Cofferdam After Flood
Grading Around House and Stable
Aspinwall Pumping Station Construction
Gravel Separating Plant
Aspinwall Pumping Station
Aspinwall Pumping Station
Aspinwall Pumping Station
Agnew Avenue and Lincoln Avenue
Aspinwall Pumping Station
High Water at Coal Trestle
Aspinwall Water Treatment Plant
Aspinwall Pumping Station
Aspinwall Pumping Station
Aspinwall Pumping Station
Aspinwall Pumping Station
Chimney
Allegheny River Conditions
Aspinwall Pumping Station
Aspinwall Pumping Station
Fatal Accident in Aspinwall Pumping Station
Excavation of Gallery No. 1
Concrete Mixer
Filtration Plant Progress
Aspinwall Pumping Station
Basin No. 1
Excavation and Backfill at the Reservoir
Filtration Plant Progress
Aspinwall Pumping Station