Upper Mississippi River 9-Foot Channel, Lock & Dam No. 4, Alma, Buffal...
Significance: This lock and dam was the first constructed as part of the Upper Mississippi River Nine-Foot Channel Project. It contains the standard items on most of the lock and dam structures in this project... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 4, Alma, Buffal...
Significance: This lock and dam was the first constructed as part of the Upper Mississippi River Nine-Foot Channel Project. It contains the standard items on most of the lock and dam structures in this project... More
Upper Mississippi River 9-Foot Channel, Lock & Dam No. 4, Alma, Buffal...
Significance: This lock and dam was the first constructed as part of the Upper Mississippi River Nine-Foot Channel Project. It contains the standard items on most of the lock and dam structures in this project... More
Starved Rock Locks & Dam, Illinois Waterway River mile 231, Peru, La S...
Significance: Starved Rock Lock and Dam consists of a 1,310' straight-crested, reinforced-concrete gravity dam and a 110' x 600' Ohio River Standard lock with horizontally framed miter gates. A 518' headgate s... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 3, Red ...
Picryl description: Public domain photograph of a dock, harbor, boats, water, free to use, no copyright restrictions.
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 3, Red ...
Picryl description: Public domain photograph of a dock, harbor, boats, water, free to use, no copyright restrictions.
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 3, Red ...
Picryl description: Public domain image of an industrial equipment, workshop, assembly line, factory, power engine, 19th-20th century, free to use, no copyright restrictions.
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 3, Red ...
Picryl description: Public domain image of a bridge over a water stream, free to use, no copyright restrictions.
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 3, Red ...
Picryl description: Public domain image of an industrial equipment, workshop, assembly line, factory, power engine, 19th-20th century, free to use, no copyright restrictions.
Kachess Dam, 1904 Cascade Canal Company Crib Dam, Kachess River, 1.5 m...
Picryl description: Public domain image of a quarry, excavation or mining site, free to use, no copyright restrictions.
Kachess Dam, 1904 Cascade Canal Company Crib Dam, Kachess River, 1.5 m...
Public domain photograph - historical image of Washington State, United States, free to use, no copyright restrictions image - Picryl description
Kachess Dam, 1904 Cascade Canal Company Crib Dam, Kachess River, 1.5 m...
Public domain photograph - historical image of Washington State, United States, free to use, no copyright restrictions image - Picryl description
Kachess Dam, 1904 Cascade Canal Company Crib Dam, Kachess River, 1.5 m...
Public domain photograph - historical image of Washington State, United States, free to use, no copyright restrictions image - Picryl description
Kachess Dam, 1904 Cascade Canal Company Crib Dam, Kachess River, 1.5 m...
Public domain photograph - historical image of Washington State, United States, free to use, no copyright restrictions image - Picryl description
Kachess Dam, 1904 Cascade Canal Company Crib Dam, Kachess River, 1.5 m...
Public domain photograph - historical image of Washington State, United States, free to use, no copyright restrictions image - Picryl description
Colorado River Aqueduct, From Colorado River to Lake Mathews, Parker D...
Significance: The Colorado River Aqueduct pumps water from the Colorado River through, over, and across mountains and desert in a 242-mile-long march to the coastal plain of Southern California. When completed... More
Colorado River Aqueduct, From Colorado River to Lake Mathews, Parker D...
Significance: The Colorado River Aqueduct pumps water from the Colorado River through, over, and across mountains and desert in a 242-mile-long march to the coastal plain of Southern California. When completed... More
Colorado River Aqueduct, From Colorado River to Lake Mathews, Parker D...
Significance: The Colorado River Aqueduct pumps water from the Colorado River through, over, and across mountains and desert in a 242-mile-long march to the coastal plain of Southern California. When completed... More
Colorado River Aqueduct, From Colorado River to Lake Mathews, Parker D...
Significance: The Colorado River Aqueduct pumps water from the Colorado River through, over, and across mountains and desert in a 242-mile-long march to the coastal plain of Southern California. When completed... More
Tieton Dam, South & East of State Highway 12, Naches, Yakima County, W...
Significance: At the time of its completion in 1925, the Tieton Dam was the highest earthfill dam in the world. "Two of the foremost engineers in Western water development, Frank Crowe and Frank Weymouth, were... More
Tieton Dam, South & East of State Highway 12, Naches, Yakima County, W...
Significance: At the time of its completion in 1925, the Tieton Dam was the highest earthfill dam in the world. "Two of the foremost engineers in Western water development, Frank Crowe and Frank Weymouth, were... 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
Elwha River Hydroelectric System, Elwha Hydroelectric Dam & Plant, Por...
Unprocessed Field note material exists for this structure: N465 Survey number: HAER WA-130-A
Elwha River Hydroelectric System, Elwha Hydroelectric Dam & Plant, Por...
Unprocessed Field note material exists for this structure: N465 Survey number: HAER WA-130-A
Swan Falls Dam, Snake River, Kuna, Ada County, ID
Picryl description: Public domain photograph of a dock, harbor, boats, water, free to use, no copyright restrictions.
Swan Falls Dam, Snake River, Kuna, Ada County, ID
Public domain scan of a plan of settlement buildings, free to use, no copyright restrictions image - Picryl description
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
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
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
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
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 7, Dres...
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
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 7, Dres...
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
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 7, Dres...
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
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 7, Dres...
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
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 7, Dres...
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
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 7, Dres...
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
Gillespie Dam Bridge, Spanning Gila River on Old US 80 Highway, south ...
Significance: Prior to completion of this bridge in 1927, traffic on the Pikes Peak Ocean-to-Ocean Highway at this point was often halted by flooding on the Gila River. The Gillespie Dam Bridge was this strateg... More
Gillespie Dam Bridge, Spanning Gila River on Old US 80 Highway, south ...
Significance: Prior to completion of this bridge in 1927, traffic on the Pikes Peak Ocean-to-Ocean Highway at this point was often halted by flooding on the Gila River. The Gillespie Dam Bridge was this strateg... More
Gillespie Dam Bridge, Spanning Gila River on Old US 80 Highway, south ...
Significance: Prior to completion of this bridge in 1927, traffic on the Pikes Peak Ocean-to-Ocean Highway at this point was often halted by flooding on the Gila River. The Gillespie Dam Bridge was this strateg... More
Gillespie Dam Bridge, Spanning Gila River on Old US 80 Highway, south ...
Significance: Prior to completion of this bridge in 1927, traffic on the Pikes Peak Ocean-to-Ocean Highway at this point was often halted by flooding on the Gila River. The Gillespie Dam Bridge was this strateg... More
Gillespie Dam Bridge, Spanning Gila River on Old US 80 Highway, south ...
Significance: Prior to completion of this bridge in 1927, traffic on the Pikes Peak Ocean-to-Ocean Highway at this point was often halted by flooding on the Gila River. The Gillespie Dam Bridge was this strateg... More
Grand Valley Diversion Dam, Half a mile north of intersection of I-70 ...
Significance: Constructed between 1913 and 1916, the dam is the key structure of the Bureau of Reclamation's Grand Valley Project, which provides water to 42,000 acres of semi-arid land. At the time of its comp... More
Grand Valley Diversion Dam, Half a mile north of intersection of I-70 ...
Significance: Constructed between 1913 and 1916, the dam is the key structure of the Bureau of Reclamation's Grand Valley Project, which provides water to 42,000 acres of semi-arid land. At the time of its comp... More
Grand Valley Diversion Dam, Half a mile north of intersection of I-70 ...
Significance: Constructed between 1913 and 1916, the dam is the key structure of the Bureau of Reclamation's Grand Valley Project, which provides water to 42,000 acres of semi-arid land. At the time of its comp... More
Grand Valley Diversion Dam, Half a mile north of intersection of I-70 ...
Significance: Constructed between 1913 and 1916, the dam is the key structure of the Bureau of Reclamation's Grand Valley Project, which provides water to 42,000 acres of semi-arid land. At the time of its comp... More
Grand Valley Diversion Dam, Half a mile north of intersection of I-70 ...
Significance: Constructed between 1913 and 1916, the dam is the key structure of the Bureau of Reclamation's Grand Valley Project, which provides water to 42,000 acres of semi-arid land. At the time of its comp... More
Grand Valley Diversion Dam, Half a mile north of intersection of I-70 ...
Significance: Constructed between 1913 and 1916, the dam is the key structure of the Bureau of Reclamation's Grand Valley Project, which provides water to 42,000 acres of semi-arid land. At the time of its comp... More
Illinois Waterway, La Grange Lock and Dam, 3/4 mile south of Country 7...
Significance: La Grange Lock and Dam 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 beyond. La Grange D... More
Illinois Waterway, La Grange Lock and Dam, 3/4 mile south of Country 7...
Significance: La Grange Lock and Dam 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 beyond. La Grange D... More
Coolidge Dam, Gila River, Peridot, Gila County, AZ - Bureau of Indian ...
Significance: Coolidge Dam remedied the water needs of the Pima and Maricopa Tribes on the Gila River Reservation, and also provided water for the neighboring Anglo community. Structurally, Coolidge Dam was th... More
Coolidge Dam, Gila River, Peridot, Gila County, AZ - Bureau of Indian ...
Significance: Coolidge Dam remedied the water needs of the Pima and Maricopa Tribes on the Gila River Reservation, and also provided water for the neighboring Anglo community. Structurally, Coolidge Dam was th... More
Coolidge Dam, Gila River, Peridot, Gila County, AZ - Bureau of Indian ...
Significance: Coolidge Dam remedied the water needs of the Pima and Maricopa Tribes on the Gila River Reservation, and also provided water for the neighboring Anglo community. Structurally, Coolidge Dam was th... More
Coolidge Dam, Gila River, Peridot, Gila County, AZ - Bureau of Indian ...
Significance: Coolidge Dam remedied the water needs of the Pima and Maricopa Tribes on the Gila River Reservation, and also provided water for the neighboring Anglo community. Structurally, Coolidge Dam was th... More
Coolidge Dam, Gila River, Peridot, Gila County, AZ - Bureau of Indian ...
Significance: Coolidge Dam remedied the water needs of the Pima and Maricopa Tribes on the Gila River Reservation, and also provided water for the neighboring Anglo community. Structurally, Coolidge Dam was th... More
Coolidge Dam, Gila River, Peridot, Gila County, AZ - Bureau of Indian ...
Significance: Coolidge Dam remedied the water needs of the Pima and Maricopa Tribes on the Gila River Reservation, and also provided water for the neighboring Anglo community. Structurally, Coolidge Dam was th... More
Coolidge Dam, Gila River, Peridot, Gila County, AZ - Bureau of Indian ...
Significance: Coolidge Dam remedied the water needs of the Pima and Maricopa Tribes on the Gila River Reservation, and also provided water for the neighboring Anglo community. Structurally, Coolidge Dam was th... More
Coolidge Dam, Gila River, Peridot, Gila County, AZ - Bureau of Indian ...
Significance: Coolidge Dam remedied the water needs of the Pima and Maricopa Tribes on the Gila River Reservation, and also provided water for the neighboring Anglo community. Structurally, Coolidge Dam was th... More
Coolidge Dam, Gila River, Peridot, Gila County, AZ - Bureau of Indian ...
Significance: Coolidge Dam remedied the water needs of the Pima and Maricopa Tribes on the Gila River Reservation, and also provided water for the neighboring Anglo community. Structurally, Coolidge Dam was th... More
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 5A, Win...
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
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 5A, Win...
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
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 5A, Win...
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
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 5A, Win...
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
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 5A, Win...
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
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 5A, Win...
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
Upper Mississippi River 9-Foot Channel Project, Lock & Dam No. 5A, Win...
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
Wickiup Dam, Outlet Works, Deschutes River, La Pine, Deschutes County,...
Survey number: HAER OR-112-A Public domain photograph - historical image of Oregon, United States, free to use, no copyright restrictions image - Picryl description
San Carlos Irrigation Project, Sacaton Dam & Bridge, Gila River, T4S R...
Survey number: HAER AZ-50-D Public domain photograph - historical image of Arizona, United States, free to use, no copyright restrictions image - Picryl description
San Carlos Irrigation Project, Sacaton Dam & Bridge, Gila River, T4S R...
Survey number: HAER AZ-50-D Public domain photograph - historical image of Arizona, United States, free to use, no copyright restrictions image - Picryl description
San Carlos Irrigation Project, Sacaton Dam & Bridge, Gila River, T4S R...
Survey number: HAER AZ-50-D Public domain photograph - historical image of Arizona, United States, free to use, no copyright restrictions image - Picryl description
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
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
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
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
Bronx River Parkway Reservation, The Bronx to Kensico Dam, White Plain...
Significance: The Bronx River Parkway Reservation was the first public parkway designed explicitly for automobile use. The project began as an environmental restoration and park development initiative that aim... More
Bronx River Parkway Reservation, The Bronx to Kensico Dam, White Plain...
Significance: The Bronx River Parkway Reservation was the first public parkway designed explicitly for automobile use. The project began as an environmental restoration and park development initiative that aim... More
Bronx River Parkway Reservation, The Bronx to Kensico Dam, White Plain...
Significance: The Bronx River Parkway Reservation was the first public parkway designed explicitly for automobile use. The project began as an environmental restoration and park development initiative that aim... More
Bronx River Parkway Reservation, The Bronx to Kensico Dam, White Plain...
Significance: The Bronx River Parkway Reservation was the first public parkway designed explicitly for automobile use. The project began as an environmental restoration and park development initiative that aim... More
Bronx River Parkway Reservation, The Bronx to Kensico Dam, White Plain...
Significance: The Bronx River Parkway Reservation was the first public parkway designed explicitly for automobile use. The project began as an environmental restoration and park development initiative that aim... More
Bronx River Parkway Reservation, The Bronx to Kensico Dam, White Plain...
Significance: The Bronx River Parkway Reservation was the first public parkway designed explicitly for automobile use. The project began as an environmental restoration and park development initiative that aim... More
Bronx River Parkway Reservation, The Bronx to Kensico Dam, White Plain...
Significance: The Bronx River Parkway Reservation was the first public parkway designed explicitly for automobile use. The project began as an environmental restoration and park development initiative that aim... More
Bronx River Parkway Reservation, The Bronx to Kensico Dam, White Plain...
Significance: The Bronx River Parkway Reservation was the first public parkway designed explicitly for automobile use. The project began as an environmental restoration and park development initiative that aim... More
Bronx River Parkway Reservation, The Bronx to Kensico Dam, White Plain...
Significance: The Bronx River Parkway Reservation was the first public parkway designed explicitly for automobile use. The project began as an environmental restoration and park development initiative that aim... More
Bronx River Parkway Reservation, The Bronx to Kensico Dam, White Plain...
Significance: The Bronx River Parkway Reservation was the first public parkway designed explicitly for automobile use. The project began as an environmental restoration and park development initiative that aim... 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
Upper Mississippi River Nine-Foot Channel Project, Lock & Dam Complex ...
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
Upper Mississippi River Nine-Foot Channel Project, Lock & Dam Complex ...
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
Upper Mississippi River Nine-Foot Channel Project, Lock & Dam Complex ...
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
Illinois Waterway, Lockport Lock, Dam and Power House, 2502 Channel Dr...
Significance: The Lockport Lock, Dam and Power House Historic District is significant both for its role in navigation of the Chicago Sanitary and Ship Canal and the Illinois Waterway and for the vertical lift l... More
Illinois Waterway, Lockport Lock, Dam and Power House, 2502 Channel Dr...
Significance: The Lockport Lock, Dam and Power House Historic District is significant both for its role in navigation of the Chicago Sanitary and Ship Canal and the Illinois Waterway and for the vertical lift l... More
Illinois Waterway, Lockport Lock, Dam and Power House, 2502 Channel Dr...
Significance: The Lockport Lock, Dam and Power House Historic District is significant both for its role in navigation of the Chicago Sanitary and Ship Canal and the Illinois Waterway and for the vertical lift l... 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
Bonneville Project, Bonneville Dam, Columbia River, Bonneville, Multno...
Survey number: HAER OR-11-F Building/structure dates: 1937 Initial Construction
Bonneville Project, Bonneville Dam, Columbia River, Bonneville, Multno...
Survey number: HAER OR-11-F Building/structure dates: 1937 Initial Construction
Bonneville Project, Bonneville Dam, Columbia River, Bonneville, Multno...
Survey number: HAER OR-11-F Building/structure dates: 1937 Initial Construction
Bonneville Project, Bonneville Dam, Columbia River, Bonneville, Multno...
Survey number: HAER OR-11-F Building/structure dates: 1937 Initial Construction