410 Main Civil revised 5 16 24

S16°20'00"W 104.98' S21°20'00"W 20.94' S68°40'00"E 97.52' N11°49'00"E N77°11'00"W LOT 262 LOT 265 LOT 308 LOT 264 LOT 263 LOT 304 LOT 307 84.46' 139.95' CONTAINER CONTAINER RAMP RAMP UNDERGROUND SC-310 STORMTECH CHAMBER SYSTEM TOP: 244.50 BOTTOM: 242.20 EXISTING CATCH BASIN RIM: 242.67 FLOW FLOW FLOW FLOW FLOW FLOW FLOW FLOW FLOW FLOW FLOW FLOW FLOW FLOW FLOW FLOW CB-1 (SIZE 12"x12") RIM:256.42 INV OUT:252.89 (6" HDPE) CB-2 (SIZE 12"x12") RIM:254.66 INV IN:251.27 (6" HDPE) INV OUT:247.31 (6" HDPE ) OCS-1 (DIA.48") RIM:248.14 WEIR WALL WITH: - 2x9 INCH.ORIFICE HOLE @ I.E.:243.36 - 2x9 INCH.ORIFICE HOLE @ I.E.:242.95 - 5 DIA.ORIFICE HOLE @ I.E.:242.20 INV OUT:242.20 (12" HDPE) MH-1 (DIA.48") RIM:248.73 INV IN:244.46 (6" HDPE) INV IN:247.09 (6" HDPE) INV IN:244.74 (6" HDPE) CB-3 (SIZE 24"x24") RIM:248.51 INV IN:245.44 (6" HDPE ) INV IN:244.86 (6" HDPE) INV OUT:244.67 (6" HDPE) CB-6 (SIZE 12"x12") RIM:248.50 INV IN:245.36 (6" HDPE) INV OUT:245.36 (6" HDPE) 54' L.F. @ 3.00% 6" HDPE 50' L.F. @ 1.00% 6" HDPE 21' L.F. @ 1.00% 6" HDPE 29' L.F. @ 1.00% 6" HDPE 47' L.F. @ 5.39% 12" HDPE 43' L.F. @ 1.00% 6" HDPE CB-4 (SIZE 12"x12") RIM:248.58 INV OUT:246.08 (6" HDPE) 5" WIDE CHANNEL DRAIN WITH POLYPROPYLENE CB-7 (SIZE 12"x12") RIM:253.01 INV OUT:247.38 (6" HDPE) 5" WIDE CHANNEL DRAIN WITH POLYPROPYLENE TO BE CONNECTED TO CB-6 W/ 6" HDPE PIPE CB-8 (SIZE 12"x12") RIM:247.16 INV OUT:245.00 (6" HDPE) 6" UNDERGROUND PVC PIPE FOR ROOF DOWNSPOUTS CONNECTION, @ MIN. 1% SLOPE. TO BE CONNECTED TO CB-2 ROOF DOWNSPOUTS, TYP. CLEAN OUT 29' L.F. @ 1.00% 6" HDPE29' L.F. @ 1.00% 6" HDPE CB-5 (SIZE 12"x12") RIM:248.50 INV IN:245.65 (6" HDPE) INV OUT:245.65 (6" HDPE) PARK DRIVE NORTH MAIN STREET FLOW FLOW 26' L.F. @ 1.00% 6" HDPE 19' L.F. @ 10.00% 6" HDPE PVC INSPECTION PORT DETAIL (SC SERIES CHAMBER) (SEE DETAIL 4 SHEET 10) © 2023 Microsoft Corporation © 2023 Maxar ©CNES (2023) Distribution Airbus DS SCALE: 1" = 200' USGS LOCATION MAP AR AR AR AR DESIGNED BY: DRAWN BY: CHECKED BY: APPROVED BY: BYDATENO. DESCRIPTION ISSUED FOR PERMIT APPLICATION PROPOSED 3-STORY APARTMENT BUILDING 410 MAIN ST, WEST ORANGE, NJ SCALE: SITE WEST ORANGE TOWNSHIP, ESSEX COUNTY, NJ CIVIL & STRUCTURAL ENGINEERS 293 RT. 18 SOUTH, #D-152 EAST BRUNSWICK, NJ 08816 TEL. 347-762-8364 FAX 201-753-5251 ALI@SMBTCONSULTANTS.COM CERTIFICATE OF AUTHORIZATION NO.: 24GA28353100 SHEET: DWG: N.J. PROFESSIONAL ENGINEER LIC. NO.

RT. 18 SOUTH, #D-152 EAST BRUNSWICK, NJ 08816 TEL. 347-762-8364 FAX 201-753-5251 ALI@SMBTCONSULTANTS.COM CERTIFICATE OF AUTHORIZATION NO.: 24GA28353100 SHEET: DWG: N.J. PROFESSIONAL ENGINEER LIC. NO. 53255 ALIASGAR RANGWALA, P.E. N DATE: 1/16/2024 OF 16 COPYRIGHT 2022 ALL RIGHTS RESERVED. THE COPY OR REUSE OF THIS DOCUMENT OR ANY PORTION THEREOF IS PROHIBITED WITHOUT THE WRITTEN CONSENT OF SMBT CONSULTANTS. THIS DRAWING IS THE SOLE PROPERTY OF SMBT CONSULTANTS AND HAS BEEN PREPARED SPECIFICALLY FOR USE BY THE OWNER OF THIS PROJECT AT THIS SITE. NEW JERSEY INDUSTRIAL CODE REQUIRES DRILL, OR BLAST - STOP CALL AR5/16/20241 REV. SUBMISSION PER COUNTY COMMENTS DATED 4/18/24 0 FEET 10 20 SCALE 1"-10' STORMWATER MANAGEMENT PLAN 1" = 10'1 STORMWATER MANAGEMENT PLAN LEGEND PROPOSED CONCRETE PROPOSED RETAINING WALL PROPERTY LINE N PROPOSED PIPE 7 CHANNEL DRAIN SPECIFICATIONS NTS2 STORMWATER NOTES: 1. CONTRACTOR TO FIELD VERIFY POSSIBILITY OF CONNECTION TO EXISTING CATCH BASIN PRIOR TO CONSTRUCTION. IF ANY DISCREPANCY OCCURS THAT AFFECTS THE DESIGN, CONTACT ENGINEER OF PROJECT TO PROVIDE A SITE VISIT AND DESIGN UPDATE. 2. HDPE PIPES TO BE CORRUGATED DOUBLE WALL 1" = 10' C7