The Lorimer Street Line is a public transit line in Brooklyn, New York City, United States, running along Lorimer Street, Franklin Avenue, and Classon Avenue between Bedford–Stuyvesant and Greenpoint. Originally a streetcar line, it is now the B48 bus route, operated by MTA New York City Bus' Grand Avenue Depot in Maspeth, Queens.
The B48 bus route runs between Classon Avenue and Fulton Street near the Prospect Park subway station in Bedford–Stuyvesant and Meeker Avenue and Stewart Avenue in Greenpoint via Lorimer Street, Franklin Avenue, and Classon Avenue at all times.
The route serves The Quadrangles, Lafayette Gardens, the Pratt Institute, Willoughby Walk, the Brooklyn Navy Yard, the Lindsay Park Houses, McCarren Park, and McGolrick Park. It also connects with the B24, B25, B26, B38, B41, B43, B44, B46, B49, B52, B54, B57, B60, B62, B65, Q54, and Q59 bus routes and the following subway stations: