Minnesota Department of Transportation

511 Travel Info

Historic Bridges

Bridge 9177

Bridge 9177

Bridge 9177
See features of the bridge

History & significance

Built in 1958, Bridge 9177 carries 11th Drive over Interstate 90 in Mower County. The bridge is significant as an example of the earliest period of use and evolution for prestressed concrete girders in the state. Prestressed concrete represents a significant advance in construction materials and was first used by the Minnesota Highway Department in 1957.


City of Austin (Mower County)
Latitude, Longitude: 43.67581815, -92.95647226

Bridge features

Bridge 1977

Design and construction of an early prestressed bridge.