![Arrowrock Dam, [Idaho] - Glass negative photogrpah. Public domain.](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MTAvMDEvMDEvYXJyb3dyb2NrLWRhbS1pZGFoby0xMDI0LmpwZw%3D%3D/40/52/webp "Arrowrock Dam, [Idaho] - Glass negative photogrpah. Public domain.")
Arrowrock Dam, [Idaho] - Glass negative photogrpah. Public domain.
Public domain historical photo, free to use, no copyright restrictions image - Picryl description
![Roosevelt Dam, [Arizona] - Glass negative photogrpah. Public domain.](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MTAvMDEvMDEvcm9vc2V2ZWx0LWRhbS1hcml6b25hLTEtMTAyNC5qcGc%3D/40/31/webp "Roosevelt Dam, [Arizona] - Glass negative photogrpah. Public domain.")
Roosevelt Dam, [Arizona] - Glass negative photogrpah. Public domain.
Public domain historical photo, free to use, no copyright restrictions image - Picryl description
![[Mormon Flat Dam with double-gated spillway on right side on the Salt River, Maricopa County, Arizona]](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzIwMTkvMDkvMjUvbW9ybW9uLWZsYXQtZGFtLXdpdGgtZG91YmxlLWdhdGVkLXNwaWxsd2F5LW9uLXJpZ2h0LXNpZGUtb24tdGhlLXNhbHQtcml2ZXItMWIwNzg0LTEwMjQuanBn/40/33/webp "[Mormon Flat Dam with double-gated spillway on right side on the Salt River, Maricopa County, Arizona]")
[Mormon Flat Dam with double-gated spillway on right side on the Salt ...
3158. Public domain photograph of electric power generation, power lines, free to use, no copyright restrictions image - Picryl description Public domain photograph of electric power plant, generation, free ... More
Shasta dam under construction, California
11671-31. 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
Roosevelt Dam showing small amount of impounded water because of exten...
Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.
Boulder Dam. Nevada - safety film negatives, Library of Congress
Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.
Norris Dam, Tennessee - safety film negatives, Library of Congress
Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.
Friant Dam, Central Valley Reclamation Project, Calif. Panoramic view ...
Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.
Cherokee Dam, Tennessee (Tennessee Valley Authority (TVA)). Spillway
Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.
Watts Bar Dam, Tennessee. Tennessee Valley Authority. Construction
Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.
View of the Cheesman Dam from its vast reservoir in Jefferson County, ...
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
Water cascades down venerable Cheesman Dam in Jefferson County, Colora...
Title, date and keywords based on information provided by the photographer. The reservoir the dam created was the first in Denver's mountain storage facilities that helped expand Denver Water's system. Built by... More
Guntersville Dam on the Tennessee River, Guntersville, Alabama
Guntersville was founded by German immigrant John Gunter (the great-grandfather of American humorist Will Rogers). It is located at the southernmost point of the Tennessee River on Lake Guntersville, formed by ... 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 Basin Project, Grand Coulee Dam Powerplant Complex, Grand Cou...
Picryl description: Public domain image of a dam, reservoir, quarry, or excavation site, free to use, no copyright restrictions.
Kaukauna Lock & Dam, Fox River at Canal Street, Kaukauna, Outagamie Co...
Significance: The Kaukauna Locks and Dam Complex provides passage around drop in elevation of 50 feet in the Lower Fox River at Kaukauna. The complex served as an integral part of the Lower Fox River Waterway ... More
Gallipolis Locks & Dam, Dam, Across Ohio River, Gallipolis, Mason Coun...
Significance: The dam consists of eight bays with moveable gates. The roller gates are the most important engineering feature of the site and are the largest in the country. Survey number: HAER WV-58-A
Trenton Falls Hydroelectric Station, Dam & Headworks, On west bank of ...
Significance: Strongly influenced by the earliest Niagara hydroelectric project, the 1901 Trenton Falls Station was installed in a spectacular gorge and was probably the highest-head contemporary plant in the e... More
Horse Mesa Dam, Salt River, 65 miles East of Phoenix, Phoenix, Maricop...
Significance: It was the second dam constructed under the Salt River Project's hydroelectric expansion program in the 1920s. Survey number: HAER AZ-15 Building/structure dates: 1927 Initial Construction Nati... More
Prado Dam, Spillway, Santa Ana River near junction of State Highways 7...
Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.
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
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
Mountain Dell Dam, Parley's Canyon, Northwest side of I-80, West of St...
Significance: Mountain Dell Dam is an early application of multiple-arch reinforced-concrete construction to dam engineering. The design developed by John S. Eastwood consisted of a series of arches set at an a... More
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
![[Floodgates at dam facility] - Color separation negative, public domain](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MDUvMDEvMDEvZmxvb2RnYXRlcy1hdC1kYW0tZmFjaWxpdHktMTAyNC5qcGc%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
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.
![Fort Loudon [i.e., Loudoun] Dam, Tennessee. Tennessee Valley Authority (TVA). Construction](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5NDIvMDEvMDEvZm9ydC1sb3Vkb24taWUtbG91ZG91bi1kYW0tdGVubmVzc2VlLXRlbm5lc3NlZS12YWxsZXktYXV0aG9yaXR5LXR2YS1jb25zdHJ1Y3Rpb24tMTctMTAyNC5qcGc%3D/40/29/webp "Fort Loudon [i.e., Loudoun] Dam, Tennessee. Tennessee Valley Authority (TVA). Construction")
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 (TVA). Construction](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5NDIvMDEvMDEvZm9ydC1sb3Vkb24taWUtbG91ZG91bi1kYW0tdGVubmVzc2VlLXRlbm5lc3NlZS12YWxsZXktYXV0aG9yaXR5LXR2YS1jb25zdHJ1Y3Rpb24tMS0xMDI0LmpwZw%3D%3D/40/50/webp "Fort Loudon [i.e., Loudoun] Dam, Tennessee. Tennessee Valley Authority (TVA). Construction")
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.
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.
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
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
Milltown Dam, Spillway, Clark Fork River, 6 miles upstream from Missou...
Survey number: HAER MT-43-B Building/structure dates: 1908 Initial Construction
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
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
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
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
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
Mormon Flat Dam, On Salt River, Eastern Maricopa County, east of Phoen...
Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.
Reclaiming vast areas by irrigation the great Roosevelt Dam, Yuma, Ari...
Stereograph showing Theodore Roosevelt Dam. J218068 U.S. Copyright Office. Copyright by Keystone View Company. No. 16742.
Illinois Waterway, Marseilles Lock and Dam, 1 Hawk Drive, Marseilles, ...
Significance: Marseilles Lock and Dam Historic District is significant as a component of the Illinois Waterway, which was developed to provide a navigable route from Lake Michigan to the Mississippi River and b... More
Grand Coulee Dam, Washington, Panoramic Photograph
J 34551 U.S. Copyright Office Copyright deposit; Chas. A. Libby & Son; June 25, 1942. On front: "Photo by Chas. A. Libby & Son, Spokane, Wash., #24471. 6-12-'42."
Lake Lynn Hydroelectric Power House & Dam, Cheat River, Morgantown, Mo...
Significance: When built, the Lake Lynn power house and dam reflected the state of the art in American hydroelectric power technology and developed a very substantial portion of West Virginia's hydrologic resou... More
Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 ...
Significance: Milner Dam and its canal system have national significance in agricultural history as a rare successful example of state-supervised private irrigation development provided for in Senator Joseph M.... More
Mississippi River 9-Foot Channel Project, Lock & Dam No. 11, Upper Mis...
Significance: The U.S. Army Corps of Engineers Nine-Foot Channel Project (1927-1940) represents the culmination of a 100-year effort to improve the navigability of the Upper Mississippi River between the mouth ... More
Roosevelt Power Canal & Diversion Dam, Parallels Salt River, Roosevelt...
Significance: The Roosevelt Power Canal was built as an integral part of the Salt River Project and represents the U. S. Reclamation Service's first involvement in the construction of hydroelectric power facili... More
Salinas Dam, Salinas River near Pozo Road, Santa Margarita, San Luis O...
Significance: The Salinas Dam, a "hoof" type, inclined, variable radius arch cam, was designed by Raymond A. Hill, an important structural engineer who worked in Los Angeles, California between 1919 and the 196... More
Salinas Dam, Salinas River near Pozo Road, Santa Margarita, San Luis O...
Significance: The Salinas Dam, a "hoof" type, inclined, variable radius arch cam, was designed by Raymond A. Hill, an important structural engineer who worked in Los Angeles, California between 1919 and the 196... More
Horse Mesa Dam, Salt River, 65 miles East of Phoenix, Phoenix, Maricop...
Significance: It was the second dam constructed under the Salt River Project's hydroelectric expansion program in the 1920s. Survey number: HAER AZ-15 Building/structure dates: 1927 Initial Construction Nati... More
Upper Souris National Wildlife Refuge, Dam 96, Souris River Basin, Fox...
Significance: The dams within the J. Clark Salyer National Wildlife Refuge represent a historical movement to preserve wildlife and wildlife habitat in the United States, which began in the mid-19th century and... More
Milltown Dam, Clark Fork River, 6 miles upstream from Missoula, Millto...
Significance: The dam and power plant are significant for their association with W.A. Clark, one of the single-most important individuals in the economic and political history of Montana; for its association wi... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 8, On Mississip...
See HAER MN-20, Upper Mississippi River Nine-Foot Channel Project History, Locks and Dams 3-10, for additional information. Significance: The Upper Mississippi River Lock and Dam Project represents one of the l... More
Elwha River Hydroelectric System, Elwha Hydroelectric Dam & Plant, Por...
Unprocessed Field note material exists for this structure: N465 Survey number: HAER WA-130-A
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 9, Lynxville, C...
See HAER MN-20, Upper Mississippi River Nine-Foot Channel Project History, Locks and Dams 3-10, for additional information. Significance: The Upper Mississippi River Lock and Dam Project represents one of the l... More
New Croton Dam & Reservoir, Croton River, Croton-on-Hudson, Westcheste...
Picryl description: Public domain image of a waterfall, water stream, cascade, nature site, free to use, no copyright restrictions.
New Croton Dam & Reservoir, Croton River, Croton-on-Hudson, Westcheste...
Picryl description: Public domain image of a quarry, excavation site, free to use, no copyright restrictions.
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
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
Bonneville Project, Bonneville Dam, Columbia River, Bonneville, Multno...
Survey number: HAER OR-11-F Building/structure dates: 1937 Initial Construction
Pit 4 Diversion Dam, Pit River west of State Highway 89, Big Bend, Sha...
Significance: The Pit 4 Diversion Dam is important as an original feature of the Pit 3, 4 and 5 Hydroelectric Plant. Pit 4 Dam is an excellent example of early twentieth century hydroelectric architecture and ... More
Pit 4 Diversion Dam, Pit River west of State Highway 89, Big Bend, Sha...
Significance: The Pit 4 Diversion Dam is important as an original feature of the Pit 3, 4 and 5 Hydroelectric Plant. Pit 4 Dam is an excellent example of early twentieth century hydroelectric architecture and ... 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
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
![Roosevelt Dam, [Arizona] - Glass negative photogrpah. Public domain.](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5MTAvMDEvMDEvcm9vc2V2ZWx0LWRhbS1hcml6b25hLTItMTAyNC5qcGc%3D/40/51/webp "Roosevelt Dam, [Arizona] - Glass negative photogrpah. Public domain.")
Roosevelt Dam, [Arizona] - Glass negative photogrpah. Public domain.
Public domain historical photo, free to use, no copyright restrictions image - Picryl description
Granite Reef, gelatin silver print, Panoramic Photograph
Granite Reef diversion dam of the Salt River Project. J179545 U.S. Copyright Office Copyright deposit; West Coast Art Co.; March 25, 1913. Copyright claimant's address: L.A., Cal. No. 3058.
Roosevelt Dam, Arizona - Glass negative photogrpah. Public domain.
Public domain historical photo, free to use, no copyright restrictions image - Picryl description
Wilson Dam, Tenn. River, May 22, 1926
J283785 U.S. Copyright Office Copyright deposit; George Lee Bracey; June 28, 1926. No. 17.
Wilson Dam, gelatin silver print
Public domain image of an arch structure, bridge, historic place ruins, classical architecture, free to use, no copyright restrictions - Picryl description
Chickamauga Dam and powerhouse. General view of spillway with powerhou...
Public domain image of a large historic building, city hall, urban architecture, free to use, no copyright restrictions - Picryl description
Elephant Butte Dam, New Mexico. Great Depression public domain photogr...
Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.
Tennessee Valley Authority power and conservation. Fort Loudoun Dam co...
Picryl description: Public domain image of a quarry, mine, excavation, or mining site, free to use, no copyright restrictions.
![Fort Loudon [i.e., Loudoun] Dam, Tennessee. Tennessee Valley Authority (TVA). Construction at night](https://cache.getarchive.net/Prod/thumb/cdn4/L3Bob3RvLzE5NDIvMDEvMDEvZm9ydC1sb3Vkb24taWUtbG91ZG91bi1kYW0tdGVubmVzc2VlLXRlbm5lc3NlZS12YWxsZXktYXV0aG9yaXR5LXR2YS1jb25zdHJ1Y3Rpb24tMTQtMTAyNC5qcGc%3D/40/32/webp "Fort Loudon [i.e., Loudoun] Dam, Tennessee. Tennessee Valley Authority (TVA). Construction at night")
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.
A black and white photo of a dam. Office of War Information Photograph
Picryl description: Public domain image of a historical building, landmark architecture, world heritage, free to use, no copyright restrictions.
Spring pulpwood drive on Brown Company timber holdings in Maine. Wood ...
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
View of an intake tower at Hoover Dam, which straddles the Arizona and...
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
Welding of the 30' diameter penstocks for the Boulder power plant
In album: Boulder Dam: a portfolio of photographs prepared for Hon. Harold L. Ickes, Secretary of the Interior, photographs and format by B.D. Glaha, Boulder City, Nevada, 1934. Inventory title: Top workings o... More
Bartlett Dam, Verde River, Phoenix, Maricopa County, AZ
Significance: Bartlett Dam was the first multiple arch dam constructed by the Bureau of Reclamation. It was also the highest multiple arch dam constructed in the United States at the time of its completion. Su... 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
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
Columbia Basin Project, Grand Coulee Dam Powerplant Complex, Grand Cou...
Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.
Keechelus Dam, Yakima River, 10 miles northwest of Easton, Easton, Kit...
Picryl description: Public domain image of a waterfall, water stream, cascade, nature site, free to use, no copyright restrictions.
Keechelus Dam, Spillway, Yakim River, 10 miles northwest of Easton, Ea...
Survey number: HAER WA-80-C Public domain photograph of electric power generation, power lines, free to use, no copyright restrictions image - Picryl description
Columbia River Bridge at Grand Coulee Dam, Spanning Columbia River at ...
Significance: The U.S. Bureau of Reclamation constructed this structure as part of the Grand Coulee Dam Columbia Basin Reclamation Project. It is a good example of 1930s steel cantilever bridge design in Washi... More
Carlsbad Irrigation District, McMillan Dam, On Pecos River, 13 miles N...
Significance: The Pecos Irrigation and Improvement Company constructed McMillan Dam in 1893 as part of an overly-ambitious plan to irrigate hundreds of thousands of acres in the Pecos Valley. The reservoir cre... More
Croton Hydroelectric Plant, Spillway, Croton Dam Road at Muskegon Rive...
Significance: The Croton Hydroelectric Plant spillway was a key design feature of this electrical generation complex, an important example of the work of William G. Fargo, a Jackson, Michigan civil engineer who... More
Wind River Diverson Dam Bridge, Spanning Wind River on County Road No....
Significance: The Wind River Diversion Dam Bridge consists of eight Warren Pony trusses for a length of 655 feet. This is the greatest number of spans for a highway bridge in the State. Survey number: HAER WY... More
Long Lake Hydroelectric Plant, Spanning Spokane River, Ford, Stevens C...
Significance: The Long Lake hydroelectric facility is significant as one of the earliest and, for many years, largest hydroelectric generating facilities in The Washington Water Power Company's electrical power... More
Ouachita River Lock & Dam No. 8, Ouachita River at River Mile 282.8, C...
Significance: The Ouachita River Lock and Dam No. 8 is one of the oldest remaining locks and dams in the State of Arkansas. It represents a vital segment in the earliest attempt by the U.S. Army Corps of Engin... More
Milner Dam & Main Canal: Twin Falls Canal Company, On Snake River, 11 ...
Significance: Milner Dam and its canal system have national significance in agricultural history as a rare successful example of state-supervised private irrigation development provided for in Senator Joseph M.... More
Gene Pump Plant, South of Gene Wash Reservoir, 2 miles west of Whitset...
Survey number: HAER CA-242 Public domain photograph of electric power generation, power lines, free to use, no copyright restrictions image - Picryl description
Long Lake Hydroelectric Plant, Spillway Dam, Spanning Spokane River, F...
Significance: The Long Lake hydroelectric facility is significant as one of the earliest and, for many years, largest hydroelectric generating facilities in The Washington Water Power Company's electrical power... More
Milltown Dam, Clark Fork River, 6 miles upstream from Missoula, Millto...
Significance: The dam and power plant are significant for their association with W.A. Clark, one of the single-most important individuals in the economic and political history of Montana; for its association wi... More