Umpqua River Bridge, Historic swing bridge in Reedsport, US.

The Umpqua River Bridge is a swing bridge spanning across the Umpqua River in Reedsport. The structure features a rotating middle section and heavy concrete arches that support the entire span across the waterway.

Construction took place between 1934 and 1936 as a Public Works Administration project during the economic depression. It changed how people and goods moved through coastal Oregon by improving road connections.

The bridge was one of many projects by Conde McCullough, Oregon's Master Bridge Designer and Builder. Its opening on July 3, 1936, went without a dedication ceremony because President Franklin Roosevelt was unavailable, so the event was postponed indefinitely. It was finally dedicated at 3 pm on September 8, 2011, for its 75th anniversary, with a ribbon cutting and cars from the 1910s, 1920s and 1930s crossing the span.

The bridge sits at milepoint 211.11 of U.S. Route 101, with its north end in Bolon Island Tideways State Scenic Corridor and its south end inside Reedsport city limits. Drivers and walkers should expect brief stops when the swing span opens for river traffic.

This is the last remaining swing-span bridge still operating in Oregon's state highway system, actively rotating to allow ships to pass through. The engineer Conde B. McCullough designed it with careful attention to both structural strength and visual balance.