Fisher Street Bridge Replacement
North Attleboro, Massachusetts
The original Fisher Street Bridge was constructed circa 1900 with a 12’-6’’ span over the Ten Mile River which flows through the center of North Attleboro and is channeled by fieldstone walls. The bridge was constructed using steel beams and a concrete jack-arch deck sitting atop those channel walls. The existing bridge was structurally deficient, with a load rating of only 3 tons. In fact, upon making a site visit during the course of the design, BETA engineers identified new cracking in the deck that necessitated closure of the bridge.
This project consisted of a full bridge replacement with a precast concrete box culvert. The fieldstone walls at the bridge were removed, and the walls of the culvert aligned with the remainder of the stone channel in order to maintain the existing hydraulic opening.
Because of the close proximity of driveways to the bridge at all four corners, custom curved concrete highway guardrail transitions were designed to terminate the metal bridge rail without the need for approach guardrail.
BETA also designed upgrades and relocations of the stormwater system, and designed a unique solution to accommodate a gravity sewer, located just below the mud line of the river channel, without the need for its relocation.
