All Untagged Photos
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Cofferdam Construction
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Contact Baffles
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High Water in Boiler House
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Engineers' Society of Western Pennsylvania
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Allegheny River Bank
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Aspinwall Pumping Station
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Forms
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Boiler Room
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Construction Progress
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Cofferdam
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Intake Excavation
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Breaking Pipe
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Hospital Road
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Flood Damage
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Cofferdam No. 2
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Brilliant Pumping Station
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Man and Hydraulic Valve
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Calculation Book
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Gallery No. 4
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Front Entrance to Administration Building
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Construction at the Reservoir
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Filtration Division
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City Waterworks Reservoir
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Balance Beams
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Flood Damage
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Aspinwall Pumping Station Construction
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Idyllic View
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City Waterworks Reservoir