Planning board tables Hamilton Way subdivision after safety, wetlands and access concerns

The Bedford Planning Board on Feb. 10 voted to table an application for a lot line adjustment and two‑lot subdivision at 7 Hamilton Way after extended discussion about sight‑distance safety, wetland impacts and potential blasting.

The applicant, represented by attorney Philip Hastings of Cleveland, Waters and Bass and Tom Burns of T. F. Moran, asked the board to approve two waivers: (1) a partial waiver from a requirement for a full boundary survey for the larger Bedford Bluffs parcel, and (2) a waiver from the regulation that each lot must have its own driveway on public frontage, proposing instead a shared driveway off the existing Hamilton Way access.

Board members and town staff said the project raises competing concerns. Public Works and town engineering staff flagged a safety standard: Bedford’s driveway/roadway standard requires 200 feet of all‑season sight distance at driveway exits. The applicant’s submitted survey showed roughly 60 feet of sight distance looking west from the existing driveway because of a crest on Hamilton Way; applicants argued adding one house would produce fewer than one additional trip during peak hours (about 0.7 AM peak and 0.94 PM peak trips) and compared that effect to an accessory dwelling unit (ADU), which they estimated generates roughly 0.5–0.6 peak‑hour trips per ITE guidance.

Town Engineer Brian DeFosos and Public Works staff said they do not typically waive sight‑distance requirements and cautioned that the existing crest in the roadway and driver sight lines make the existing driveway deficient. DeFosos said the camera street‑view images shown at the meeting are taken from a higher mounting height than a driver’s eye and do not represent the typical driver sightline. He recommended that, if the applicants want the board to consider a waiver, they return with designs that achieve the 200‑foot minimum or demonstrate an alternative that substantially improves sight distance.

Applicants described site constraints that made a Nashua Road driveway or full survey difficult: steep grades, wetlands (including a vernal pool) and a town culvert at the Nashua Road frontage that complicates drainage. Burns said designing a driveway off Nashua Road would require substantially more grading, additional land acquisition from the adjoining Bedford Bluffs parcel and more blasting and disturbance than using the existing access. He said the proposed shared driveway would reduce disturbance to slopes and wetlands and that fire‑department concerns could be addressed by widening the shared access to 16–18 feet and providing mitigation such as signage and conditions limiting future ADUs.

Residents who live on Hamilton Way expressed safety and water‑well concerns. Several speakers asked whether blasting or ledge removal would be required for development and whether blasting could affect private wells; Burns said the proposed plan using the existing driveway would require less ledge removal than a new Nashua Road access, and that blasting permits and a pre‑blast survey would be handled by the fire department if blasting were required. Neighbors also described past crashes and said vehicles frequently exceed posted speeds.

The board discussed enforcement concerns about deed restrictions limiting ADUs; planning staff said enforcing deed‑recorded restrictions and enforcement at the time of a building permit each present practical challenges. Commissioners split on the waiver. Several members said they were reluctant to approve a waiver that leaves a known safety deficiency uncorrected; others said the environmental and grading impacts of constructing a new driveway off Nashua Road could be greater.

After discussion, the board voted to table the application to allow applicants to return with additional information. The board asked for: (a) a clearer depiction of alternative driveway alignments (including the option of shifting the driveway entrance toward the crest or pursuing a lot‑line adjustment with the northwest abutter), (b) measured sight‑distance values for any revised entrance locations and (c) more information about blasting and ledge removal for each alternative. The motion to table was made by Planning Board member Priscilla Malcolm and seconded by John Nelson; the board took a voice vote in favor and continued the matter to March 10, 2025.

Why it matters: the decision balances two town priorities — minimizing vehicle‑safety risk at driveway exits and limiting disturbance to steep slopes and sensitive wetlands. The board’s request for additional technical analysis signals it will not approve reduced sight distance without clear evidence of safety mitigation or an achievable alternative that meets the town’s 200‑foot minimum.

Meeting context and next steps: the board spent substantial time on the item (more than an hour), heard three nearby residents during public comment, and received a detailed presentation from the applicant and the town engineer. The applicant agreed to return with revised plans and measured sight‑distance data; the board encouraged members to inspect the site in daylight before the next hearing.