Also known as the McKenzie River Bridge is that Belknap Bridge in the Rainbow community, in the state of Oregon. This covered bridge, built in 1966, crosses the McKenzie River and is the fourth covered bridge that was constructed in the site and is still open to vehicular traffic.

Lane County is rich with covered bridges. In fact, it has the most surviving covered bridges in any other county located west of the Mississippi River. The Belknap Bridge is actually one of the seventeen bridges in the county.

The Howe truss Belknap Bridge stands on a site where there has always been a covered bridge ever since the 1890s. This helped the structure gain a spot in the National Register of Historic Places.