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The Alsea Bay Bridge is a concrete
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 continuing costly rehabilitation efforts. The first bridge was demolished in 1991.
Construction of the second bridge, designed by
Photos
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Alsea Bay Bridge Interpretive Center
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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 {{UShighway-stub
arch bridge
An arch bridge is a bridge with abutments at each end shaped as a curved arch. Arch bridges work by transferring the weight of the bridge and its loads partially into a horizontal thrust restrained by the abutments at either side. A viaduct ...
that spans the Alsea Bay
Alsea Bay is a body of water near Waldport, Oregon at the mouth of the Alsea River. It is a site for beach angling. It is spanned by the Alsea Bay Bridge and is in Lincoln County, Oregon
Lincoln County is one of the 36 counties in the U.S. sta ...
on U.S. Route 101 (US 101) near Waldport, Oregon
Waldport is a city in Lincoln County, Oregon, United States. The population was 2,033 at the 2010 census. The city is located on the Alsea River and Alsea Bay, south of Newport and north of Yachats.
History
Settlement of Waldport began in 1 ...
.
History
There have been two bridges on this site. The first bridge was designed byConde McCullough
Conde Balcom McCullough (May 30, 1887 – May 6, 1946) was an American civil engineer who is primarily known for designing many of Oregon's coastal bridges on U.S. Route 101. The native of South Dakota worked for the Oregon Department of Tr ...
and opened in 1936. It was a long, reinforced-concrete combination deck and through arch bridge
An arch bridge is a bridge with abutments at each end shaped as a curved arch. Arch bridges work by transferring the weight of the bridge and its loads partially into a horizontal thrust restrained by the abutments at either side. A viaduct ...
.
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 continuing costly rehabilitation efforts. The first bridge was demolished in 1991.
Construction of the second bridge, designed by HNTB
HNTB Corporation is an American infrastructure design firm. Founded in 1914 in Kansas City, Missouri, HNTB began with the partnership made by Ernest Emmanuel Howard with the firm Waddell & Harrington, founded in 1907.
Considered as one of the m ...
, began in 1988, and it was opened in the fall of 1991 at a cost of $42.4 million. The bridge is in total length, with a main span that provides 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.
See also
* * * *List of bridges documented by the Historic American Engineering Record in Oregon
__NOTOC__
This is a list of bridges documented by the Historic American Engineering Record in the US state of Oregon.
Bridges
See also
*List of tunnels documented by the Historic American Engineering Record in Oregon
Notes
References
{{HA ...
* List of bridges on U.S. Route 101 in Oregon
References
External links
Photos
* *
Alsea Bay Bridge Interpretive Center
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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 {{UShighway-stub