Excavation of Gallery No. 1
City of Pittsburgh Filtration Plant construction progress showing the excavation of Gallery No. 1, looking northeast.
August 8th, 5
City of Pittsburgh Filtration Plant
Pittsburgh City Photographer Collection
Pittsburgh City Photographer Collection, 1901-2002, AIS.1971.05, Archives Service Center, University of Pittsburgh
Waterworks--Pennsylvania--Pittsburgh--Design and construction.; African American blue collar workers--Pennsylvania--Pittsburgh.; Steam shovels.; Excavating machinery.; T.A. Gillespie Co.; Lincoln-Lemington-Belmar (Pittsburgh, Pa.).
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