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Home My WebLink AboutSW1140701_Details_201407306" CONCRETE TOP NTH MANHOLE RING AND COVER CAST IN UNLESS NOTED OTHERWISE MANHOLE RING AND COVER TO BE EXTENDED SO THAT ITS TOI IS FLUSH WITH PROPOSED GRADE AND/OR PAVING 6" CONCRETE TOP WITH GRATE AND FRAME CAST IN UNLESS NOTED OTHERWISE GRATE AND FRAME FOR THIS TOP TO BE 24"x24" ("NEENAH R3339A') OR ("U.S. FOUNDRY 4190-6259) OR APPROVED EQUAL; VERIFY TRAFFIC LOAD REQUIREMENTS ON ALL GRAT AND FRAME ASSEMBLIES HEAVY r ' FRAME' UNLESS NOTED OTHERWISE GRATE AND FRAME ASSEMBLY FOR THIS TOP SHALL BE 24"x36" ("NEENAH R3233D") OR ("U.S. FOUNDRY 5181-6420") OR APPROVED EQUAL CONFORMING TO N.C.D.O.T. ROADWAY STANDARDS 840.03 NOTE: STRUCTURES SPECIFIED TO HAVE FLAT JUNCTION BOX (FJB) TOP WILL BE THE SAME TOP AS YARD INLET WITHOUT `E OPEN THROAT OF THE YARD INLET JUNCTION BOX TOP CATCH BASIN SCHEDULE SYMBOL-(JB) RIM = TOP OF COVER GRATES PLACED IN PEDESTRIAN TRAFFIC AREAS TO SHALL BE ORIENTED WITH OPEN SLOTS RUNNING PERPENDICULAR TO TRAFFIC FLOW (TYP. ALL GRATES) FLAT CATCH BASIN TOP CATCH BASIN SCHEDULE SYMBOL-(FCB) RIM = TOP EDGE OF GRATE CURB INLET TOP CATCH BASIN SCHEDULE SYMBOL -(CI) RIM=TOP OF GRATE DIRECTLY UNDER HOOD OPENING NOTE: MIN. 3000 PSI CONCRETE REQUIRED THROUGHOUT. 6" SOLID CONCRETE TOP; WIDTH AND LENGTH TO MATCH CATCH BASIN CAST IN 2 LIFTING "EYES" NOT TO BE REMOVED UNLESS OTHERWISE NOTED �4000 PSI CONCRETE TYPICAL ALL TOPS SOLID TOP CATCH BASIN SCHEDULE SYMBOL-(ST) RIM = TOP OF COVER CONCRETE TOP WITH GRATE AND FRAME CATCH BASIN TOP CATCH BASIN SCHEDULE SYMBOL -(CB) RIM TOP EDGE OF GRATE YARD INLET TOP CATCH BASIN SCHEDULE SYMBOL-(YI) RIM=BOTTOM OF THROAT OPENING CATCH BASIN TOP DETAILS REVISION DATE - OCTOBER 22, 2010 DRAINAGE STRUCTURE TOP VARIES WITH APPLICATION, SEE CATCH BASIN SCHEDULE (VERIFY TRAFFIC LOAD REQUIREMENT FOR EACH TOP) !< I Y ' I I CONCRETE CATCH BASIN EXTENSION RISER; LENGTH AND ' WIDTH TO MATCH BASIN HEIGHT VARIES WITH PROPOSED' GRADE (SEE CATCH BASIN SCHEDULE) I I PRE -CAST CONCRETE CATCH BASIN; LENGTH, WIDTH AND HEIGHT VARIES BY MANUFACTURER AND APPLICATION; SEE CATCH BASIN SCHEDULE AND VERIFY WITH SUPPLIER 5"-8" WALL THICKNESS WITH KNOCKOUT PANEL NO PORTION OF STRUCTURE SHALL BE REMOVED, DAMAGED OR OTHERWISE ALTERED EXCEPT THOSE AREAS DESIGNATED AS KNOCKOUT PANELS INLET 1 (3) No. 4 REBAR___._1 6" KNOCKOUT PANELy. (TYP. EACH SIDE) *•'"- i i B; INLET?-- - ti CONCREE INVERT INSTALLED AT A CONSTANT SLOPE FROM INLET TO OUTLET g..,. 6" i � I I � I OUTLET SECTION A (PLAN) i 6" UNLESS NOTED OTHERWISE GRATE AND FRAME FOR THIS TOP TO BE 24"x24" ("NEENAH R-3339A") OR (U.S. FOUNDRY 4190-6259) OR APPROVED EQUAL; VERIFY TRAFFIC LOAD REQUIREMENTS ON ALL GRATE AND FRAME ASSEMBLIES YARD INLET SHALL RECEIVE FLAT TOP NTH MANHOLE RING AND COVER CAST IN FLUSH �USE PRE CAST BOX, 4" AND 2" CONCRETE BLOCK, OR BRICK TO ELEVATE TOP TO ACHIEVE THE DESIRED THROAT OPENING �- 6"-8" THROAT OPENING ALL FOUR SIDES UNLESS NOTED OTHERWISE ----- CATCH BASIN TOP F------— -(SEE SCHEDULE FOR TYPE) L-------- - - - - - BASIN RISER it HEIGHT VARIES ,; . a* 7 •' (2) No. 4 REBAR KNOCKOUT PANEL r (TYP. EACH SIDE) i A i A CATCH BASIN HEIGHT \I APPROVED STEPS REQUIRED VARIES BY PIPE SIZE PIPE TO BE FLUSH WITH INLET / i' FOR STRUCTURES OVER AND MANUFACTURER INSIDE WALL OF BASIN ; r, 3'-6" IN DEPTH, 12' O.C. AND GROUTED SMOOTH �;• No. 4 6" O.C. REBAR 0EACH J! DIRECTION -- -•- PROPOSED PIPE INERT = BOTTOM OF 300 PSI CONCRETE TO FORM INVERT; PIPE AT FLOW LINE PROVIDE CONSTANT SLOPE FROM ALL INLETS TO OUTLET, 12" OF #57 STONE SECTION B MAY BE REQUIRED FOR POOR SOIL AND/OR WET CONDITIONS; CONTRACTOR MUST VERIFY NTH ENGINEER BEFORE PLACING BOX PRE -CAST CATCH BASIN REVISION DATE - OCTOBER 22, 2010 EXPANSION JOINT (BOTH SIDES) LOPE PROP. ASPHALT PAVEMENT PROP. PREFORMED SLOPE CHANNEL -MIN; 0.60% 0.60% SLOPE 6" 12" 6" loll SLOPE _ d a a d v a v a 1d •I 1d v J LOCK. DOWI l LOCK INSET C d v d LOCK TOGC 41 v�d a ANCHOR RI 1 a v I POLYDRAIN TRENCH DRAIN DETAIL SLOPE ACCESS AISLE TO TRENCH DRAIN PROP. ASPHALT PAVEMENT - #4 BARS AT 12" O.C. EACH WAY MIN. 6" THICK CRUSHER RUN STONE BASE OVER COMPACTED SUBGRADE NOT TO SCALE (MODIFIED FOR THIS PROJECT) SIDEWALL EXTENSION MAY BE REQUIRED TO OBTAIN PROPER TRENCH DRAIN DEPTHS SLOPE TRENCH DRAIN FROM HP IN THE CENTER OF EACH DRAIN RUN IN EACH DIRECTION P we�zeU_ (n �=Q! p ` a Z ZO Q J C.)O O U �V O Z(WZ 2 ~2�z O cn O3: w 0 U O w V w 2 a- Z O m cm I m I I rn 3 N p y< W W 2 m m 1 > cc z z m z Z w U_` to 0 —U' U) Z m I- o U cn W 0 u- J SHEET C=502 NO. I DATE I BY REVISION DESCRIPTION SEED SIDE SLOPES 6" CLEANOUT PER SEEDING SPEC. CAP AT MIN. 8" ABOVE w N SOD z a LJ 1 GRASS SOD N g _ TOP LAYER 04 r PROVIDE FILTER FABRIC BETWEEN SOIL MEDIA N AND STONE >:<:'i:: fi EXTEND FILTER FABRIC 1' TO 2' BEYOND UNDERDRAIN PIPE ALONG TOP OF GRAVEL BED EXISTING SUBGRADE #4 BAR- 12" 0. C BOTH WAYS N PRECAST BOX 36" SQUARE a a ° 4 a 6' SQUARE ■ON _l._.I a ° ANCHOR BOX TO CONC. ...... BASE. TYP. ALL SIDES ONCRETE BASE CONCRETE BASE AT RISER DETAIL NOT TO SCALE o 6" CLEANOUT GRASS SOD TOP ELEV ELEV d F TOP LAYER EXISTING = 2364.00 SOLID PIPE, GRADE 2364.00 PRECAST CONC. X w TYP CAP AT ELEV. = 2361.0 RISER SEE DETAIL MIN) 8" ABOVE THIS SHEET GRADE _ ..... ---- F2 FILL SOIL MEDIA SEE NOTE N0. 2 _--- �` ----------------- -- / -------ELEV. = 2361.00 --------ELEV. = 2359.00 -------ELEV. = 2358.00 _LXIS IING AROUND UNDERDRAIN 18" OUTLET PIPE SUBGRADE PIPING ACROSS ENTIRE (SEE PLAN FOR BOTTOM OF SOIL MEDIA PIPE ORIENTATION) SECTION NOTE: THE BIORETENTION CELL SHALL HAVE A MINIMUM SURFACE AREA OF 3,384 SQ.FT. AT ELEV. 2361 (SEE PLAN FOR LAYOUT). THE PONDING DEPTH SHALL BE NO GREATER THAN 12". OUTLET CONTROL STRUCTURE 3' x 3' PRECAST CONCRETE RISER WITH SOLID TOP WITH MANHOLE RING AND COVER FOR ACCESS, BRICK UP CORNERS OF TOP SLAB 6" HIGH OPENINGS ON ALL FOUR SIDES GRASS SOD ` TOP LAYER ELEV. = 2361.0 --\ TOP OF STRUCTURE ELEV. = 2362.00 - - - - - - ELEV. = 2361.00 ELEV. = 2359.00-------- ELEV. = 2358.00--------- 2jFIL/L S4 MEDIA SEE/NO'fE NQ< Z 6" UNDERDRAIN INTO RISER - INVERT IN = 2358.25 6" MIN. WASHED STONE - OR OTHER SUITABLE MATERIAL TOP OF OPENINGS ALL FOUR SIDES ELEV. = 2362.5 ---�12" MAX. PONDING DEPTH RISER DETAIL 6" PERFORATED PVC SDR 35 W/ END CAPS 'END OF RISER EMBEDDED IN CONCRETE 12" MIN. (SEE DETAIL THIS SHEET) 18' HDPE OUTLET PIPE W/ 10 PSI JOINTS 0 5.14% INV. OUT AT BOTTOM OF OVERFLOW STRUCTURE = 2356.50. OUTLET TO EXISTING STORM DRAINAGE SYSTEM (SEE PLANS) BIORETENTION FACILITY DETAIL oT TO SCALE GEOTEXTILE FILTER FABRIC AT TOP OF #57 STONE \ \IT, V vi 1 \ \Ad \\;12" MARLE \ a � x\ `FLARED END SECTION" INV. OUT = 2361.22 1\ RIP RAP DISSIPATOR- LENGTH = 5' WIDTH AT END = 9111, 18" THICK CLASS B STONE i 1 \ Q I G0 d \ 7 .4 ' 00 12" \�A L 6" PERFORATED PVC UNDERDRAIN _ PIPE SYSTEM w/ 6" CLEANOUTS AS 237 SHOWN. CONNECT 6" UNDERDRAIN /SYSTEM TO OVERFLOW STRUCTURE (SEE DETAIL THIS SHEET) 2" M P NOTES: 1. TOP LAYER OF BIORETENTION CELL SHALL BE GRASSED USING SOD (NOT SEEDED THE SOD SHALL NOTBE GROWN FROM SOIL THAT HAS AN IMPERMEABLE LAYER (CLAY). 2. PLANTING MEDIUM FOR BIORETENTION FACILITY SHALL CONSISTS OF A HOMOGENOUS SOIL MIX OF 85-88 PERCENT SAND; 8 TO 12 PERCENT FINES AND 3 TO 5 PERCENT ORGANIC MATTER. THE DEPTH OF THE FILL SOIL SHALL BE 2'. 3. SEE OPERATION AND MAINTENANCE AGREEMENT FOR ONGOING MAINTENANCE OF BIORETENTION AREA. 4. CONTINUE TO USE TEMPORARY SEDIMENT TRAP FOR EROSION CONTROL UNTIL THE ENTIRE AREA IS STABILIZED. THE TRAP SHALL BE COMPLETELY CLEANED OUT PRIOR TO CHANGING OVER TO THE BIORETENTION CELL. 5. CONTRACTOR SHALL POST A CONSPICUOUS SIGN STATING WHO IS RESPONSIBLE FOR THE REQUIRED MAINTENANCE AND ANNUAL INSPECTION OF THE BIORETENTION FACILITY. 6. THE CONTRACTOR SHALL PROVIDE AS-BUILTS OF THE BIORETENTION FACILITY TO THE ENGINEER. THE AS-BUILTS SHALL BE DONE BY A LICENSED SURVEYOR. U wzw w z w Flz� �Iz� N Uz" 1�1 N Voza O � Z z �z� Wa WW z � o A"i z� W� PLAN Z 0 0 \ \ \x\ h JIC O 0 v \ , Z� W UJ X F-ca Q _ \ T1367.50' 0 0 1 0- 0 CO / Z C� CO / CO Or' cot' 1 �� / STORMWATER PROP. EASEMENT FOR/J M 3 1 Co /-BIORETENTION AREA — RECORDABLE PLAT o 3 11 MAP WITH STORMWATER EASEMENT & > m m W W g ACCESS WILL BE PROVIDED PRIOR TO ' w } 0:X 2IL C0�' PROJECT CLOSEOUT ,�� p Z m ZQ m 1 / Z w 2 0 S Zo p Q w Q w O W "ADco �ioo�o�� r' OVERFLOW STRUCTURE 3' x 3' PRECAST BOX WITH 18" HDPE OUTLET PIPE. INV. �� V) 11 OUT OF BOX = 2356.50 (SEE DETAIL THIS SHEET) J b CBOA Q O OA, / �— / W W G R A' S S / GRASSED SURFACE AREA = 3,384 SQ. FT / Z / (CONTOUR ELEVATION 2361.0) ,' / Q / SOD TO BE USED IN THIS AREA. SEE / / DETAIL THIS SHEET FOR BIORETENTION CELL CONSTRUCTION / SHEET GRAPHIC SCALE 1 INCH = 10 FEET C=505 NO. DATE BY REVISION DESCRIPTION