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new york public library

catskill

construction

new york

new york state

water supply

new york n y board of water supply compiler

photographs of the catskill water supply system in process of construction

contract

public
348 media by topic ∙ page 1 of 4
Ashokan Reservoir. View showing concrete core-wall of North wing of Olive Bridge dam. At right, note the placing and compacting of earth embankment on the up-stream side. Contract 3. June 21, 1910.

Ashokan Reservoir. View showing concrete core-wall of North wing of Ol...

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

Kensico reservoir. View showing excavated V-shaped gorge at east end of dam foundation. Contract 9. March 28, 1913.

Kensico reservoir. View showing excavated V-shaped gorge at east end ...

Picryl description: Public domain image of a mine, mining, free to use, no copyright restrictions.

Organization. Hudson pressure tunnel. Mayor William J. Gaynor firing blast to connect East and West headings. In group, left to right, are Consulting Engineer John R. Freeman, Commissioner Charles Strauss, Chief Engineer J. Waldo Smith, Mayor Willian J. Gaynor and Commissioner John F. Galvin. Contract 90. January 30, 1912.

Organization. Hudson pressure tunnel. Mayor William J. Gaynor firing b...

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Kensico By-pass Aqueduct. ... Contract 55. November 22, 1910.

Kensico By-pass Aqueduct. ... Contract 55. November 22, 1910.

Public domain image of an arch structure, bridge, historic place ruins, classical architecture, free to use, no copyright restrictions - Picryl description

Coagulating plant. ... Contract 159. September 19, 1917.

Coagulating plant. ... Contract 159. September 19, 1917.

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

Wallkill pressure tunnel. ... Contract 47. May 25, 1910.

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.

Highways. Ashokan reservoir. ... Contract 151. October 26, 1914.

Highways. Ashokan reservoir. ... Contract 151. October 26, 1914.

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

Yonkers pressure tunnel. Contract 54. November 21, 1913.

Yonkers pressure tunnel. Contract 54. November 21, 1913.

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

Highways. Ashokan reservoir. ... Contract 151. June 9, 1914.

Highways. Ashokan reservoir. ... Contract 151. June 9, 1914.

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

Catskill Aqueduct Headworks. View of Screen chamber looking towards Lower gate-chamber. Contract 10. September 19, 1913.

Catskill Aqueduct Headworks. View of Screen chamber looking towards Lo...

Public domain image of an arch structure, bridge, historic place ruins, classical architecture, free to use, no copyright restrictions - Picryl description

Bridges. Kensico reservoir. ... Contract 9. April 15, 1916.

Bridges. Kensico reservoir. ... Contract 9. April 15, 1916.

Picryl description: Public domain vintage artistic photograph, free to use, no copyright restrictions image.

Ashokan Reservoir. View of Olive Bridge dam showing down-stream face of masonry section. Stone crusher and concrete mixing plant in left background. Contract 3. June 21, 1910.

Ashokan Reservoir. View of Olive Bridge dam showing down-stream face o...

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Wallkill North cut-and-cover. Interior of conpleted section of aqueduct. Contract 47. June 20, 1912.

Wallkill North cut-and-cover. Interior of conpleted section of aqueduc...

Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.

Ashokan Reservoir. View showing down-stream side of Glenford dike on top of which is located the relocated Ulster and Delaware Railroad tracks. Contract 60. April 28, 1914.

Ashokan Reservoir. View showing down-stream side of Glenford dike on t...

Picryl description: Public domain image of railroad tracks, railway, train car, free to use, no copyright restrictions.

Camps. Catskill aqueduct. ... Contract 17. January 20, 1910.

Camps. Catskill aqueduct. ... Contract 17. January 20, 1910.

Picryl description: Public domain image of a basement, underground, lobby, free to use, no copyright restrictions.

Kensico reservoir. View of up-stream face of dam. Derricks handle all masonry; cableways move derricks and other articles of plant. Contract 9. May 28, 1914.

Kensico reservoir. View of up-stream face of dam. Derricks handle all ...

Picryl description: Public domain image of a construction site, works, 20th-century industrial architecture, free to use, no copyright restrictions.

Yonkers pressure tunnel. Finished lining in foreground. Placing concrete in side-walls and arch in background. ... Contract 54. May 1, 1912.

Yonkers pressure tunnel. Finished lining in foreground. Placing concr...

Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.

Ashokan Reservoir. Placing concrete in cut-off trench under masonry portion of Olive Bridge dam. Note grout pipes extending from concrete. Contract 3. October 3, 1908.

Ashokan Reservoir. Placing concrete in cut-off trench under masonry p...

Picryl description: Public domain image of historical building ruins, free to use, no copyright restrictions.

Croton Lake pressure tunnel. ... Contract 24. October 3, 1913.

Croton Lake pressure tunnel. ... Contract 24. October 3, 1913.

Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.

Elmsford tunnel. Timbering near North portal. Bench not excavated. Contract 52. April 25, 1912.

Elmsford tunnel. Timbering near North portal. Bench not excavated. Con...

Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.

Aerators. View looking towards Ashokan Screen chamber showing aerator with all nozzles in operation with a flow of 376 million gallons daily. Contract 10. June 18, 1917.

Aerators. View looking towards Ashokan Screen chamber showing aerator ...

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

Rondout pressure tunnel. ... Contract 12. October 6, 1910.

Rondout pressure tunnel. ... Contract 12. October 6, 1910.

Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.

Silver Lake reservoir. View of Gate-chamber in Middle dike showing walls partly comleted and pipes and special castings in place. Contract 89. October 15, 1914.

Silver Lake reservoir. View of Gate-chamber in Middle dike showing wa...

Picryl description: Public domain image of a damaged, burned, or destroyed building, natural disaster, war destruction, ruins, 19th-century architecture, free to use, no copyright restrictions.

Wallkill North cut-and-cover. ... Contract 47. October 4, 1912.

Wallkill North cut-and-cover. ... Contract 47. October 4, 1912.

Picryl description: Public domain image of railroad tracks, railway, train car, free to use, no copyright restrictions.

Kensico reservoir. View showing excavation for foundation of Kensico dam in progress. Note wooden flume for controlling water of Bronx river. Contract 9. July 30, 1912.

Kensico reservoir. View showing excavation for foundation of Kensico d...

Public domain photograph of construction site, free to use, no copyright restrictions image - Picryl description

Wallkill North cut-and-cover. Aqueduct built on rolled embarkment. .... Contract 47. November 9, 1911.

Wallkill North cut-and-cover. Aqueduct built on rolled embarkment. ......

Picryl description: Public domain image of railroad tracks, railway, train car, free to use, no copyright restrictions.

Bryn Mawr blow-off. ... Contract 79. September 25, 1914.

Bryn Mawr blow-off. ... Contract 79. September 25, 1914.

Public domain image of an arch structure, bridge, historic place ruins, classical architecture, free to use, no copyright restrictions - Picryl description

Ashokan Reservoir. Forms for concrete plug, 26 feet thick, in stream-control conduit in Olive Bridge dam. The 6-foot opening at bottom carries the flow of Esopus creek. Contract 3. August 25, 1913.

Ashokan Reservoir. Forms for concrete plug, 26 feet thick, in stream-c...

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Ashokan Reservoir. View of Olive Bridge dam just after removal of the stream-control pipes. Stream flowing through temporary conduit in dam. Contract 3. December 5, 1908.

Ashokan Reservoir. View of Olive Bridge dam just after removal of the...

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Highways. Ashokan reservoir. ... Contract 152. May 25, 1916.

Highways. Ashokan reservoir. ... Contract 152. May 25, 1916.

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Rondout pressure tunnel. ... Contract 12. April 20, 1911.

Rondout pressure tunnel. ... Contract 12. April 20, 1911.

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

Rondout pressure tunnel. Showing method of placing concrete in arch. ... Contract 12. April 21, 1911.

Rondout pressure tunnel. Showing method of placing concrete in arch. ...

Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.

Ashokan Reservoir. View of Woodstock dike under construction. Train on core-wall dumping material which is spread and then rolled. Contract 60. October 13, 1910.

Ashokan Reservoir. View of Woodstock dike under construction. Train on...

Picryl description: Public domain image of railroad tracks, railway, train car, free to use, no copyright restrictions.

Ashokan Reservoir. View showing construction of conduit built under the Middle dike to control the flow of the Beaver Kill. Contract 3. August 14. 1908.

Ashokan Reservoir. View showing construction of conduit built under t...

Picryl description: Public domain image of a construction site, industrial or commercial building, free to use, no copyright restrictions.

Camps. Ashokan reservoir. .. Contract 3. October 30, 1908.

Camps. Ashokan reservoir. .. Contract 3. October 30, 1908.

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

Kensico reservoir. General view of foundation and cut-off trench for Kensico dam and contractor's plant. Old dam at right of center and flume for controlling water of Bronx river. Contract 9. March 28, 1913.

Kensico reservoir. General view of foundation and cut-off trench for K...

Picryl description: Public domain image of a quarry, mine, excavation, or mining site, free to use, no copyright restrictions.

Hill View reservoir. Placing 6-inch concrete lining on reservoir bottom of East basin. ... Contract 30. June 25, 1914.

Hill View reservoir. Placing 6-inch concrete lining on reservoir botto...

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Highways. Ashokan reservoir. ... Contract 151. October 27, 1914.

Highways. Ashokan reservoir. ... Contract 151. October 27, 1914.

Picryl description: Public domain vintage artistic photograph, free to use, no copyright restrictions image.

Rondout pressure tunnel. View of foot of shaft showning 90-degree junction of shaft and tunnel. Contract 12. April 21, 1911.

Rondout pressure tunnel. View of foot of shaft showning 90-degree junc...

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Kensico reservoir. View showing expansion-joints of Kensico dam spaced abour 79 feet apart. Note cut-off trench in right foreground with drainage gallery above. Contract 9. September 9, 1914.

Kensico reservoir. View showing expansion-joints of Kensico dam spaced...

Public domain image of an industrial building, factory, structure, works, 19th-20th century industrial revolution, free to use, no copyright restrictions - Picryl description

Yonkers pressure tunnel. Contract 54. April 18, 1913.

Yonkers pressure tunnel. Contract 54. April 18, 1913.

Picryl description: Public domain image of a construction site, industrial or commercial building, free to use, no copyright restrictions.

Wallkill pressure tunnel. ... Contract 47. May 25, 1910.

Wallkill pressure tunnel. ... Contract 47. May 25, 1910.

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Kensico reservoir. View of down-stream face of dam showing method of placing concrete with travelling derricks. Contract 9. October 30, 1913.

Kensico reservoir. View of down-stream face of dam showing method of p...

Picryl description: Public domain image of a construction site, industrial or commercial building, free to use, no copyright restrictions.

Yonkers pressure tunnel. ... Contract 54. October 9, 1912.

Yonkers pressure tunnel. ... Contract 54. October 9, 1912.

Picryl description: Public domain image of a damaged, burned, or destroyed building, natural disaster, war destruction, ruins, 19th-century architecture, free to use, no copyright restrictions.

Breakneck cut-and-cover. Typical of country traversed in Putnam County. Contract 22. November 5, 1909.

Breakneck cut-and-cover. Typical of country traversed in Putnam County...

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Camps. Rondout pressure tunnel. ... Contract 12. July 20, 1909.

Camps. Rondout pressure tunnel. ... Contract 12. July 20, 1909.

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

Rondout pressure tunnel. Tunnel excavation showing operation on both bench and heading in progress. Contract 12. July 20, 1909.

Rondout pressure tunnel. Tunnel excavation showing operation on both ...

Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.

Bridges. Kensico reservoir. ... Contract 9. October 25, 1917.

Bridges. Kensico reservoir. ... Contract 9. October 25, 1917.

Picryl description: Public domain vintage artistic photograph, free to use, no copyright restrictions image.

Highways. Ashokan reservoir. ... Contract 151. June 9, 1914.

Highways. Ashokan reservoir. ... Contract 151. June 9, 1914.

Picryl description: Public domain vintage artistic photograph, free to use, no copyright restrictions image.

Kensico reservoir. Travelling stiff-leg derricks for handling masonry for the dam. Tracks supported by blocks forming facing of expansion joints. Contract 9. July 23, 1914.

Kensico reservoir. Travelling stiff-leg derricks for handling masonry ...

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William Hogarth - Marriage A-La-Mode (Plate I) [The Contract]

William Hogarth - Marriage A-La-Mode (Plate I) [The Contract]

Public domain reproduction of art print, 18th century, free to use, no copyright restrictions image - Picryl description.

Wallkill cut-and-cover. ... Contract 47. July 21, 1910.

Wallkill cut-and-cover. ... Contract 47. July 21, 1910.

Picryl description: Public domain image of a quarry, excavation or mining site, free to use, no copyright restrictions.

Wallkill North cut-and-cover. Beginning concrete arch over completed invert. ... Contract 47. July 21, 1910.

Wallkill North cut-and-cover. Beginning concrete arch over completed i...

Picryl description: Public domain vintage artistic photograph, free to use, no copyright restrictions image.

Wallkill North cut-and-cover. Completed portion of aqueduct in Freer cut. ... Contract 47. April 5, 1912.

Wallkill North cut-and-cover. Completed portion of aqueduct in Freer c...

Picryl description: Public domain image of a quarry, mine, excavation, or mining site, free to use, no copyright restrictions.

Highways. Ashokan reservoir. ... Contract 151. August 5, 1914.

Highways. Ashokan reservoir. ... Contract 151. August 5, 1914.

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Wallkill pressure tunnel. Concrete for walls of chamber over Drainage shaft in place. ... Contract 47. November 10, 1911.

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

Ashokan Reservoir. View of down-stream face of Olive Bridge dam. Complete portion of dam at left. Contract 3. September 7, 1911.

Ashokan Reservoir. View of down-stream face of Olive Bridge dam. Compl...

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Ashokan Reservoir. View of Olive Bridge dam from down-stream side of South wing, showing completed masonry section across Esopus creek. Contract 3. April 3, 1912.

Ashokan Reservoir. View of Olive Bridge dam from down-stream side of S...

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Kensico reservoir. General view of Kensico dam and reservoir with pool and fountain below dam. Lower Effluent chamber in background. Contract 9. October 25, 1917.

Kensico reservoir. General view of Kensico dam and reservoir with poo...

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Boat hole. Boat hole (steel cover) at north end of the St. Elmo siphon. Central New England railroad crossing the siphon. Contract 17. August 21, 1917.

Boat hole. Boat hole (steel cover) at north end of the St. Elmo siphon...

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

Rondout pressure tunnel. View looking up incline to platform from which concrete is shoveled into arch forms. Contract 12. October 10, 1910.

Rondout pressure tunnel. View looking up incline to platform from whic...

Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.

Kensico reservoir. Valves and piping and concrete forms for blow-off in the Lower gate-chamber beneath the Terrace of Kensico dam. Contract 9. March 30, 1914.

Kensico reservoir. Valves and piping and concrete forms for blow-off i...

Picryl description: Public domain image of a construction site, industrial or commercial building, free to use, no copyright restrictions.

Ashokan Reservoir. Uppper gate-chamber from East Inlet channel. Upper and Lower pressure aqueducts for drawing water from reservoir under Dividing Weir dike; 60-inch gate -valves in place. Contract 3. June 15, 1911.

Ashokan Reservoir. Uppper gate-chamber from East Inlet channel. Upper ...

Picryl description: Public domain image of a romantic landscape with ruins, historical building, classical architecture, free to use, no copyright restrictions.

Camps. Catskill aqueduct. .. Contract 17. January 20, 1910.

Camps. Catskill aqueduct. .. Contract 17. January 20, 1910.

Public domain photograph of office, auditorium, free to use, no copyright restrictions image - Picryl description

Highways. Ashokan reservoir. ... Contract 151. August 5, 1914.

Highways. Ashokan reservoir. ... Contract 151. August 5, 1914.

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Fences. Typical fence along City's right-of-way. ... Contract 101. September 8, 1913.

Fences. Typical fence along City's right-of-way. ... Contract 101. Sep...

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Ashokan Reservoir. View of Olive Bridge dam looking up-stream, just before removal of the stream-control pipes. Contract 3. December 2, 1908.

Ashokan Reservoir. View of Olive Bridge dam looking up-stream, just b...

Public domain photograph of train tracks, railroad works, construction workers, free to use, no copyright restrictions image - Picryl description

Orange cut-and-cover. ... Contract 17. April 29 , 1910.

Orange cut-and-cover. ... Contract 17. April 29 , 1910.

Picryl description: Public domain image of a locomotive, train tracks, rail transportation, railroad, railway, 19th-20th century, free to use, no copyright restrictions.

Organization. City tunnel. Celebration ceremonies attending the holing through of the last heading of the City tunnel. Contract 65. January 12, 1914.

Organization. City tunnel. Celebration ceremonies attending the holing...

Public domain photograph of the train tunnel, railroad, train track, free to use, no copyright restrictions image - Picryl description

William Hogarth - Marriage A-La-Mode (Plate I) [The Contract]

William Hogarth - Marriage A-La-Mode (Plate I) [The Contract]

Public domain reproduction of art print, 16th-17th century, free to use, no copyright restrictions image - Picryl description.

Garrison tunnel. View showing methods of timbering. Bench mucking in progress. Contract 2. June 27, 1911.

Garrison tunnel. View showing methods of timbering. Bench mucking in p...

Public domain photograph of the train tunnel, railroad, train track, free to use, no copyright restrictions image - Picryl description

Bridges. Ashokan reservoir. ... Contract 49. April 16, 1913.

Bridges. Ashokan reservoir. ... Contract 49. April 16, 1913.

Picryl description: Public domain image of an arch bridge, stone structure, architecture, free to use, no copyright restrictions.

Hudson pressure tunnel. General view looking north at site of tunnel crossing. Breakneck mountain on right, Storm King on the left. Contract 90. August 29, 1916.

Hudson pressure tunnel. General view looking north at site of tunnel ...

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Aerators. General view from Middle dike of Ashokan reservoir shoeing the Lower gate-chamber in foreground and aerator in full operation beyond. ... Contract 10. June 20, 1917.

Aerators. General view from Middle dike of Ashokan reservoir shoeing t...

Picryl description: Public domain image of a stadium, public building, sports arena, free to use, no copyright restrictions.

Wallkill pressure tunnel. ... Contract 47. November 13, 1911.

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

Croton Lake pressure tunnel. View of section of tunnel showing completed concrete lining. Contract 24. February 14, 1912.

Croton Lake pressure tunnel. View of section of tunnel showing comple...

Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.

Aerators. View showing Kensico aerator in operation. ... Contract 55. March 26, 1917.

Aerators. View showing Kensico aerator in operation. ... Contract 55...

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Bridges. Kensico reservoir. ... Contract 9. May 2, 1911.

Bridges. Kensico reservoir. ... Contract 9. May 2, 1911.

Picryl description: Public domain vintage artistic photograph, free to use, no copyright restrictions image.

Ashokan Reservoir. View showing excavation for pressure aqueducts to convey the water to the Lower gate -chamber. Contract 3. July 19, 1910.

Ashokan Reservoir. View showing excavation for pressure aqueducts to c...

Picryl description: Public domain image of a construction site, industrial or commercial building, free to use, no copyright restrictions.

Esopus cut-and-cover. Placing concrete arch with revolving cranes. Contract 11. June 21, 1910.

Esopus cut-and-cover. Placing concrete arch with revolving cranes. Con...

Picryl description: Public domain photograph of a pipe, pipeline, excavation, free to use, no copyright restrictions.

Catskill Aqueduct Headworks. Lower Special aqueduct showing connection to Lower gate-chamber at left and Waste channel at right. Overflow weir in center. Contract 10. September 25, 1913.

Catskill Aqueduct Headworks. Lower Special aqueduct showing connection...

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Bonticou tunnel. General view showing the South portal with stone-crushing plant in background. ... Contract 47. April 5, 1912.

Bonticou tunnel. General view showing the South portal with stone-crus...

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Organizations. Ashokan reservoir. Office building at Brown Station. Contract 3.

Organizations. Ashokan reservoir. Office building at Brown Station. Co...

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

Esopus cut-and-cover. ... Contract 11. June 21, 1910.

Esopus cut-and-cover. ... Contract 11. June 21, 1910.

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

Silver Lake reservoir. View of reservoir showing North and South basins. ... Contract 89. September 22, 1917.

Silver Lake reservoir. View of reservoir showing North and South basi...

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Organization. Hill View reservoir. View showing locker house on Jerome avenue near Hill Viiew reservoir. Contract 30. October 25, 1910.

Organization. Hill View reservoir. View showing locker house on Jerome...

Public domain photograph of a house, cottage, free to use, no copyright restrictions image - Picryl description

Breakneck pressure tunnel. ... Contract 80. August 29, 1916.

Breakneck pressure tunnel. ... Contract 80. August 29, 1916.

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

Yonkers pressure tunnel. One type of steel forms for lining tunnel. ... Contract 54. November 15, 191.

Yonkers pressure tunnel. One type of steel forms for lining tunnel. ....

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

Camps. Catskill aqueduct. .. Contract 17. January 20, 1910.

Camps. Catskill aqueduct. .. Contract 17. January 20, 1910.

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

Rondout pressure tunnel. Section of steel interlining in place to reinforce concrete lining at a mud seam. Contract 12. October 20, 1911.

Rondout pressure tunnel. Section of steel interlining in place to rei...

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

Kensico reservoir. View showing Waste weir and foot bridge over Waste channel. Contract 9. August 12, 1915.

Kensico reservoir. View showing Waste weir and foot bridge over Waste...

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

Catskill aqueduct. ... Contract 58. March 4, 1913.

Catskill aqueduct. ... Contract 58. March 4, 1913.

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Catskill Aqueduct Headworks. Placing concrete forms for connections between Lower Pressure aqueduct and 48-inch control valves. Intake castings from Upper Pressure aqueduct to 48-control valve at left. Contract 10. May 6, 1913.

Catskill Aqueduct Headworks. Placing concrete forms for connections be...

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Ashokan Reservoir. General view looking north-east , showing West and Middle dikes under construction. Note Ulster and Delaware Railroad tunnels through dikes at left and center of picture. Contract 3. November 18, 1913.

Ashokan Reservoir. General view looking north-east , showing West and ...

Public domain photograph of historic park, 19th-century vintage card, free to use, no copyright restrictions image - Picryl description

Public domain image of New york city cityscape, free to use, no copyright restrictions image - Picryl description

Public domain image of New york city cityscape, free to use, no copyri...

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

Bridges. Ashokan reservoir. ... Contract 49. April 28, 1914.

Bridges. Ashokan reservoir. ... Contract 49. April 28, 1914.

Picryl description: Public domain vintage artistic photograph, free to use, no copyright restrictions image.

Wallkill pressure tunnel. Side-wall and arch forms in place ready for concrete, with inclined track to platform on level with top of side-wall. Contract 47. April 11, 1911.

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.

Ashokan Reservoir. Placing paving on up-stream side of East dike. Contract 3. October 3, 1912.

Ashokan Reservoir. Placing paving on up-stream side of East dike. Cont...

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Camps. Catskill aqueduct. ... Contract 25. July 26, 1909.

Camps. Catskill aqueduct. ... Contract 25. July 26, 1909.

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

Camps. Catskill aqueduct. .. Contract 11. June 21, 1910.

Camps. Catskill aqueduct. .. Contract 11. June 21, 1910.

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

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