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HomeMy WebLinkAboutRCG ZBA Meeting Presentation 2-25-26 #3 - Miscellaneous - 0 Prescott Street 2/25/2026 Zoning Board of Appeals Somerville, MA 0214317 Ivaloo Street, Suite 100c/o RCG LLCEast Mill Housing LLCApplicant: 0 Prescott Street (Assessors Map 68 Lot 10)Zero Prescott Street Meeting #3: February 25, 2026 2 Agenda QuestionsNotes on 2023 FloodingStormwater Design and Peer ReviewCivil Design and Peer Review Civil Design and Peer Review underlying zones are additionally requested for clarity. utilizing the Subdistrict A Overlay zoning, waivers relative to discussion with the Building Commissioner. While the Applicant is Proposed dimensional waivers have been revised after further path to Prescott Street.the plans based on Peer Review comments and elimination of the Site grading and retaining walls have been added or removed from and code compliance. level of the garage and provide clarification of the parking counts Parking garage plans have been updated to include layouts for each 3 Civil Design and Peer Review 4 Stormwater Design and Peer Review stormwater downstream.then flows into private culverts that channel the accumulated The existing swale ties into public infrastructure in High Street which existing swale.oil/water separation systems and dump into a single outlet in the The Garage currently captures rain with roof drains that connect to surface (so not “clean” runoff).This results in a Lot Coverage Ratio of 33%, all of which is a parking story concrete structure. -approximately 2.0 acres of land with a 2The current Garage was built in the late 1980s and covers 5 6 Stormwater Design and Peer Review Applicant has updated submittals to reflect peer review comments.into existing public infrastructureProposed design redirects stormwater within the site to reduce flows acres results in 1.4 acres of surface area converted to clean runoff.Reduction in the rooftop area of the garage from 2.0 acres to 0.6 the existing condition.Proposed condition results in 34% lot coverage ratio, versus 33% in stormwater bylaw that are not deemed practical.current state standards. Waivers are requested from the local Proposed design adds mitigation of stormwater to meet or exceed 7 8 Revised Grading and Drainage Plan Notes on 2023 Flooding 9 condition, reducing the likelihood of flooding on High Street.Proposed design for Zero Prescott improves upon the existing Landlord has addressed. Historic building layout trapped water and exacerbated damage which which have been improved. optimal outlet conditions, -Osgood Pond at highest level and with subhad previously unknown blockages that have since been cleared. Town infrastructure was not designed for such intensity and additionally capacity in adjacent neighborhoods and wetlands.An unusually wet summer had saturated the earth and reduced storm would be about 7.9 inches over 24 hours.year -Intensity of storm caused flooding throughout Town. Historic 100Street, which was overwhelmed from all directions:downhil l through the subject site toward the existing infrastructure at High On August 8, 2023, 6.2 inches of rain fell in 6 hours. Water streamed Overview of Watershed Source: APEX Cochichewick Brook Riverine Floodplain Management Study, June 202510 Questions?11 Thank you.Somerville, MA 0214317 Ivaloo Street, Suite 100c/o RCG LLCEast Mill Housing LLCApplicant: