New York Harbor that contains a museum and former

Baggage and dormitory

View from the north; the baggage and dormitory (right) is west of the main building (left)
The baggage and dormitory structure is a three-story structure located north of the main building.^[18][236] It is made of a steel frame and terracotta blocks, with a limestone base and a facade of brick in Flemish bond.^[254] Completed as a two-story structure c. 1908–1909,^{[126][129][136]} the baggage and dormitory building replaced a 700-bed wooden barracks nearby that operated between 1903 and 1911.^[254] The baggage and dormitory initially had baggage collection on its first floor, dormitories and detention rooms on its second floor, and a tiled garden on its roof.^[254][255] The building received a third story, and a two-story annex to the north side, in 1913-1914.^[254][255] Initially, the third floor included additional dormitory space while the annex provided detainees with outdoor porch space.^[255] A detainee dining room on the first floor was expanded in 1951.^[253]
The building is mostly rectangular except for its northern annex and contains an interior courtyard, skylighted at the second floor. On its facade the first story has rectangular windows in arched window openings while the second and third stories have rectangular windows and window openings. There are cornices below the second and third stories. The annex contains wide window openings with narrow brick piers outside them. The roof's northwest corner contains a one-story extension. Multiple wings connect the baggage and laundry to its adjacent buildings.^[254]
Powerhouse
The powerhouse of Ellis Island is a two-story structure located north of the kitchen and laundry building and west of the baggage and dormitory building. It is roughly rectangular and oriented north-south.^[18][236] Like the kitchen and laundry, it was completed in 1901.^{[122][256][257]} It is made of a steel frame with a granite base, a facade of brick in Flemish bond, and decorative bluestone and limestone elements. The hip roof contains dormers and is covered with terracotta tiling. A brick smokestack rises 111 feet (34 m) from ground level.^[254]
Formerly, the powerhouse provided almost all power for Ellis Island. A coal trestle at the northwest end was used to transport coal for power generation from 1901 to 1932, when the powerhouse started using fuel oil.^[254] The powerhouse also generated steam for the island.^[258] After the immigration station closed, the powerhouse deteriorated^[212] and was left unrepaired until the 1980s renovation.^[222] The powerhouse is no longer operational; instead, the island receives power from 13,200-volt cables that lead from a Public Service Electric & Gas substation in Liberty State Park. The powerhouse contains sewage pumps that can dispose of up to 480 U.S. gallons per minute (1,800 L/min) to the Jersey City Sewage Authority sewage system. A central heating plant was installed during the 1980s renovation.^[259]