词条 | I-90 Mississippi River Bridge |
释义 |
|bridge_name= I-90 Mississippi River Bridge |image= Mississippi River Lock and Dam number 7.jpg |image_size=300px |caption= Aerial view looking south, with Lock and Dam No. 7 in the foreground and the previous bridge in the background |official_name= |also_known_as=I-90 Dresbach Bridge |carries= 4 lanes of {{jct|country=USA|I|90}} |crosses= Mississippi River |locale= Dresbach, Minnesota to La Crosse, Wisconsin |maint= Wisconsin and Minnesota Departments of Transportation |id= B-32-0045 (Wisconsin), 9320 (Minnesota) (previous bridge) |design= Concrete box girder bridge |mainspan= {{convert|508|ft|m|0}} |length= {{convert|2593|ft|m|0}} |width= {{convert|45|ft|m|0}}-{{convert|66|ft|m|0}} (each span) |clearance= |below= |traffic= |open= October 2016 |closed= |toll= |map_cue= |map_image= |map_text= |map_width= |coordinates= {{coord|43|51|28|N|91|17|57|W|region:US-WI_type:landmark|display=inline,title}} }} The I-90 Mississippi River Bridge consists of a pair of bridges that traverse the Mississippi River, connecting the La Crosse, Wisconsin area to rural Winona County, Minnesota. The current bridge fully opened to traffic in October 2016, replacing a previous 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:
The bridge connects to the 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.[1] HistoryThe previous bridge was a plate girder bridge completed in 1967; the steel structure was painted dark green, and the bridge had a concrete railing. Although the previous bridge had no weight restrictions and operated at an acceptable level of service at the time of replacement, there were a number of problems with the bridge and surrounding roadways:
In 2006, the Minnesota Department of Transportation (MnDOT) commissioned a study on ways to rectify some or all of these issues. Some of the options that were presented included:
In addition, the collapse of the I-35W Mississippi River bridge in Minneapolis, on August 1, 2007 led to the effort by MnDOT to replace or modify "fracture-critical" bridges in the state.[2] A concrete box girder bridge design was ultimately selected; with construction beginning January 2013. See also{{Portal|Bridges|Minnesota|Wisconsin}}
References1. ^{{cite web|url=http://www.dot.state.mn.us/dresbachbridge/|title= Dresbach Bridge|publisher=Minnesota Department of Transportation}} {{Crossings navbox2. ^{{Cite news|url=http://lacrossetribune.com/news/local/minnesota-wisconsin-celebrate-completion-of-i--bridge/article_4c810c59-8678-56cb-a34a-e27ef81e07b2.html|title=Minnesota, Wisconsin celebrate completion of I-90 bridge|last=Hubbuch|first=Chris|date=|work=|newspaper=La Crosse Tribune|access-date=2017-01-10|via=}} |structure = Crossings |place = Mississippi River |bridge = I-90 Mississippi River Bridge |bridge signs = |upstream = North Channel Bridge |upstream signs = Main Channel Bridge |downstream = La Crosse Rail Bridge |downstream signs = Canadian Pacific Railway }} 12 : Road bridges in Minnesota|Bridges over the Mississippi River|Interstate 90|Bridges completed in 1967|Bridges on the Interstate Highway System|Plate girder bridges|Road bridges in Wisconsin|Steel bridges in the United States|Box girder bridges in the United States|Buildings and structures in La Crosse County, Wisconsin|Buildings and structures in Winona County, Minnesota|Interstate vehicle bridges in the United States |
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