Garrett Snuff Mill, Route 82, Yorklyn, New Castle County, DE
Significance: The founding of the Garrett Snuff Mills represented the continuance of a 50-year tradition of Garrett enterprises on Red Clay Creek. Garrett's mills spanned the first two centuries of American in... More
Garrett Snuff Mill, Route 82, Yorklyn, New Castle County, DE
Significance: The founding of the Garrett Snuff Mills represented the continuance of a 50-year tradition of Garrett enterprises on Red Clay Creek. Garrett's mills spanned the first two centuries of American in... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 10, Guttenberg,...
Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With roots in the Progressive Era, the project was adopted by New Deal prop... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 10, Guttenberg,...
Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With roots in the Progressive Era, the project was adopted by New Deal prop... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 10, Guttenberg,...
Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With roots in the Progressive Era, the project was adopted by New Deal prop... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 10, Guttenberg,...
Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With roots in the Progressive Era, the project was adopted by New Deal prop... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 10, Guttenberg,...
Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With roots in the Progressive Era, the project was adopted by New Deal prop... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 10, Guttenberg,...
Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With roots in the Progressive Era, the project was adopted by New Deal prop... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 10, Guttenberg,...
Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With roots in the Progressive Era, the project was adopted by New Deal prop... More
![[Canal dam, Lexington, Virginia]. 19th century, Library of Congress collection](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzIwMTkvMDkvMjQvY2FuYWwtZGFtLWxleGluZ3Rvbi12YS1lZjI3MzgtMTAyNC5qcGc%3D/40/31/webp "[Canal dam, Lexington, Virginia]. 19th century, Library of Congress collection")
[Canal dam, Lexington, Virginia]. 19th century, Library of Congress co...
Original glass plate negative from Miley's Gallery, Lexington, VA. Public domain photograph - historical image of Virginia, United States, free to use, no copyright restrictions image - Picryl description
![[Dam, south fork, after Johnstown flood, Pennsylvania]](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE4ODkvMDEvMDEvZGFtLXNvdXRoLWZvcmstYWZ0ZXItam9obnN0b3duLWZsb29kLXBlbm5zeWx2YW5pYS02NDAuanBn/40/26/webp "[Dam, south fork, after Johnstown flood, Pennsylvania]")
[Dam, south fork, after Johnstown flood, Pennsylvania]
Clara Barton Collection. Public domain photograph - historical image of Pennsylvania, United States, free to use, no copyright restrictions image - Picryl description
Steam shovel removing a section of coffer dam, Livingstone Channel, De...
Title from jacket. "G 6686" on negative. Detroit Publishing Co. no. 039257. Gift; State Historical Society of Colorado; 1949.
![[Floodgates at dam facility] - Color separation negative, public domain](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MDUvMDEvMDEvZmxvb2RnYXRlcy1hdC1kYW0tZmFjaWxpdHktMTUtMTAyNC5qcGc%3D/40/39/webp "[Floodgates at dam facility] - Color separation negative, public domain")
[Floodgates at dam facility] - Color separation negative, public domai...
Public domain historical photo, free to use, no copyright restrictions image - Picryl description
![Old mill dam on the Wessahickon [sic], Philadelphia, Pennsylvania](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MDUvMDEvMDEvb2xkLW1pbGwtZGFtLW9uLXRoZS13ZXNzYWhpY2tvbi1zaWMtcGhpbGFkZWxwaGlhLXBhLTEwMjQuanBn/40/31/webp "Old mill dam on the Wessahickon [sic], Philadelphia, Pennsylvania")
Old mill dam on the Wessahickon [sic], Philadelphia, Pennsylvania
Picryl description: Public domain image of a rural landscape with water, building, 17th-18th century architecture, free to use, no copyright restrictions.
Paper mill, electric light plant and dam, Beloit, Wis.
Postcard shows dam, generating plant and a paper mill in Beloit, Wisconsin. H 116539 U.S. Copyright Office. Copyright by Hamilton Bros., Brodhead, Wisconsin.
![Along the Hoosac [sic] River, Adams, Massachusetts.](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MDgvMDEvMDEvYWxvbmctdGhlLWhvb3NhYy1zaWMtcml2ZXItYWRhbXMtbWFzcy0xMDI0LmpwZw%3D%3D/40/31/webp "Along the Hoosac [sic] River, Adams, Massachusetts.")
Along the Hoosac [sic] River, Adams, Massachusetts.
Picryl description: Public domain image of a park, trees, outdoors, free to use, no copyright restrictions.
![Plotina Sv. Kseniī. [Rossiĭskai︠a︡ imperii︠a︡]](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MDkvMDEvMDEvcGxvdGluYS1zdi1rc2VuaWktcm9zc2lza2FpYS1pbXBlcmlpYS0xMDI0LmpwZw%3D%3D/40/40/webp "Plotina Sv. Kseniī. [Rossiĭskai︠a︡ imperii︠a︡]")
Plotina Sv. Kseniī. [Rossiĭskai︠a︡ imperii︠a︡]
Public domain historical photo, free to use, no copyright restrictions image - Picryl description
Gatun spillway, Panama Canal - Public domain image. Dry plate negative...
Public domain photograph of Middle East, free to use, no copyright restrictions image - Picryl description
Katav-Ivanovskīĭ zavod. Zavodskīĭ prud i plotina
Public domain historical photo, free to use, no copyright restrictions image - Picryl description
![Portrait photo of Betonirovka fli︠u︡tbeta plotiny. [Beloomut]](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MTIvMDEvMDEvYmV0b25pcm92a2EtZmxpdXRiZXRhLXBsb3RpbnktYmVsb29tdXQtMTAyNC5qcGc%3D/40/39/webp "Portrait photo of Betonirovka fli︠u︡tbeta plotiny. [Beloomut]")
Portrait photo of Betonirovka fli︠u︡tbeta plotiny. [Beloomut]
Workers and supervisors posing for photograph amid preparations for pouring cement for sluice dam foundation across the Oka River near Beloomut.
Zh.d. damba v Sorocheĭ Gubi︠e︡ - Color separation negative, public dom...
Public domain historical photo, free to use, no copyright restrictions image - Picryl description
High water, Roosevelt Dam, Panoramic Photograph
J211071 U.S. Copyright Office Copyright deposit; James M. McCulloch; February 11, 1916; DLC/PP-1916:45058. Copyright claimant's address: Phoenix, Arizona.
Elephant Butte Dam, Rio Grande, New Mexico
Photograph shows view along the top of the Elephant Butte Dam, possibly in final stages of construction, with reservoir on the right and three electrical(?) towers in the background. Photograph from the U.S. R... More
Roosevelt Dam, Ariz. - A black and white photo of a waterfall
Photograph shows view from elevated vantage point of the Roosevelt Dam and spillways. J212036 U.S. Copyright Office. 1102. Copyright 1916 by Kunselman.
Elephant Butte Dam panoramic view
Photograph shows view from elevated position of the Elephant Butte Dam with spillway in the foreground and reservoir in the background. J223871 U.S. Copyright Office.
Kerckoff Dam on San Joaquin River, part of power project in the Sierra...
Stereograph showing view from elevated vantage point of the Kerckoff Dam and spillway. J262183 U.S. Copyright Office. Series: The California Missions and the State of California. Irrigation 10. No. (176). Copy... More
Appleton Locks & Dams, Lock Shelter at Lock 2, North of Lock 2, near U...
Significance: The lock shelter provides shelter for the lockkeeper while on active duty. Further, the lock shelter provides office space and first aid facilities for office personnel. As such, the lock shelte... More
Chesapeake & Ohio Canal, Dam 5, 106.8 miles above tidewater, Williamsp...
Survey number: HABS MD-789 Public domain photograph of water reservoir, lake, free to use, no copyright restrictions image - Picryl description
Boulder dam, between Arizona and Nevada. Workman using compressed air ...
Farm Security Administration and Office of War Information Collection. U.S. Bureau of Reclamation. No. BC2283.
![[Four men, three standing on top and one standing inside, riding on large casing section of pipe suspended by cable as it is moved into position by a crane, reservoir in the background during construction of the Grand Coulee Dam, Washington]](https://cache.getarchive.net/Prod/thumb/cdn18/L3Bob3RvLzIwMTkvMTEvMTUvZm91ci1tZW4tdGhyZWUtc3RhbmRpbmctb24tdG9wLWFuZC1vbmUtc3RhbmRpbmctaW5zaWRlLXJpZGluZy1vbi1sYXJnZS1jYXNpbmctOTk1ODg2LTEwMjQuanBn/40/48/webp "[Four men, three standing on top and one standing inside, riding on large casing section of pipe suspended by cable as it is moved into position by a crane, reservoir in the background during construction of the Grand Coulee Dam, Washington]")
[Four men, three standing on top and one standing inside, riding on la...
2541. Photograph from the U.S. Bureau of Reclamation. Public domain photograph - historical image of Washington State, United States, free to use, no copyright restrictions image - Picryl description
The countryside near the Tennessee Valley Authority dam site, Douglas ...
Picryl description: Public domain image of a rural countryside landscape, agriculture, farm animals, livestock, pasture, free to use, no copyright restrictions image.
Countryside near the TVA site of the Douglas dam, Tenn.
Public domain photograph - historical image of Washington State, United States, free to use, no copyright restrictions image - Picryl description
Section of one of the switchyards from which high tension lines carry ...
Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.
Transmission towers in the switchyard of TVA's Chickamauga Dam, near C...
12002-36. Transfer from U.S. Office of War Information, 1944. General information about the FSA/OWI Color Photographs is available at http://hdl.loc.gov/loc.pnp/pp.fsac Title from FSA or OWI agency caption. Add... More
Construction work at the TVA's Douglas Dam, Tenn.
Picryl description: Public domain image of a mine, mining, free to use, no copyright restrictions.
Appleton Locks & Dams, Storage Building at Lock 4, East of Lock 4 near...
Significance: The storage building functions as part of the daily operation of the Appleton Locks and Dams Complex. Survey number: HAER WI-84-N Building/structure dates: 1976 Initial Construction
Croton Hydroelectric Plant, Dam, Croton Dam Road at Muskegon River, Cr...
Significance: The earth embankment dam at the Croton Hydroelectric Plant is an innovative design feature of this complex designed by William G. Fargo, a Jackson, Michigan civil engineer who specialized in desig... More
Columbia Basin Project, Banks Lake Dry Falls Dam & Main Canal Headwork...
Significance: The development potential of the Grand Coulee, a gorge carved out by the Columbia River before that waterway shifted its course, was a deciding factor in the Bureau of Reclamation's choice for the... More
Appalachian Trail and Fontana Dam, North Carolina
Digital image produced by Carol M. Highsmith to represent her original film transparency; some details may differ between the film and the digital images. Title, date, and keywords provided by the photographer.... More
Aerial view of Hoover Dam near Boulder City, Nevada
Digital image produced by Carol M. Highsmith to represent her original film transparency; some details may differ between the film and the digital images. Title, date, and keywords provided by the photographer.... More
Aerial view of Hoover Dam, near Boulder City, Nevada
Digital image produced by Carol M. Highsmith to represent her original film transparency; some details may differ between the film and the digital images. Title, date, and keywords provided by the photographer.... More
Conchas Dam, a corps of engineers flood prevention project also used f...
Illustration shows the downstream face and spillway of the newly completed Conchas Dam in New Mexico. Illus. in: Water in New Mexico : a history of its management and use / Ira G. Clark. Albuquerque : Universi... More
After the success of the Bear Valley and Sweetwater dams, the structur...
Illustration showing Caption continues: The Upper Otay Dam south of San Diego featured a thin arch concrete design, with a height of 84 feet and a maximum thickness of only 14 feet; it was built under the dire... More
A Rocky Mountain bighorn sheep ewe keeps a close eye on her lamb in th...
Title, date and keywords based on information provided by the photographer. Cheesman was the first reservoir of Denver's mountain storage facilities that helped expand Denver Water's system. Built by immigrant ... More
Sergei Prokudin Gorskiy, Plotina Sv. Pavla v Devi︠a︡tinakh. Rossiĭskai...
Credit line: Prokudin-Gorskiĭ photograph collection, Library of Congress, Prints and Photographs Division. Corresponding photographic print is in album: Views along the Mariinskii Canal and river system, Russia... More
Sergei Prokudin Gorskiy, Floodgates at dam facility, color separation ...
Credit line: Prokudin-Gorskiĭ photograph collection, Library of Congress, Prints and Photographs Division. Digital color composite made for the Library by Blaise Agüera y Arcas, 2004. General information about ... More
Sergei Prokudin Gorskiy, Betonirovka fli︠u︡tbeta plotiny. Beloomut, co...
Workers and supervisors posing for photograph amid preparations for pouring cement for sluice dam foundation across the Oka River near Beloomut. Credit line: Prokudin-Gorskiĭ photograph collection, Library of C... More
Sergei Prokudin Gorskiy, Kovzhskai︠a︡ plotina. Rossiĭskai︠a︡ imperii︠a...
Credit line: Prokudin-Gorskiĭ photograph collection, Library of Congress, Prints and Photographs Division. Corresponding photographic print is in album: Views along the Mariinskii Canal and river system, Russia... More
Bloede Dam, Spanning Patapsco River, Avalon, Baltimore County, MD
Significance: In 1907, the Patapsco Electric and Manufacturing Company contracted Ambursen Hydraulic Construction Company to build the Bloede Dam using Nils F. Ambursen's patent. The proposed dam would generate... More
Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...
Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... More
Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...
Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... More
Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...
Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... More
Columbia Canal & Power Plant, Waterfront of Broad River, Columbia, Ric...
Significance: Designed to enable the navigation of the Broad and Congaree Rivers at their confluence in Columbia, the canal was completed in 1824 and enlarged in 1891; the 1891 portion of the canal is the signi... More
Illinois Waterway, Starved Rock Lock and Dam , 950 North 27th Road, Ut...
Survey number: HAER IL-164-D National Register of Historic Places NRIS Number: 04000166
Illinois Waterway, Starved Rock Lock and Dam , 950 North 27th Road, Ut...
Survey number: HAER IL-164-D National Register of Historic Places NRIS Number: 04000166
Illinois Waterway, Starved Rock Lock and Dam , 950 North 27th Road, Ut...
Survey number: HAER IL-164-D National Register of Historic Places NRIS Number: 04000166
Milltown Dam, Powerhouse, Clark Fork River, 6 miles upstream from Miss...
Survey number: HAER MT-43-A Building/structure dates: 1908 Initial Construction
Heber Light & Power Company, Hydroelectric Plant, U.S. Route 40/189, H...
Significance: Heber Light and Power Plant is representative of the large number of modest hydroelectric stations built during the first two decades of the twentieth century as a result of the growing demand for... More
Milltown Dam, Spillway, Clark Fork River, 6 miles upstream from Missou...
Survey number: HAER MT-43-B Building/structure dates: 1908 Initial Construction
Milltown Dam, Spillway, Clark Fork River, 6 miles upstream from Missou...
Survey number: HAER MT-43-B Building/structure dates: 1908 Initial Construction
Hurricane Irrigation Canal, State Route 15 Vicinity, Hurricane, Washin...
Significance: When an expanding population created a demand for more farmland, the residents of the narrow Virgin River valley turned to the Hurricane Bench, a broad expanse of fertile land requiring only water... More
Hurricane Irrigation Canal, State Route 15 Vicinity, Hurricane, Washin...
Significance: When an expanding population created a demand for more farmland, the residents of the narrow Virgin River valley turned to the Hurricane Bench, a broad expanse of fertile land requiring only water... More
Bluebird Dam, On Ouzel Creek 7 miles west of Allenspark, Allenspark, B...
Significance: Completed ca. 1923, it is locally significant to Boulder County as an intact example of an early 20th century, and relatively uncommon, arch concrete dam. The dam documents an important engineerin... More
Silas C. Read Sawmill, Outlet of Maxwell Lake near North Range Road, F...
Significance: The Silas C. Read Sawmill (previously referred to as the Maxwell Mill) is one of the oldest sawmills in Georgia. The sawmill may have been established by Silas C. and Lucy J. Read during the Civil... More
Silas C. Read Sawmill, Outlet of Maxwell Lake near North Range Road, F...
Significance: The Silas C. Read Sawmill (previously referred to as the Maxwell Mill) is one of the oldest sawmills in Georgia. The sawmill may have been established by Silas C. and Lucy J. Read during the Civil... More
Hoover Dam, Spanning Colorado River at Route 93, Boulder City, Clark C...
Significance: It is a National Historic Landmark, an American Civil Engineering Landmark, and the focus of an historic district listed on the National Register of Historic Places. The dam was constructed betwee... More
Hoover Dam, Spanning Colorado River at Route 93, Boulder City, Clark C...
Significance: It is a National Historic Landmark, an American Civil Engineering Landmark, and the focus of an historic district listed on the National Register of Historic Places. The dam was constructed betwee... More
Hoover Dam, Spanning Colorado River at Route 93, Boulder City, Clark C...
Significance: It is a National Historic Landmark, an American Civil Engineering Landmark, and the focus of an historic district listed on the National Register of Historic Places. The dam was constructed betwee... More
Hoover Dam, Spanning Colorado River at Route 93, Boulder City, Clark C...
Significance: It is a National Historic Landmark, an American Civil Engineering Landmark, and the focus of an historic district listed on the National Register of Historic Places. The dam was constructed betwee... More
Hoover Dam, Spanning Colorado River at Route 93, Boulder City, Clark C...
Significance: It is a National Historic Landmark, an American Civil Engineering Landmark, and the focus of an historic district listed on the National Register of Historic Places. The dam was constructed betwee... More
Norwich Water Power Company, Dam, West bank of Shetucket River opposit...
Significance: The dam is significant as a major component of an 1882 rebuilding of the Norwich Water Power Company's facilities. The project reduced the length of the canal and improved the flow of water, ther... More
Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR
Significance: Owyhee Dam is a 417-foot-high, concrete thick-arch dam (or arch/gravity dam). At its completion in 1932, Owyhee was the tallest dam in the world, a short-lived distinction because it was superced... More
Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR
Significance: Owyhee Dam is a 417-foot-high, concrete thick-arch dam (or arch/gravity dam). At its completion in 1932, Owyhee was the tallest dam in the world, a short-lived distinction because it was superced... More
Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR
Significance: Owyhee Dam is a 417-foot-high, concrete thick-arch dam (or arch/gravity dam). At its completion in 1932, Owyhee was the tallest dam in the world, a short-lived distinction because it was superced... More
Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR
Significance: Owyhee Dam is a 417-foot-high, concrete thick-arch dam (or arch/gravity dam). At its completion in 1932, Owyhee was the tallest dam in the world, a short-lived distinction because it was superced... More
Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR
Significance: Owyhee Dam is a 417-foot-high, concrete thick-arch dam (or arch/gravity dam). At its completion in 1932, Owyhee was the tallest dam in the world, a short-lived distinction because it was superced... More
Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR
Significance: Owyhee Dam is a 417-foot-high, concrete thick-arch dam (or arch/gravity dam). At its completion in 1932, Owyhee was the tallest dam in the world, a short-lived distinction because it was superced... More
Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR
Significance: Owyhee Dam is a 417-foot-high, concrete thick-arch dam (or arch/gravity dam). At its completion in 1932, Owyhee was the tallest dam in the world, a short-lived distinction because it was superced... More
Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR
Significance: Owyhee Dam is a 417-foot-high, concrete thick-arch dam (or arch/gravity dam). At its completion in 1932, Owyhee was the tallest dam in the world, a short-lived distinction because it was superced... More
Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR
Significance: Owyhee Dam is a 417-foot-high, concrete thick-arch dam (or arch/gravity dam). At its completion in 1932, Owyhee was the tallest dam in the world, a short-lived distinction because it was superced... More
Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR
Significance: Owyhee Dam is a 417-foot-high, concrete thick-arch dam (or arch/gravity dam). At its completion in 1932, Owyhee was the tallest dam in the world, a short-lived distinction because it was superced... More
Owyhee Dam, Across Owyhee River, Nyssa, Malheur County, OR
Significance: Owyhee Dam is a 417-foot-high, concrete thick-arch dam (or arch/gravity dam). At its completion in 1932, Owyhee was the tallest dam in the world, a short-lived distinction because it was superced... More
High Mountain Dams in Bonneville Unit, Big Elk Lake Dam, Wasatch Natio...
Public domain photograph - historical image of Utah, United States, free to use, no copyright restrictions image - Picryl description
Skagit Power Development, Gorge High Dam, On Skagit River, 2.9 miles u...
Unprocessed Field note material exists for this structure: FN-5 Survey number: HAER WA-24-C Building/structure dates: 1961 Initial Construction
Trout Creek Dam, River Mile 1.8 on Trout Creek, Carson, Skamania Count...
Significance: The dam and fish ladder were constructed by the CCC, Company 944 in 1935-36. The structure, a concrete arch dam, is believed to be one of the largest power generation plants constructed solely by ... More
Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...
Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More
Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...
Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More
Monongahela River Lock & Dam No. 7, River Mile No. 85, Greensboro, Gre...
Part of the Monongahela River Recording Project, which included HAER PA-300, Port Perry Bridge; HAER PA-385, Monongahela Navation Company Lock and Dam No. 7; and HAER PA-304, Lower Monongahela River Public Impr... More
Little Kaukauna Lock & Dam, At 23-mile marker on Lower Fox River, Rock...
Significance: The Little Kaukauna Lock and Dam Complex allows passage for watercraft around the rapids present in the Lower Fox River at Little Kaukauna. Survey number: HAER WI-89 Building/structure dates: 18... More
High Mountain Dams in Bonneville Unit, Marjorie Lake Dam, Wasatch Nati...
Significance: Typical earth-fill structures, the dams on Marjorie and Duck lakes were constructed using similar specifications, including the stipulation for "carefully hand-laid rock faces." They are represen... More
Keechelus Dam, Yakima River, 10 miles northwest of Easton, Easton, Kit...
Public domain photograph - historical image of Washington State, United States, free to use, no copyright restrictions image - Picryl description
Keechelus Dam, Yakima River, 10 miles northwest of Easton, Easton, Kit...
Public domain photograph - historical image of Washington State, United States, free to use, no copyright restrictions image - Picryl description
Keechelus Dam, Yakima River, 10 miles northwest of Easton, Easton, Kit...
Public domain photograph of river bank, water, free to use, no copyright restrictions image - Picryl description
Washington Water Power Company Post Falls Power Plant, North Channel D...
Significance: It is significant as the main controlling works for the Lake Coeur D'Alene, the natural impoundment for the entire Spokane River hydroelectric system. The North Channel dam is an L-shaped, concret... More
Wickiup Dam, Deschutes River, La Pine, Deschutes County, OR
Significance: Wickiup Dam and its related features are significant at the state level for their association with the development of the irrigated agricultural economy that strongly influenced the historic devel... More
Wickiup Dam, Deschutes River, La Pine, Deschutes County, OR
Significance: Wickiup Dam and its related features are significant at the state level for their association with the development of the irrigated agricultural economy that strongly influenced the historic devel... More
Shoshone Falls Hydroelectric Project, Reservoir and Dam Complex, North...
Significance: The reservoir and dam complex mark the capture point, the beginning, of the the entire Shoshone Falls hydroelectric system. The four dams of the dam complex impound water in the reservoir, allowin... More
Shoshone Falls Hydroelectric Project, Reservoir and Dam Complex, North...
Significance: The reservoir and dam complex mark the capture point, the beginning, of the the entire Shoshone Falls hydroelectric system. The four dams of the dam complex impound water in the reservoir, allowin... More
Shoshone Falls Hydroelectric Project, Reservoir and Dam Complex, North...
Significance: The reservoir and dam complex mark the capture point, the beginning, of the the entire Shoshone Falls hydroelectric system. The four dams of the dam complex impound water in the reservoir, allowin... More
![[Floodgates at dam facility] - Color separation negative, public domain](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MDUvMDEvMDEvZmxvb2RnYXRlcy1hdC1kYW0tZmFjaWxpdHktMS0xMDI0LmpwZw%3D%3D/40/35/webp "[Floodgates at dam facility] - Color separation negative, public domain")
[Floodgates at dam facility] - Color separation negative, public domai...
Public domain photograph of Russian Empire, color separation negatives, by Prokudin Gorsky, free to use, no copyright restrictions image - Picryl description