The Edison Bridge and the Vieser bridge are a pair of bridges that carry U.S. Route 9 in the state of New Jersey, spanning the Raritan River near its mouth in Raritan Bay. The bridge, which connects Woodbridge on the north with Sayreville on the south, was opened to weekend traffic starting on October 11, 1940, and was opened permanently on November 15, 1940. As of 2003, the bridge carries more than 82,000 vehicles daily and is owned and operated by the New Jersey Department of Transportation. It also runs directly parallel to the Driscoll Bridge, which carries the Garden State Parkway.

The Raritan River is a major river of New Jersey. Its watershed drains much of the mountainous area of the central part of the state, emptying into the Raritan Bay on the Atlantic Ocean.