Transportation US 40 Arch Bridge

KEY CHALLENGES & PROJECT DETAILS

• A historic open-spandrel concrete arch bridge that passes through Patapsco Valley State Park and spans above a stretch of the Patapsco River.
• This was the most extensive renovation since it was built in 1935 and is expected to extend its lifespan to 50 years.
• Part of MSHA’s bridge system preservation program.
• Bridge was demolished down to the existing arches and then rebuilt from the original arches.
• Construction of temporary shoring, shielding, local strengthening and temporary struts for bridge rehabilitation.
• Replaced floor system, including end posts at end floor beams, spandrel columns and struts.
• Maintenance of traffic handled 37,000 vehicles traveling through the project daily.
• Constructed two temporary bridges for east and westbound travelers through the work area.
• Four retaining walls.