GRAIN /JANUARY T0 FEBRUARY APPL|CAT|ON\ TEMPORARY SEEDING TEMPORARY SEEDING FOR THE PROJECT SHALL MEET ALL REQUIREMENTS PUBLISHED WITHIN THE CURRENT BB|Tl0N OF THE NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL AND NATURAL RESOCRCES, DIVISION CrF LAND RESOURCES, LAND QUALITY SECTION'S EROSION AND SEDIMENT CCNTROL PLANNING AND DESIGN 1QANUAL, TABLE 0.10A' TABLE 6.10B AND TABLE 6,10C FOUND ON PACE 5.10.4. PAGE 6.10.5 AND PAGE 6_18.5. NOTE: WHERE NOTED ON PLANS, -SER|CEA LE5PEDEZA SEED SHALL BE ADDED TO THE SPECIFIED SEED kdXTURE AT A �ATE OF TH|RTY P0UND3 �ER AC�E. NO ADDITIONAL PAYMENT SHALL BE WACE FOR THE A]O|7lON OF SER)CEA L[5PEOEZA SEED. STORMWATER MANAGEMENT PONDS PERMANENT SEEDING: /AY TO SEPTEMBER APPLICATION:) /OCTOBER T0 APRIL 4PpUCAllON:\ `- ' # TALL FESCUE / `2O# TALL FESCUE / 25' � BERMUDA GRASS 15# BERMUDA GRASS 25# BAHIA GRASS 10# BLUE GRASS 10# HARD FESCUE �HE K|NDS OF GRA5S, LEGUME, AND COVER-CROP SEED FURNISHED SHALL BE THOSE STPULAT[D ABOVE. S-E-ED SHALL CONFORM TO THE REQUIREMENTS OF FEDERAL SPECIFICATION JJJ-S-181. SEED SHALL BE FURNISHED SEPARATELY OR IN MIXTURES IN STANDARD CONTAINERS WITH THE SEED NAK4E, LDT NUVIBER. NET WE(SHT' PERCENTAGES OF PURITY AND OF GERKJ|N/\llCN AND HARD SEED, AND FERCENTAGE0F MAXIMUM WEED SEED CONTENT CLEARLY MARKED FOR EACH KIND OF SEED. THE C-ONTRACTOR SHALL FURNISH THE ENGINEER DUPLICATE SIGNED COPIES OF A STATEMENT BY THE VENDOR CERTIFYING TESTING WITHIN 3|X /6\ MONTHS OF DATE OF DEL/VERY. THIS STATEMENT SHALL INCLUDE: NAME AND ADDRESS OF LABORATORY, DATE OF TEST, L()T NUMBER FOR EACH KIND OF 3EED, AND THE RESULTS OF TEST /\3 TO NAME, PERCENTAGES OF PURITY AND OF GERk4|N/\T0N, AND PERCENTAGE OF ��ED CONTENT FOR EACH KIND OF SEED. 5, G-ROUND LIMESTONE SHALL BE APPLIED PRIOR TO APPLICATION OF FERTILIZER OR SEED AND SHALL BE VV!ORKED INTO TOP 3 INCHES OF SOIL, 8. FIERTlUZER SHALL B_ SPREAD UNIFORMLY OVER ALL AREAS TO BE SEEDED AFTER LIMING IS COk4PLET_. 7 GRASS SEED SHALL BE APPL|EO AT THE RATE ND|CATED ABOVE AND |N THE SPEC|F|CATIONS, PROPERLY COVERED' AND COMPACTED WITH AN APPROVED LAWN ROLLER. 8. fvULCI-. SHALL BE APPLIED IMMEDIATELY AFTER SEEC|NG, MULCH MUST MEET THE REQUIREMENTS OF ITEM T-9O8. Q. STRAW MULCH SHALL BE SPREAD TO A UNIFORM THICKNESS AT THE RATE OF 2 - J TONS PER ACRE TO PROVIDE A LOOSE DEPTH OF NOT LESS THAN 1-112 INCHES NOR MORE THAN 5 INCHES. 1& yitULCH. SHALL BE HELD IN PLACE BY LIGHT O|S]NC' P|N5, STAKES, WIRE MESH, OR ASPHALT BINDER. <l. |F ASPHALT SPRAY METHOD |3 USED, MULCHED SURFACES SHALL BE SPRAYED UNIFORMLY AT A RATE OF APPROXIMATELY 8.0 GALLONS PER 1.000 SQUARE FEET. 12� IF ASPHALT MIX METHOD IS USED, THE MULCH SHALL BE APPLIED BY BLOWING AND THE ASPHALT BINDER k6ATERIAL SHALL BE SPRAYED INTO THE MULCH AS IT LEAVES THE BLOWER. BINDER. SHALL BE UNIFORMLY APPLIED TO THE MULCH AT THE RATE OF APPROXIMATELY 8.0 GALLONS PER 1.000 SC)U/\R[ FEET. 13. CONTRACTOR SHALL PROTECT SEEDED AND MULCHED AREAS AGAINST TRAF-|C, SURFACES GULL|ED DR DAMACEDSHAL_ BE REPAIRED, RESEEDED, AND REMULCHED, CONTRACTOR SMALL MOW, WATER ' AND OTHERWISE MAINTAIN SEEDED AREAS IN A SATISFACTORY CDND|llCN UNTIL FINAL INSPECTION AND TO BE INSTALLED IN ACCORDANCE wl MANUFACTURERS SPECIFICATIG,�'IS 8'-0° MAX- POST SPACING ELEVATION VIEW STEEL POST—\ /--WOVE\,I WIRE FENCE SYNT�ETlC FILTER FABRIC 118" - 24 ^ EXIST. GROUND LINE � _ � " | | �` `rl | .-- C0WFACT[D SOIL OR GRAVEL 1. N00]E\J POSTS SHALL NOT BE USED FOR SILT FENCE INSTALLATION, PCSTS SHALL BE 1.33 LB/L|N. FT. STEEL WITH A M|N|kWUM LENGTH OF 5 FEET. 2 INSTALL SILT FENCE WHERE SHOWN ON THE PLANS AND MAINTAIN UNTIL DISTURBED AREA |3 COMPLETELY STABILIZED. TEMPORARY SILT E 1. PUT SILT FENCE OR TREE PROTECTION FENCE UP TO ENSURE THE CONSTRUCTION ENTRANCE IS USED. 2.|F CONSTRUCTION ON THE SITE ARE SUC� THAT THE kJUO IS NOT REMOVED BY THE V[H|CL_-_' TRAVELING OVER THE STONE, THEN THE TIRES OF THE VEHICLES MUST BE WASHED BEFORE ENTERING THE PUBLIC ROAD. 3. IF A PROJECT CONTINUES T0 PULL MUD AND DEBRIS ON TO THE PUBLIC ROAD, THE CONTRACTOR SHALL CLEAN THE AREA. 25' OR WIDTH OF PROPOSED STREET, WHICHEVER IS | J_ 5'MH EXISTING ROADWAY 35' MIN. , 15 W|k CROSS SECTION 7 Poo N.l[S. E S S3 Ee- DCT DCT DESIGNED DRAWN I JA mvw.mbakercorp.com MICHAEL BAKER ENGINEERING, INC 7800 Airport Center Drive Suite 100 � �� Greensboro, ''__' '-- OFC: (336)931-1500 FAX� /336\931-1501 DATE: JANUARY 2013 SCALE: AS SHOWN SHEET cami OF EC-4 | OP OF DAM EMERGENCY SPILLWAY RISER R|KJ 10' SPILLWAY - 2 A zu" 3 RISER CLAY CORE (CH, MATERIAL) TO CRIFICE AT BOTTOM OF RISER BARREL ANTI—SEEP COLLARS t p \ I � 86C8 FOOTING \_K�Y IN CUT—OFF TRENCH * CUT TRENCH TO STABLE SOIL MATERIAL, BUT IN � NO CASE MAKE IT LESS THAN 2` DEEP �8" CLASS B 1�\IP RAP CONCRETE ANB—SEEP /—CONCRETE ANTI—SEEP COLLAR COLLAR ¥ NOTE: EXACT ELEVATIONS TO BE FIE-D VERIFIED AND ADJUSTED PRIOR TO ACTUAL CONSTRUCTION OF SEDIMENT BASIN. POROUS BAFFLES 3 EACH ' NOTE: INSTALL BAFFLES |N SAME MANNER AS SILT FENCE. REPLACE SiLr FENCE FABRIC WITH 7CO g/' oq nn CD[R EROSION BLANKET. BAFFLES SHALL EXTEND UP THE ENTIRE SIDES OF THE BASIN. I.D. STORAGE SURFACEAREA WIDTH I BARREL BARREL 11: ORIFICE. TOP, OF IFEIITTERUER RISER RISER SEDIMENT oil ,goal's DAM SPILLWAY RIM CLEANOUT ELEV. ELEV. ELEV. ELEV. ¥ NOTE: EXACT ELEVATIONS TO BE FIE-D VERIFIED AND ADJUSTED PRIOR TO ACTUAL CONSTRUCTION OF SEDIMENT BASIN. POROUS BAFFLES 3 EACH ' NOTE: INSTALL BAFFLES |N SAME MANNER AS SILT FENCE. REPLACE SiLr FENCE FABRIC WITH 7CO g/' oq nn CD[R EROSION BLANKET. BAFFLES SHALL EXTEND UP THE ENTIRE SIDES OF THE BASIN. I.D. STORAGE SURFACEAREA WIDTH LENGTH DEPTH LENGTH Deim "C" ENCLOSURE WATER ENTRY UNIT PERSPECTIVE VIEW OF SKIMMER 5' M|N FLCVy |— —| COMPACTED SOIL BAFFLES 2' N|N. � ��~�.��° m��n�� 1. TEMPORARY SILT DIVERSION DITCH VY|LL NDT BE MEASURED. COST VY1L BE INCIDENTAL TO OTHER ITEMS. 2. TEMPORARY GROUND COVER MUST BE ESTABLISHED IN ALL DIVERSION DITCHES. l. MAINTAIN EXISTING TEMPORAR"T' SEDIMENT TRAPS. 2. STORAGE CAPACITY SHALL BE 3'600 FT'/ ACRE OF DISTURBED AREA. 1 STONE SIZE SHALL BE CLASS 'B^ WITH A ONE FOOT (1 FT.) LAYER OF NCD0T # 57 4. PLACE FILTER FABRIC BELOW RIP PAP. 5. REMOVE SEDIMENT TRAPS AS DIRECTED BY THE ENGINEER. 6. REMOVE SEDIMENT WHEN VOLdkjE IS ONE—HALF OF REQUIRED STORAGE VOLUME 7. REQUIRED STORAGE CAPACITY AND SURFACE AREA ARE MEASURED FROM THE WEIR ELEVATION. DATE BY DESCRIPTION SIDE NEW � N.l�5. ��-7 ` ~� ir PVC END CAP PVC ELBOW D CAP PVC TE[—� | �—PVC PIPE 1/2''H0LES IN | | UNDERSIDE END \4EVY OF SKIMMER OUTLET REVISIONS DATE I BY DEWATER|NG CONCRETE BLOCK -0.. AQ.. k. _ T— ---= �- �.1 SLOP[ WASHED STONE FILTER TEMPORARY WIRE SEDdMENT POOL SCR�EN --PROVIDE ONE 0EVYATERiNC BLOCK PER SIDE \—DROP INLET SEDIMENT W/ GRATE COST OF INLET PROTECTION SHALL BE INCLUDED IN THE COST OF STRUCTURE. N,l[S. / 1_D� 3LC;IPE 1-1/2:1 OR FLATTER ! D / SECTION A-A ^ FILTER FABRIC H= RIP RAP TO TOP OF PIPE (MAX. H = D i Tl T= 20' CLASS | RIP RAP` UNLESS OTHERWISE SHOWN ON PLANS T= 12" CLASS `B' RIP RAP, UNLESS 01-HERVN3E SHOWN ON PLANS OUTLET WITH DITCH D CLASS I RIP-RAP S. Y TONS FILTER FABRIC 36" 29 15 30 42" 22 13 30 48"1 49 26 50 541 60 33 62 gym A � 12" No. 57 WASHED STONE N.'[�,:l Ld r/x `^coT �vL_,' RIP RAP r/L I ER r*um. / k � 01 L-f CL| C�_| SECTION ��mm��m`m A~A T= 20" CLASS | RIP RAP, UNLESS OTHERYV|3E SHOWN ON PLAN� T= 12" CLASS 'B' RIP RAP, UNLESS 0TH[RVVSE SHOWN ON PLANS 1. SEE GRADING PLANS FOR RIP RAP APRON DIMENSIONS. 2. COMPACT ANY FILL J3EC IN CONSTRUCTION OF APRON. 3. RIP RAP APRON SHALL BE LEVEL WITH RECEIVING S;'REAM OR SLIGHTLY BELOW. OUTLET WITHOUT DITCH 36" 16 10 23 42" 22 13 30 54" 36 21 47 PIPE OUTLET PROTE%C�"TION WITHOUT DITC.'o"H 4�0�� \ ��n��m� �� \— FILTER FABRIC L = THE DISTANCE SUCH THAT POINTS A AND 8 ARE OF EQUAL ELEVATION ir In CLASS 'B' EROSION CONTROL STONE DCT DCT DESIGNED DRAWN ' '^ CHECKED S.O. www.mbakereorp.com MICHAEL BAKER ENGINEERING, INC 7800 Airport Center Drive Suite 100 Greensboro, NC OFC: 1-1508 FAX: (3361931_1501 DATE: JANUARY 2013 - --i _ .___._ i