Demolition of the warehouses that lined the eastern, or inland, side of Furman Street began in the fall of 1946, and construction of a triple cantilever section followed for the next few years. The southern half of the Promenade was opened to the public on October 7, 1950, The highway itself was not ready for traffic until 1954. Apprehensions by many Brooklyn Heights residents that the Promenade as a public attraction would bring noisy disruptions and crime to the area were soon dissipated as it became a popular destination for residents and tourists alike. With the Promenade's success, various claims were made for who originated the idea. A proposal by the landowner and early developer
Hezekiah Pierrepont in about 1827 for a promenade along the bluff of the Heights figures nowhere in the correspondence over the proposed highway. Other claims for and by Heights residents and others also lack documentation. One member of the
Andrews & Clark team, the engineer
S. Starr Walbridge, in 1982 claimed unequivocally that he had conceived both the cantilevering and the Promenade. However, the project's chief engineer,
Ernest J. Clark, disputed his claim, contending that the design was a team effort and had "evolved" through considering various means of supporting the highway and testing their stresses and appearance. The firm's artist Julian Michele, the man who did the renderings of the designs and whom Walbridge cited for corroboration, declined comment. Another engineer,
Phillips H. Lovering, who was credited with mathematically working out the precise shapes of the cantilevers, agreed with Clark's view. In 1953 a new concern arose when it was learned that the
Port Authority of New York and New Jersey, which owned the warehouses still lining the west, or harbor, side of Furman Street, wished to reserve the right to replace them with structures up to 70 feet in height, or 20 feet higher than the level of the Promenade. The prospective loss of views from the still-new Promenade caused an outpouring of protest unprecedented for that time, and a rare "town hall" meeting was held at
Brooklyn's Borough Hall on May 7, 1953. Among officials on the dais were Cashmore, Moses, and Austin Tobin, executive director of the Port Authority. They met the audience's questions and demands with evasiveness. Moses afterward responded to a letter questioning his position by writing, "The city cannot do a piece of spot zoning simply protecting this particular view." Nevertheless, the city on June 25 did just that, limiting structures across from the Promenade to a height of 50 feet. It went further in 1974 by enacting a "Special Scenic District" that imagined a "view plane" for a
protected view extending from the edge of the Promenade to a line roughly midway in the East River that no new structure could pierce. This remains in effect, and is the only such in the city, although another has been proposed for
Battle Hill. The remaining warehouses were demolished in the late 1950s, opening up what still had been partly obstructed views. ==21st century==