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Home My WebLink AboutSW5221101_Plansheet C-11 - SCM Detail_20221117 01 LO x (Pump Station) / / 10INV 36"PESI422.1 / // � / Q O U L _ -x- x 430 4 35- - - - - _ W N W 43 \� � N / � \ • COQ / / 43 TOP OF POND NORTH AMERICAN GREEN SC250 TURN 43 �F D U �, ARX \ REINFORCEMENT SPILLWAY MAT � Z/ \\ 434 EMERGENCY WEIR / /\\/ \\ y i\\i i N 1 \ - - - - 437 436 � - - - - - - 43 434- / ` OQ 424 /\ 436_ ---437_438 - _ - -ANTI-SEEP COLLACL R i PRO NORTH AMERICAN GREEN SC250 O TURF REINFORCEMENT SPILLWAY MAT EMERGENCY WEIR CROSS SECTION . 10 (NOT TO SCALE) Q v PRO 20'WIDE EMERGENCY 0 � OVERFLOW EIR ELEVATION 434 c'4' 0 ROCK DAM \��` AROUND r o DRAIN PIPE Lu o d ��1 , a. rn PROPOSED WET ROND / EXTEND VALVE HANDLE PERMANENT POOL 429 m TRASH RACK a / BORING SPD#1 TOP OF AQUATIC SHELF 430 SHWT ELEV.<420.00 SEE REPORT BY JOHN R. DAVIS,JR. PERMANENT POOL 429 / PRO PO D-SEE S QUALITY n \ \ C-11 FOR POND M - - M DETAILS / 4I0` v / 433.5-TOP \ N BORING SPD#2 � C, SHWT ELEV.<420.00 6'WIDE AQUATIC SHELF / 100-YR STORM-433.5 SEE REPORT BY JOHN R. / / O M I M DAVIS,JR. - > 10-YR STORM-430.87 Q�5/ \\ D 1-YR STORM-429.88 l PROPO D RIP-RAP LINED 4 �Q 90°V-NOTCH WEIR 430.65 O a� / / / SPILLW Y CLASS B 18" 429-INVERT 1.5"WATER THICK-TOP OF RIP RAP QUALITY ORIFICE `3 / ON BER :ELEVATION 430 - - - - N 3 6'AQUATIC SHELF / / /\ o 4g - Marshall W. Wiggins, Sarah H. Wiggins \ =43 DeedPBoo8 Page Be 764 Zone: General Business 3� 42 - 434 440 - - - - NOTES \\ y� _ �� 43 1. CONTRACTOR SHALL SUBMIT SHOP / �\ \ PRO C. 0 Foa€BAv DRAWINGS, PRIOR TO INSTALLATION, E a PRO Jg'1_ Tc aa3.6� TO MACK GAY ASSOCIATES, PA FOR RIM 444.36 IN ERT IN 30"434.00 v3� i i - - - INVERT IN 434.42 V OUT 42"431.00 PRO 24"FES INV 429 PRO - 436 INVOUT434.32 - - °lo P-8 435 4 44\ - - 1 PRO 42"FES INVERT 428.00_ �F2q 3 APPROVAL. / i. "=.�==..4�6' 44 1Q1 RGP . ,y i _ANTI-SEEP CONCRETE WALLS P-2 32.3LF 30" - Q- 'ANTI-SEEP COLLAR RCP @ 0.99% q31' STD / P-3 96 30"RC?'{i?1.04% _ - - =-- - - 4 -�i �.J �,J 446-. 443- 10-WW_DE-MINJ' AENANCE ACCESS - - / / / a 44 / 423-36"INVERT OUT y \ \ o C _ /4� /-�44 � / � / /� - � � / / � � � , \/\\\ a ?J �/ / \ \ /9 \ / / / / / ROUTE EX FM UNDER�� N / / / / / \ \ / / / PRO PIPE.MINIMUM 423 BOTTOM OF SEDIMENT STORAGE / // 18"CLEARANCE 1- O a CONCRETE \4Q19oBOTTOM OF BOX oC8"MINIMUM COMPACTED#57 STONE _ \\/ � ca o ! i __ _ ❑ 41 a aoa aoa ,C 450- 4g \\ I \\\i�- c�a � \\\\\/\i//�\\\�\\\\/\�/i\\\�\\\\/\i \\\�\\ /\ p Q 30' 0 15' 30' > C OUTLET STRUCTURE DETAIL a Z SCALE 1 inch = 30 ft (NOT TO SCALE) O >� 0 Cd V o CAP � N STRUCTURE � \VV// O L � � .0 N U C o� Cd PERMANENT POOL 4"PVC77 - - - Q W E PLANTING NOTES: � m 1. DO NOT PLANT WEEPING LOVE GRASS,TREES OR WOODY SHRUBS ON THE VEGETATIVE SIDE SLOPES Q U 2. DO NOT PLANT ANY TREES WITHIN 10 FEET OF INLET OR o OUTLET PIPES 00 3. TREES WITH WATER SEEKING ROOTS SUCH AS WEEPINGLU WILLOWS AND POPLARS SHOULD BE AVOIDED WITHIN 50 FEET \' OF PIPES OR MANMADE STRUCTURES. N 4. EVERGREEN TREES WHICH PRODUCE RELATIVELY LITTLE 1.75"WATER QUALITY LEAF-FALL ARE PREFERRED IN AREAS DRAINING TO DETENION ORIFICE CUT INTO CAP AREAS. 5. TREES SHOULD BE SET BACK SO THAT BRANCHES DO NOT EXTEND VALVE HANDLE EXTEND OVER THE PERMANENT POOL. TOP OF POND 435 TOP OF POND 435 PES INCLUDED THE DAM STRUCTURE AND WATER QUALITY ORIFICE DETAIL 6 FRONTALL /BACK ND OSIDE SLOPES SHALL BE VEGETATED WITH A U 433.54 MAXIMUM STAGE-100YR STORM - (NOT OT TO SCALE) NON-CLUMPING TURF GRASS SUCH AS CENTIPEDE OR - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - BERMUDA OR TALL FESCUE. 4.0' 7. MINIMUM 50 PLANTS PER 200SF OF VEGETATED SHELF.3232 �� ,(1�>CAR0` SF OF VEGETATED SHELF REQUIRES A MINIMUM OF 810 III 429.46 TEMPORARY POOL RIP-RAP LINED SPILLWAY \ PLANTS TO BE PLANTED ON THE AQUATIC SHELF.MINIMUM OF _ p + 430 TOPS'WIDE AgUATIC HI L! \� - 3 DIVERSE SPECIES OF HERBACEOUS PLANTS.THE �4L �CAr = o 429 PERMANENT POOL 429 PERMANENT POOL-BOTTOM OF AQUATIC SHELF TI ITI I FOLLOWING SPECIES SHALL BE USED IN EQUAL QUANTITIES: - - SEAL 0 III III III III III III III III III 7.1. ASCLEPIAS INCARNATA(SWAMP MILKWEED) i j D3sea8 - 7.2. EUPATORIADELPHUS FISTULOSUS(JOE PYE WEED) -III Is_�-� III, . I I III III III II I III � I ~ fi 7.3. HIBISCUS COCCINEUS(SCARLET ROSE MALLOW) `� o 426 BOTTOM OF FOREBAY _ _ \P Q - • BACK OF OUTLET STRUCTURE LOCATED AT 8. SPACING SHOULD BE APPROXIMATELY 24"TO 36"ON 6"DIP DRAIN PIPE �Lp� TOE OF 6'AQUATIC SHELF MAINTENANCE NOTES: CENTERS;YIELDING COMPLETE COVERAGE IN 1-2 YEARS ' C;,\- � 1. IMMEDIATELY AFTER THE WET DETENTION BASIN IS ESTABLISHED, 9. ON THE TOPS OF THE BERMS AND ON THE EXTERIOR SLOPES III 425 BOTTOM OF SEDIMENT STORAGE DA ELBOW TURNED UP-M AROUND END OF PIPE INSTALL ROCK ti'\' THE PLANTS ON THE VEGETATED SHELF AND PERIMETER OF THE OF CONTAINMENT BERMS,MAINTAIN TURF GRASS IN ACCESS III III III III III III �pFS - - 424 BOTTOM OF POND DA - III BASIN SHOULD BE WATERED TWICE WEEKLY IF NEEDED, UNTIL AREAS;CENTIPEDE IS RECOMMENDED I�-I�-2022 IIIIIIIIIIII-III- -III_ 36"RCP OUTLET PIPE AT.9% PLANTS BECOME ESTABLISHED(COMMONLY SIX WEEKS). 10. WILDFLOWERS, NATIVE GRASSES AND GROUND COVERS II -III 423 BOTTOM OF SEDIMENT STORAGE 2. NO PORTION OF THE WET DETENTION POND SHOULD BE FERTILIZED SHOULD BE SELECTED TO MINIMIZE MOWING III_ AFTER THE FIRST INITIAL FERTILIZATION THAT IS REQUIRED TO Horz. Scale: see inset III, III III III III III III III III III III III III III III III III III ANTI-SEEP COLLAR ESTABLISH THE PLANTS ON THE VEGETATED SHELF. NOTES: Vertical Scale: n/a U III 3. STABLE GROUND COVER SHOULD BE MAINTAINED IN THE DRAINAGE INVERT 423 1. CONTRACTOR TO OVER EXCAVATE POND 20"TO PROVIDE 12"OF -III- AREA TO REDUCE THE SEDIMENT LOAD TO THE WET DETENTION BASIN. IMPERMEABLE CLAY LINER WITH AN INFILTRATION RATE OF LESS Date:September 21, 2022 THAN 0.01 INCHES PER HOUR.CLAY LINER SHALL EXTEND FROM THE 4. IF THE BASIN MUST BE DRAINED FOR AN EMERGENCY OR TO BOTTOM OF THE POND UP TO THE 430 ELEVATION Project No.: P200160 FILL OUTLET STRUCTURE PERFORM MAINTENANCE,THE FLUSHING OF SEDIMENT SHOULD BE WITH CONCRETE MINIMIZED. 2. A LICENSED SOIL SCIENTIST MUST CERTIFY THAT THE CLAY LINER IS WATER QUALITY POND CROSS SECTION INSTALLED CORRECTLY AND THE IN PLACE INFILTRATION RATE IS Drawn by: PRJ N (NOT TO SCALE) LESS THAN 0.01 INCHES PER HOUR Checked by: Sheet: C-11 \