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]
Siouxland Veterans Memorial Bridge | |
|---|---|
 Siouxland Veterans Bridge, seen from the Nebraska side | |
| Coordinates | 42°29′15″N 96°24′49″W / 42.48750°N 96.41361°W |
| Carries |  US 77 |
| Crosses | Missouri River |
| Locale | Sioux City, Iowa, and South Sioux City, Nebraska |
| Characteristics | |
| Design | Through arch bridge |
| Total length | 1,502.4 feet (457.9 m) |
| Width | 63.0 feet (19.2 m) |
| Longest span | 425.2 feet (129.6 m) |
| Clearance above | 17.1 feet (5.2 m) |
| History | |
| Opened | 1981 |
| Statistics | |
| Daily traffic | 28,600 |
| Location | |
 | |
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
edit- ^ "Historic Bridges of the U.S. - Missouri River U.S. 77 Bridge". Bridgehunter.com.
- ^ 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) - ^ Linck, Michele (August 3, 2007). "Sioux City bridges have had their troubles, too". Sioux City Journal. Retrieved 2010-10-19.
- ^ Weeks, John A. "Siouxland Veterans Memorial Bridge". John A. Weeks III. Retrieved 2010-10-19.
- ^ Hanson, J. M.; Koob, M. J.; Blake, G. T. (1988). "Tie girder fracture in Siouxland Veterans Memorial Bridge". Transportation Research Record (1180).
External links
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- Historic American Engineering Record (HAER) No. IA-1, "Pacific Shortline Bridge, U.S. Route 20 spanning Missouri River, Sioux City, Woodbury County, IA", 100 photos, 5 measured drawings, 59 data pages, 8 photo caption pages of previous bridge
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