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superstructures

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Superstructures. View of Drainage chamber of Wallkill pressure tunnel. ... Contract 117. July 6, 1916.

Superstructures. View of Drainage chamber of Wallkill pressure tunnel....

Public domain photo of a monument, historic place, free to use, no copyright restrictions image - Picryl description

Superstructures. Breakneck Gaging chamber, located south of Breakneck grade tunnel, in Putnam county, N.Y. Contracat 109. August 29, 1916.

Superstructures. Breakneck Gaging chamber, located south of Breakneck ...

Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description

Superstructures. View of Lower gate-chamber superstructure of concrete-stone, at Ashokan reservoir. Note reinforced-concrete roof tiles. Beaver Kill dikes in background. Contracts 124 and 145. August 31, 1917.

Superstructures. View of Lower gate-chamber superstructure of concrete...

Public domain photograph of industrial architecture, factory building, free to use, no copyright restrictions image - Picryl description

Superstructures. Wallkill Gaging chamber, located south of Wallkill pressure tunnel, in Ulster county, N. Y.  Contract 117. July 6, 1916.

Superstructures. Wallkill Gaging chamber, located south of Wallkill pr...

Public domain image of watercolor painting from British-related collections, free to use, no copyright restrictions - Picryl description

Superstructures. Wallkill blow-off chamber. Superstructure of  brick with concrete-stone trimming and reinforced -concrete roof tiles. Contract 117. August 21, 1917.

Superstructures. Wallkill blow-off chamber. Superstructure of brick w...

Public domain photo of a monument, historic place, free to use, no copyright restrictions image - Picryl description