4,607 Hydroelectric power plants Images: LOC's Public Domain Archive Public Domain Search

John P. King Manufacturing Company, 1701 Goodrich Street, Augusta Cana...

Significance: The John P. King Mfg. Co. was built as part of Augusta's campaign to become the "Lowell of the South." The mill has always used the water power of the Augusta Canal and now generates hydroelectri... More

Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 5, Minn...

Significance: The Upper Mississippi River Lock and Dam Project represents one of the largest and most ambitious of such undertakings. With root in the Progressive Era, the project was adopted by New Deal propo... More

Hume Lake Dam, Sequioa National Forest, Hume, Fresno County, CA

Significance: Hume Lake Dam was the world's first reinforced a concrete multiple arch dam. Built to impound reservoir for the Hume-Bennett Lumber Company, today it is the only major surviving structure represe... More

Bishop Creek Hydroelectric System, Plant 6, Cashbaugh-Kilpatrick House...

Significance: Although greatly modified, the 19th Century Cashbaugh-era structures combined into Building 102 are reputed to be the oldest surviving houses in the Owens Valley. The Cashbaugh/Kilpatrick house's... More

Bishop Creek Hydroelectric System, Plant 6, Cashbaugh-Kilpatrick House...

Significance: Although greatly modified, the 19th Century Cashbaugh-era structures combined into Building 102 are reputed to be the oldest surviving houses in the Owens Valley. The Cashbaugh/Kilpatrick house's... More

Washington Water Power Company Monroe Street Plant, Units 4 & 5, South...

Significance: Installed in Washington Water Power Company's (WWPC) Monroe Street Plant in 1903, Generating Units 4 and 5 are believed to be the oldest turbine-generator units still operating in the State of Was... More

Santa Ana River Hydroelectric System, SAR-2 Powerhouse, Redlands, San ...

Survey number: HAER CA-130-Q Building/structure dates: 1898 Initial Construction Building/structure dates: 1905 Subsequent Work Building/structure dates: 1904 Subsequent Work

Santa Ana River Hydroelectric System, SAR-2 Powerhouse, Redlands, San ...

Survey number: HAER CA-130-Q Building/structure dates: 1898 Initial Construction Building/structure dates: 1905 Subsequent Work Building/structure dates: 1904 Subsequent Work

Santa Ana River Hydroelectric System, SAR-2 Powerhouse, Redlands, San ...

Survey number: HAER CA-130-Q Building/structure dates: 1898 Initial Construction Building/structure dates: 1905 Subsequent Work Building/structure dates: 1904 Subsequent Work

Santa Ana River Hydroelectric System, SAR-2 Powerhouse, Redlands, San ...

Survey number: HAER CA-130-Q Building/structure dates: 1898 Initial Construction Building/structure dates: 1905 Subsequent Work Building/structure dates: 1904 Subsequent Work

Santa Ana River Hydroelectric System, SAR-2 Powerhouse, Redlands, San ...

Survey number: HAER CA-130-Q Building/structure dates: 1898 Initial Construction Building/structure dates: 1905 Subsequent Work Building/structure dates: 1904 Subsequent Work

Boise Project, Boise River Diversion Dam, Across Boise River, Boise, A...

Significance: The Boise Diversion Dam and Powerplant are important components in the Boise Project, a Bureau of Reclamation effort to irrigate the Boise and Payette River valleys in Idaho. The diversion dam, co... More

Boise Project, Boise River Diversion Dam, Across Boise River, Boise, A...

Significance: The Boise Diversion Dam and Powerplant are important components in the Boise Project, a Bureau of Reclamation effort to irrigate the Boise and Payette River valleys in Idaho. The diversion dam, co... More

Bishop Creek Hydroelectric System, Plant 4, Worker Cottage, Bishop Cre...

Significance: Building 16, Plant 4 (formerly Building No. 7 Plant 4), a small Craftsman Style cottage, is the oldest permanently built residence at Plant 4. Its significance lies in its contribution to an unde... More

Bishop Creek Hydroelectric System, Plant 4, Worker Cottage, Bishop Cre...

Significance: Building 16, Plant 4 (formerly Building No. 7 Plant 4), a small Craftsman Style cottage, is the oldest permanently built residence at Plant 4. Its significance lies in its contribution to an unde... More

Bishop Creek Hydroelectric System, Plant 4, Worker Cottage, Bishop Cre...

Significance: Building 16, Plant 4 (formerly Building No. 7 Plant 4), a small Craftsman Style cottage, is the oldest permanently built residence at Plant 4. Its significance lies in its contribution to an unde... More

Bishop Creek Hydroelectric System, Plant 4, Worker Cottage, Bishop Cre...

Significance: Building 16, Plant 4 (formerly Building No. 7 Plant 4), a small Craftsman Style cottage, is the oldest permanently built residence at Plant 4. Its significance lies in its contribution to an unde... More

Skagit Power Development, Ross Powerhouse, On Skagit River, 10.7 miles...

Survey number: HAER WA-24-G Building/structure dates: HAER WA-24-G

Skagit Power Development, Ross Powerhouse, On Skagit River, 10.7 miles...

Survey number: HAER WA-24-G Building/structure dates: HAER WA-24-G

Skagit Power Development, Skagit River & Newhalem Creek Hydroelectric...

Significance: Developed over a 50 year time span by Seattle City Light, the Skagit River Hydroelectric Project consists of three large dams and power plants: Gorge, Diablo, and Ross. Associated with it is the ... More

Skagit Power Development, Skagit River & Newhalem Creek Hydroelectric...

Significance: Developed over a 50 year time span by Seattle City Light, the Skagit River Hydroelectric Project consists of three large dams and power plants: Gorge, Diablo, and Ross. Associated with it is the ... More

Skagit Power Development, Skagit River & Newhalem Creek Hydroelectric...

Significance: Developed over a 50 year time span by Seattle City Light, the Skagit River Hydroelectric Project consists of three large dams and power plants: Gorge, Diablo, and Ross. Associated with it is the ... More

Little Rock Creek Dam, Little Rock Creek, Littlerock, Los Angeles Coun...

Significance: When built the Littlerock Dam was the tallest reinforced concrete multiple arch dam in the world. For over fifty years it has provided water for the South Antelope Valley and contributed to the v... More

Rush Creek Hydroelectric System, Clubhouse Cottage, Rush Creek, June L...

Significance: Building 108 is one of the earliest Rush Creek worker cottages. Designed by the Riverside, California architect, W.C. Tanner, it combines Craftsman Bungalow and English Cottage styles. The Rush ... More

Rush Creek Hydroelectric System, Clubhouse Cottage, Rush Creek, June L...

Significance: Building 108 is one of the earliest Rush Creek worker cottages. Designed by the Riverside, California architect, W.C. Tanner, it combines Craftsman Bungalow and English Cottage styles. The Rush ... More

Elwha River Hydroelectric System, Glines Hydroelectric Dam & Plant, Po...

Unprocessed Field note material exists for this structure: N466 Survey number: HAER WA-130-B

Elwha River Hydroelectric System, Glines Hydroelectric Dam & Plant, Po...

Unprocessed Field note material exists for this structure: N466 Survey number: HAER WA-130-B

Mississippi River 9-Foot Channel Project, Lock & Dam No. 18, Upper Mis...

Picryl description: Public domain image of a bridge, water, historic structure, free to use, no copyright restrictions.

Upper Mississippi River Nine-Foot Channel Project, Lock & Dam No. 25, ...

Significance: The Upper Mississippi River Nine-Foot Channel Project represents one of the largest and most ambitious river improvement projects ever constructed in the United States. The project's origins date... 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

Bishop Creek Hydroelectric System, Plant 5, Bishop Creek, Bishop, Inyo...

Survey number: HAER CA-145-5 Public domain photograph of electric power generation, power lines, free to use, no copyright restrictions image - Picryl description

[Floodgates at dam facility] - Color separation negative, public domai...

Public domain historical photo, free to use, no copyright restrictions image - Picryl description

Reclamation built Lahontan Dam on the Newlands Project between 1911 an...

Illus. in: The Bureau of Reclamation : Origins and Growth to 1945, v. 1 / William D. Rowley. Denver, Colorado : U.S. Department of the Interior Bureau of Reclamation, 2006, p. 232 (4.29).

Wilson Dam, Aug. 15, 1927, Panoramic Photograph

J232104 U.S. Copyright Office Copyright deposit; George Lee Bracey; August 31, 1927. No. 21.

Construction workers using tools to settle freshly-poured concrete, Sh...

Title and other information from caption card. Transfer; United States. Office of War Information. Overseas Picture Division. Washington Division; 1944. More information about the FSA/OWI Collection is availabl... More

Construction workers on front porch of commissary, Shasta Dam. Shasta ...

Title and other information from caption card. Transfer; United States. Office of War Information. Overseas Picture Division. Washington Division; 1944. More information about the FSA/OWI Collection is availabl... More

Tennessee Valley Authority. The stator, rotor and exciter of a new gen...

Picryl description: Public domain image of a factory, plant, manufacture, assembly line, industrial facility, early 20th-century industrial architecture, free to use, no copyright restrictions.

Fort Loudon [i.e., Loudoun] Dam, Tennessee. Tennessee Valley Authority...

Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.

Fort Loudon [i.e., Loudoun] Dam, Tennessee. Tennessee Valley Authority...

Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.

Production. Steam power plant equipment. An electric arc-welder runs a...

Picryl description: Public domain image of an industrial equipment, workshop, assembly line, factory, power engine, 19th-20th century, free to use, no copyright restrictions.

Fort Loudon i.e., Loudoun Dam, Tennessee. Tennessee Valley Authority (...

Actual size of negative is C (approximately 4 x 5 inches). Title and other information from caption card. Transfer; United States. Office of War Information. Overseas Picture Division. Washington Division; 1944... More

Tennessee Valley Authority. Looking down the partly-finished generator...

Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.

Shoshone Falls Hydroelectric Project, Garage & Celler, North Bank of S...

Significance: It was the first building constructed in 1927 by the Idaho Power Company during its 1926-1927 expansion of the Shoshone Falls Hydroelectric Project. This stone building originally served as a gara... 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

Deer Creek Dam, Spanning the Provo River at the intersection of U.S. H...

Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.

Two of four 338-foot-high intake towers, the nearest of which showing ...

Called Boulder Dam from the date of its dedication in 1935, the concrete-arch dam was renamed after former U.S. president Herbert Hoover in 1947. Now a popular tourist attraction, the dam's generators provide p... More

Aerial view of a portion the water and surroundings of Lake Mead, crea...

The dam harnessed the Colorado River to create the widespread reservoir in the early 1930s. Lake Mead became the locus of a widespread national recreation area, popular with boaters and fishers. Title, date and... 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

John Hollis Bankhead Lock & Dam, On Warrior River below Port Birmingha...

Significance: The original 1915 dame (tone only one of the original 17) remains, though not easily accessible to the general public. The current dam is 1,400 feet wide, 77 feet high with a lift of 69 feet. Th... More

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

Hardy Hydroelectric Plant, Intake Tower, 6928 East Thirty-sixth Street...

Significance: The tower is part of the Hardy Hydroelectric Plant, built in the early 1930s as a link in Consumers Power Company's system of electric power generation. In designing and building Hardy, the compan... More

Croton Hydroelectric Plant, Croton Dam Road at Muskegon River, Croton,...

Significance: The Croton Hydroelectric Plant was one of the earliest large-scale hydroelectric generating plants in Michigan and was the site of major innovations in the transmission of high voltage electricity... More

Dam No. 4 Hydroelectric Plant, Potomac River, Martinsburg, Berkeley Co...

Significance: Each plant epitomized the predominant low head hydroelectric technology in use at the time of its construction, Dam 4 uses tandem, multiple-runner, horizontal shaft turbines connected by rope driv... More

Dam No. 4 Hydroelectric Plant, Potomac River, Martinsburg, Berkeley Co...

Significance: Each plant epitomized the predominant low head hydroelectric technology in use at the time of its construction, Dam 4 uses tandem, multiple-runner, horizontal shaft turbines connected by rope driv... More

Wilson Dam & Hydroelectric Plant, Spanning Tennessee River at Wilson D...

Significance: In 1918, by the directive of the U.S. War Department, the Army Corps of Engineers began construction on Wilson Dam, a large hydroelectric project that was to supply power to U.S. Nitrate Plant No.... More

Wilson Dam & Hydroelectric Plant, Spanning Tennessee River at Wilson D...

Significance: In 1918, by the directive of the U.S. War Department, the Army Corps of Engineers began construction on Wilson Dam, a large hydroelectric project that was to supply power to U.S. Nitrate Plant No.... More

Wilson Dam & Hydroelectric Plant, Spanning Tennessee River at Wilson D...

Significance: In 1918, by the directive of the U.S. War Department, the Army Corps of Engineers began construction on Wilson Dam, a large hydroelectric project that was to supply power to U.S. Nitrate Plant No.... More

Wilson Dam & Hydroelectric Plant, Spanning Tennessee River at Wilson D...

Significance: In 1918, by the directive of the U.S. War Department, the Army Corps of Engineers began construction on Wilson Dam, a large hydroelectric project that was to supply power to U.S. Nitrate Plant No.... More

Wilson Dam & Hydroelectric Plant, Spanning Tennessee River at Wilson D...

Significance: In 1918, by the directive of the U.S. War Department, the Army Corps of Engineers began construction on Wilson Dam, a large hydroelectric project that was to supply power to U.S. Nitrate Plant No.... 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

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

Cove Hydroelectric Development, Forebay & Diversion Dam, Cove Power Pl...

Significance: The forebay and diversion dam mark the capture point, the beginning, of the entire Cove system. The dam impounds water in the forebay, forcing it through the screen house and ultimately into the l... More

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

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

Cabot Station Electric Generating Plant, Gantry Crane, Montague City R...

Significance: The gantry crane is an integral part of Cabot Station, an early and substantial example of American hydroelectric engineering. When built, the plant as the largest hydroelectric facility in New E... More

Snoqualmie Falls Hydroelectric Project, .5 mile north of Snoqualmie, S...

Significance: The Snoqualmie Falls Hydroelectric Project was completed in 1898 and includes a cavity generating station, constructed some 250 feet below the surface of the river and about 300 feet from the edge... More

Snoqualmie Falls Hydroelectric Project, .5 mile north of Snoqualmie, S...

Significance: The Snoqualmie Falls Hydroelectric Project was completed in 1898 and includes a cavity generating station, constructed some 250 feet below the surface of the river and about 300 feet from the edge... More

Snoqualmie Falls Hydroelectric Project, .5 mile north of Snoqualmie, S...

Significance: The Snoqualmie Falls Hydroelectric Project was completed in 1898 and includes a cavity generating station, constructed some 250 feet below the surface of the river and about 300 feet from the edge... More

Puget Sound Power & Light Company, White River Hydroelectric Project, ...

Picryl description: Public domain image of a hydroelectric dam, industrial facility, power generation, water cascade, free to use, no copyright restrictions.

Puget Sound Power & Light Company, White River Hydroelectric Project, ...

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

Puget Sound Power & Light Company, White River Hydroelectric Project, ...

Picryl description: Public domain image of a hydroelectric dam, industrial facility, power generation, water cascade, free to use, no copyright restrictions.

Puget Sound Power & Light Company, White River Hydroelectric Project, ...

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

Puget Sound Power & Light Company, White River Hydroelectric Project, ...

Picryl description: Public domain image of a hydroelectric dam, industrial facility, power generation, water cascade, free to use, no copyright restrictions.

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

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

Ames Hydroelectric Plant, Ames, San Miguel County, CO

Significance: In 1890-91 L.L. Nunn built the world's first single-phase AC power transmission system at Ames in order to power the nearby Gold King Mine's stamp mill. The plant operated under a head of 320 feet... More

Bishop Creek Hydroelectric System, Plant 2, Bishop Creek, Bishop, Inyo...

Survey number: HAER CA-145-2 Public domain photograph of electric power generation, power lines, free to use, no copyright restrictions image - Picryl description

Cove Hydroelectric Development, Screen House & Intake, Cove Power Plan...

Significance: The screen house represents an original component of the Cove Hydroelectric Development and the intake point for water flowing into the canal and flume system. The screens played an important role... More

Hoover Dam, Arizona-Nevada Switchyard, U.S. Highway 93, Boulder City, ...

Significance: It is one of six switchyards built between 1935 and 1952 to provide terminals for major transmission lines carrying electricity to markets in California, Nevada, and Arizona. All of these faciliti... More

American Falls Water, Power & Light Company, Island Power Plant, Snake...

Significance: This site represents technology associated with the first era of long distance electric power transmission in the state. It is also a representative example of an early low-head hydroelectric pow... More

American Falls Water, Power & Light Company, Island Power Plant, Snake...

Significance: This site represents technology associated with the first era of long distance electric power transmission in the state. It is also a representative example of an early low-head hydroelectric pow... More

Hoover Dam, Los Angeles Relay Control Building, U.S. Highway 93, Bould...

Significance: It was a critical element of the Hoover Dam electrical generation and transmission system. Although it was associated by name with the Los Angeles Bureau of Power and Light 387.5/275 switchyard, t... More

Tallassee Shoals Hydroelectric Facility, Middle Oconee River, Athens, ...

Picryl description: Public domain image of a hydroelectric dam, industrial facility, power generation, water cascade, free to use, no copyright restrictions.

Holter Hydroelectric Facility, House No. 1, End of Holter Dam Road, Wo...

Significance: The Holter Hydroelectric Facility Historic District is significant as one of the most intact hydroelectric generating plants and operators' camps on the Missouri-Madison Project. House No. 1 contr... More

Lee Vining Creek Hydroelectric System, Triplex Cottage, Lee Vining Cre...

Significance: The triplex cottage at Poole Powerhouse (Lee Vining No. 1) was designed by G. Stanley Wilson who is recognized as one of California's master architects during the 1920 and 1930s. Wilson was a lead... More

Lee Vining Creek Hydroelectric System, Triplex Cottage, Lee Vining Cre...

Significance: The triplex cottage at Poole Powerhouse (Lee Vining No. 1) was designed by G. Stanley Wilson who is recognized as one of California's master architects during the 1920 and 1930s. Wilson was a lead... More

Washington Water Power Company Post Falls Power Plant, Middle Channel ...

Significance: It is significant as the first power production and transmission facility constructed on the Spokane River outside Spokane. The historic property consists of the connected, but irregular shaped "o... More