Alsea Bay Bridge
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The Alsea Bay Bridge is a concrete arch bridge that spans the Alsea Bay on U.S. Route 101 (US 101) near Waldport, Oregon.
History
There have been two bridges on this site.
The first bridge was designed by Conde McCullough and opened in 1936. It was a Script error: No such module "convert". reinforced-concrete combination deck and through arch bridge.
The hostile environment caused significant corrosion to the steel reinforcements. In 1972 the Oregon Department of Transportation began projects aimed at extending the life of the bridge. By the mid-1980s it was decided to replace the bridge rather than continue costly rehabilitation efforts.[1] The first bridge was demolished in 1991. Construction of the second bridge, designed by HNTB, began in 1988, and it was opened in the fall of 1991 at a cost of $42.4 million. The bridge is Script error: No such module "convert". in total length, with a Script error: No such module "convert". main span that provides Script error: No such module "convert". of vertical clearance. The bridge has a latex concrete deck and the piers are significantly thicker than normal in an attempt to thwart corrosion. Its life expectancy is 75 to 100 years.
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See also
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- List of bridges documented by the Historic American Engineering Record in Oregon
- List of bridges on U.S. Route 101 in Oregon
References
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External links
- Pages with script errors
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- Through arch bridges in the United States
- Bridges completed in 1991
- Bridges completed in 1936
- U.S. Route 101
- Concrete bridges in Oregon
- Road bridges in Oregon
- Historic American Engineering Record in Oregon
- Bridges by Conde McCullough
- 1936 establishments in Oregon
- Bridges of the United States Numbered Highway System
- Bridges in Lincoln County, Oregon