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Boarding str. Mt. Washington at Weirs, Lake Winnipesaukee, N.H.

Boarding str. Mt. Washington at Weirs, Lake Winnipesaukee, N.H.

Public domain photograph of a crowd, event, meeting, demonstration, free to use, no copyright restrictions image - Picryl description

J. Clark Salyer National Wildlife Refuge, Dam 320, Along Lower Souris River, Kramer, Bottineau County, ND

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.

Old Croton Aqueduct, Mill River Waste Weir, U.S. Route 9 at Sleepy Hollow Cemetery, Tarrytown, Westchester County, NY

Old Croton Aqueduct, Mill River Waste Weir, U.S. Route 9 at Sleepy Hol...

Significance: The Old Croton Aqueduct is an outstanding example of 19th century civil engineering and was New York City's first municipal water project. The waste weir formed an integral part of the aqueduct s... More

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mile point 18.6, along State Route 65, Ambridge, Beaver County, PA

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mi...

Significance: Ohio Slack Water Dams, Lock and Dam No. 4, HAER No. PA-227-A was part of the fifty-two slackwater locks and dams constructed by the U.S. Army Corps of Engineers on the Ohio River, between 1877-191... More

Encampment Headquarters, Weirs, Lake Winnipesaukee, N. H.

Encampment Headquarters, Weirs, Lake Winnipesaukee, N. H.

Picryl description: Public domain photo of vintage New Hampshire postcard, free to use, no copyright restrictions image.

Appleton Locks & Dams, Fox River at Oneida Street, Appleton, Outagamie County, WI

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

Kaukauna Lock & Dam, Fox River at Canal Street, Kaukauna, Outagamie County, WI

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 County, WI

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 County, WI

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

Merced Irrigation District, Edendale Creek Turnout & Weir, East of Snelling Highway, Hopeton, Merced County, CA

Merced Irrigation District, Edendale Creek Turnout & Weir, East of Sne...

Significance: The Edendale Creek turnout and weir are locally important as original features of the Merced Irrigation District's Main Canal. The canal played a vital role in the economic and social development... More

Upper Souris National Wildlife Refuge, Dam 96, Souris River Basin, Foxholm, Ward County, ND

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

Haddam Neck Nuclear Power Plant, Discharge Canal, 362 Injun Hollow Road, Haddam, Middlesex County, CT

Haddam Neck Nuclear Power Plant, Discharge Canal, 362 Injun Hollow Roa...

Public domain photograph - historical image of Connecticut, United States, free to use, no copyright restrictions image - Picryl description

Old Croton Aqueduct, Northern Waste Weir, Snowden Avenue & Van Wick Street, Ossining, Westchester County, NY

Old Croton Aqueduct, Northern Waste Weir, Snowden Avenue & Van Wick St...

Significance: The Old Croton Aqueduct is an outstanding example of 19th century civil engineering and was New York City's first municipal water project. The waste weir formed an integral part of the aqueduct s... More

Kalaupapa Water Supply System, Waikolu Valley to Kalaupapa Settlement, Island of Molokai, Kalaupapa, Kalawao County, HI

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

Boise Project, Boise River Diversion Dam, Across Boise River, Boise, Ada County, ID

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, Ada County, ID

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, Ada County, ID

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, Ada County, ID

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

[Shore path at Weirs, Lake Winnipesaukee, N.H.]

[Shore path at Weirs, Lake Winnipesaukee, N.H.]

Public domain photograph - historical image of New Hampshire, United States, free to use, no copyright restrictions image - Picryl description

Str. Governor Endicott landing at Weirs, Lake Winnipesaukee, N.H.

Str. Governor Endicott landing at Weirs, Lake Winnipesaukee, N.H.

Public domain image of a historic view of Boston Harbor, Massachusetts, free to use, no copyright restrictions - Picryl description

The New Hotel Weirs, Lake Winnipesaukee, N.H.

The New Hotel Weirs, Lake Winnipesaukee, N.H.

Picryl description: Public domain image of a power station, dam, electric generator, industrial building, free to use, no copyright restrictions.

Shore path at Weirs, Lake Winnipesaukee, N.H.

Shore path at Weirs, Lake Winnipesaukee, N.H.

Public domain photograph - historical image of New Hampshire, United States, free to use, no copyright restrictions image - Picryl description

Trap fishing boats. These boats are diesel-powered and are used in the early morning to collect the fish in the line of "traps" or "weirs" which are stretched along the coast. Provincetown, Massachusetts

Trap fishing boats. These boats are diesel-powered and are used in the...

Public domain scan of print depicting a sailboat or small ship, seascape, free to use, no copyright restrictions image - Picryl description

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mile point 18.6, along State Route 65, Ambridge, Beaver County, PA

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mi...

Significance: Ohio Slack Water Dams, Lock and Dam No. 4, HAER No. PA-227-A was part of the fifty-two slackwater locks and dams constructed by the U.S. Army Corps of Engineers on the Ohio River, between 1877-191... More

From Endicott Rock, Weirs, Lake Winnipesaukee, N. H.

From Endicott Rock, Weirs, Lake Winnipesaukee, N. H.

Picryl description: Public domain photo of vintage New Hampshire postcard, free to use, no copyright restrictions image.

Davidson Ditch Waste Water Weir, Mile 63 of Alaska's Steese Highway, Chatanika, Fairbanks North Star Borough, AK

Davidson Ditch Waste Water Weir, Mile 63 of Alaska's Steese Highway, C...

Significance: The Davidson Ditch was among the State's earliest long distance aqueducts and it played an important role in the development of Alaska's gold-mining industry. J.B. Lippincott, consulting engineer... More

Appleton Locks & Dams, Fox River at Oneida Street, Appleton, Outagamie County, WI

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

Little Chute Lock & Dam, Fox River at Mill Street, Little Chute, Outagamie County, WI

Little Chute Lock & Dam, Fox River at Mill Street, Little Chute, Outag...

Significance: The Little Chute Locks and Dam Complex allowed passage for water craft in an otherwise unnavigable stretch of the Fox River at Little Chute created by a 36 foot drop in elevation in a little under... More

Kaukauna Lock & Dam, Fox River at Canal Street, Kaukauna, Outagamie County, WI

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 County, WI

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

Wellton-Mohawk Irrigation System, Wasteway No. 1, Wellton-Mohawk Canal, North side of Wellton-Mohawk Canal, bounded by Gila River to North & the Union Pacific Railroad & Gila Mountains to south, Wellton, Yuma County, AZ

Wellton-Mohawk Irrigation System, Wasteway No. 1, Wellton-Mohawk Canal...

Significance: With the completion of the irrigation system, Colorado River water was delivered to previously arid lands in the lower Gila River Valley. A wastewater allows for the rapid discharge of water from ... More

Kalaupapa Water Supply System, Waikolu Valley to Kalaupapa Settlement, Island of Molokai, Kalaupapa, Kalawao County, HI

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, Island of Molokai, Kalaupapa, Kalawao County, HI

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, Island of Molokai, Kalaupapa, Kalawao County, HI

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, Island of Molokai, Kalaupapa, Kalawao County, HI

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, Island of Molokai, Kalaupapa, Kalawao County, HI

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

Boise Project, Boise River Diversion Dam, Across Boise River, Boise, Ada County, ID

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, Ada County, ID

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, Ada County, ID

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

Str. Mt. Washington landing at Weirs, N.H.

Str. Mt. Washington landing at Weirs, N.H.

Public domain image of a sailing ship, caravel, harbor, sea, naval battle, 16th-17th century maritime seascape, free to use, no copyright restrictions - Picryl description

Lake Winnipesaukee, N.H - Public domain image. Dry plate negative.

Lake Winnipesaukee, N.H - Public domain image. Dry plate negative.

"Weirs" on pier landing; at New Hotel Weirs. "4390" on negative. Detroit Publishing Co. no. 070485. Gift; State Historical Society of Colorado; 1949.

Cavalry grazing horses during World War I

Cavalry grazing horses during World War I

There is a paddock enclosed by a short, crude fence in the middle of the photograph. This butts up against a narrow river which has a fast flowing weir further up its banks. There are five soldiers sitting, rel... More

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mile point 18.6, along State Route 65, Ambridge, Beaver County, PA

Ohio Slack Water Dams, Lock & Dam No. 4, East bank of Ohio River at mi...

Significance: Ohio Slack Water Dams, Lock and Dam No. 4, HAER No. PA-227-A was part of the fifty-two slackwater locks and dams constructed by the U.S. Army Corps of Engineers on the Ohio River, between 1877-191... More

Lake from New Hotel, Weirs, Lake Winnipesaukee, N. H.

Lake from New Hotel, Weirs, Lake Winnipesaukee, N. H.

Public domain photo of vintage New Hampshire postcard, 19th century, free to use, no copyright restrictions image - Picryl description.

Str. Mt. Washington leaving Wharf, Weirs, Lake Winnipesaukee, N. H.

Str. Mt. Washington leaving Wharf, Weirs, Lake Winnipesaukee, N. H.

Picryl description: Public domain photo of vintage New Hampshire postcard, free to use, no copyright restrictions image.

Appleton Locks & Dams, Fox River at Oneida Street, Appleton, Outagamie County, WI

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

Appleton Locks & Dams, Fox River at Oneida Street, Appleton, Outagamie County, WI

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

Little Chute Lock & Dam, Fox River at Mill Street, Little Chute, Outagamie County, WI

Little Chute Lock & Dam, Fox River at Mill Street, Little Chute, Outag...

Significance: The Little Chute Locks and Dam Complex allowed passage for water craft in an otherwise unnavigable stretch of the Fox River at Little Chute created by a 36 foot drop in elevation in a little under... More

Kaukauna Lock & Dam, Fox River at Canal Street, Kaukauna, Outagamie County, WI

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

Merced Irrigation District, Edendale Creek Turnout & Weir, East of Snelling Highway, Hopeton, Merced County, CA

Merced Irrigation District, Edendale Creek Turnout & Weir, East of Sne...

Significance: The Edendale Creek turnout and weir are locally important as original features of the Merced Irrigation District's Main Canal. The canal played a vital role in the economic and social development... More

Kalaupapa Water Supply System, Waikolu Valley to Kalaupapa Settlement, Island of Molokai, Kalaupapa, Kalawao County, HI

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, Island of Molokai, Kalaupapa, Kalawao County, HI

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, Island of Molokai, Kalaupapa, Kalawao County, HI

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, Island of Molokai, Kalaupapa, Kalawao County, HI

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

Boise Project, Boise River Diversion Dam, Across Boise River, Boise, Ada County, ID

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, Ada County, ID

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, Ada County, ID

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, Ada County, ID

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, Ada County, ID

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

Cora Weir (1892-1986) and Gippy, Weir Farm National Historic Site, 2016.

Cora Weir (1892-1986) and Gippy, Weir Farm National Historic Site, 201...

Public domain photograph by National Parks Administration, nature conservation, tourism, free to use, no copyright restrictions image - Picryl description

57. Torrumbarry Weir, Near Echuca, Vic. c.1948

57. Torrumbarry Weir, Near Echuca, Vic. c.1948

Postcard. The Rose Series P. 280. Public domain scan of the vintage Victoria Australia postcard, no copyright restrictions image - Picryl description

J. Clark Salyer National Wildlife Refuge, Dam 320, Along Lower Souris River, Kramer, Bottineau County, ND

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.

Outlet of Lake, Weirs, Lake Winnipesaukee, N. H.

Outlet of Lake, Weirs, Lake Winnipesaukee, N. H.

Picryl description: Public domain photo of vintage New Hampshire postcard, free to use, no copyright restrictions image.

Appleton Locks & Dams, Fox River at Oneida Street, Appleton, Outagamie County, WI

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

Appleton Locks & Dams, Fox River at Oneida Street, Appleton, Outagamie County, WI

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

Appleton Locks & Dams, Fox River at Oneida Street, Appleton, Outagamie County, WI

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

Little Chute Lock & Dam, Fox River at Mill Street, Little Chute, Outagamie County, WI

Little Chute Lock & Dam, Fox River at Mill Street, Little Chute, Outag...

Significance: The Little Chute Locks and Dam Complex allowed passage for water craft in an otherwise unnavigable stretch of the Fox River at Little Chute created by a 36 foot drop in elevation in a little under... More

Little Chute Lock & Dam, Fox River at Mill Street, Little Chute, Outagamie County, WI

Little Chute Lock & Dam, Fox River at Mill Street, Little Chute, Outag...

Significance: The Little Chute Locks and Dam Complex allowed passage for water craft in an otherwise unnavigable stretch of the Fox River at Little Chute created by a 36 foot drop in elevation in a little under... More

Little Chute Lock & Dam, Fox River at Mill Street, Little Chute, Outagamie County, WI

Little Chute Lock & Dam, Fox River at Mill Street, Little Chute, Outag...

Significance: The Little Chute Locks and Dam Complex allowed passage for water craft in an otherwise unnavigable stretch of the Fox River at Little Chute created by a 36 foot drop in elevation in a little under... More

Little Chute Lock & Dam, Fox River at Mill Street, Little Chute, Outagamie County, WI

Little Chute Lock & Dam, Fox River at Mill Street, Little Chute, Outag...

Significance: The Little Chute Locks and Dam Complex allowed passage for water craft in an otherwise unnavigable stretch of the Fox River at Little Chute created by a 36 foot drop in elevation in a little under... More

Kaukauna Lock & Dam, Fox River at Canal Street, Kaukauna, Outagamie County, WI

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

Kalaupapa Water Supply System, Waikolu Valley to Kalaupapa Settlement, Island of Molokai, Kalaupapa, Kalawao County, HI

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

Boise Project, Boise River Diversion Dam, Across Boise River, Boise, Ada County, ID

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, Ada County, ID

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, Ada County, ID

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, Ada County, ID

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, Ada County, ID

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

Weir family portrait pre-1900, Weir Farm National Historic Site, 2016.
J. Clark Salyer National Wildlife Refuge, Dam 320, Along Lower Souris River, Kramer, Bottineau County, ND

J. Clark Salyer National Wildlife Refuge, Dam 320, Along Lower Souris ...

Picryl description: Public domain photograph of farming, farmer, agriculture, 20th-century, free to use, no copyright restrictions.

Panorama from New Hotel Weirs, Lake Winnipesaukee, N.H.

Panorama from New Hotel Weirs, Lake Winnipesaukee, N.H.

Public domain photograph - panorama, United States, free to use, no copyright restrictions image - Picryl description

Old Croton Aqueduct, Mill River Waste Weir, U.S. Route 9 at Sleepy Hollow Cemetery, Tarrytown, Westchester County, NY

Old Croton Aqueduct, Mill River Waste Weir, U.S. Route 9 at Sleepy Hol...

Significance: The Old Croton Aqueduct is an outstanding example of 19th century civil engineering and was New York City's first municipal water project. The waste weir formed an integral part of the aqueduct s... More

N. H. Veterans Assn. Grounds, Weirs, Lake Winnipesaukee, N. H.

N. H. Veterans Assn. Grounds, Weirs, Lake Winnipesaukee, N. H.

Picryl description: Public domain photo of vintage New Hampshire postcard, free to use, no copyright restrictions image.

New Hotel Weirs, Lake Winnipesaukee, N.H.

New Hotel Weirs, Lake Winnipesaukee, N.H.

Picryl description: Public domain photo of vintage New Hampshire postcard, free to use, no copyright restrictions image.

Appleton Locks & Dams, Fox River at Oneida Street, Appleton, Outagamie County, WI

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

Appleton Locks & Dams, Fox River at Oneida Street, Appleton, Outagamie County, WI

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

Little Chute Lock & Dam, Fox River at Mill Street, Little Chute, Outagamie County, WI

Little Chute Lock & Dam, Fox River at Mill Street, Little Chute, Outag...

Significance: The Little Chute Locks and Dam Complex allowed passage for water craft in an otherwise unnavigable stretch of the Fox River at Little Chute created by a 36 foot drop in elevation in a little under... More

Little Chute Lock & Dam, Fox River at Mill Street, Little Chute, Outagamie County, WI

Little Chute Lock & Dam, Fox River at Mill Street, Little Chute, Outag...

Significance: The Little Chute Locks and Dam Complex allowed passage for water craft in an otherwise unnavigable stretch of the Fox River at Little Chute created by a 36 foot drop in elevation in a little under... More

Kaukauna Lock & Dam, Fox River at Canal Street, Kaukauna, Outagamie County, WI

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

Wellton-Mohawk Irrigation System, Wasteway No. 1, Wellton-Mohawk Canal, North side of Wellton-Mohawk Canal, bounded by Gila River to North & the Union Pacific Railroad & Gila Mountains to south, Wellton, Yuma County, AZ

Wellton-Mohawk Irrigation System, Wasteway No. 1, Wellton-Mohawk Canal...

Significance: With the completion of the irrigation system, Colorado River water was delivered to previously arid lands in the lower Gila River Valley. A wastewater allows for the rapid discharge of water from ... More

Chesapeake & Ohio Canal, Waste Weir, Lock 27, 41.5 miles above tidewater, Dickerson, Montgomery County, MD

Chesapeake & Ohio Canal, Waste Weir, Lock 27, 41.5 miles above tidewat...

Survey number: HABS MD-747 Public domain photograph of ruins in United States, 20th century, free to use, no copyright restrictions image - Picryl description

Upper Souris National Wildlife Refuge, Dam 96, Souris River Basin, Foxholm, Ward County, ND

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

Old Croton Aqueduct, Northern Waste Weir, Snowden Avenue & Van Wick Street, Ossining, Westchester County, NY

Old Croton Aqueduct, Northern Waste Weir, Snowden Avenue & Van Wick St...

Significance: The Old Croton Aqueduct is an outstanding example of 19th century civil engineering and was New York City's first municipal water project. The waste weir formed an integral part of the aqueduct s... More

Kalaupapa Water Supply System, Waikolu Valley to Kalaupapa Settlement, Island of Molokai, Kalaupapa, Kalawao County, HI

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, Island of Molokai, Kalaupapa, Kalawao County, HI

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, Island of Molokai, Kalaupapa, Kalawao County, HI

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, Island of Molokai, Kalaupapa, Kalawao County, HI

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, Island of Molokai, Kalaupapa, Kalawao County, HI

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, Island of Molokai, Kalaupapa, Kalawao County, HI

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, Island of Molokai, Kalaupapa, Kalawao County, HI

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, Island of Molokai, Kalaupapa, Kalawao County, HI

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

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