Wallkill pressure tunnel. View of steel arch forms and concrete platfo...
Picryl description: Public domain image of a chamber, cell, interior, underground vault architecture, free to use, no copyright restrictions.
Wallkill pressure tunnel. Concrete for walls of chamber over Drainage...
Public domain photograph of industrial architecture, factory building, free to use, no copyright restrictions image - Picryl description
Wallkill pressure tunnel. ... Contract 47. November 13, 1911.
Public domain photograph of the train tunnel, railroad, train track, free to use, no copyright restrictions image - Picryl description
Wallkill pressure tunnel. View showing completed concrete side-wall. N...
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
Wallkill pressure tunnel. ... Contract 47. May 25, 1910.
Picryl description: Public domain image of a construction site, works, 20th-century industrial architecture, free to use, no copyright restrictions.
Borings. Hand core-boring rig at work on line of Wallkill pressure tun...
Public domain photo of a monument, historic place, 19th century, free to use, no copyright restrictions image - Picryl description.
Wallkill pressure tunnel. ... Contract 47. May 25, 1910.
Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description
Wallkill pressure tunnel. Side-wall and arch forms in place ready for ...
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
Wallkill pressure tunnel. View showing "trailing" method of placing co...
Picryl description: Public domain image of a mining, coal mine, underground, free to use, no copyright restrictions.
Wallkill pressure tunnel. Transition section from cut-and-cover aquedu...
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
Wallkill pressure tunnel. End view of section of concrete lining with...
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
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
Wallkill pressure tunnel. View showing chamber over Shaft 1 with compl...
Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description
Wallkill pressure tunnel. View showing full-section steel forms in pla...
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
Wallkill pressure tunnel. Work of screeding concrete of invert in prog...
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
Wallkill pressure tunnel. View showing details of steel forms for conc...
Public domain photograph of the train tunnel, railroad, train track, free to use, no copyright restrictions image - Picryl description
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