I-90 Mississippi River Bridge
I-90 Mississippi River Bridge | |
|---|---|
Dresbach Bridge carrying I-90 across the Mississippi River from Minnesota | |
| Coordinates | 43°51′28″N 91°17′57″W / 43.85778°N 91.29917°W |
| Carries | 4 lanes of I-90 |
| Crosses | Mississippi River |
| Locale | Dresbach, Minnesota to La Crosse, Wisconsin |
| Official name | The Dresbach Bridge |
| Maintained by | Minnesota Department of Transportation |
| ID number | B-32-0045 (Wisconsin), 9320 (Minnesota) (previous bridge) |
| Characteristics | |
| Design | Concrete box girder bridge |
| Total length | 2,593 feet (790 m) |
| Width | 45 feet (14 m)-66 feet (20 m) (each span) |
| Longest span | 508 feet (155 m) |
| History | |
| Opened | October 2016 |
| Location | |
The I-90 Mississippi River Bridge, or the Dresbach Bridge, consists of a pair of parallel bridges that traverse the Mississippi River, connecting the La Crosse, Wisconsin area to Dresbach in rural Winona County, Minnesota. The current bridge was fully opened to traffic in October 2016, replacing a previous 1967 plate girder bridge. It is part of the Interstate 90 route. There is another automobile crossing a few miles south of this bridge; the Mississippi River Bridge, a combination of two bridges, and the La Crosse West Channel Bridge, connecting La Crescent, Minnesota and La Crosse, Wisconsin.
The bridge consists of a pair of parallel, concrete box girder structures over the main river channel and precast concrete girder structures over the back channels. The bridges were completed with a cost of $185.5 million, and have the following specifications:
- 100-year design life
- Length: 2,593 feet (790 m)
- Width: varies between 45 and 66 feet (14 and 20 m)
- Two 12-foot (3.7 m) lanes each direction
- Eastbound acceleration lane
- 12-foot (3.7 m) outside shoulders
- 6-foot (1.8 m) inside shoulders
The bridge connects to a redesigned I-90/US 14/US 61 interchange, and provides access to the Dresbach Rest Area/MN Welcome Center and boat launches from westbound I-90. The westbound I-90 to southbound US 14/US 61 interchange has a fly-under ramp allowing continuous movement with no competing traffic.