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
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
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
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
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
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
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
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).
Spillway at Avalon Dam constructed by Pecos Valley Irrigation & Improv...
Picryl description: Public domain image of a waterfall, water stream, cascade, nature site, free to use, no copyright restrictions.
Spillway gate on the historic Columbia Canal at Riverfront Park in dow...
Title, date and keywords based on information provided by the photographer. Purchase; Carol M. Highsmith Photography, Inc.; 2017; (DLC/PP-2016:103-6). Forms part of: Carol M. Highsmith's America Project in the ... More
J. Clark Salyer National Wildlife Refuge, Dam 320, Along Lower Souris ...
Picryl description: Public domain image of wildlife, wild animals, nature, free to use, no copyright restrictions.
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
Milltown Dam, Spillway, Clark Fork River, 6 miles upstream from Missou...
Survey number: HAER MT-43-B Building/structure dates: 1908 Initial Construction
Champlain Canal, Waterford Locks, U.S. Route 4, Waterford, Saratoga Co...
Significance: The Champlain Canal was built to link Lake Champlain with the Erie Canal and with the tidewater of the Hudson River. The Canal is presently part of the New York State Barge Canal system, the most... 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
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
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
Whitman Estate, Lower Pond Spillway, Approx. .5 mile south of intersec...
Significance: The Lower Pond Spillway is a contributing element to the Whiteman Estate, a good example of the combination of Colonial and Colonial Revival styles which incorporates mid-twentieth-century landsca... 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
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
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
Skagit Power Development, Diablo Dam, On Skagit River, 6.9 miles upstr...
Unprocessed Field note material exists for this structure: FN-7 Survey number: HAER WA-24-F Building/structure dates: 1930 Initial Construction
Skagit Power Development, Diablo Dam, On Skagit River, 6.9 miles upstr...
Unprocessed Field note material exists for this structure: FN-7 Survey number: HAER WA-24-F Building/structure dates: 1930 Initial Construction
Appleton Locks & Dams, Fox River at Oneida Street, Appleton, Outagamie...
Significance: The Appleton Locks and Dams Complex allows passage for watercraft around 1 1/2 miles of rapids as well as a 4 foot falls present in the Lower Fox River at Appleton. Survey number: HAER WI-84 Bui... 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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
Pardee Dam, South Spillway, Mokulumne River, Valley Springs, Calaveras...
Survey number: HAER CA-168-B Public domain photograph - historical image of California, United States, free to use, no copyright restrictions image - Picryl description
Cushman No. 1 Hydroelectric Power Plant, Spillway, North Fork of Skoko...
Significance: The Cushman No. 1 Hydroelectric Power Plant is a significant example of medium head hydroelectric technology in the west from the 1920s. Located in steep, inaccessible terrain prone to flooding, ... More
Cushman No. 1 Hydroelectric Power Plant, Spillway, North Fork of Skoko...
Significance: The Cushman No. 1 Hydroelectric Power Plant is a significant example of medium head hydroelectric technology in the west from the 1920s. Located in steep, inaccessible terrain prone to flooding, ... More
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
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 6, Trempealeau,...
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. 6, Trempealeau,...
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. 6, Trempealeau,...
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. 6, Trempealeau,...
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. 6, Trempealeau,...
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. 6, Trempealeau,...
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 Souris National Wildlife Refuge, Dam 83, Souris River Basin, Fox...
Significance: The dams within the Upper Souris 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 co... More
Hardy Hydroelectric Plant, Emergency Spillway, 6928 East Thirty-sixth ...
Significance: The spillway 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 com... 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
Upper Souris National Wildlife Refuge, Dam 87, Souris River Basin, Fox...
Significance: The dams within the Upper Souris 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 co... More
Upper Souris National Wildlife Refuge, Dam 87, Souris River Basin, Fox...
Significance: The dams within the Upper Souris 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 co... More
Thirty-first Street Overflow Structure, Thirty-first Street, Denver, D...
Significance: This overflow structure comprised an important part of the sanitary engineering system built in Denver during the last part of the 19th century. Survey number: HAER CO-18 Building/structure date... More
Thirty-first Street Overflow Structure, Thirty-first Street, Denver, D...
Significance: This overflow structure comprised an important part of the sanitary engineering system built in Denver during the last part of the 19th century. Survey number: HAER CO-18 Building/structure date... More
Cedars Lock & Dam, 4527 East Wisconsin Road, Little Chute, Outagamie C...
Significance: The Cedars Lock and Dam Complex allowed passage around the Cedars Rapids for watercraft navigating between Little Chute and Appleton and thus served as one integral part of the Lower Fox River Wat... More
DePere Lock & Dam, Fox River at James Street, De Pere, Brown County, W...
Significance: The De Pere Lock and Dam allows passage from Green Bay in Lake Michigan around rapids and into the Lower Fox River. The complex is the first link in a series of locks and dams that allows passage... More
Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon Count...
Significance: The Deer Flat Embankments, which impound Lake Lowell, are significant as the first large storage feature built by the U.S. Reclamation Service on the Boise Project, one of the largest of the early... More
Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon Count...
Significance: The Deer Flat Embankments, which impound Lake Lowell, are significant as the first large storage feature built by the U.S. Reclamation Service on the Boise Project, one of the largest of the early... More
Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon Count...
Significance: The Deer Flat Embankments, which impound Lake Lowell, are significant as the first large storage feature built by the U.S. Reclamation Service on the Boise Project, one of the largest of the early... More
Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon Count...
Significance: The Deer Flat Embankments, which impound Lake Lowell, are significant as the first large storage feature built by the U.S. Reclamation Service on the Boise Project, one of the largest of the early... More
Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon Count...
Significance: The Deer Flat Embankments, which impound Lake Lowell, are significant as the first large storage feature built by the U.S. Reclamation Service on the Boise Project, one of the largest of the early... More
Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon Count...
Significance: The Deer Flat Embankments, which impound Lake Lowell, are significant as the first large storage feature built by the U.S. Reclamation Service on the Boise Project, one of the largest of the early... More
Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon Count...
Significance: The Deer Flat Embankments, which impound Lake Lowell, are significant as the first large storage feature built by the U.S. Reclamation Service on the Boise Project, one of the largest of the early... More
Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon Count...
Significance: The Deer Flat Embankments, which impound Lake Lowell, are significant as the first large storage feature built by the U.S. Reclamation Service on the Boise Project, one of the largest of the early... More
Boise Project, Deer Flat Embankments, Lake Lowell, Nampa, Canyon Count...
Significance: The Deer Flat Embankments, which impound Lake Lowell, are significant as the first large storage feature built by the U.S. Reclamation Service on the Boise Project, one of the largest of the early... More
J. Clark Salyer National Wildlife Refuge, Dam 332, Along Lower Souris ...
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
J. Clark Salyer National Wildlife Refuge, Dam 332, Along Lower Souris ...
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
Rapide Croche Lock & Dam, At 22.8 mile marker on Lower Fox River, Wrig...
Significance: The Rapide Croche Lock and Dam Complex allowed water navigation around rapids in the Fox River for boats traveling between Kaukauna and Green Bay. This complex served as an integral part of the Lo... 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
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
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
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
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
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
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
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
J. Clark Salyer National Wildlife Refuge, Dam 357, Along Lower Souris ...
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
J. Clark Salyer National Wildlife Refuge, Dam 357, Along Lower Souris ...
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
Abbeville Hydroelectric Power Plant, State Highway 284 & County Road 7...
Significance: J. Roy Pennell acquired property and began construction of the multiple arch reinforced concrete dam in 1933. Pennell abandoned the project in 1935 and it was completed by the City of Abbeville w... More
Abbeville Hydroelectric Power Plant, State Highway 284 & County Road 7...
Significance: J. Roy Pennell acquired property and began construction of the multiple arch reinforced concrete dam in 1933. Pennell abandoned the project in 1935 and it was completed by the City of Abbeville w... More
Abbeville Hydroelectric Power Plant, State Highway 284 & County Road 7...
Significance: J. Roy Pennell acquired property and began construction of the multiple arch reinforced concrete dam in 1933. Pennell abandoned the project in 1935 and it was completed by the City of Abbeville w... More
Abbeville Hydroelectric Power Plant, State Highway 284 & County Road 7...
Significance: J. Roy Pennell acquired property and began construction of the multiple arch reinforced concrete dam in 1933. Pennell abandoned the project in 1935 and it was completed by the City of Abbeville w... More
Abbeville Hydroelectric Power Plant, State Highway 284 & County Road 7...
Significance: J. Roy Pennell acquired property and began construction of the multiple arch reinforced concrete dam in 1933. Pennell abandoned the project in 1935 and it was completed by the City of Abbeville w... More
Abbeville Hydroelectric Power Plant, State Highway 284 & County Road 7...
Significance: J. Roy Pennell acquired property and began construction of the multiple arch reinforced concrete dam in 1933. Pennell abandoned the project in 1935 and it was completed by the City of Abbeville w... More
Prado Dam, Spillway, Santa Ana River near junction of State Highways 7...
Public domain scan of an architecture diagram, architectural drawing, building plan, or design, free to use, no copyright restrictions - Picryl description.
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
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
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