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HomeMy WebLinkAbout5. 2022-04-13_Grading Plan with Additional Tree Removal OverlaySTORMWATER CONTROL MEASURE CCC H H H VA N H HHHHH VAN H H HVA N MI D D L E S O U N D L O O P R O A D 6 0 ' P U B L I C R / W 28 6 . 8 0 ' ( G R I D ) UPFEC UP FEC FEC FECFECFECFECFEC 3 5 35 35 33 3 3 33 33 34 3 4 34 34 36 37 383 8 25 30 26272829 3132 32 33 33 25 30 2122232426272829 31 32 33 30 29 29 31 32 33 28 27 26 25 24 23 24 2 9 3 1 32 3 2 30 2 7 2 8 2 9 3 1 2 7 28 27 3 0 3 1 3 2 3434 33 3 4 3 3 32 33 31 3 1 3 2 3 3 3 2 3 3 3 3 31 31 30 3 0 2 7 2 8 2 9 3 1 32 33 34 30 28 29 3232 33 34 3 5 3 6 3 7 3 8 38 37 3 3 3 3 32 33 32 33 2 7 2 6 2 3 2 2 TREE SAVE AREA (TYP.) PROPOSED DIVERSION DITCH 24 " ( 3 1 ' L F ) 24" ( 1 0 8 ' L F ) 24 " ( 5 6 ' L F ) 24" (98'LF) 24 " ( 2 3 ' L F ) 24" (75'L F ) 30" (62'LF) 24 " ( 4 7 ' L F ) 24 " ( 9 4 ' L F ) 24 " ( 1 6 ' L F ) 3 0 " ( 3 4 ' L F ) 12 " ( 1 9 ' L F ) 12 " ( 1 2 9 ' L F ) 12 " ( 4 9 ' L F ) 12" (66'LF)12" (50'LF) 12 " ( 1 0 ' L F ) 12" (41'LF) 12" (63'LF) 12" (36 ' L F ) 12" (276'LF) 1 5 " ( 3 5 ' L F ) 24 " ( 1 1 5 ' L F ) 24" (23'LF) 24 " ( 2 8 ' L F ) 24 " ( 4 7 ' L F ) 24" (48'L F ) 24" ( 4 7 ' L F ) 18" (47'LF) A9-CI RIM=35.12' INV OUT SE=28.87' A7-JB RIM=34.10' INV IN SW=28.18' INV IN NW=28.18' INV OUT SE=28.18' G8-CO RIM=33.97' INV OUT N=29.75' D4-YD RIM=33.45' INV OUT NE=29.38' F1-CO RIM=33.62' INV IN NW=29.02' INV OUT SE=29.02' D3-CO RIM=33.61' INV IN SW=29.03' INV IN NE=29.03' INV OUT SE=29.03' B4-YD RIM=33.55' INV OUT SW=28.79' A6-CI RIM=33.69' INV IN NW=27.90' INV OUT NE=27.90' G1-CO RIM=33.49' INV IN NE=26.79' INV OUT S=26.79' B1-CI RIM=33.52' INV OUT SE=28.40' INV OUT NW=28.40' F2-CO RIM=33.54' INV OUT SE=29.67' D5-YD RIM=33.50' INV OUT SW=29.28' B2-CO RIM=33.70' INV IN SE=28.46' INV IN NE=28.46' INV OUT SW=28.46' G7-CO RIM=33.18' INV IN S=29.57' INV OUT NE=29.57' G3-CO RIM=33.50' INV IN NW=27.17' INV OUT SE=27.17' B3-YD RIM=34.47' INV IN NE=28.66' A2-JB RIM=33.33' INV IN SW=25.91' INV IN NW=28.92' INV OUT E=24.83' G2-CO RIM=33.16' INV IN NW=26.91' INV OUT SW=26.91' G4-CO RIM=33.47' INV IN W=27.74' INV OUT SE=27.74' A5-CI RIM=32.86' INV IN SW=27.41' INV OUT SE=27.41' A8-CI RIM=33.04' INV IN NW=28.70' INV OUT NE=28.70' E2-CI RIM=32.94' INV OUT NE=27.74' A4-CI RIM=32.78' INV IN NW=27.28' INV IN S=27.28' INV OUT NE=27.28' D2-CI RIM=32.80' INV IN NW=28.78' INV OUT SE=27.09' E1-CI RIM=32.69' INV IN SW=27.51' INV OUT N=27.51' G6-CO RIM=30.80' INV IN SW=28.19' INV OUT E=28.19' D1-CI RIM=32.31' INV IN NW=26.60' INV OUT SE=26.60' A3-CI RIM=32.31' INV IN SW=26.53' INV IN NW=26.53' INV OUT NE=26.53' A1-FE INV.=24.00 H2-OS RIM=29.21' INV OUT NE=26.25' H1-FES INV.=26.02 TC 34.97' BC 34.47' EP 34.41' TC 34.09' BC 33.59' EP 33.53' TC 34.55' BC 34.05' EP 33.99' TC 34.64' BC 34.14' EP 34.08' TC 33.98' BC 33.48' EP 33.42' TC 34.65' BC 34.15' EP 34.09' TC 34.63' BC 34.13' EP 34.07' TC 34.05' BC 33.55' EP 33.49' TC 33.82' BC 33.32' EP 33.26' TC 35.35' BC 34.85' EP 34.79' TC 33.62' BC 33.12' EP 33.06' TC 33.43' BC 32.93' EP 32.87' TC 33.13' BC 32.63' EP 32.57' TC 33.47' BC 32.97' EP 32.91' FS 33.70' FS 33.80' FS 33.65' FS 33.64' FS 33.74' FS 33.74' FS 33.93' FS 34.13' FG 34.16' FG 34.13' FG 33.75' FG 33.75'FG 33.75' FG 33.75' FG 33.75' DOWNSPOUT SPLASH BLOCK (TYP.) DOWNSPOUT SPLASH BLOCK (TYP.) ROOF LEADER DOWNSPOUT CONNECTION TO ROOF DRAINAGE YARD INLET DRAINAGE LINE (TYP.) CONNECTION TO MAIN ROOF LEADER LINE USING ADS INSERTA TEERECIEVING PIT LOD FROM DIRECTIONAL DRILL TC 33.47' BC 32.97' EP 33.03' TC 33.85' BC 33.35' EP 33.41' TC 35.19' BC 34.69' EP 34.75' TC 34.09' BC 33.59' EP 33.65'TC 34.20' BC 33.70' EP 33.64' TC 34.11' BC 33.61' EP 33.55' TC 34.06' BC 33.56' EP 33.50' TC 34.01' BC 33.51' EP 33.45' TC 33.51' BC 33.01' TC 33.43' BC 32.93' EP 32.99' TC 33.54' BC 33.04' EP 32.98' TC 33.48' BC 32.98' EP 32.92' TC 33.49' BC 32.99' FC 33.24' TC 33.56' BC 33.06' EP 33.00' TC 33.32' BC 32.82' EP 32.76' TC 33.33' BC 32.83' EP 32.77' TC 33.08' BC 32.58' EP 32.52' TC 33.21' BC 32.71' EP 32.65' TC 33.33' BC 32.83' EP 32.77' TC 33.66' BC 33.16' EP 33.22' TC 33.95' BC 33.45' EP 33.51' TC 34.07' BC 33.57' EP 33.63' TC 34.84' BC 34.34' EP 34.28' TC 34.94' BC 34.44' EP 34.38' TC 35.31' BC 34.81' EP 34.75' TC 34.07' BC 33.57' EP 33.51' TC 35.49' BC 34.99' EP 34.93' TC 37.16' BC 36.66' EP 36.60' TC 38.47' BC 37.97' EP 38.03' TC 38.56' BC 38.06' EP 38.00' TC 35.26' BC 34.76' EP 34.70'TC 34.36' BC 33.86' EP 33.80' TC 34.84' BC 34.34' EP 34.40' TC 33.54' BC 33.04' EP 32.98' TC 33.52' BC 33.02' EP 32.96' TC 33.52' BC 33.02' EP 33.08' TC 33.64' BC 33.14' EP 33.20' TC 33.72' BC 33.22' EP 33.28'TC 33.60' BC 33.10' EP 33.16' TC 33.52' BC 33.02' EP 32.96' TC 33.19' BC 32.69' EP 32.63' TC 33.16' BC 32.66' EP 32.60' TC 33.29' BC 32.79' EP 32.73' TC 33.26' BC 32.76' EP 32.82' TC 33.24' BC 32.74' EP 32.80' TC 33.27' BC 32.77' EP 32.83' TC 33.30' BC 32.80' EP 32.86' TC 33.07' BC 32.57' EP 32.63' TC 33.01' BC 32.51' EP 32.57' TC 33.02' BC 32.52' EP 32.46' TC 33.00' BC 32.50' EP 32.56' TC 32.84' BC 32.34' EP 32.40'TC 32.83' BC 32.33' EP 32.39' TC 32.86' BC 32.36' EP 32.42' TC 32.88' BC 32.38' EP 32.44' TC 32.77' BC 32.27' EP 32.33' TC 34.54' BC 34.04' EP 33.98'TC 34.32' BC 33.82' EP 33.76' TC 34.09' BC 33.59' EP 33.53' TC 33.97' BC 33.47' EP 33.41' TC 34.07' BC 33.57' EP 33.51' TC 33.84' BC 33.34' EP 33.28'TC 33.72' BC 33.22' EP 33.16' TC 33.69' BC 33.19' EP 33.13' TC 34.01' BC 33.51' EP 33.45' TC 34.32' BC 33.82' EP 33.88' TC 33.34' BC 32.84' EP 32.78' TC 33.35' BC 32.85' EP 32.79' TC 33.71' BC 33.21' EP 33.15' TC 33.82' BC 33.32' EP 33.26' TC 33.81' BC 33.31' EP 33.25' TC 33.70' BC 33.20' EP 33.14' TC 35.95' BC 35.45' EP 35.39' ME 37.04' ME 37.18' ME 38.26' ME 36.91' TC 34.10' BC 33.60' EP 33.66' TC 33.99' BC 33.49' EP 33.43' FS 37.84' FS 38.04' FS 38.11' FS 34.17' FS 34.81' TC 33.73' BC 33.23' FC 33.20'FC 33.03' FS 33.65' FS 33.65' FFE: 34.25' FFE: 34.25' FFE: 34.25' TC 33.49' BC 32.99' FC 32.99' FC 32.99' TC 33.28' BC 32.78' FC 33.28' TC 33.95' BC 33.45' EP 33.39' (SEE SHEET C16.1) FC 33.59' FG 34.00' FS 34.22' FG 33.25' 3 4 3 3 33 32 33 32 33 32 34 35 31 32 33 33 33 34 35 34 33 FS 33.21' FS ???' FS ???' 2% MA X . 2% 2% MAX. FG 32.68' FG 33.37' 2% FS 33.21' FS 32.92' FS 32.90' FS 32.75' FS 32.51' FS 32.46' MAINTENANCE ACCESS EASEMENT MAINTENANCE ACCESS EASEMENT CONNECT AERATION DEVICE (NOT SHOWN) WITH A DRAIN LINE TO STORM DRAINAGE STRUCTURES AS INDICATED (TYP.) 4" SDR PVC TREE AERATION DEVICE DRAIN LINE (TYP.) CONNECT AERATION DEVICE (NOT SHOWN) WITH A DRAIN LINE TO STORM DRAINAGE STRUCTURES AS INDICATED (TYP.) 4" SDR PVC TREE AERATION DEVICE DRAIN LINE (TYP.) FS 34.23' FS 34.25'FS 34.10' FS 34.23' FS 34.12' FS 34.04' FS 33.68' FS 34.81' FS 34.14' FS 35.94' FS 36.12' FS 35.89' FS 35.71' FS 35.53' FS 35.80' FS 35.68' FS 35.96' FS 34.50' FS 34.41' FS 33.84' TC 33.83' BC 33.33' TC 33.66' BC 33.16' FS 33.63' FS 33.52' FS 33.66' FC 33.55' FS 33.71' FS 33.51' FS 34.20' FS 34.21' FS 33.61' FS 33.60' FS 33.55' FG 33.75' FG 33.04' FG 33.99' FG 33.75' FG 34.00' FG 33.75' FG 34.00' FG 34.47' FG 33.70' FG 33.72' FG 33.18' FG 32.11' FG 33.21' FG 32.29' FG 31.23' FG 32.30' FG 33.75' FG 33.92' FG 32.66' FG 31.66' FG 32.70' FG 32.47' FG 31.07' FG 32.48' FG 32.17' FG 32.17' FG 30.92' FG 32.32' FG 32.35' FS 34.19' FG 33.55' FG 33.25' FG 33.25' FG 31.00' FG 33.75' FG 33.75' FG 33.75' FG 33.75' FG 33.75' FG 33.75' FG 33.75' FG 33.75' FG 33.70'FG 33.18'FG 32.66'FG 32.29' G5-YD RIM=30.28' INV IN W=28.01' INV OUT E=28.01'1 5 " ( 5 4 ' L F ) FS 34.04' FG 32.87' FG 32.94' FG 32.71' FG 31.00' DESCRIPTIONS DATEREV.NO. REVISIONS SCALE HORIZONTAL: VERTICAL: DRAWING NUMBER REVISION SEAL STATUS: DRAWN PROJ. MGR. DESIGNED CHECKED DATE: MCE PROJ. # SEAL www.mckimcreed.com License: F-1222 243 North Front Street Phone: (910)343-1048, Fax: (910)251-8282 Wilmington, North Carolina 28401 I:\07921\0002\ENG\80-DRAWINGS\1_PRODUCTION_SHEETS\1_PLAN_SHEETS\2_WORKING_DWGS\C7.0 GRADING & DRAINAGE PLAN - OVERALL.DWG ---- 04/07/2022 15:38:16 LEGEND AND NOTES1SCALE: 1"= 30'GRADING & DRAINAGE PLAN2 THE RESIDENCE AT CANOPY POINTE 07921-0002 0 HKA/TRC/THL HKA/TRC/THL TRC/THL RMC 1" = 30' N/A 04/07/2022 C7.0 GRADING & DRAINAGE PLAN 0 SCALE: 1"=30' (Horiz.) 60'30'30' TRC REVIEW DRAWINGS 205, 209, 213 & 217 MIDDLE SOUND LOOP ROAD, WILMINGTON NC STORM DRAIN LINE STORM DRAIN CURB INLET (CI) STORM DRAIN JUNCTION BOX (JB) SYMBOLS LEGEND WATER LINE FIRE HYDRANT WATER VALVE WATER CROSSING WATER BLOW-OFF WATER TEE SANITARY SEWER SANITARY SEWER MANHOLE SANITARY SEWER CLEAN OUTCO STORM DRAIN MANHOLE (MH) WATER SERVICE SANITARY SEWER SERVICE FLARED END SECTION (FES) OUTLET STRUCTURE (OS) ABBREVIATIONS TC TOP OF CURB ELEVATION BC BACK OF CURB ELEVATION EP EDGE OF PAVEMENT ELEVATION FC FLUSH CURB CONDITION ELEVATION FG FINISHED GRADE ELEVATION FS FINISHED SURFACE ELEVATION FFE FINISHED FLOOR ELEVATION ME MATCH EXISTING ROOFDRAIN LINE SPLASH PAD GENERAL NOTES: 1.COUNTY STORMWATER PERMIT MUST BE OBTAINED PRIOR TO ANY CONSTRUCTION OF IMPERVIOUS SURFACE. NO NATURAL DRAINAGE AREAS WILL BE CUT OFF OR DISTURBED BEFORE OBTAINING THE PERMITS. 2.INITIATE EROSION CONTROL SEQUENCE BEFORE BEGINNING CLEARING AND GRADING OPERATIONS. 3.CLEAR AREA WITHIN THE LOD AND ESSENTIAL SITE IMPROVEMENTS OF ALL VEGETATION. PROTECT VEGETATION BEYOND GRADING LIMITS. 4.STRIP TOPSOIL TO FULL DEPTH DESCRIBED IN THE EROSION CONTROL PLANS IN AREAS TO BE GRADED AND STOCKPILE. 5.COMPACT ALL FILL AREAS TO 95% OF MAXIMUM DENSITY. 6.ALL BANK AND SWALE SIDE SLOPES SHALL BE GRADED WITH NO GREATER THAN 3:1 SLOPES. 7.ALL DISTURBED AREAS SHALL BE SMOOTHLY GRADED TO PROMOTE POSITIVE DRAINAGE AND STABILIZED WITH TOPSOIL, SEED, AND MULCH. IF SETTLEMENT OCCURS, TOPSOIL, SEEDING, AND MULCH SHALL BE REPEATED UNTIL SETTLEMENT SUBSIDES. (SEE EROSION AND SEDIMENT CONTROL DETAILS AND SPECIFICATIONS.) 8.ALL AREAS ARE TO BE GRADED SO THAT NO AREAS OF STANDING WATER OCCUR. 9.PROPOSED SPOT ELEVATIONS ARE SHOWN AT FINISHED GRADE. 10.OPERATOR SHALL FIELD VERIFY EXISTING TOPOGRAPHY IN RELATION TO THE PROPOSED GRADES TO ENSURE DRAINAGE IN THE DIRECTIONS INDICATED ON THE PLAN. 11.ALL SELECT AND BORROW MATERIAL SHALL MEET CRITERIA SET FORTH BY SECTIONS 1016 AND 1018 OF THE NORTH CAROLINA DEPARTMENT OF TRANSPORTATION'S STANDARDS AND SPECIFICATIONS FOR ROADS AND STRUCTURES. 12.THE ENGINEER AND THE CONTRACTOR SHALL INSPECT ALL EXISTING PIPES USED IN THE FINAL DRAINAGE SYSTEM AND AGREE ON THE CONDITION OF THE PIPES PRIOR TO CONSTRUCTION. IF DAMAGE OCCURS TO THESE PIPES DURING CONSTRUCTION, THE CONTRACTOR SHALL BE RESPONSIBLE FOR THE REPAIR OR REPLACEMENT OF THE PIPE(S). 13.EXISTING PAVING, CONCRETE, AND OTHER UNSUITABLE MATERIALS INCLUDING UNDERCUT EXCAVATION SHALL NOT BE USED AS FILL MATERIAL AND SHALL BE DISPOSED OF OUTSIDE THE PROJECT LIMITS AT THE CONTRACTOR'S EXPENSE. THE CONTRACTOR IS RESPONSIBLE FOR ALL PERMITTING AND FEES FOR DISPOSAL. 14.ALL PIPE BEDDING SHALL BE CLASS "C" UNLESS OTHERWISE DIRECTED BY THE ENGINEER. 15.ALL TREES, STUMPS, ROOT MAT, ETC. SHALL BE ENTIRELY REMOVED REGARDLESS OF DEPTH. BURIAL OF ORGANIC MATERIAL WITHIN THE PROJECT LIMITS IS NOT PERMITTED. OPEN BURNING OF DOWNED TREES AND STUMPS IS PERMITTED AT A LOCATION APPROVED BY OWNER. CHIPPED MATERIALS MUST BE REMOVED PRIOR TO THE PLACEMENT OF EMBANKMENT OR TOPSOIL. 16.ALL STORM DRAINAGE PIPES SHALL BE RCP CLASS III UNLESS OTHERWISE NOTED ON THE PLANS. ALL HDPE TO BE ADS N-12 OR ENGINEER APPROVED EQUAL. 17.THE CONTRACTOR IS SOLELY RESPONSIBLE TO OBTAIN OFF-SITE SPOIL AREAS FOR DISPOSAL OF EXCESS AND/OR UNSUITABLE MATERIALS AS NECESSARY. OFF-SITE SPOIL AREAS MUST BE SUBMITTED TO THE ENGINEER AND APPLICABLE REGULATORY AGENCIES PRIOR TO UTILIZATION BY THE CONTRACTOR. NO AREAS DESIGNATED AS WETLANDS WILL BE PERMITTED FOR USE AS A DISPOSAL SITE. THE CONTRACTOR SHALL SUBMIT DOCUMENTATION TO THE ENGINEER THAT NO WETLANDS WILL BE IMPACTED. THE ENGINEER WILL NOT CONSIDER ANY DELAYS OR MONETARY CLAIMS OF ANY NATURE RESULTING FROM THE CONTRACTOR'S FAILURE OR DIFFICULTY IN FINDING NECESSARY DISPOSAL SITES TO MEET THE TIME FRAMES AND CAPACITIES REQUIRED. THE CONTRACTOR SHALL BE RESPONSIBLE FOR ALL PLANS, PERMITS, EROSION AND SEDIMENT CONTROL MEASURES, ETC. REQUIRED BY THE APPROPRIATE REGULATORY AGENCIES FOR UTILIZING OFF-SITE SPOIL AREAS. THE CONTRACTOR SHALL CERTIFY TO THE ENGINEER THAT ALL REQUIRED PERMITS HAVE BEEN OBTAINED PRIOR TO UTILIZING THE OFF-SITE SPOIL AREAS. ALL COSTS FOR PROCURING AND UTILIZING THE OFF-SITE SPOIL AREAS ARE TO BE INCIDENTAL TO THE BASE BID. 18.APPROVED COVERS TO PREVENT MATERIAL FROM LEAVING THE TRUCKS MUST BE INSTALLED OVER ALL LOADED TRUCKS HAULING BORROW, EXCAVATED MATERIAL AND/OR FINE AGGREGATES TO OR FROM THE PROJECT SITES OVER STATE MAINTAINED ROADS. ANY MATERIALS DELIVERED, TRANSPORTED, OR REMOVED IN UNCOVERED TRUCKS WILL BE INCORPORATED INTO THE PROJECT OR REMOVED FROM THE SITE WITH NO ADDITIONAL PAYMENT TO THE CONTRACTOR FOR FURNISHING, REMOVING, OR PLACING THE MATERIALS INVOLVED. 19.DEWATERING: THE CONTRACTOR SHALL AT ALL TIMES PROVIDE AND MAINTAIN AMPLE MEANS AND EQUIPMENT WITH WHICH TO REMOVE AND PROPERLY DISPOSE OF ANY AND ALL WATER ENTERING THE EXCAVATION OR OTHER PARTS OF THE WORK AND KEEP ALL EXCAVATIONS DRY UNTIL SUCH TIME AS PIPE LAYING AND GRADING IS COMPLETED. NO WATER SHALL BE ALLOWED TO RISE AROUND THE PIPE IN UNBACKFILLED TRENCHES NOR SHALL IT BE ALLOWED TO RISE OVER MASONRY UNTIL THE CONCRETE OR MORTAR HAS SET (MINIMUM 24 HOURS). ALL WATER PUMPED OR DRAINED FROM THE WORK SHALL BE DISPOSED OF IN SUCH A MANNER AS TO PREVENT SILTATION AND EROSION TO ADJACENT PROPERTY OR OTHER CONSTRUCTION. 20.DO NOT PLANT TREES WITHIN UTILITY AND DRAINAGE EASEMENTS. 21.NO LAND DISTURBING ACTIVITY IS PROPOSED, NOR SHOULD IT OCCUR WITHIN THE DUKE POWER EASEMENT WITHOUT WRITTEN AUTHORIZATION FROM DUKE ENERGY. 22.CONTRACTOR TO CONNECT DOWNSPOUT WITH CLEANOUT PER ARCHITECTS TO ROOF DRAINAGE AND YARD INLET DRAIN LINE PER CIVIL. DOWNSPOUT ADAPTER SPECIFICATION PER ARCHITECT. CONTRACTOR TO PROVIDE 1' MIN. COVER OVER ROOF DRAINAGE AND YARD DRAIN LINES, AND ACHIEVE MIN. 0.5% SLOPE. 23.CONTRACT TO CAREFULLY ROOT PRUNE TREES, CREATING CLEAN CUTS. NO ROUGH BREAKS OF ROOTS, TYPICALLY AS THE RESULT OF MECHANICAL EQUIPMENT, IS ACCEPTABLE. 24.ADA PARKING SPACES, ACCESS ISLES, CURB RAMP LANDINGS, THE ENTIRE INTERIOR DUMPSTER ENCLOSURE AREA AND ACCESSIBLE BUILDING ENTRANCE DOOR SWING CLEARANCES SHALL (PER ARCHITECT) ACHIEVE A MAXIMUM 2% SLOPE IN ANY DIRECTION. 25.PROPOSED SPOT ELEVATIONS ARE SHOWN AT FINISHED GRADE. 26.AERATION DEVICE DRAIN LINES SHALL HAVE 2' MINIMUM COVER AND ACHIEVE POSITIVE DRAINAGE AT 0.5% SLOPE TO DRAINAGE STRUCTURES. LIMITS OF DISTURBANCE CURB AND GUTTER LEGEND CATCH CURB (GRAY FILL) (TYP.) SEE DETAIL TRANSITION FROM SPILL TO CATCH CURB (GRAY DASHED FILL) (TYP.) SPILL CURB (NO FILL COLOR) (TYP.) SEE DETAIL TREE AERATION DRAIN LINE