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Home My WebLink AboutVCOD 2024-1 SPR Approval 811 Rte 28 061324 with AttachmentsJune 5, 2024 5:30 PM VCOD SPR Rev. 12/12/12 Page 2 of 2 Brief Project Description: _________________________________________________ ______________________________________________________________________ ______________________________________________________________________ ______________________________________________________________________ ______________________________________________________________________ ______________________________________________________________________ ______________________________________________________________________ ______________________________________________________________________ List (petition number and date) and attach copies of prior Board of Appeals Petitions (This information can be obtained from the Board of Appeals Office) ______________________________________________________________________ ______________________________________________________________________ Special Permit Relief Required from Zoning Board of Appeals, if applicable (Specify Section and Relief Sought): ______________________________________________________________________ List of Hazardous Materials and Quantities (attach if necessary): ______________________________________________________________________ Signature of Applicant____________________________Date____________________ Signature of Owner______________________________Date____________________ (if not Applicant) The Applicant is proposing to redevelop the property as multi-family housing, with a total of eight, one-bedroom units. The existing single-family dwelling and shed will be razed and a new multi-family townhouse building will be constructed. The project also includes reconfiguration of a shared-access drive, utility connections, a new sewage disposal system, stormwater management and landscaping. N/A No on-site storage of hazardous materials will be permitted. 3/17/2024 OWNERS: Roseanna Nikolaidis 4 Vineyard Cir Sagamore Beach, MA 02562 Lambros Nikolaidis 812 Main St. Rt 28 South Yarmouth, MA 02664 Engineers Environmental Scientists Software Developers Landscape Architects Planners Surveyors 349 Main Street, Route 28, Unit D / West Yarmouth, MA 02673 / 508-778-8919 MARCH 18, 2024 www.bscgroup.com Town of Yarmouth Department of Community Development 1146 Route 28 South Yarmouth, MA 02664 RE: 811 Route 28, Multi-family development, VCOD To Whom It May Concern, BSC Group, Inc. (BSC) Is pleased to present the following application package for a multi-family residential development at 811 Route 28, pursuant to Section 414 of the Town of Yarmouth Zoning Bylaws, for a VCOD development. The following summary has been prepared to assist the Town in its review of the proposed development, as outlined in the Operational Regulations of the Yarmouth Planning Board. Existing Site The site exists today as a developed single-family residence. The parcel contains 25,500± square feet of uplands and is located on Route 28 In the B2 Zoning District and the HMOD1, VC2 Overlay Districts. The site currently has two curb cuts near the northeast and northwest corners of the property. The more westerly curb cut Is a shared driveway, which Is also used by 807 Route 28, a commercial property. The dwelling Is served by municipal water, gas, overhead electric & telecommunication utilities. The site includes an on-site sewage disposal system for sanitary sewage disposal. In addition to the single-family dwelling, the site also contains a large shed that Is located in the southwest corner of the property. The front yard contains a large gravel open space, as well as portions of a parking lot, which serves the adjacent commercial property at 807 Route 28. Proposed Development The Applicant Is proposing to construct a 2-story townhouse-style apartment building in the center of the property, containing eight (8), one-bedroom, townhouse-style apartment units. Prior to construction of the proposed site improvements, erosion & sedimentation controls will be established and the existing dwelling and shed will be demolished. Site Access The site is located on Main Street (Route 28), which is a State Highway. Therefore, an Access Permit is required by MassDOT prior to construction. The Applicant is proposing to reconstruct the existing sidewalk that runs along Route 28 in front of the property, which will likely be required by MassDOT. In addition, the easterly curb cut will be closed, and the shared driveway on the western side of the property will be reconfigured to serve the proposed development, as well as the adjacent site at 807 Route 28. The proposed driveway is 230 feet long and will provide access to each of the units. A paved turnaround is included for Fire Department access and turnaround. Each unit will have Its own parking space in front of the unit. 349 Main Street, Route 28, Unit D / West Yarmouth, MA 02673 / 508-778-8919 Wastewater The design includes a septic system that is located on the western side of the building, underneath the common driveway. Soil testing was performed by BSC and witnessed by the Yarmouth Health Division Staff In November 2023. Five (5) test pits were excavated, evaluated and logged. Site soils are comprised of fine sand with generally 2-3 feet of overburden consisting of loamy sand topsoil and subsoil. Groundwater was observed in Test Pits 3, 4 & 5 at depths of 120, 120 and 115" below the existing ground surface, respectively. Percolation testing was performed in Test Pits 3 and 5, yielding a result of less than 2 minutes per inch. Stormwater Management Stormwater management facilities have been designed in accordance with the Massachusetts Stormwater Handbook. Catch basins located at the northern and southern end of the driveway will collect stormwater runoff from the driveway and surrounding pervious areas. Collected stormwater from these areas will be treated via water quality structure and then conveyed to a subsurface Infiltration system consisting of twenty-one (21) Cultec R-330XLHD leaching chambers for attenuation and groundwater recharge. Stormwater runoff from the building roof will be collected by gutters and conveyed via roof drains to an Infiltration system located on the eastern side of the building, consisting of ten (10) Cultec R-150XLHD leaching chambers. In addition to these systems, the stormwater design for this facility also includes a bio- retention area (rain garden) in the southeast corner of the site, which will manage stormwater runoff from the eastern side yard. Each of these systems has been designed in accordance with the Massachusetts Stormwater Management Standards, as is capable of attenuating peak runoff associated with a 100-year storm. Utility Services Other utility services required to support this project include domestic water, electric, telecommunications and natural gas. The existing water service will be upgraded to a 2" domestic water service and reconfigured to serve the proposed building. Existing electrical service to the house is provided by overhead wire to a riser pole located along the eastern boundary of the site, approximately 75 feet away from Route 28. The applicant is proposing to maintain the overhead electrical service to this pole but will provide a new underground service to the building from this point. The final design will ultimately be as approved by Eversource. The site Is also served by natural gas. The existing service will be decommissioned, and a new gas service will be installed to serve the new building. This design will ultimately be as approved by National Grid. We look forward to presenting this project to the Town. In the interim, please feel free to contact us, should you have any questions or concerns. Sincerely, BSC Group, Inc. Brian G. Yergatian, P.E., LEED AP Senior Civil Engineering Manager, Senior Associate PRODUCT SPECIFICATION SHEET 1-Light Black Wall Sconce Black Item No:LDOD4039BK Silver Item No:LDOD4039S Available Finishes 7.88inches 4.25inches 6.5inches Engineers Environmental Scientists Software Developers Landscape Architects Planners Surveyors 349 Main Street, Route 28, Unit D / West Yarmouth, MA 02673 / 508-778-8919 APRIL 30, 2024 www.bscgroup.com Kathy Williams, P.E. Yarmouth Town Planner 1146 Route 28 South Yarmouth, MA 02664 RE: DRC Application, 811 Route 28 Dear Kathy, BSC Group, Inc. (BSC) has revised the site plans for the proposed multi-family development at 811 Route 28 in South Yarmouth. The plans were revised based on the comments that we received during the VCOD Site Plan Review meeting on April 16, 2024. The following summarizes the plan modifications that have resulted in the current site plans, revised April 26, 2024: · Added a sidewalk connection to the existing sidewalk on Route 28. · Moved the bike rack further away from the fire lane and added protective bollards. · Added a 3’ x 3’ concrete pad to the rear of each unit for a condenser. The hot water heater will be located in the closet below the stairs of each unit. · Modified the design of the septic system. The previous design included 500-gallon precast concrete chambers. These were replaced with Cur-tech CTL-12 chambers, which have a shallower profile. · Swapped the location of Infiltration System #1 and the reserve area to provide greater separation to between the infiltration and soil absorption systems. · Modified the grading of the access drive to ensure more effective drainage of stormwater runoff. · Decreased the overall length of the access drive and moved the dumpster out of the 20-foot buffer to the residentially zoned properties to the south. · Added four (4) new trees at intervals of 30 feet, along the southern boundary of the site to comply with the VCOD buffer requirements. · Modified site landscaping by replacing invasive species with non-invasives. · Combined driveways of Units 1 & 2, Units 3 & 4, Units 5 & 6 and Units 7 & 8. This allowed us to increase the width of the landscaped islands between Units 2 & 3 and Units 6 & 7, in order to provide larger canopy trees in those locations. · Added plantings to the proposed Rain Garden. · Replaced English Yew with Holly throughout the site. 349 Main Street, Route 28, Unit D / West Yarmouth, MA 02673 / 508-778-8919 I look forward to presenting them to the Design Review Committee next week. If you have any questions or comments in the interim, please feel free to reach out at your convenience. Sincerely, BSC Group, Inc. Brian G. Yergatian, P.E., LEED AP Manager of Civil Engineering, Senior Associate Engineers Environmental Scientists Software Developers Landscape Architects Planners Surveyors 349 Main Street, Route 28, Unit D / West Yarmouth, MA 02673 / 508-778-8919 MAY 23, 2024 www.bscgroup.com Kathy Williams, P.E. Yarmouth Town Planner 1146 Route 28 South Yarmouth, MA 02664 RE: DRC Application, 811 Route 28 Dear Kathy, BSC Group, Inc. (BSC) has revised the site plans for the proposed multi-family development at 811 Route 28 in South Yarmouth. The plans were revised based on the comments that we received from Staff during the Design Review meeting on May 7, 2024. The following summarizes the plan modifications that have resulted in the current site plans, revised May 22, 2024: · Moved the bicycle rack closer to the building. · Relocated Infiltration System #1 several feet to the east and slightly south to allow more space to relocate the proposed street trees. · Moved the proposed trees along Route 28 further away from the street. The trees are now set back a minimum of 16 feet from the edge of the right-of-way. · Moved the dumpster 3-4 feet closer to the southern boundary (and into the 20-foot buffer to make it easier to back out the driveway at the southern end of the building. · Modified the proposed plantings in the southern buffer to meet the requirements of Section 414.8.9.3. · Moved the four (4) proposed red maple shade trees several feet closer to the access drive and extended the length of the two (2) landscaped medians by a distance of 2 feet to reduce pavement area and increase tree canopy coverage. · Reduced the number of shrubs around the perimeter of the paved turnaround. These areas have been replaced with lawn. I look forward to presenting the Project to the Planning Board at the June 5, 2024 public hearing. If you have any questions or comments in the interim, please contact me at your convenience. Sincerely, BSC Group, Inc. Brian G. Yergatian, P.E., LEED AP Manager of Civil Engineering, Senior Associate MULTI-FAMILY DEVELOPMENT 811 MAIN STREET (ROUTE 28) SOUTH YARMOUTH, MASSACHUSETTS MARCH 18, 2024 REVISED: MAY 22, 2024 T-100 TITLE SHEET G-100 EXISTING CONDITIONS PLAN C-100 EROSION & SEDIMENT CONTROL PLAN C-200 SITE PREPERATION & DEMOLITION PLAN C-300 LAYOUT & MATERIALS PLAN C-400 GRADING & DRAINAGE PLAN C-500 SEPTIC & UTILITIES PLAN L-100 PLANTING PLAN C-600 - 602 DETAILS CHRISTINA MEGGISON 693 RUSSELLS MILLS ROAD SOUTH DARTMOUTH, MA 02748 LOCUS LOCUS MAP ISSUED FOR PERMITTING NOT FOR CONSTRUCTION INDEX OF DRAWINGS 349 Main Street - Route 28 West Yarmouth, Massachusetts 02673 508 778 8919 GOH W OH W SSSGGGGGGGWWS S G G G G G S SSGOH W OH W G G G G G GOH W OH W G G G G G GOH W OH W G G G G G GOH W OH W G G G G G GOH W OH W G G G G G GOH W OH W G G G G G GOH W OH W G G G G G GOH W OH W G G G G G GOH W OH W G G G G G GOH W OH W G G G G G GOH W OH W G G G G G PUBLI C W A Y -- 4 0' WI D E ROUT E 2 8 OHWOHWOHWWWWWWWWWWOHWOHWOHWOHWGGGGGGGGGIN PLAN OF LAND 811 ROUTE 28 YARMOUTH MASSACHUSETTS (BARNSTABLE COUNTY) EXISTING CONDITIONS PLAN MARCH 18, 2024 LOCUS G-100 349 Main Street - Route 28 West Yarmouth, Massachusetts 02673 508 778 8919 WWWWWGGGWWPUBLI C W A Y -- 4 0' WI D E ROUT E 2 8 WWWWWWWWWISSUED FOR PERMITTING NOT FOR CONSTRUCTION C-100 MULTI-FAMILY RESIDENTIAL 811 ROUTE 28 SOUTH YARMOUTH MASSACHUSETTS (BARNSTABLE COUNTY) EROSION & SEDIMENT CONTROL PLAN MARCH 18, 2024 349 Main Street - Route 28 West Yarmouth, Massachusetts 02673 508 778 8919 WWWWWGGGGOH W OH W OH WW WG G G G G S SSGOH W OH W OH W G G G G G GOH W OH W OH W G G G G G GOH W OH W OH W G G G G G GOH W OH W OH W G G G G G GOH W OH W OH W G G G G G GOH W OH W OH W G G G G G GOH W OH W OH W G G G G G GOH W OH W OH W G G G G G GOH W OH W OH W G G G G G GOH W OH W OH W G G G G G GOH W OH W OH W G G G G G PUBLI C W A Y -- 4 0' WI D E ROUT E 2 8 OHWOHWOHWWWWWWWWWWOHWOHWOHWOHWGGGGGGGGG349 Main Street - Route 28 West Yarmouth, Massachusetts 02673 508 778 8919 ISSUED FOR PERMITTING NOT FOR CONSTRUCTION C-200 MULTI-FAMILY RESIDENTIAL 811 ROUTE 28 SOUTH YARMOUTH MASSACHUSETTS (BARNSTABLE COUNTY) SITE PREPARATION & DEMOLITION PLAN MARCH 18, 2024 PUBLI C W A Y -- 4 0' WI D E ROUT E 2 8 FIRELANE ISSUED FOR PERMITTING NOT FOR CONSTRUCTION C-300 MULTI-FAMILY RESIDENTIAL 811 ROUTE 28 SOUTH YARMOUTH MASSACHUSETTS (BARNSTABLE COUNTY) LAYOUT & MATERIALS PLAN MARCH 18, 2024 349 Main Street - Route 28 West Yarmouth, Massachusetts 02673 508 778 8919 S SS PUBLI C W A Y -- 4 0' WI D E ROUT E 2 8 RDRDRDRDDDDDDDDDDD DISSUED FOR PERMITTING NOT FOR CONSTRUCTION C-400 MULTI-FAMILY RESIDENTIAL 811 ROUTE 28 SOUTH YARMOUTH MASSACHUSETTS (BARNSTABLE COUNTY) GRADING & DRAINAGE PLAN MARCH 18, 2024 349 Main Street - Route 28 West Yarmouth, Massachusetts 02673 508 778 8919 WWWWWGGGGSSSGGGGGGGWS S G G G G G S SSGG G G G G GG G G G G GG G G G G GG G G G G GG G G G G GG G G G G GG G G G G GG G G G G GG G G G G GG G G G G GG G G G G PUBLI C W A Y -- 4 0' WI D E ROUT E 2 8 OHWOHWOHWWWWWWWWWWOHWOHWOHWOHWGGGGGGGGGRDRDRDRDWFWW WWFFFFGGG GE S SSS S SC-500 MULTI-FAMILY RESIDENTIAL 811 ROUTE 28 SOUTH YARMOUTH MASSACHUSETTS (BARNSTABLE COUNTY) SEPTIC & UTILITIES PLAN MARCH 18, 2024 349 Main Street - Route 28 West Yarmouth, Massachusetts 02673 508 778 8919 ISSUED FOR PERMITTING NOT FOR CONSTRUCTION OH W OH W OH W OH W OH W OH W OH W OH W OH W OH W OH W OH W OH W OH W OH W OH W OH W OH W OH W OH W OH W OH W OH W OH W OH W OH W OH W OH W OH W OH W OH W OH W OH W OH W OH W OH W PUBLI C W A Y -- 4 0' WI D E ROUT E 2 8 OHWOHWOHWOHWOHWOHWOHWWFWW WWFFFFGGG GE (3) - QU (3) - AC (1) - If (2) - Id (6) - Ig (6) - Ig (3) - Ca (3) - Ca (5) - Ro SS(10) - Ig (3) - Ca (2) - Ir (2) - Ir (2) - Ca (8) - TO (38) - Sis a (84) - Car s (51) - Sis a (79) - Car m LAWN LAWN LAWN LAWN LAWN LAWN LAWN LAWN LAWN S S S(2) - Id (2) - Id (54) - Lir s (54) - Lir s (5) - Aa2 (2) - Id (1) - Re (2) - Ry (2) - Ry (2) - Ry (1) - AC R=15' R=15' R=15' R=15' LAWN LAWN LAWN 440 SF 530 SF 530 SF 290 SF (6) - Is (1) - Pj (1) - Pj (7) - Pj (4) - Re (5) - Ig (1) - Id (3) - Is (1) - AA (1) - AA (1) - AA (1) - AA (5) - Ca CODE QTY BOTANICAL / COMMON NAME NOTES SIZE EVERGREEN TO 8 THUJA OCCIDENTALIS AMERICAN ARBORVITAE B & B 6-7` HT FLOWERING / SMALL TREES AC 4 AMELANCHIER CANADENSIS CANADIAN SERVICEBERRY B & B 7-8` HT. SHADE TREESAA5 ACER RUBRUM 'AUTUMN FLAME' AUTUMN FLAME RED MAPLE B & B 3-3.5" CAL QU 3 QUERCUS PALUSTRIS PIN OAK B & B 3-3.5" CAL CODE QTY BOTANICAL / COMMON NAME SIZE SIZE SHRUBS Aa2 8 ARONIA MELANOCARPA `AUTUMN MAGIC` AUTUMN MAGIC BLACK CHOKEBERRY 5 GAL Ca 16 CLETHRA ALNIFOLIA SUMMERSWEET 5 GAL Hv 2 HAMAMELIS VIRGINIANA COMMON WITCH HAZEL B & B 5-6' HT. Ig 27 ILEX GLABRA INKBERRY HOLLY 5 GAL Ir 4 ILEX VERTICILLATA 'FARROWBPOP' BERRY POPPINS® WINTERBERRY 5 GAL If 1 ILEX VERTICILLATA 'FARROWMRP' MR. POPPINS® WINTERBERRY 3 GAL Is 9 ILEX X CRENATA 'SOFT TOUCH' SOFT TOUCH HOLLY 3 GAL Id 18 ILEX X MESERVEAE 'BLUE PRINCE' & 'BLUE PRINCESS' BLUE PRINCE AND PRINCESS HOLLY 3-4` HT Pj 9 PIERIS JAPONICA JAPANESE PIERIS 5 GAL Ro 5 RHODODENDRON X `OLGA MEZITT` OLGA MEZITT PJM RHODODENDRON 3-4` HT Re 8 RHODODENDRON X 'ENGLISH ROSEUM' ENGLISH ROSEUM RHODODENDRON 3-4` HT Ry 6 RHODODENDRON YEDOENSE POUKHANENSE 'COMPACTA' COMPACT KOREAN AZALEA 24-30" HT. SYMBOL QTY BOTANICAL / COMMON NAME CONT SIZE SPACING GROUND COVERS 79 CAREX MORROWII 'ICE DANCE' ICE DANCE JAPANESE SEDGE 1 GAL 12" o.c. 84 CAREX SIDEROSTICHA 'SNOW CAP' SNOW CAP BROADLEAF SEDGE 1 GAL 12" o.c. 108 LIRIOPE SPICATA CREEPING LILYTURF 4" POT 10" o.c. 89 SISYRINCHIUM ANGUSTIFOLIUM 'LUCERNE' LUCERNE BLUE-EYED GRASS 1 GAL 18" o.c. PLANT SCHEDULE ISSUED FOR PERMITTING NOT FOR CONSTRUCTION L-100 MULTI-FAMILY RESIDENTIAL 811 ROUTE 28 SOUTH YARMOUTH MASSACHUSETTS (BARNSTABLE COUNTY) PLANTING PLAN MARCH 18, 2024 349 Main Street - Route 28 West Yarmouth, Massachusetts 02673 508 778 8919 NOTE: RKING AREA: 5,205 SF TREE CANOPY COVERAGE AT PARKING AREA: 1,790 SF, 34% ISSUED FOR PERMITTING NOT FOR CONSTRUCTION C-600 MULTI-FAMILY RESIDENTIAL 811 ROUTE 28 SOUTH YARMOUTH MASSACHUSETTS (BARNSTABLE COUNTY) DETAILS MARCH 18, 2024 349 Main Street - Route 28 West Yarmouth, Massachusetts 02673 508 778 8919 ISSUED FOR PERMITTING NOT FOR CONSTRUCTION 12" MIN. C-601 MULTI-FAMILY RESIDENTIAL 811 ROUTE 28 SOUTH YARMOUTH MASSACHUSETTS (BARNSTABLE COUNTY) DETAILS MARCH 18, 2024 349 Main Street - Route 28 West Yarmouth, Massachusetts 02673 508 778 8919 6.0" [152 mm] MIN. 18.5" [470 mm] 6.0" [152 mm] MIN. 39.0" [991 mm] CENTER TO CENTER33.0" [838 mm]12.0" [305 mm] MIN. 6.0" [152 mm] MIN.12.0' MAX. COVER DEPTH CULTEC NO. 410 NON-WOVEN GEOTEXTILE AROUND STONE. TOP AND SIDES ARE MANDATORY; BOTTOM PER ENGINEER'S DESIGN PREFERENCENATURALLY COMPACTED FILL FINISHED GRADE 1-2 INCH [25-50 mm] WASHED, CRUSHED STONECULTEC HVLV FC-24 FEED CONNECTOR WHERE SPECIFIED RECHARGER 150XLHD HEAVY DUTY CHAMBER PROJECT ENGINEER OF RECORD OR GEOTECHNICAL CONSULTANT IS RESPONSIBLE FOR ENSURING THAT THE REQUIRED BEARING CAPACITY OF SUB-GRADE SOILS HAS BEEN MET CULTEC NO. 4800 WOVEN GEOTEXTILE TO BE PLACED BENEATH INTERNAL MANIFOLD FEATURE AND BENEATH ALL INLET/OUTLET PIPES (FOR SCOUR PROTECTION) 7.5' [2.29 m] MIN. CULTEC NO. 4800 WOVEN GEOTEXTILE PLACED BENEATH FEED CONNECTORS 10.0' [3.0 m] MIN. CULTEC NO. 4800 WOVEN GEOTEXTILE PLACED BENEATH INLET PIPES PIPE PER ENGINEER DESIGN. PIPE TO BE INSERTED 12.0 INCHES [305 mm] MIN. INTO CHAMBER. MAXIMUM PIPE SIZE: 12.0" [300 mm] HDPE 15.0" [375 mm] PVC FINISHED GRADE NATURALLY COMPACTED FILL CULTEC NO. 410 NON-WOVEN GEOTEXTILE AROUND STONE. TOP AND SIDES MANDATORY, BOTTOM PER ENGINEER'S DESIGN PREFERENCE CULTEC HVLV FC-24 FEED CONNECTOR WHERE SPECIFIED CULTEC RECHARGER 150XLHD HEAVY-DUTY CHAMBER 6.0 INCH [152 mm] MIN. DEPTH OF 1-2 INCH [25-50 mm] WASHED, CRUSHED STONE ABOVE CHAMBERS 12.0 INCH [305 mm] MIN. WIDTH OF 1-2 INCH [25-50 mm] WASHED, CRUSHED STONE BORDER SURROUNDING ALL CHAMBERS 6.0 INCH [152 mm] MIN. DEPTH OF 1-2 INCH [25-50 mm] WASHED, CRUSHED STONE BELOW CHAMBERS FINISHED GRADE 6.0" [152 mm] [150mm] MIN. 15.0" [375mm] 6" [150mm] SDR-35 BELL END CUT FOR 6" OF INSERTED PIPE 6" [150mm] SDR-35 RISER (LENGTH VARIES) 6" [150mm] PVC SCREW IN CAP AASHTO HS-25 RATED CAST IRON FRAME AND SOLID COVER 12" X 6" [300mmX150mm] CULTEC INLINE DRAIN / CLEAN-OUT BASIN w/ GASKETED SDR-35 CONNECTION 6.25" [160mm] HOLE TO BE CUT w/ HOLE SAW CENTERED ON CORRUGATION CREST NATURALLY COMPACTED FILL CULTEC NO. 410 NON-WOVEN GEOTEXTILE AROUND STONE. TOP AND SIDES MANDATORY, BOTTOM PER ENGINEER'S DESIGN PREFERENCE CULTEC RECHARGER 360HD HEAVY-DUTY CHAMBER CULTEC HVLV FC-48 FEED CONNECTOR WHERE SPECIFIED FINISHED GRADE NATURALLY COMPACTED FILL PIPE PER ENGINEER DESIGN PIPE TO BE INSERTED 12.0 INCHES [305mm] MIN. INTO CHAMBER MAXIMUM PIPE SIZE: 24" [600mm] HDPE 30" [750mm] PVC 6.0 INCH [152mm] MIN. DEPTH OF 1-2 INCH [25-50mm] WASHED, CRUSHED STONE BENEATH CHAMBERS 12.0 INCH [305mm] MIN. WIDTH OF 1-2 INCH [25-50mm] WASHED, CRUSHED STONE BORDER SURROUNDING ALL CHAMBERS 6.0 INCH [152mm] MIN. DEPTH OF 1-2 INCH [25-50mm] WASHED, CRUSHED STONE BENEATH CHAMBERS 12.0' [3.66m] MIN. CULTEC NO. 4800 WOVEN GEOTEXTILE PLACED BENEATH INLET PIPES 7.5' [2.29m] MIN. CULTEC NO. 4800 WOVEN GEOTEXTILE PLACED BENEATH FEED CONNECTORS CULTEC RECHARGER 360HD HEAVY DUTY CHAMBER CULTEC HVLV FC-48 FEED CONNECTOR WHERE SPECIFIED 1-2 INCH [25-50mm] WASHED, CRUSHED STONE SURROUNDING CHAMBERS FINISHED GRADE CULTEC NO. 410 NON-WOVEN GEOTEXTILE AROUND STONE. TOP AND SIDES MANDATORY, BOTTOM PER ENGINEER'S DESIGN PREFERENCE NATURALLY COMPACTED FILL 6.0" [153 mm] [152mm] MIN. 36.0" [915 mm] [914mm] 12.0" [304 mm] [305mm] MIN. 6.0" [153 mm] [152mm] MIN. 12.0' [3.66m] MAX. COVER DEPTH 60.0" [1524 mm] [1525mm] 69.0" [1752 mm] [1753mm] MIN. CENTER TO CENTER12.0" [306 mm] [305mm] MIN. PROJECT ENGINEER OF RECORD OR GEOTECHNICAL CONSULTANT IS RESPONSIBLE FOR ENSURING THAT THE REQUIRED BEARING CAPACITY OF SUB-GRADE SOILS HAS BEEN MET CULTEC NO. 4800 WOVEN GEOTEXTILE TO BE PLACED BENEATH INTERNAL MANIFOLD FEATURE AND BENEATH ALL INLET/OUTLET PIPES (FOR SCOUR PROTECTION) 9.0" [228 mm] [229mm] MIN. NOTES: 1. THE CHAMBERS SHALL BE DESIGNED AND TESTED IN ACCORDANCE WITH ASTM F2787 "STANDARD PRACTICE FOR STRUCTURAL DESIGN OF THERMOPLASTIC CORRUGATED WALL STORMWATER COLLECTION CHAMBERS." THE LOAD CONFIGURATION SHALL INCLUDE: 1.a. INSTANTANEOUS AASHTO DESIGN TRUCK LIVE LOAD AT MINIMUM COVER 1.b. MAXIMUM PERMANENT (50-YEAR) COVER LOAD 1.c. 1-WEEK PARKED AASHTO DESIGN TRUCK LOAD 2. THE CHAMBERS SHALL MEET THE REQUIREMENTS OF ASTM F3430-20 "STANDARD SPECIFICATION FOR CELLULAR POLYPROPYLENE (PP) CORRUGATED WALL STORMWATER COLLECTION CHAMBERS" 3. THE INSTALLED CHAMBER SYSTEM SHALL PROVIDE RESISTANCE TO THE LOADS AND LOAD FACTORS AS DEFINED IN THE AASHTO LRFD BRIDGE DESIGN SPECIFICATIONS SECTION 12.12, WHEN INSTALLED ACCORDING TO CULTEC'S RECOMMENDED INSTALLATION INSTRUCTIONS. THE STRUCTURAL DESIGN OF THE CHAMBERS SHALL INCLUDE THE FOLLOWING: 3.a. THE CREEP MODULUS SHALL BE 50-YEAR AS SPECIFIED IN ASTM F3430 3.b. THE MINIMUM SAFETY FACTOR FOR LIVE LOADS SHALL BE 1.75 3.c. THE MINIMUM SAFETY FACTOR FOR DEAD LOADS SHALL BE 1.95 FINISHED GRADE 6.0" [150 mm] SDR-35 / SCH 40 PVC (INSERTED 8.0" [203 mm] INTO CHAMBER) TRIM CHAMBER INSPECTION PORT KNOCK-OUT TO MATCH O.D. OF 6.0" [150 mm] INSPECTION PORT PIPE 6.0" [150 mm] SDR-35 / SCH. 40 PVC COUPLING 6.0" [150 mm] SDR-35 / SCH. 40 PVC RISER 6.0" [150 mm] SDR-35 / SCH. 40 PVC ENDCAP CLEAN-OUT ADAPTER W/ SCREW-IN CAP ISSUED FOR PERMITTING NOT FOR CONSTRUCTION C-602 MULTI-FAMILY RESIDENTIAL 811 ROUTE 28 SOUTH YARMOUTH MASSACHUSETTS (BARNSTABLE COUNTY) DETAILS MARCH 18, 2024 349 Main Street - Route 28 West Yarmouth, Massachusetts 02673 508 778 8919