McFarland Johnson : Sewalls Falls Bridge Replacement

Summary

Challenge: This municipally-managed and federally-funded bridge project involved the design of the Sewalls Falls Bridge and approach roadway. The original structure, constructed in 1915, was a 2-span Pratt Truss Bridge which was in significant disrepair.

Solution: The new Sewalls Falls bridge is a 3-span, 400', continuous steel haunched girder bridge. The project utilized the FHWA’s Every Day Counts initiative to develop preliminary design. This project included environmental and resource identification, survey, hydraulic design, geotechnical investigation, right-of-way, utility coordination, and public outreach, including a project website and many public meetings. MJ also hosted a series of listening sessions throughout the duration of the project. MJ also prepared a NH Dredge and Fill Permit application, Shoreland Water Quality Protection Act submittal, and Section 404 permit materials. MJ helped negotiate mitigation for impacts to a state Wildlife Management Area and a separate State Recreation Area.