embankment to eliminate dangerous grade crossings. The Forest Hills viaduct was designed by Frederick Law Olmsted as an important element of the Emerald Necklace. Five new local stations in Dorchester and Jamaica, including Forest Hills, opened on June 1, 1897. The station building at Forest Hills was similar to the still-extant station at Norwood Central, built two years later. Elevated station On November 22, 1909, the Washington Street Elevated was extended from to Forest Hills, with a grand elevated station and a maintenance facility located between Hyde Park Avenue and the mainline tracks. As with most Boston Elevated Railway stations, Forest Hills was designed for efficient streetcar-to-elevated transfers; Forest Hills and nearby Arborway became major streetcar hubs. Designed by Edmund M. Wheelwright, the station was called "the chef-d'œuvre of rapid transit development in Boston". The New Haven Railroad briefly operated high-frequency local service from Forest Hills to South Station, but it failed to compete with the El and was cut back. The five local stops were abandoned on September 29, 1940. The Forest Hills stop alone was revived in June 1973 for Needham Line service, although by 1976 it was used by less than 50 riders a day, versus 15,000 at the Elevated station. Southwest Corridor From 1979 to 1987, Forest Hills was completely rebuilt as an intermodal transfer station as part of the Southwest Corridor project. The project involved removing the century-old viaduct and moving the tracks into a trench with three mainline tracks plus two Orange Line tracks to replace the aging Washington Street Elevated. The new rapid transit stations mirror the locations of the former mainline stations between Forest Hills and Back Bay. Needham Line service was suspended on October 13, 1979; Providence/Stoughton Line and Franklin Line service (which do not stop) were rerouted over the Fairmount Line on November 3, 1979. The Forest Hills viaduct was destroyed with a controlled explosion on November 12, 1983; work on the new station began on June 1, 1984. The $38 million station, designed by Cambridge Seven Associates, was constructed of brick, steel and glass; it was meant to resemble a greenhouse to fit in with the surrounding parks. The station's $120,000 clock tower has become a local landmark; it is mirrored by four interior clocks. Orange Line service on the El ended on May 4, 1987, and began on the Southwest Corridor on May 7. The corridor reopened to