The Dunn Memorial Bridge, officially known as the Private Parker F. Dunn Memorial Bridge, carries US 9 and US 20 across the Hudson River between Albany, New York and Rensselaer, New York. Completed in 1969 to replace an earlier span bearing the same name, the highway bridge has a steel girder design. It is the southernmost toll-free road crossing of the Hudson. It is named for Parker F. Dunn, an Albany native who was posthumously awarded the Medal of Honor for his service in World War I. * * The stubs at the bridge's eastern end, built for the canceled South Mall Expressway.