INDカルバー線が建設されたのはいつ？
As part of Contract 4 of the Dual Contracts, between the city and the BRT, a three-track elevated railway was built above the Culver Line from the Fifth Avenue Elevated southeast and south to Coney Island. At Ninth Avenue, the elevated replacements for the Culver Line and West End Line met, with access from both lines to the Fifth Avenue Elevated and Fourth Avenue Subway to the northwest. At 3:00 a.m. on March 16, 1919, the first portion of the new elevated structure opened from Ninth Avenue southeast and south to Kings Highway. Except for the omission of a station at 15th Avenue, all of the station locations from the surface line were preserved as elevated stations. The Culver Line was operated as a branch of the Fifth Avenue Elevated, with a free transfer at Ninth Avenue to the West End Line into the Fourth Avenue Subway. An extension to Avenue X was opened at noon on May 10, 1919. The line, the last of the four to Coney Island, was completed on May 1, 1920, at which time the Brooklyn Rapid Transit Company (BRT) was forced to cut the fare from ten to five cents. This construction tied into the existing lower level of the BMT Brighton Line east of West Eighth Street–New York Aquarium. Some Culver Line (5) trains began using the Fourth Avenue Subway to the Nassau Street Loop in Lower Manhattan when that line opened on May 30, 1931; the Fifth Avenue Elevated was closed on May 31, 1940, in conjunction with the unification of the transit system under city operations. Trolleys continued to use the surface tracks on McDonald Avenue until October 30, 1956.
May 10, 1919.