Office Covered Bridge
Lane County, in Westfir. Built 1944, 180 ft. long. Oregon's longest covered bridge; unusual triple Howe truss design.
The Office Bridge in Westfir, just west of Oakridge, is the longest covered bridge in Oregon at 180 feet and one of the longest in the entire United States. Built in 1944 to serve the Westfir Lumber Company's mill office, from which it takes its name, the bridge uses an unusual triple Howe truss configuration, an engineering approach rarely seen elsewhere, chosen to span the North Fork of the Middle Fork Willamette River in a single crossing without intermediate piers. A distinctive attached pedestrian walkway runs along one side, separated from vehicle traffic, and the bridge is painted a striking red-orange that has made it one of the most recognizable and widely photographed covered bridges on the West Coast. It carries local traffic across the river into Westfir and connects to trailheads for the Aufderheide National Scenic Byway and nearby forest recreation areas. Listed on the National Register of Historic Places on November 29, 1979, the Office Bridge has undergone structural rehabilitation to preserve its triple-truss system, and remains a centerpiece of Westfir's identity as well as a frequently featured Oregon landmark in tourism and photography.