Challenge
One of only two remaining historic double-deck swing bridges in Minnesota that carried railroad over roadway faced demolition due to deterioration and neglect. But the City wanted to preserve the bridge as a regional trail feature overlooking the Mississippi River.
Solution
Following a demolition moratorium signed by Minnesota’s governor, the SEH project team designed a 670-foot recreational bridge that incorporated many of the steel components of the original bridge, built in 1894.
Awards
- 2011 Honor Award | American Council of Engineering Companies
- 2011 Merit Award | Minnesota Society of Professional Engineers
Project
Rock Island Swing Bridge
Location
Inver Grove Heights, Minn.
Client
City of Inver Grove Heights, Minnesota
Features
- Bridge reuse study determined preferred concept for converting a vacated railroad/roadway bridge to a pedestrian pier
- Restored 670-foot truss bridge/pedestrian pier on the Mississippi River
- Preserved historic elements of the original truss
- Stimulus-funded (TE ARRA) project on short delivery schedule
- National Environmental Policy Act documentation
- Agency Coordination
Services
- Bridge Assessment
- Bridge Design
- Construction Administration