Photograph documents the construction of the Manhattan Railway Company's 74th Street Power Station. Exterior view of coal tower and coal conveyor bridge. A crane was used to hoist coal off barges on the river in to the coal tower. Coal then traveled on a conveyer system across the bridge to large bins in the top level of the powerhouse. From the bins the coal was dispersed through chutes to the furnaces below. This photograph is stored in Power Supply Album 10 (picture no. 1420) of 12 that documents the Manhattan Railway Company's electrification of its elevated trains.