A train derailed while crossing a temporary wooden trestle in Woodbridge, New Jersey, causing 85 deaths.

On February 6, 1951, a Pennsylvania Railroad train derailed on a temporary wooden trestle in Woodbridge, New Jersey, United States, killing 85 passengers. It remains New Jersey's deadliest train wreck, the deadliest U.S. derailment since 1918 and the deadliest peacetime rail disaster in U.S. history.

A trestle bridge is a bridge composed of a number of short spans supported by closely spaced frames usually carrying a railroad line. A trestle is a rigid frame used as a support, historically a tripod used to support a stool or a pair of isosceles triangles joined at their apices by a plank or beam such as the support structure for a trestle table. Each supporting frame is a bent. A trestle differs from a viaduct in that viaducts have towers that support much longer spans and typically have a higher elevation.

Woodbridge Township is a township in northern Middlesex County, in the U.S. state of New Jersey. The township is a regional hub of transportation and commerce for central New Jersey and a major bedroom suburb of New York City, within the New York metropolitan area. Located within the core of the Raritan Valley region, Woodbridge Township hosts the junction of the New Jersey Turnpike and the Garden State Parkway, the two busiest highways in the state, and also serves as the headquarters for the New Jersey Turnpike Authority, which operates both highways.