| Bridge Name: | Mississippi River Bridge La Crosse, Wisconsin |
| Also Known As: | Cass Street Bridge and Cameron Avenue BridgeThe Big Blue Bridges |
| Carries: | 4 lanes of / |
| Crosses: | Mississippi River |
| Locale: | La Crosse, Wisconsin and La Crescent, Minnesota |
| Maint: | Wisconsin Department of Transportation |
| Design: | Cantilever bridge (Cass Street) Tied arch bridge (Cameron Avenue) |
| Mainspan: | 475feet (Cameron Avenue) |
| Length: | 2532feet (Cass Street) 2573feet (Cameron Avenue) |
| Width: | 30feet (Cass Street) 50feet (Cameron Avenue) |
| Below: | 67feet (Cass Street) 68feet (Cameron Avenue) |
| Open: | September 1939 (Cass Street) November 17, 2004 (Cameron Avenue)[1] |
| Coordinates: | 43.8092°N -91.2594°W |
The Mississippi River Bridge is a combination of two individual bridges which are also known as the Cass Street Bridge and the Cameron Avenue Bridge, as well as the Big Blue Bridges. They connect downtown La Crosse, Wisconsin to Barron Island, crossing the east channel of the Mississippi River. Another bridge, the La Crosse West Channel Bridge connects Barron Island to La Crescent, Minnesota. The Mississippi River Bridge carries U.S. Routes 14 and 61 with WI 16. There is another bridge about four miles upstream, the I-90 Mississippi River Bridge that connects North La Crosse, French Island, and Dresbach, Minnesota.[2]
The Cass Street Bridge opened Sept. 23, 1939; replacing the previous Vernon Street swing bridge which was heavily damaged following an automobile accident in 1935.[3] [4]
The bridges original concrete deck was replaced by a metal deck in 1983.
In 2004, a new tied arch bridge opened, at this point, the original bridges deck was rehabilitated and both bridges were reopened concurrently in 2005.