Mashpee planners advance Red Brick Road culvert replacement and linked river restorations

Staff told the Mashpee Conservation Commission on July 9 that the Red Brick Road culvert replacement is moving toward a permit submission after plans were redrafted because of property‑ownership constraints that run across the town line with Falmouth. Dan, the Conservation Department staffer, said the culvert is in poor condition, does not pass fish and that the project aims to restore fish passage upstream once the culvert is replaced.

The town has funding in place for permitting and “almost all” the construction funding, Dan said. He added that NOAA provided substantial funding that has accelerated the project and that staff are pursuing easements rather than full land acquisition for the construction area. Dan warned that replacing the culvert will require road closures and detours and that timing will depend on permitting and time‑of‑year restrictions imposed by state agencies.

The commission asked about the expected length of road closures. Dan said the schedule is unknown until permits and timing restrictions are clear: “We can’t really say three months or six months … until permitting starts,” he said. He also said engineers are planning restoration upstream, and cautioned the commission that removing illegal dams in old cranberry bogs above the culvert will require careful coordination so that released water does not degrade downstream water quality.

Commissioners raised questions about private easements on the Falmouth side, shoreline work and public outreach. Dan said the project team has completed appraisals for easements and will notify residents and DPW in advance of closures; the culvert is at the town line, so coordination with Falmouth and other stakeholders is ongoing.

The commission was told similar restoration work in the region—such as Childs River—had measurable ecological benefits within several years, and staff said they expect a multistage permitting and construction schedule. Members were urged to expect robust public comment at the permitting hearings.

The commission asked staff to schedule the culvert plans for a future meeting once permit materials are ready and to circulate a public‑notice plan once dates are known.