with the B35 converted to articulated buses as of September 1, 2018. Fleet New Flyer C40LF CNG New Flyer XN40 CNG New Flyer XN60 CNG Routes Local Routes: Articulated Local Routes: Spring Creek Depot The Spring Creek Depot is located on Flatlands Avenue east of Crescent Street in the Spring Creek subsection of Brooklyn's East New York neighborhood (), adjacent to the Brooklyn General Mail Facility, and several blocks northeast of the Gateway Center. The depot was built by and owned by the New York City Department of Transportation in 1996, and leased to the Command Bus Company. It was sold to MTA Bus in early 2009. Command's previous depot was several blocks to the northwest on Montauk Avenue and Wortman Avenue (612/626 Wortman Avenue), which now houses the school bus operations of the successor company Varsity Bus Company. In 1988, two Orion I Command buses were fitted by the Brooklyn Union Gas Company with engines that operated on compressed natural gas (CNG). A compressor station was installed at the Wortman Avenue depot. By the mid-1990s, many of the buses operated by Command ran on CNG. Local buses out of this depot continue to operate on compressed natural gas under the MTA. Fleet New Flyer C40LF CNG MCI D4500CL MCI D4500CT Prevost X3-45 Routes Local Routes: Express Routes: Ulmer Park Depot The Ulmer Park Depot is located at 2449 Harway Avenue in the neighborhood of Bath Beach, Brooklyn (). The depot fills the block bounded by 25th Avenue, Bay 38th Street (which is closed to the public), Harway Avenue, and Bath Avenue. Land for the depot was acquired in 1947, and the facility was constructed in the late 1940s, opening for operation on January 15, 1950. It is a single story steel-framed building with a brick exterior. It was rehabilitated in 1983 and 1989. This is the only NYCTA depot in Brooklyn to maintain express buses, storing a total of 285 buses. Ulmer Park is notable for rebuilding, repairing, and housing NYCT Bus 2185, a MCI express coach which was badly damaged during the September 11 attacks in 2001. On June 28, 2020, the B1 bus route converted to an articulated bus route. The name Ulmer Park is a reference to the Ulmer Park resort, operated by William Ulmer of the William Ulmer Brewery in Bath Beach from 1893 to 1899. Fleet New Flyer XD40 New Flyer XD60 Prevost X3-45