The Grave Creek covered span at Sunny Valley, about 15 miles north of Grants Pass, can be seen by motorists traveling Interstate 5. Features of the wooden structure include six gothic style windows on either side, concrete abutments, a Howe truss, rounded portals and a shake roof. The old wooden river crossing is the last covered bridge on the northsouth Pacific Highway system. Existing records on the Grave Creek Bridge show a contract awarded by the Oregon State Highway Department to J. Elmer Nelson in April 1920. Just four months later, traffic passed through its portals. The 105-foot Howe truss is supported by "dumb bell" concrete piers. Total cost of the construction, including the engineering fees, is listed at $21,128.