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Home My WebLink About20061804 Ver 36_Stormwater Rev Set_20201231NORTHFORTSECTION7PB69PG243NORTHFORTSECTION9PB66PG49NORTHFORTSECTION8PB64PG79CE-01BUFFALOROADTYPICALLOTSECTIONSTREET''A''STREET''F''STREET''E''STREET''G''STREET''C''STREET' 'B' 'STREET''B''S T R E E T '' B ''STREET''D''LI NE"A" BUFFALOROADSTREET''A''STREET''F''STREET''E''STREET''G''STREET''C''STREET' 'B' 'STREET''B''S T R E E T '' B ''STREET''D''NORTHFORTSECTION7PB69PG243NORTHFORTSECTION9PB66PG49NORTHFORTSECTION8PB64PG79CE-08 STREET''A''STREET''F''STREET''E''STREET''G''STREET''C''STREET' 'B' 'STREET''B''S T R E E T '' B ''STREET''D''NORTHFORTSECTION7PB69PG243NORTHFORTSECTION9PB66PG49NORTHFORTSECTION8PB64PG79CE-14 VEGETATED SHELF LANDSCAPE PLAN VEGETATED SHELF = 31405 SF ALL PLANTS SHALL BE 3" CONTAINER PLANTS, THERE SHALL BE A MINIMUM OF 3 PLANT SPECIES, AND A MINIMUM OF 50 PLANTS PER 200 SF OF VEGETATED SHELF. SUBSTITUTION OF THE LISTED PLANTS ARE ALLOWED BUT MUST BE APPROVED BY THE ENGINEER. BELOW PERMANENT POOL Botanical Name Common Name QTY. Iris virginica Blue Flag Iris 284 Ludwiga spp. Primrose Willow 284 Pontederia cordata Picklerweed 284 POND SIDE SLOPES Vegetate w/Centipede Seed @ a rate of 60 lbs./Ac. � SCM WET P 20' WIDE CONCF�_E SPILLWAY WITH CLASS B RIP RA SLOPE / / / / a. ao 0 . STAGE/STORAGE TABLE CONTOUR INCREMENTAL TOTAL STAGE ELEVATION AREA (SF) STORAGE (CF) STORAGE (CF) 0 262.00 18,460 0 0 1.00 263.00 20,623 19,542 19,542 2.00 264.00 22,843 21,733 41,275 3.00 265.00 25,119 23,981 65,256 4.00 266.00 27,451 26,285 91,541 4.50 266.50 29,839 14,323 105,863 NOTE: CONTRACTOR TO COMPACT BOTTOM OF POND TO ENSURE INFILTRATION IS LESS THAN 0.01 IN./HR. NOTE: A PORTABLE PUMP SHALL BE USED FOR PUMP DOWN AND MAINTENANCE. � 3 1 6:1 VEGETATED SHELF 1.48 FT. FREEBOARD - 1 YEAR STORM 265.02 1 2 �1 BOTTOM FOREBAY 257.00 2 /5 1F PERMANENT POOL 262.00 BOTTOM POND 256.00 WET DETENTION POND PROFILE NOT TO SCALE � RIP RAP OUTLET PROTECTION LENGTH = 21' START WIDTH = 11' END WIDTH = 25'/ I DEPTH = 18" \ \ i FES INV \ 24" RCP 257.0 f>> 1.0� W 6' FE�5 _- - r / • � 6, \ 6 TE � ANTI -SEEP COLLAR 4'X6'\�BOW W/ TRASI RACK TOP: 26 00 INV. IN (3. "). 262.00 INV. OUT (24" . 57.55 6' WIDE (6:1) SUBMERGED VEGETATED SHELF 3,405 SF �� _�, -,, Z � �,� 1 C 1Z 1�A- U SCALE: 1 " = 20' 0 20 40 50 60 AND THE ANGEL SAID TO THEM, "FEAR NOT: FOR BEHOLD, I BRING YOU GOOD TIDINGS OF GREAT JOY, WHICH SHALL BE TO ALL PEOPLE. FOR UNTO YOU IS BORN THIS DAY IN THE CITY OF DAVID A SAVIOR, WHO IS CHRIST THE LORD. LUKE 2: 10-11 TOP OF DAM 266.50 3 1� 6:1 2 VEGETATED 1 SHELF ;•1 oil 4:1 1111111100,14101100 NOT TO SCALE A'\,W DROP INLET TRASH RACK 264.00 3.5" PVC ORIFICE @ 262.00 W/ TEE (SEE DETAIL) BEFORE YOU DIG, CALL 0 0 NORTH CAROLINA &NE CALL CENTER www.ncocc.org 3.5" PVC CAP WITH SCREW TYPE PLUG TOP ELEV. 264.75 NORMAL POOL = INV. ELEV. 262.00 BOTTOM ELEV. 261.50 3.5 )1 PVC Conversion Procedure Sediment Basin to Wet Detention Pond 1. After the site is completely stabilized, contact Stocks Engineering @ 252-459-8196 for verification of completion and stabilization. 2. Contact Johnston County for approval to remove all temporary erosion control measures. 3. Upon approval from Johnston County, begin the conversion of the wet pond from a temporary sediment trap to a permanent BMP as follows. 4. If standing water is in the basin, contractor shall pump the water out discharging through a silt bag. 5. Remove the skimmer which is connected to the riser and convert to the permenent orifice as shown below in detail. 6. Bring the side slopes surrounding the pond and vegetated shelf to the proposed grade. 7. Contractor shall verify pond depth and muck out sediment to the design depth of the pond. 8. Excavated material must be disposed of in an approved off -site location. 9. Care must be taken to prevent any sedimentation/re-sedimentation during this process, as sediment deposits in the bottom of the pond may affect the depth. If any sedimentation occurs during this process, Contractor shall remove sediment immediately. 10. Contact Stocks Engineering @ 252-459-8196 to inspect excavated pond before continuing construction. 11. Upon approval of Stocks Engineering, continue constructing pond per details. Establish appropriate permanent vegetation around pond as soon as possible. 12. Upon completion of pond construction, remove sediment from silt fence and dispose of at an approved off -site location. Plant vegetated shelf and seed and mulch side slopes. 13. Contact Stocks Engineering @ 252-459-8196 to inspect completed pond before placing pond in service. orn r00 x1 0 mL0 o^ N L0 N w Z 0 0 U 0 z Of Ld Z 0 Z w Z Cn � U O WF w w LUch F- Z00 oLQ • � Z N MC� Z ZF- w J W 0 ¢ w' = oa 00 Z BLN=C-1874 C ARI �o"",,,. Q�•o•Ess. i '� SEAL 19843 'PIAEL 5� It Xu"Z� / „/„ /2020 SCM #1 DETAIL REVISIONS 11/20/20 QAQC 12/31/20 STORMWATER REV. FILE NO. 2020-013 HORZ. SCALE: 1"=50' VERT. SCALE: NONE �Af O • `ram �FENV �221. fY SO I I I I 41X6' BOX ' TRASH RACK TOP: 241.00 IINV. IN (4"): 238.00 � I I I I I INV. OUT (24"):235.10 6' WIDE SUBMERGED /VEGETATED�SHELF (6:1) 2,235 SF ilj'lie .00 6:1 VEGETATED SHELF 2.45 FT. FREEBOARD 1 2 �1 BOTTOM FOREBAY 234.00 2 1� /5 1F_ 1 YEAR STORM 241.05 13 � PERMANENT � POOL 238.00 6:1 2 VEGETATED 1 SHELF WET DETENTION POND PROFILE NOT TO SCALE STAGE/STORAGE TABLE BOTTOM POND 229.00 CONTOUR INCREMENTAL TOTAL STAGE ELEVATION AREA (SFI�5TORAGE (CF) STORAGE (CF) 0 238.00 19,782 0 0 1.00 239.00 21,688 20,735 20,735 2.00 240.00 24,135 22,912 43,647 3.00 241.00 26,921 25,528 69,175 4.00 242.00 30,595 28,758 97,933 5.00 243.00 35,244 32,920 130,852 5.50 243.50 38,734 18,495 149,347 OUTLET STRUCTURE NOT TO SCALE 4'YF)' DROP INLET TRASH RACK 241.00 TOP OF DAM 243.50 BEFORE YOU DIG, CALL a0 0 1 NORTH CAROLINA ONE CALL CENTER www.ncocc.org NOTE: CONTRACTOR TO COMPACT BOTTOM OF POND TO ENSURE INFILTRATION IS LESS THAN 0.01 IN./HR. NOTE: A PORTABLE PUMP SHALL BE USED FOR PUMP DOWN AND MAINTENANCE. VEGETATED SHELF = 21235 SF ALL PLANTS SHALL BE 3" CONTAINER PLANTS, THERE SHALL BE A MINIMUM OF 3 PLANT SPECIES, AND A MINIMUM OF 50 PLANTS PER 200 SF OF VEGETATED SHELF. SUBSTITUTION OF THE LISTED PLANTS ARE ALLOWED BUT MUST BE APPROVED BY THE ENGINEER. BELOW PERMANENT POOL Botanical Name Common Name QTY. Iris virginica Blue Flag Iris 187 Ludwiga spp. Primrose Willow 186 Pontederia cordata Picklerweed 186 POND SIDE SLOPES Vegetate w/Centipede Seed @ a rate of 60 lbs./Ac. Conversion Procedure Sediment Basin to Wet Detention Pond 4" PVC ORIFICE @ 238.00 1. After the site is completely stabilized, contact Stocks Engineering @ W/ TEE (SEE 252-459-8196 for verification of completion and stabilization. DETAIL) 2, Contact Johnston County for approval to remove all temporary erosion control measures. 3. Upon approval from Johnston County, begin the conversion of the wet pond from a temporary sediment trap to a permanent BMP as follows. 4. If standing water is in the basin, contractor shall pump the water out discharging through a silt bag. 5. Remove the skimmer which is connected to the riser and convert to the permenent orifice as shown below in detail. 6. Bring the side slopes surrounding the pond and vegetated shelf to the 4" PVC CAP WITH proposed grade. SCREW TYPE PLUG 7. Contractor shall verify pond depth and muck out sediment to the TOP ELEV. 240.75 design depth of the pond. 8. Excavated material must be disposed of in an approved off -site location. 9. Care must be taken to prevent any sedimentation/re-sedimentation during this process, as sediment deposits in the bottom of the pond NORMAL POOL = may affect the depth. If any sedimentation occurs during this process, INV. ELEV. 238.00 Contractor shall remove sediment immediately. 10. Contact Stocks Engineering @ 252-459-8196 to inspect excavated pond before continuing construction. BOTTOM ELEV. 11. Upon approval of Stocks Engineering, continue constructing pond per details. 277.50, 4" PVC Establish appropriate permanent vegetation around pond as soon as possible. 12. Upon completion of pond construction, remove sediment from silt fence and dispose of at an approved off -site location. Plant vegetated shelf and seed and mulch side slopes. 13. Contact Stocks Engineering @ 252-459-8196 to inspect completed pond before placing pond in service. o� r00 XI 0 L0 m o^ N N w Z 0 0 U 0 Z Of w Z 0 Z w Z Cn U W�� w� w WU) Z Z00 oLQ Z N M = U Z Z�w W> 0J w Z 00 BLN=C-1874 Q�•o•EssR. = Q� SEAL � = 19843 4, 'PHAEL 5�� / „/„ /2020 SCM #2 DETAIL REVISIONS 11/20/20 QAQC 12/31/20 STORMWATER REV. FILE NO. 2020-013 HORZ. SCALE: 1"=50' VERT. SCALE: NONE r AND THE ANGEL SAID TO THEM, "FEAR NOT: FOR BEHOLD, I BRING YOU GOOD TIDINGS OF GREAT JOY, WHICH SHALL BE TO ALL PEOPLE. l FOR UNTO YOU IS BORN THIS DAY IN THE CITY OF DAVID A SAVIOR, WHO IS CHRIST THE LORD. LUKE 2: 10-11