Manages transit, buses, subways, trains, bridges and tunnels in New York City and surrounding areas including Long Island.

Manages bridges, tunnels, airports and transit in New York City and Northern New Jersey.

Extensively covers crossings.

History and current information on the infrastructure in the Philadelphia metropolitan area.

The official site for the Woodrow Wilson Bridge replacement project on the Capital Beltway on the south edge of Washington, D.C.

Descriptive histories.

A listing of the structures. Includes histories and photographs.

Covers the movement to toll the East River bridges in New York City.

Official website of one of the few privately owned bridges left in America. History, photos, tolls, and directions.