Brooklyn–Battery Tunnel $58 million. Detailed plans for the tunnel were released in May 1936. The project now consisted of a $60.3 million twin-tube bore from Red Hook, Brooklyn, to the Battery, Manhattan, as well as a $2.3 million bridge over the Gowanus Canal. The city approved these plans in January 1936. One civic group wanted to plan for future traffic volumes, so it asked the city to conduct further studies of the Brooklyn-Manhattan tunnel project. The tunnel was officially renamed the "Brooklyn–Battery Tunnel" in July 1936. In November of that year, Brooklyn Borough President Raymond Ingersoll and New York City Parks commissioner
Brooklyn Bridge series, historical walking tours, information tents, a series of lectures and readings, a bicycle tour of Brooklyn, a miniature golf course featuring Brooklyn icons, and other musical and dance performances. Just before the anniversary celebrations, artist Paul St George installed the Telectroscope, a video link between New York City and London, on the Brooklyn side of the bridge. The installation lasted for a few weeks and permitted viewers in New York City to see people looking into a matching telectroscope near London's Tower Bridge. A newly renovated pedestrian connection to the DUMBO neighborhood was also unveiled before the anniversary celebrations.