Marquette–Joliet Bridge

The Marquette–Joliet Bridge is a bridge crossing the Mississippi River, connecting Marquette, Iowa and Prairie du Chien, Wisconsin. Local residents refer to the bridge as the Prairie Bridge or the Marquette Bridge; both terms are used equally.

Marquette–Joliet Bridge
The bridge seen from the north on the Iowa side
Coordinates43°02′38″N 91°10′33″W
Carries2 lanes of US 18
CrossesMississippi River
LocaleMarquette, Iowa and Prairie du Chien, Wisconsin
Other name(s)Marquette Bridge, Prairie Bridge
ID number000000000020515[1]
Characteristics
DesignTied arch bridge
Total length780.8 meters (2,561.7 ft)[1]
Width12.2 meters (40.0 ft)[1]
Longest span462 feet (141 m)
Clearance above8.71 meters (28.58 ft)[1]
Clearance below18.3 meters (60.0 ft)[1]
History
OpenedJune 1975
Location

The structure is an automobile bridge about three lanes wide, and is designed to accept Jersey barriers for deck service. It is located between the Black Hawk Bridge, about 40 miles (64 km) to the north upstream, and the Dubuque-Wisconsin Bridge some 60 miles (97 km) south. The bridge carries U.S. Route 18 from Iowa to Wisconsin.

The design of the bridge is a cable-supported tied arch bridge, with the two ends of the arch terminating at abutments located in the middle of the river.

In the winter after its opening, the bridge developed several cracks and had to be closed for repair. In more recent years, the approach on the Iowa side of the bridge was rebuilt as part of the U.S. 18 bypass that was built around Marquette and McGregor, Iowa.

See also

References

  1. Svirsky, Alexander (2008). "NBI Structure Number: 000000000020515". Retrieved 2008-02-22.
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