Hayden Bridge, Historic covered bridge on Alsea River, Oregon, United States.

Hayden Bridge is a historic wooden crossing that spans the Alsea River using a Howe truss frame with a protective roof running its full length. The structure features wooden planks for its roadway and demonstrates the classic building style of covered bridges from the early 20th century.

The bridge was built in 1918 and stands among the seven remaining covered bridges in Oregon constructed before 1920. It received recognition on the National Register in 1979, marking its importance as a surviving example of early engineering in the region.

The bridge's name comes from Hayden Road, the rural lane it carries just south of Oregon Route 34. It is one of more than 600 covered bridges once found in Oregon, of which only about 50 remain, and the surviving spans are now valued as tourist attractions. Similar crossings such as Mill Creek Bridge once spanned the Alsea and its tributaries nearby, but only Hayden Bridge has survived.

Reach the bridge via Hayden Road, just south of Oregon Route 34 about 2 miles west of Alsea. The span carries vehicles, so watch for traffic when walking through; openings under the side-wall eaves let daylight into the interior. Repairs followed a 2003 fix and a 2006 logging-truck crash.

The 1945 rebuild replaced the original rounded portals with larger, squarer openings to let bigger vehicles through, and narrow gaps under the side-wall eaves were left to light the interior. A logging truck struck the span in 2006, prompting repairs three years after the 2003 work.