Thirtieth Street Station, Power Director Center, Thirtieth & Market Streets in Amtrak Railroad Station, Philadelphia, Philadelphia County, PA
Significance: It was designed to visually and aurally indicate the operating status of the railroad's power system. This particular power director center monitored and supervised operation of all switches in the railroad's power control system from North Philadelphia to Wilmington, Delaware. The power directors working at this site oversaw the continually updated the electrical status of the system...
Survey number: HAER PA-404-A
Building/structure dates: 1935 Initial Construction