Castleton Bridge

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Castleton Bridge is a cantilever truss bridge over the Hudson River in New York. It connects Coeymans in Albany County with Schodack in Rensselaer County and carries the Berkshire Connector portion of the New York State Thruway. It is also known as the Castleton-on-Hudson Bridge and sits near the Alfred H. Smith Memorial Bridge, which carries rail traffic.

The four-lane bridge is part of the longest stretch of the Thruway that is not designated as an Interstate, between exits 21A (I-87) and B1 (I-90). Tolls are collected as part of the Thruway’s closed toll system, currently about $1.05 per crossing in either direction (about $1.00 with E-ZPass).

Castleton Bridge opened on May 26, 1959, to coincide with the Berkshire Section’s connection to the Massachusetts Turnpike. Its main span is 182 meters (597 feet) long and the clearance below is 135 feet (41 meters).

Past notes include painting work by L-Tech Coatings in 1985–1986. In May 2007, the bridge carried about 14,500 vehicles per day.

There have been discussions about diverting peak-hour I-90 traffic to the Castleton Bridge to reduce congestion on the Patroon Island Bridge. In 2023, a $47.6 million project began, including deck replacement on the westbound lanes, deck repairs on the eastbound lanes, center median replacement, and bridge steel repairs.

The bridge is maintained by the New York State Thruway Authority (NYSTA).