Coordinates: 42°29′55″N 90°39′01″W / 42.49861°N 90.65028°W / 42.49861; -90.65028

Dubuque Rail Bridge

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Dubuque Rail Bridge
File:Dubuque Iowa Rail Bridge.jpg
The Dubuque Railroad Bridge.
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CarriesSingle rail track
CrossesMississippi River
LocaleDubuque, Iowa and East Dubuque, Illinois
Maintained byCanadian National Railway
Characteristics
DesignTruss Bridge with Swing-span
History
OpenedDecember 1868
Location
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The Dubuque Rail Bridge carries a single rail line across the Mississippi River between Dubuque, Iowa, and East Dubuque, Illinois, near river mile 580. It is currently operated by Canadian National Railway as a result of their 1999 purchase of Illinois Central Railroad.

History

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File:Dunleith & Dubuque Bridge Co. 18xx.jpg
Share of the Dunleith & Dubuque Bridge Co., unissued

The original swing bridge was constructed by Andrew Carnegie and operated by the Dunleith & Dubuque Bridge Company. Going into service in December 1868,[1] it primarily was used by the Illinois Central Railroad. It was rebuilt in the 1890s.

The current Dubuque Rail Bridge has 5 spans and a swing-span. It has been altered somewhat over the years, with last rehabilitation in 2012, but so far has retained the fixed center pier.[2]

Operation

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File:Dubuque rail bridge.jpg
Dubuque rail bridge
File:Dunleith and Dubuque Bridge Company - System Index Map.jpg
1915 map of the Dunleith and Dubuque Bridge Company

Because of a 150-foot (46 m) bluff very close to the Mississippi riverbank on the Illinois side, about 1/2 mile south of the bridge the approaching railroad track diverges away from the main tracks (and the river) to enter a 1/4-mile tunnel, which then curves about 90-degrees so the bridge track can cross the continuing tracks running adjacent to the river.[3]

See also

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References

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