Stroudwater Pedestrian Bridge

Acorn provided civil engineering and permitting services to Portland’s Parks and Recreation Department for a pedestrian bridge crossing over the Stroudwater River between the I-95 and Congress Street crossings. The project includes the relocation of a pre-fabricated 74’-2” span steel bridge to span the bank-to-bank width of the Stroudwater River. Acorn has provided hydraulic modeling services to generate the 100-year flood elevation at the proposed crossing, as well as trail and bridge ramp alignment design to match into the existing Portland Trails network in the vicinity.

The bridge will serve as a key connection into the Portland Trails walking path network and provide more multi-modal transportation opportunities to the greater Portland area. The design and modeling have been performed to show the proposed project meets local floodplain code to better streamline the floodplain management permitting process at a local review level. The installation and construction of the bridge and associated connection ramps is anticipated to occur in early spring, 2026.