Hamma Hamma River bridges

The Hamma Hamma River Bridges are two bridges that span the north and south forks of the Hamma Hamma River respectively. They were built as part of the Olympic Loop Highway, which is now U.S. Highway 101. Both bridges can be found on the National Register of Historic Places or National Register of Historic Places listings in Mason County, Washington.

North and South Hamma Hamma Bridges
North Bridge
CarriesVehicular traffic
CrossesNorth and South Fork, Hamma Hamma River
LocaleEldon, Washington, U.S.
OwnerThe Washington State Department of Transportation
History
Engineering design byThe Washington State Department of Transportation
Fabrication byColonial Building Company of Spokane
BuiltNorth - 1923 South - 1924
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