[2] The authority operates the Delaware Memorial twin suspension bridges, the Cape May-Lewes Ferry between Cape May, New Jersey, and Lewes, Delaware, the Forts Ferry Crossing, and the Salem County Business Center.

The department is mainly responsible for the Delaware Memorial Bridge and surrounding highway, but also provides police services at the Wilmington Airport (and the Corporate Complex located adjacent to the Wilmington Airport), the Civil Air Terminal at Dover Air Force Base, Delaware Airpark in Dover, the Forts Ferry Crossing in Delaware City, the Cape May−Lewes Ferry, Millville Municipal Airport and Cape May Airport.

The compact authorized the DRBA to operate the Delaware Memorial Bridge and to form its own police force.

In 1964 a ferry service between Cape May, New Jersey, and Lewes, Delaware, was begun by the DRBA.

In April 1984 a police station was opened in Cape May establishing a security presence.