Politics of New York City the city's main post office. The post office stopped 24-hour service beginning on May 9, 2009 due to decreasing mail traffic. Brooklyn, The Bronx, and Staten Island each have central and/or main post offices. Queens has three, each serving one of the former townships of Queens County. New York City also has federal buildings in downtown Manhattan that house buildings for the United States Attorney and the FBI. New York's military installations include the United States Army post of Fort Hamilton located in the Bay Ridge section of Brooklyn under the shadow of the Verrazano-Narrows Bridge. The bridge spans the
Staten Island Tunnel funded by the city, the tunnel was expected to help expand the then-sparsely populated borough in a similar manner to the population and development explosions seen in Brooklyn and the Bronx. Under the Dual Contracts, three routes were proposed—two to Brooklyn and one to Manhattan—which would connect the Staten Island Railway's rapid transit service (SIRT) to existing subway lines. The Manhattan proposal, often called the "direct route," would have connected with the Interborough Rapid Transit Company (IRT)'s lines under Battery Park, near the current Brooklyn–Battery Tunnel. "Direct Route A" would have utilized a five-section tunnel under the New York Harbor,