The Winant Avenue Bridge is a vehicular movable bridge spanning the Hackensack River in Bergen County, New Jersey 14 miles (23 km) from its mouth at Newark Bay. Built in 1934, it is also known as the Route 46 Hackensack River Bridge and S46 Bridge, it carries U.S. Route 46 (US 46) in Little Ferry and Ridgefield Park. Owned and operated by the New Jersey Department of Transportation (NJDOT), the double leaf bascule bridge is located on a navigable reach. While there have been no requests since 1978, the Code of Federal Regulations last amended in 1999 requires 24-hour notice to be opened.The bridge has been minimally altered since its construction and is eligible for individual listing on the National Register of Historic Places (NRHP).