Sewalls Falls Bridge Replacement

Concord, NH

400 FT
Two Span Steel Bridge
2,000 FT
Roadway Improvements
Interpretative Site

Honoring the Past While Serving the Future


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.


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.


  • ACEC NH Excellence in Engineering 2018 Gold Award
  • 2018 National Steel Bridge Alliance Merit Award