Commission continues large infrastructure projects, seeks peer review for Oakill Way and culvert work

The Brockton Conservation Commission on April 15 continued discussion of two multi-week infrastructure projects and asked staff and applicants to bring additional technical detail before the May 20 meeting.

CDM Smith project manager Chad Kershaw described a plan to rehabilitate a roughly 500-foot reinforced concrete box culvert under Elden Keith Memorial Field using a custom slip-liner. Kershaw said the culvert shows extensive delamination and corrosion, and the work would be done in the dry using coffer dams and bypass pumping; the proposal would temporarily impact channel and bank areas for access and remove 17 trees for construction access. "The intent is to bypass flow of the Salsbury Brook from the existing manhole in West Elm Street to the existing outlet," Kershaw said, describing the installation and grouting process.

On a separate large project, Tracy Dart of MBL Land Development presented an updated Notice of Intent for 270 Oakill Way, a proposed corporate office and vehicle maintenance facility covering about 29 acres in Brockton and an adjoining parcel in West Bridgewater. Dart reviewed prior approvals and active permits, explained the current as-built infrastructure and said the applicant is requesting peer review focused on stormwater and technical design elements. A member of the public raised persistent odor complaints near the Oakill site; Kyle said odor and air-quality enforcement fall outside the commission’s jurisdiction and recommended the resident consult the Board of Health.

The commission voted to continue both filings to May 20 and to send 270 Oakill Way to peer review for stormwater and technical analyses. Staff said they will coordinate the planning-board tech review and peer-review timing so the peer reviewer evaluates a plan set that incorporates initial internal department comments.