Plans for the Brooklyn–Battery Tunnel date back to the 1920s. Official plans to build the tunnel were submitted in 1930 but were initially not carried out. The New York City Tunnel Authority, created in 1936, was tasked with constructing the tunnel. After unsuccessful attempts to secure federal funds, New York City Parks Commissioner Robert Moses proposed a Brooklyn–Battery Bridge. However, the public opposed the bridge plan, and the US Army Corps of Engineers (USACE) rejected the plan several times out of concern that the bridge would impede shipping access to the Brooklyn Navy Yard. This prompted city officials to reconsider plans for a tunnel. Construction on the Brooklyn–Battery Tunnel started on October 28, 1940, but its completion was delayed due to World War II-related material shortages. The tunnel officially opened on May 25, 1950. (Source: Wikipedia)