Siouxland Veterans Memorial Bridge

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Siouxland Veterans Memorial Bridge
South Sioux City, Nebraska Veterans Bridge from Nebr 2.JPG
Siouxland Veterans Bridge, seen from the Nebraska side
Coordinates 42°29′15″N96°24′49″W / 42.48750°N 96.41361°W / 42.48750; -96.41361
CarriesUS 77.svg US 77
Crosses Missouri River
Locale Sioux City, Iowa, and South Sioux City, Nebraska
Characteristics
Design Through arch bridge
Total length1,502.4 feet (457.9 m)
Width63.0 feet (19.2 m)
Longest span425.2 feet (129.6 m)
Clearance above 17.1 feet (5.2 m)
History
Opened1981
Statistics
Daily traffic 28,600
Location
Siouxland Veterans Memorial Bridge

The Siouxland Veterans Memorial Bridge is a through arch bridge which carries U.S. Route 77 across the Missouri River between Sioux City, Iowa, and South Sioux City, Nebraska. [1]

Contents

The bridge replaced the Combination Bridge, so called because it carried both rail and highway traffic, built in 1896. The previous bridge was documented by the Historic American Engineering Record in 1980, prior to its replacement. [2]

The current bridge was dedicated in July 1981, and the previous one was demolished. However, in May 1982 a 32-inch (810 mm) crack was discovered in the downstream tie girder. The bridge was hurriedly closed, and measures taken to ensure that it would not collapse into the river, affecting barge traffic. Initially, it was estimated that repairs would take six days; in fact, the bridge was completely closed for seven months, and did not fully re-open to traffic until May 1983. [3] [4] [5]

See also

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References

  1. "Historic Bridges of the U.S. - Missouri River U.S. 77 Bridge". Bridgehunter.com.
  2. Dennett, Muessig & Associates, Ltd. (1980). "Pacific Shortline Bridge" (PDF). Historic American Engineering Record . Washington, D.C.: Library of Congress. Retrieved December 19, 2020.{{cite web}}: CS1 maint: multiple names: authors list (link)
  3. Linck, Michele (August 3, 2007). "Sioux City bridges have had their troubles, too". Sioux City Journal. Retrieved 2010-10-19.
  4. Weeks, John A. "Siouxland Veterans Memorial Bridge". John A. Weeks III. Retrieved 2010-10-19.
  5. Hanson, J. M.; Koob, M. J.; Blake, G. T. (1988). "Tie girder fracture in Siouxland Veterans Memorial Bridge". Transportation Research Record (1180).