It was the first underwater subway tunnel connecting Manhattan and Brooklyn, with construction taking place between 1903 and 1907.

It goes over the East River and connects Brooklyn to Manhattan.

The Joralemon Street Tunnel, opened on January 1, 1908, was the first underwater subway tunnel connecting Manhattan and Brooklyn.

Mr. Spivey said the explosion occurred inside an area known as the Fulton Cranberry tube, which connects Manhattan and Brooklyn.

Nine of the lines connect Brooklyn and Queens to Manhattan, while two run from upper to lower Manhattan.

The curbside operators now connect Manhattan and Brooklyn to Boston, Washington, Philadelphia, Atlantic City and more than a dozen other destinations.

For example, the Brooklyn Bridge was completed in 1883 and connects Brooklyn and Manhattan across the East River.

As the agency studies the viability of a multibillion-dollar rail tunnel connecting New Jersey and Brooklyn, floating more rail cars appears to be a short-term solution.

There will be more and faster service on the N and R lines that connect Queens, Manhattan and Brooklyn, reducing travel time by 7 to 10 minutes.

(The Verrazano-Narrows Bridge, which connects Brooklyn and Staten Island, was completed in 1964.)