The Brooklyn Heights Promenade, a 1826ft-long platform and pedestrian walkway cantilevered over Interstate 278 in Brooklyn Heights, Brooklyn, in New York City, United States. With views of Lower Manhattan’s skyline and the New York Harbor, it came about as the unplanned byproduct of competing proposals for the highway’s route that were resolved in the midst of World War II. Actual construction came after the war. As a structure constructed over a roadway, the Promenade is owned by the NYCDOT and is not considered a park; however, NYC Parks maintains the entire Promenade.The Promenade runs between the Brooklyn Bridge and the ramp north of Atlantic Avenue. The walkway itself is curtailed at both ends. Due to the area’s topography, the Promenade is four stories; from top to bottom, they are the walkway, eastbound I-278, westbound I-278, and service road.PlanningThe need for a highway to connect the boroughs of Brooklyn and Queens predated the war. In 1939, a topographical engineer with New York’s then new City Planning Department mapped a route for such a highway that hewed quite closely to the East River waterfront of the two boroughs.