Dunn Memorial Bridge

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 1967 to replace an earlier span bearing the same name, the highway bridge has a steel girder design. 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 and is the southernmost toll-free road crossing of the Hudson.

While traveling eastbound on the Dunn Memorial Bridge towards the City of Rensselaer, there is a noticeable stub where the road ends and traffic is "forced off" the bridge onto offramps for US Routes 9 and 20. The road was originally supposed to continue on as part of the canceled South Mall Expressway to Interstate 90 at present day Exit 8.

Rensselaer's Riverfront Park is located under the eastern end of the bridge. Peregrine falcons have been observed nesting under the roadway since 1998, and the New York State Department of Environmental Conservation set up a webcam to monitor them.

On July 27, 2005, the bridge was temporarily closed when a ramp leading to the Empire State Plaza split vertically, causing the roadbed to drop more than a foot. A section of the ramp, which at 89 feet (27 m) tall is the uppermost one connecting to the bridge, had slipped and come to rest on a concrete supporting pier. The Department of Transportation was alerted to the situation by a call from a commuter who had driven over the gap. Two steel towers were installed to support the ramp and it was later repaired.

• The original Dunn Memorial Bridge can be seen in the background of this image

• thumb|left|The stubs at the bridge's eastern end, built for the canceled South Mall Expressway.