The Marion Memorial Bridge was a 4-span metal truss bridge which formerly carried U.S. Route 41 in Marion County, Tennessee. It was built in 1929. The main span was 369 feet, and the bridge had a total length of 1870 feet. The bridge was historic, and the Marion Memorial Bridge was listed on the National Register of Historic Places on October 25, 2007. The bridge featured an unusual truss configuration that is a hybrid of the Pratt and K-Truss configurations.