Local Information

WSDOT seeks owner for historic SR 508 South Fork Newaukum River Bridge

Monday, November 21, 2016 - 14:21

Contacts:    Tamara Greenwell, communications, 360-905-2056

                   Joanna Lowrey, project engineer, 360-442-1350

WSDOT seeks owner for historic SR 508 South Fork Newaukum River Bridge

ONALASKA – After 86-years of service, the State Route 508 South Fork Newaukum River Bridge is ready for retirement and in need of a new home.

The Washington State Department of Transportation will begin construction to replace the aging structure near Onalaska with a modern bridge next year. In an effort to preserve a piece of state transportation history, a new owner is being sought to move the bridge to a new location.

The existing SR 508 South Fork Newaukum River Bridge is one of 13 pony truss bridges over 50 years old remaining on public roadways or recreation trails in Washington state. WSDOT is making the bridge’s 90-foot steel Warren pony trusses available for reuse because the bridge is eligible for listing on the National Register of Historic Places.

Information for interested parties

The new owner will be responsible for removing and relocating the bridge as-is, protecting the environment during the move, and reusing the trusses in a way that preserves historic relevance. The new owner will also assume all future legal and financial responsibility for the structure. Those who are interested should contact WSDOT for more information.

Why replace the bridge?

Marked by rust and corrosion, time has caught up with the South Fork Newaukum River Bridge. Following regular inspections, WSDOT took steps to reduce the strain on the bridge to keep the crossing open and safe for traffic until replacement work is complete. With load restrictions unable to deter heavy trucks, a temporary single-lane Bailey bridge was built over the existing structure in January 2015 and now serves the 1,400 drivers that use the route each day.

Next steps

Construction of a concrete replacement bridge that meets current engineering and safety standards is scheduled to begin next summer, and open to traffic in 2018.

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