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HomeMy WebLinkAboutSW4240501_Plansheet - SCM Detail_20240819 (2) x ENGINEER'S CERTIFICATION OF STORMWATER QUALITY CONTROL LEGEND_ FACE—OF-CURB TO FACE—OF-CURB Q� I CERTIFY THAT, PURSUANT TO GENERALLY ACCEPTED ENGINEERING STANDARDS AUE ACCESS &CUTIBITY EASEMENT \ \ / IN THE COMMUNITY, IT IS MY PROFESSIONAL OPINION THAT RUNOFF FROM THE ��� ���� 'c�JGj SI TE FIRST INCH OF RAINFALL IS CONTROLLED BY A PERMANENT ENGINEERED ��J��N CAROB����� AE ACCESS EASEMENT �� \ \ STORMWATER QUALITY CONTROL THAT HAS BEEN DESIGNED TO MEET OR �� f�L / ., FFE FINISHED FLOOR ELEVATION �• \ \\ EXCEED THE REQUIREMENTS IN THE NORTH CAROLINA DEPARTMENT OF ' �0 ��FESS/Q�9 -,'� MAE MAINTENANCE & ACCESS EASEMENT ENVIRONMENTAL QUALITY ST RMWATER DES IG A AL. \� \ \ \ y \ �� = SEAL SDE SIGHT DISTANCE EASEMENT I \ \ \ oo DISTURBED AREA o \ \ 1 \ P.E. SIGNATURE . 10727 . )))) 1 \ - DATE AUGUST 19, 2024 �'o0A F NGI NEE W DIVERSION R BERM lO Z � P EX. POWER '., S ZC ,�. G EX. COMMUNICATION — GAS — EX. GAS 6'���z WATER VALVE HONE❑ PEDESTAL VICINITY MAP , ® UTILITY POLE 1" = 2000' / \ ENGINEER'S CERTIFICATION OF STORMWATER QUANTITY CONTROL ���� N CARD ��i,� �- SIGN C.`n THE STORMWATER CONTROL STRUCTURE(S) SHOWN ON THIS PLAN IS (WILL BE) �` p ESS/ / �i GUY WIRE / I \ � \�` I \ DESIGNED TO REDUCE THE POST-DEVELOPMENT 1-YR, 24 HOUR STORM EVENT TO �ti9 PRE-DEVELOPMENT RATES. F_ _ SEAL o 10727 P.E. SIGNATURE 00 ZO p=� LNG I DATE AUGUST 19, 2024 CONSTRUCTION SEQUENCE W W W W 1. OBTAIN GRADING PERMIT 2. INSTALL EROSION CONTROL MEASURES AS SHOWN ON EROSION CONTROL PLAN. / ��\��• / / W y W / W W y W I \ \ 1 y W 3. COMPLETE GRADING FOR WET POND. POND WILL FUNCTION AS SKIMMER BASIN DURING CONSTRUCTION. \ \ 4. AFTER COMPLETION OF CONSTRUCTION, REGRADE WET POND TO DESIGN STANDARDS, REMOVING ANY DEPOSITED SEDIMENT. SEED DISTURBED AREAS AND SEED VEGETATIVE SHELF. W�W W / WSW o I I 1 \I 5. AFTER STABILIZATION OF DISTURBED AREAS, REMOVE _ SURROUNDING EROSION CONTROL DEVICES. O \OI I I\/ 6. COMPLETE AS-BUILT OF WET POND. / \ VEGETATED SHELF. w — 6 MIN. WIDTH W W o — MAX SLOPE: 6H 1 V / — VEGATATION: INV OUT = 942.00 MIN. 3 DIVERSE, Z7 W ©�-�W , \ HERBACEOUS, NATIVE SPECIES _ PTI 3 — 50 PLANTS PER 200 SF OF SHELF ' RIPRAP DIS. PAD POND RISER WZ TRASH RACK / ANTI—VORTEX DEVICE W = g CREST = 945.0 MIN. 10' CLASS B RIPRAP 2" ORIFICE W/ 7 TEE = 943.7 x7> ANTI—SEEP M AUNT• gE�l � I \ I — 9470 �o / J 1 .5" ORIFICE W/ TEE — 942.0 RIPRAP DIS. PAD — 6 DEWATERING VALVE 935.0 COLLAR L = 18' / 24" STORM OUT = 933.0 W = 9' 941 .5/ 100—YEAR ELEV = 94578 CLASS B RIPRAP/ 36' STORM . ORM 5 WIDTH FOREBAY / WQ VOLUME = 942.0-943.7 939.0 li PERM POOL ELEV = 936.0-942.0 938.5 VEGETATED SHELF = 941 .0— 942.0 24" STORM ) _ SEDIMENT STORAGE = 935.0-936.0 �— SED STORAGE 938.0 777o�ooG�oGo��oo WET POND 2 J1 1" = 20' 1 KEY TRENCH TO BE WET DETENTION POND DETAIL 5� EXCAVATED TO STABLE POST-CONSTRUCTION MAINTENANCE NTS SUB—SOIL; FILLED WITH 1. IMMEDIATELY AFTER THE WET POND IS ESTABLISHED, THE APPROVED MATERIAL & PLANTS ON THE VEGETATED SHELF AND PERIMETER OF THE COMPACTED TO 95% STD. BASIN WILL BE WATERED TWICE WEEKLY IF NEEDED, UNTIL THE PLANTS BECOME ESTABLISHED (COMMONLY SIX WEEKS). PROCTOR, MIN. 5' DEPTH. 2. NO PORTION OF THE WET POND WILL BE FERTILIZED AFTER THE FIRST INITIAL FERTILIZATION THAT IS REQUIRED TO ESTABLISH THE PLANTS ON THE VEGETATED SHELF. 3. STABLE GROUNDCOVER WILL BE MAINTAINED IN THE DRAINAGE AREA TO REDUCE THE SEDIMENT LOAD TO THE WET POND. w 4. IF THE POND MUST BE DRAINED FOR AN EMERGENCY OR TO PERFORM MAINTENANCE, THE FLUSHING OF SEDIMENT THROUGH THE EMERGENCY DRAIN WILL BE MINIMIZED AS MUCH AS POSSIBLE. LANDSCAPE PLAN 5. ONCE A YEAR, A DAM SAFETY EXPERT SHOULD INSPECT THE EMBANKMENT. VEGETATED SHELF w 6. THE MEASURING DEVICE USED TO DETERMINE THE SEDIMENT o ELEVATION SHALL BE SUCH THAT IT WILL GIVE AN ACCURATE VEGETATED SHELF (PLAN VIEW) W W W W of DEPTH READING AND NOT READILY PENETRATE INTO W W W W IZ ACCUMULATED SEDIMENTS. TOTAL AREA = 1430 SQFT z 120 - WHITE TURTLEHEAD (1-QT) PRELIMINARY — NOT FOR CONSTRUCTION w 119 - SCARLET ROSEMALLOW (1-QT)*, WET POND #2 DETAIL SHEET Q 119 - GREAT BLUE LOBELIA (1-QT) CONSTRUCTION PLANS c� DAM STRUCTURE (FRONT AND BACK) J NON-CLUMPING, TURF GRASS - HYBRID BERMUDA RESERVE AT OLD HOLLOW °' YP WALKERTOWN LLC ,,,,.III...... a_ 4F • '• • '• • '• • '• \N CARO4 ., OLD HOLLOW RD. (NC-66) FESS/p /�[,�'., KERNERSVILLE TOWNSHIP 0 6' . ,. . ,. . ,. . ,. . ,. . ,. 2 Quo by G FORSYTH COUNTY, NORTH CAROLI N A 0 of 50727 < DATE: 2024-03-08 SCALE: NOTED - - - SHEET: 10 OF 20 F�GINEE HUGH CREED ASSOCIATES, INC., P.A. o 2, TYPICAL VEGETATED SHELF ,,''��•S,z;,,� P''���, CONSULTING ENGINEERS 8c LAND SURVEYORS PLANTING PLAN OWNER DEVELOPER: N � �, � YP WALKERTOWN, LLC 3410 OWLS ROOST RD. P.O. BOX 9623 PHONE: (336) 275-9826 I NTS GREENSBORO, NC 27410 i o �. 1306 W. WENDOVER AVE. OR (336) 275-8084 Na_ C/O ROBIN YAUN GREENSBORO, N.C. 27408 FIRM LICENSE #C-0551 o .. CO AUGUST 19, 2024 ROBINC�?CANDRBUILDERSNC.COM E—MAIL: HCA@HUGHCREEDASSOCIATES.COM CN (336) 669-7651 x