Cofferdam Looking South
Cofferdam during flooding of Allegheny River, looking south. A cofferdam is a temporary structure created to expose areas that are normally underwater so that work, such as creating supports or repairs can be completed.
December 3rd, 5
Pittsburgh City Photographer Collection
Pittsburgh City Photographer Collection, 1901-2002, AIS.1971.05, Archives Service Center, University of Pittsburgh
Waterworks--Pennsylvania--Pittsburgh.; Cofferdams--Pennsylvania--Pittsburgh.; Floods--Pennsylvania--Pittsburgh.; Rivers--Pennsylvania--Pittsburgh.; Allegheny River (Pa. and N.Y.).; Lincoln-Lemington-Belmar (Pittsburgh, Pa.).
Public Domain - Anybody may use this photo for any purpose
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Copyright 2015 Dane Pieri