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Cape Cod MPO staff outline twin‑arch preference for Canal Bridges, $350M state bond and $4B program estimate
Summary
Commission staff briefed the Cape Cod MPO on the Canal Bridges program, describing a draft preference for twin‑arch bridges, dedicated walk/bike connections, a $350 million state bond commitment, about $25 million expended to date, and an overall construction/design estimate near $4 billion; FHWA is the lead federal agency and a design‑build procurement is targeted for Sept. 2025 in a best‑case schedule.
At a meeting of the Cape Cod Metropolitan Planning Organization, Cape Cod Commission staff provided an update on the Canal Bridges program that will replace and reconfigure the Bourne and Sagamore crossings and make related systemwide improvements.
Stephen Tupper of the Cape Cod Commission summarized outcomes from the fourth round of public meetings, saying the study team has identified a draft preferred bridge type “which was identified as the twin arch style.” The conceptual cross‑section shown to the MPO calls for two adjacent bridge structures at each crossing, two travel lanes in each direction, entrance/exit lanes to manage merging, shoulders (conceptually 10‑foot right shoulders and 4‑foot left shoulders) and a shared‑use pedestrian and bicycle path cantilevered from one of the structures.
Tupper told the MPO there is a…
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