Haddam Neck Nuclear Power Plant, Screenwell House, 362 Injun Hollow Ro...
The addendum report (beginning on page 16) supersedes the original report. Researchers should consider the addendum report the definitive version and consult it instead of the original one. Significance: The Ha... More
Shoshone Falls Hydroelectric Project, Intake, North Bank of Snake Riv...
Significance: The intake represents an original component of the 1921 expansion of the Shoshone Falls Hydroelectric Project and the point at which water is channeled into the tunnel and penstock system, which d... More
Shoshone Falls Hydroelectric Project, Intake, North Bank of Snake Riv...
Significance: The intake represents an original component of the 1921 expansion of the Shoshone Falls Hydroelectric Project and the point at which water is channeled into the tunnel and penstock system, which d... More
Yosemite Hydroelectric Power Plant, Highways 120 & 140, Yosemite Villa...
Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.
Skagit Power Development, Newhalem Powerhouse & Dam, On Skagit River, ...
Significance: The Newhalem Power Plant's purpose was to provide temporary power for construction of the first dam and City Camp (Newhalem). The Plant began operation 1921. In the early 1950s, was semiautomate... 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
Pillsbury Milling Complex, Pillsbury "A" Mill, 116 Third Avenue/301 Ma...
Significance: This mill is the most imposing structure on Main Street. Still operative, the mill more than any other building symbolizes the role of Minneapolis as a major U.S. Flour Milling Center from 1880-1... More
Pillsbury Milling Complex, Pillsbury "A" Mill, 116 Third Avenue/301 Ma...
Significance: This mill is the most imposing structure on Main Street. Still operative, the mill more than any other building symbolizes the role of Minneapolis as a major U.S. Flour Milling Center from 1880-1... More
Pillsbury Milling Complex, Pillsbury "A" Mill, 116 Third Avenue/301 Ma...
Significance: This mill is the most imposing structure on Main Street. Still operative, the mill more than any other building symbolizes the role of Minneapolis as a major U.S. Flour Milling Center from 1880-1... More
Kalaupapa Water Supply System, Waikolu Valley to Kalaupapa Settlement,...
The address used in title block for the measured drawings incorrectly identifies the location as Maui County. The Kalaupapa Water Supply System is located in Kalawao County. Significance: From 1866, Hawaiians ... More
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
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
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
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
Yosemite Hydroelectric Power Plant, Highways 120 & 140, Yosemite Villa...
Picryl description: Public domain image of a river or lake, forest, trees, water stream, free to use, no copyright restrictions.
Yosemite Hydroelectric Power Plant, Highways 120 & 140, Yosemite Villa...
Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.
Yosemite Hydroelectric Power Plant, Highways 120 & 140, Yosemite Villa...
Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.
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
Three Bears Lake & Dams, Water Control Box, North of Marias Pass, East...
Survey number: HAER MT-88-C Building/structure dates: 1902 Initial Construction
Three Bears Lake & Dams, Water Control Box, North of Marias Pass, East...
Survey number: HAER MT-88-C Building/structure dates: 1902 Initial Construction
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
Pillsbury Milling Complex, Pillsbury "A" Mill, 116 Third Avenue/301 Ma...
Significance: This mill is the most imposing structure on Main Street. Still operative, the mill more than any other building symbolizes the role of Minneapolis as a major U.S. Flour Milling Center from 1880-1... More
Santa Ana River Hydroelectric System, Redlands, San Bernardino County,...
Picryl description: Public domain image of a hydroelectric dam, industrial facility, power generation, water cascade, free to use, no copyright restrictions.
Santa Ana River Hydroelectric System, Redlands, San Bernardino County,...
Picryl description: Public domain image of a hydroelectric dam, industrial facility, power generation, water cascade, free to use, no copyright restrictions.
Kalaupapa Water Supply System, Waikolu Valley to Kalaupapa Settlement,...
The address used in title block for the measured drawings incorrectly identifies the location as Maui County. The Kalaupapa Water Supply System is located in Kalawao County. Significance: From 1866, Hawaiians ... More
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
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
Snoqualmie Falls Hydroelectric Project, Intake Two, Tunnel Portals, Fo...
Significance: Construction of the Snoqualmie Falls Hydroelectric Project began in 1898 near the falls of the falls of the Snoqualmie River. It was the first power plant successfully constructed completely under... More
Yosemite Hydroelectric Power Plant, Highways 120 & 140, Yosemite Villa...
Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.
Yosemite Hydroelectric Power Plant, Highways 120 & 140, Yosemite Villa...
Picryl description: Public domain image of a park, trees, outdoors, free to use, no copyright restrictions.
Yosemite Hydroelectric Power Plant, Highways 120 & 140, Yosemite Villa...
Picryl description: Public domain image of an industrial equipment, workshop, assembly line, factory, power engine, 19th-20th century, free to use, no copyright restrictions.
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
Pillsbury Milling Complex, Pillsbury "A" Mill, 116 Third Avenue/301 Ma...
Significance: This mill is the most imposing structure on Main Street. Still operative, the mill more than any other building symbolizes the role of Minneapolis as a major U.S. Flour Milling Center from 1880-1... More
Pillsbury Milling Complex, Pillsbury "A" Mill, 116 Third Avenue/301 Ma...
Significance: This mill is the most imposing structure on Main Street. Still operative, the mill more than any other building symbolizes the role of Minneapolis as a major U.S. Flour Milling Center from 1880-1... More
Pillsbury Milling Complex, Pillsbury "A" Mill, 116 Third Avenue/301 Ma...
Significance: This mill is the most imposing structure on Main Street. Still operative, the mill more than any other building symbolizes the role of Minneapolis as a major U.S. Flour Milling Center from 1880-1... More
Pillsbury Milling Complex, Pillsbury "A" Mill, 116 Third Avenue/301 Ma...
Significance: This mill is the most imposing structure on Main Street. Still operative, the mill more than any other building symbolizes the role of Minneapolis as a major U.S. Flour Milling Center from 1880-1... More
Santa Ana River Hydroelectric System, Redlands, San Bernardino County,...
Public domain photograph of a mountain pass, mountains, nature, mountain range, view, landscape, rocks, free to use, no copyright restrictions - Picryl description
Kalaupapa Water Supply System, Waikolu Valley to Kalaupapa Settlement,...
The address used in title block for the measured drawings incorrectly identifies the location as Maui County. The Kalaupapa Water Supply System is located in Kalawao County. Significance: From 1866, Hawaiians ... More
Kalaupapa Water Supply System, Waikolu Valley to Kalaupapa Settlement,...
The address used in title block for the measured drawings incorrectly identifies the location as Maui County. The Kalaupapa Water Supply System is located in Kalawao County. Significance: From 1866, Hawaiians ... More
Kalaupapa Water Supply System, Waikolu Valley to Kalaupapa Settlement,...
The address used in title block for the measured drawings incorrectly identifies the location as Maui County. The Kalaupapa Water Supply System is located in Kalawao County. Significance: From 1866, Hawaiians ... More
Yosemite Hydroelectric Power Plant, Highways 120 & 140, Yosemite Villa...
Picryl description: Public domain image of a bridge, water, historic structure, free to use, no copyright restrictions.
Yosemite Hydroelectric Power Plant, Highways 120 & 140, Yosemite Villa...
Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.
Yosemite Hydroelectric Power Plant, Highways 120 & 140, Yosemite Villa...
Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.
Childs-Irving Hydroelectric Project, Childs System, Sally May-Purple M...
Survey number: HAER AZ-65-M Building/structure dates: 1908 Initial Construction
Santa Ana River Hydroelectric System, SAR-2 Intake, Redlands, San Bern...
Survey number: HAER CA-130-O Building/structure dates: 1898 Initial Construction Building/structure dates: 1905 Subsequent Work Building/structure dates: 1904 Subsequent Work
Skagit Power Development, Newhalem Powerhouse & Dam, On Skagit River, ...
Significance: The Newhalem Power Plant's purpose was to provide temporary power for construction of the first dam and City Camp (Newhalem). The Plant began operation 1921. In the early 1950s, was semiautomate... More
Twin Lakes Reservoir No.1, Intake & Outlet Structure, Head of Big Goos...
Picryl description: Public domain image of a quarry, excavation or mining site, free to use, no copyright restrictions.
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
Pillsbury Milling Complex, Pillsbury "A" Mill, 116 Third Avenue/301 Ma...
Significance: This mill is the most imposing structure on Main Street. Still operative, the mill more than any other building symbolizes the role of Minneapolis as a major U.S. Flour Milling Center from 1880-1... More
Pillsbury Milling Complex, Pillsbury "A" Mill, 116 Third Avenue/301 Ma...
Significance: This mill is the most imposing structure on Main Street. Still operative, the mill more than any other building symbolizes the role of Minneapolis as a major U.S. Flour Milling Center from 1880-1... More
Santa Ana River Hydroelectric System, Redlands, San Bernardino County,...
Picryl description: Public domain image of a hydroelectric dam, industrial facility, power generation, water cascade, free to use, no copyright restrictions.
Kalaupapa Water Supply System, Waikolu Valley to Kalaupapa Settlement,...
The address used in title block for the measured drawings incorrectly identifies the location as Maui County. The Kalaupapa Water Supply System is located in Kalawao County. Significance: From 1866, Hawaiians ... More
Kalaupapa Water Supply System, Waikolu Valley to Kalaupapa Settlement,...
The address used in title block for the measured drawings incorrectly identifies the location as Maui County. The Kalaupapa Water Supply System is located in Kalawao County. Significance: From 1866, Hawaiians ... More
Kalaupapa Water Supply System, Waikolu Valley to Kalaupapa Settlement,...
The address used in title block for the measured drawings incorrectly identifies the location as Maui County. The Kalaupapa Water Supply System is located in Kalawao County. Significance: From 1866, Hawaiians ... More
Kalaupapa Water Supply System, Waikolu Valley to Kalaupapa Settlement,...
The address used in title block for the measured drawings incorrectly identifies the location as Maui County. The Kalaupapa Water Supply System is located in Kalawao County. Significance: From 1866, Hawaiians ... 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
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
Yosemite Hydroelectric Power Plant, Highways 120 & 140, Yosemite Villa...
Picryl description: Public domain image of an industrial equipment, workshop, assembly line, factory, power engine, 19th-20th century, free to use, no copyright restrictions.
Yosemite Hydroelectric Power Plant, Highways 120 & 140, Yosemite Villa...
Picryl description: Public domain image of a bridge, railroad structure, train viaduct, free to use, no copyright restrictions.
Yosemite Hydroelectric Power Plant, Highways 120 & 140, Yosemite Villa...
Picryl description: Public domain image of an industrial equipment, workshop, assembly line, factory, power engine, 19th-20th century, free to use, no copyright restrictions.
Three Bears Lake & Dams, Water Control Box, North of Marias Pass, East...
Survey number: HAER MT-88-C Building/structure dates: 1902 Initial Construction
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
Childs-Irving Hydroelectric Project, Childs System, Flume Intake & For...
Survey number: HAER AZ-65-I Building/structure dates: 1908 Initial Construction Building/structure dates: 1916 Subsequent Work
Pillsbury Milling Complex, Pillsbury "A" Mill, 116 Third Avenue/301 Ma...
Significance: This mill is the most imposing structure on Main Street. Still operative, the mill more than any other building symbolizes the role of Minneapolis as a major U.S. Flour Milling Center from 1880-1... More
Pillsbury Milling Complex, Pillsbury "A" Mill, 116 Third Avenue/301 Ma...
Significance: This mill is the most imposing structure on Main Street. Still operative, the mill more than any other building symbolizes the role of Minneapolis as a major U.S. Flour Milling Center from 1880-1... More
Santa Ana River Hydroelectric System, Redlands, San Bernardino County,...
Picryl description: Public domain image of a quarry, excavation or mining site, free to use, no copyright restrictions.
Santa Ana River Hydroelectric System, Redlands, San Bernardino County,...
Picryl description: Public domain image of a hydroelectric dam, industrial facility, power generation, water cascade, free to use, no copyright restrictions.
Santa Ana River Hydroelectric System, Redlands, San Bernardino County,...
Picryl description: Public domain vintage artistic photograph, free to use, no copyright restrictions image.
Santa Ana River Hydroelectric System, Redlands, San Bernardino County,...
Picryl description: Public domain image of a hydroelectric dam, industrial facility, power generation, water cascade, free to use, no copyright restrictions.
Santa Ana River Hydroelectric System, Redlands, San Bernardino County,...
Picryl description: Public domain image of a hydroelectric dam, industrial facility, power generation, water cascade, free to use, no copyright restrictions.
Santa Ana River Hydroelectric System, Redlands, San Bernardino County,...
Picryl description: Public domain image of a hydroelectric dam, industrial facility, power generation, water cascade, free to use, no copyright restrictions.
Kalaupapa Water Supply System, Waikolu Valley to Kalaupapa Settlement,...
The address used in title block for the measured drawings incorrectly identifies the location as Maui County. The Kalaupapa Water Supply System is located in Kalawao County. Significance: From 1866, Hawaiians ... More
Kalaupapa Water Supply System, Waikolu Valley to Kalaupapa Settlement,...
The address used in title block for the measured drawings incorrectly identifies the location as Maui County. The Kalaupapa Water Supply System is located in Kalawao County. Significance: From 1866, Hawaiians ... More
Kalaupapa Water Supply System, Waikolu Valley to Kalaupapa Settlement,...
The address used in title block for the measured drawings incorrectly identifies the location as Maui County. The Kalaupapa Water Supply System is located in Kalawao County. Significance: From 1866, Hawaiians ... More
Kalaupapa Water Supply System, Waikolu Valley to Kalaupapa Settlement,...
The address used in title block for the measured drawings incorrectly identifies the location as Maui County. The Kalaupapa Water Supply System is located in Kalawao County. Significance: From 1866, Hawaiians ... More
Childs-Irving Hydroelectric Project, Childs System, Pressure Tunnel In...
Picryl description: Public domain image of a hydroelectric dam, industrial facility, power generation, water cascade, free to use, no copyright restrictions.
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
Shoshone Falls Hydroelectric Project, Intake, North Bank of Snake Riv...
Significance: The intake represents an original component of the 1921 expansion of the Shoshone Falls Hydroelectric Project and the point at which water is channeled into the tunnel and penstock system, which d... More
Yosemite Hydroelectric Power Plant, Highways 120 & 140, Yosemite Villa...
Picryl description: Public domain image of an industrial equipment, workshop, assembly line, factory, power engine, 19th-20th century, free to use, no copyright restrictions.
Yosemite Hydroelectric Power Plant, Highways 120 & 140, Yosemite Villa...
Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.
Yosemite Hydroelectric Power Plant, Highways 120 & 140, Yosemite Villa...
Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.