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Creator Corporate Names
United States. Army. Corps of Engineers. Pittsburgh District.
Remove constraint Creator Corporate Names: United States. Army. Corps of Engineers. Pittsburgh District.
Subject Topical
Dams--Monongahela River (W. Va. and Pa.)--Planning.
Remove constraint Subject Topical: Dams--Monongahela River (W. Va. and Pa.)--Planning.
Subject Topical
Locks (Hydraulic engineering)--Monongahela River (W. Va. and Pa.)--Planning.
Remove constraint Subject Topical: Locks (Hydraulic engineering)--Monongahela River (W. Va. and Pa.)--Planning.
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