Home | History | Bridge Engineering | Tour Map | Celebration Schedule | MPLS Riverfront District Links


Stone Arch 3rd Avenue Merriam Street Hennepin Ave. & East Channel    
  Nicollet Island RR Boom-Nicollet Ped Other Bridges Lost Bridges  
 

Other Bridges

Plymouth Avenue Bridge (1983-present)

Bridge type: concrete box girder bridge

The current Plymouth Avenue bridge employs bridge technology which was revolutionary for its time and is still quite unusual. It is built from a series of cantilevered concrete box girders, which allows faster construction without the need for wooden falsework to hold the bridge until it can support itself. Embedded in the concrete are stranded, tensioned cables which strengthen the material and resist salt corrosion. This represents the only bridge using this construction method in the state of Minnesota.


Previous bridges at this location

More images of the Plymouth Avenue Bridge

Interstate 35-W Bridge (1967-present)

Bridge type: steel and concrete deck-arch truss bridge

Designed by the Minnesota Department of Transportation, this bridge has a high water clearance and no mid-river piers in order to facilitate navigation of large vessels up to the two locks at St. Anthony Falls, which were opened four years earlier. The single cross-river arch has a span of 458 feet.