Loading...
HomeMy WebLinkAbout26 IWC 13 - Grading and Drainage Plan dated 9-25-24, rev 9-11-26, rec'd 9-14-26MM M T VA N 4 STORIES WITH 57 UNITS FFE=152.50 G VA N CB-9 R=140.19 CB-5 R=148.50 I=146.00(DMH-3) 151.10 151.10 TC=152.30 BC=151.90 152.50 TW=154.50 BW=149.50 CB-1 R=151.50 I=148.50(DMH-1) DMH-OS2 W/ DEEP SUMP R=152.00 I=148.05(DMH-OS1) I=148.05(FES-1) TC=153.75 BC=153.25 TW=155.50 BW=153.20 TW=155.80 BW=155.50TW=154.25 BW=149.50 TW=153.75 BW=153.00 DMH-OS1 W/ DEEP SUMP R=154.60 I=148.45(HW-1) I=148.55(CB-8) I=148.45(DMH-OS2) TW=149.30 BW=MATCH EX. (±144.0) TW=150.00 BW=MATCH EX. (±144.0) TW=150.25 BW=MATCH EX. (±144.0) TW=150.75 BW=MATCH EX. (±144.0) TW=151.25 BW=MATCH EX. (±144.0) TW=151.75 BW=MATCH EX. (±144.0) TW=151.50 BW=MATCH EX. (±144.0) TW=150.25 BW=MATCH EX. (±144.0) 152.50 16 3 ' TW=150.50 BW=MATCH EX. (±144.0) TW=150.50 BW=150.00 68' SUBSURFACE INFILTRATION BASIN BOTTOM STONE = 143.00 BOTTOM PIPE = 143.50 TOP PIPE = 147.50 TOP STONE = 150.00 COORDINATE INSTALLATION PRIOR TO BUILDING OF FOUNDATION AND WATER LINE(TYP.) ON-SITE DETENTION BASIN DMH-1 R=151.60 I=148.00(CB-1) I=148.00(CB-2) I=147.90(CDS-1) CDS-1 R=151.90 I=147.60(DMH-1) I=147.60() CB-7 R=151.25 I=147.60() CB-3 R=150.50 I=147.50(DMH-2) CB-4 R=150.75 I=147.50(DMH-2) DMH-2 R=152.79 I=147.20(CB-3) I=147.20(CB-4) I=147.10(DMH-3) I=147.20(6"X6"x8" TEE) DMH-3 R=150.20 I=145.40(CB-5) I=146.40(DMH-2) I=145.30(DMH-4) CDS-2 R=150.60 I=144.60(DMH-4) I=144.60(CB-6) I=144.60(CMP-STUB) CB-6 R=149.75 I=145.00(CDS-2) OCS-1 ORIFICE WITH TRASH RACK = 146.0 WEIR = 151.20 PIPE = 146.00 TC=151.50 BC=151.00 TC=151.70 BC=151.20 TC=151.70 BC=151.20 152.50 TC=152.35 BC=152.00 TC=152.35 BC=152.00 TC=151.50 BC=151.00 TC=151.50 BC=151.00 TC=151.75 BC=151.25 151.85 151.80 153.40 153 LEVEL SPREADER WITH CURB EDGE (MIN. 56'L) OCS-OFFSITE 20"X12" ORIFICE WITH TRASH RACK = 148.0 WEIR = 150.00 PIPE = 146.65 151.20 TW=149.00 BW=MATCH EX. (±144.0) TW=151.75 BW=MATCH EX. (±144.0) OFFSITE DETENTION BASIN 151.50 2:1 1.5: 1 2: 1 3:1 3:1 3:12:1 OS-DMH3 R=146.20 I=142.40(OS-DMH2) I=142.30(OS-FES1) OS-DMH1 R=153.00 I=145.90(OCS-OFFSITE) I=145.80(OS-DMH2) OMH-3 R=152.00 I=143.50(DMH-5) OMH-4 R=151.50 I=143.50(DMH-6) FES-1 I=148.00(DMH-OS2) FES-2 I=146.00(DMH-5) RIP RAP APRON (SEE DWG. C-7) FES-3 I=146.00(DMH-6) RIP RAP APRON (SEE DWG. C-7) OS-FES1 I=142.00(OS-DMH3) SEE DWG. C-6 FOR LEVEL SPREADER DETAILS OS-DMH2 R=151.25 I=143.60(OS-DMH1) I=143.60(OCS-1) I=143.50(OS-DMH3) 1 5 3 1 5 4 151 15 1 15 1 150 149 151 1 5 0 15 0 152 1 5 1 1 5 0 15 3 1 5 2 15 1 1 5 1 1 5 1 1 5 4 1 5 2 1 5 2 1 5 3 1 5 5 1 5 3 1 5 2 153 152 151 15 2 15 2 15 2 14 9 14 8 14 7 14 6 15 2 151.5 151.5 152 152 151 150 152 153 152 150 15 4 153 153 145 14 8 151 150 146 154 158 160 158 156 154 162 156 150 153 15 2 14 614 6 14 7 14 8 14 9 15 0 15 1 153 15 3 156 157 158 159 160 161 162 163 164 165 15 5 15 6 15 7 15 8 15 8 16 0 16 2 148 146 143144 143 1 5 6 1 5 8 1 6 2 15 9 15 7 15 6 15 5 14 8 RIP RAP APRON (SEE DWG. C-7 TYP.) 142 15 0 15 2 15 014 8 OMH-5 R=150.60 OMH-6 R=151.90 CB-1A R=148.00 FREE STANDING CATCH BASIN/SEDIMENT TRAP AND BEEHIVE FRAME AND GRATE ADDITIONAL UNDISTURBED BUFFER TW=162.00 BW=162.00TW=160.00 BW=154.00 TW=MATCH EX. BW=±153.00 TW=MATCH EX. BW=±150.00 TW=MATCH EX. BW=±154.00 1 4 8 DMH-4 R=151.25 I=144.85(DMH-3) I=148.50(8" RWL) I=144.85(CDS-2) 8" RWL 15 4 15 2 15 015 315 6 15 1 APPROXIMATELY 9,770 SF OF 50' UPLAND REVIEW AREA BEING DISTURBED PERMANENT DISTURBED AREA = ±696 SF TEMPORARY DISTURBED AREA = ±372 SF 4' HIGH CHAIN LINK FENCE WITH ACCESS GATES AREA TO REMAIN UNDISTURBED THROUGHOUT CONSTRUCTION (TYP.) PROPOSED RETAINING WALL WITH FENCE. TOP OF WALL TO MATCH EXISTING GRADES "DESIGN BUILD" WALL WITH FENCE AND GUIDERAIL BY CONTRACTOR (TYP.) "DESIGN BUILD" WALL WITH FENCE BY CONTRACTOR (TYP.) "DESIGN BUILD" WALL WITH FENCE AND GUIDERAIL BY CONTRACTOR (TYP.) 18"Corrugated HDPE Pipe; L=113; S=0.53% 15"Corrugated HDPE Pipe; L=142; S=0.49% 12"Corrugated HDPE Pipe; L=31; S=0.98% 12"CORRUGATED HDPE PIPE; L=101; S=1.09% 18"Corrugated H D P E P i p e ; L=76; S=0.52% 18"Corrugated HDPE Pipe; L=78; S=0.58% 12"Corrugated HDPE Pipe; L=87; S=0.58% 12"Corrugated HDPE Pipe; L=8; S=1.20% 12"Corrugated HDPE Pipe; L=55; S=0.54% 12"Corrugated HDPE Pipe; L=36; S=0.83% 18"Corrugated HDPE Pipe; L=11; S=0.93% 12" D 15"Corrugated HDPE Pipe; L=25; S=2.98% 18"Corrugated HDPE Pipe; L=112; S=1.96% 18"Corrugated HDPE Pipe; L=28; S=8.60% 18"Corrugated HDPE Pipe; L=42; S=2.60% 18"Corrugated HDPE Pipe; L=14; S=2.17% 30"Corrugated HDPE Pipe; L=16; S=0.00% 30"Corrugated HDPE Pipe; L=15; S=0.00% 18"Corrugated HDPE Pipe; L=48; S=0.52% 18"Corrugated HDPE Pipe; L=103; S=0.05% 18"Corrugated HDPE Pipe; L=7; S=0.76% 12"Corrugat e d H D P E P i p e ; L=55; S=0.7 3 % 10' APPROXIMATE LIMIT OF WORK TC=152.35 BC=151.85 154 151.45 152.00 152.50 15 3 152.50 152.50 152 15 2 DMH-5 R=151.55 I=143.50(OMH-3) I=146.00(FES-2) DMH-6 R=151.55 I=143.50(OMH-4) I=146.00(FES-3) 30"Corrugated HDPE Pipe; L=13; S=0.00% 30"Corrugated HDPE Pipe; L=13; S=0.00% CONTRACTOR TO VERIFY RAMP ELEVATIONS PRIOR TO THE START OF SIDEWALK CONSTRUCTION 15 2 TC=151.40 BC=150.90 152.50 152.00 151.55 TC=151.50 BC=151.00 TC=152.15 BC=151.65 TC=152.15 BC=151.65 152.20 152.20 151.55 TC=151.50 BC=151.00 151.85 TC=151.75 BC=151.25 TC=152.50 BC=152.00 15 2 PROPOSED 152 CONTOUR IS TO FOLLOW EDGE OF PLANTING BED (SEE LANDSCAPE PLANS) PROPOSED 152 CONTOUR IS TO FOLLOW EDGE OF PLANTING BED (SEE LANDSCAPE PLANS) CB-8 R=154.70 WITH BEEHIVE FRAME AND GRATE I=150.50(DMH-OS1) 8"Corrugated H D P E P i p e ; L=183; S=1.07 % RIP RAP SWALE WITH FILTER FABRIC PROPOSED UNDER DRAIN (SEE BELOW DETAIL)I=148.50 1 6 4 1 6 0 155 15 5 REMOVE EXISTING PAVEMENT ALONG EXISTING PROPERTY LINE AND INSTALL NEW CURB WITH 6" REVEAL SEE SITE ELECTRICAL DRAWING FOR OTHER UTILITIES IN THIS AREA OF THE SITE (SE-1) INVERT=146.5 INVERT=146.5 INVERT=144.5 OMH-7 R=151.70 OMH-1 R=152.30 OMH-2 R=151.60 OMH-8 R=151.30 152.50 152.50 TC=152.30 BC=151.80 TC=152.30 BC=151.80 152.00 FLUSH TC=152.40 BC=151.90 152.40 152.05 152.55 152.50 152.50 151.65 TC=152.50 BC=152.00 TC=152.80 BC=152.30 TC=152.50 BC=152.00 152.85 TC=152.25 BC=151.75 152.25 152.25 TC=152.00 BC=151.50 152 CB-2 R=151.50 I=148.10(DMH-1) 15 2 151.05 151.00 TC=151.50 BC=151.00 151.10 151.55 151.05 TC=153.70 BC=153.20 152 154 STONE RIP RAP SWALE (SEE SKETCH SK-11 FOR DETAILS) Dr a w i n g n a m e : G : \ C T \ M o n t v i l l e \ H o n e y c o m b R e a l E s t a t e P a r t n e r s \ 2 2 6 8 - 2 2 8 4 R o u t e 3 2 \ M a i n \ 2 4 0 2 9 _ C - 2 G r a d i n g a n d D r a i n a g e P l a n . d w g S e p 1 4 , 2 0 2 6 - 1 1 : 3 1 a m 24029 HORIZON VIEW MONTVILLE, CT 20 AVON MEADOW LANE AVON, CT 06001 DRAWING NUMBER: PROJECT NUMBER: Copyright © 2024 by R.J. O'Connell & Associates, Inc. RJO'CONNELL & ASSOCIATES, INC. CIVIL ENGINEERS, SURVEYORS & LAND PLANNERS 80 MONTVALE AVENUE, SUITE 201 STONEHAM, MA 02180 PHONE: 781.279.0180 RJOCONNELL.COM NO . DA T E RE V I S I O N DRAWING NAME: PREPARED FOR: DESIGNED BY: DRAWN BY: REVIEWED BY: DATE: PROJECT NAME: SCALE: PREPARED BY: SEAL: NO . DA T E RE V I S I O N 1. 09 / 2 5 / 2 0 2 4 SU B M I T T E D T O I N L A N D W E T L A N D S C O M M I S S I O N 2. 10 / 2 5 / 2 0 2 4 SU B M I T T E D F O R S I T E P L A N R E V I E W ( P & Z ) C-2 GRADING AND DRAINAGE PLAN JWR/RWS JWR BPD/RWS 09/25/2024 1" = 30' 0 GRAPHIC SCALE IN FEET 30 15 30 60 SPOT ELEVATION DRAIN LINE DRAIN MANHOLE LEGEND CATCH BASIN DOUBLE CATCH BASIN AREA DRAIN DRAIN CLEAN OUT FLARED END SECTION 33 HEADWALL RIP RAP SPLASH PAD ROOF DRAIN RD TRENCH DRAIN BORING TEST PIT UNDISTURBED BUFFER RJOC N NOTES: 1.SLOPES STEEPER THAN 3:1 REQUIRE EROSION CONTROL MATTING FOR STABILIZATION. 2.SEE DRAWING N-1 FOR GENERAL NOTES, EROSION CONTROL NOTES, DEMOLITION NOTES, GRADING & DRAINAGE NOTES, UTILITY NOTES, AND PARKING AND TRAFFIC CONTROL SIGN SCHEDULE. 3.SEE DRAWING C-5 THROUGH C-10 FOR DETAILS. SHOVEL TEST PIT LOCATION 3. 90 % C O N S T R U C T I O N D O C U M E N T S 01 / 0 6 / 2 0 2 5 4. HO R I Z O N V I E W M I N O R S I T E P L A N M O D I F I C A T I O N 06 / 0 3 / 2 0 2 5 5. PE R M I T S E T 06 / 1 6 / 2 0 2 5 6. RE V I S E D P E R P E E R R E V I E W 09 / 2 6 / 2 0 2 5 7. SI D E W A L K M O D I F I C A T I O N 10 / 0 8 / 2 0 2 5 8. 02 / 2 7 / 2 0 2 6 PROPOSED CONTOUR ELEVATION EX T E N D E D D R A I N L I N E , S U B S U R F A C E B A S I N O U T L E T S & O M H M O D I F I C A T I O N S ( B U L L E T I N # 1 ) UNDERDRAIN DETAIL 6"6" 6" 6" MIRAFI 140N FILTER FABRIC (OVERLAPPED) 8" PERFORATED HDPE PIPE 3/4" WASHED CRUSHED STONE COMPACTED SUBGRADE 3' M I N . COMPACTED BACKFILL Dra w i n g n a m e : G : \ C T \ M o n t v i l l e \ H o n e y c o m b R e a l E s t a t e P a r t n e r s \ 2 2 6 8 - 2 2 8 4 R o u t e 3 2 \ M a i n \ 2 4 0 2 9 _ C - 2 G r a d i n g a n d D r a i n a g e P l a n . d w g S e p 1 4 , 2 0 2 6 - 1 1 : 3 1 a m 9. IN L A N D W E T L A N D S - M I N O R M O D I F I C A T I O N R E Q U E S T 03 / 1 3 / 2 0 2 6 10 IN L A N D W E T L A N D S - M I N O R M O D I F I C A T I O N R E Q U E S T 09 / 1 1 / 2 0 2 6