TENNESSEE - 1940s - Cars drive by the Chickamauga Dam in Tennessee.
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INDIA - 1960s - People climb stairs or ride in crane-lifted boxes up the construction site of the Nagarjuna Sagar Dam on the Krishna River.
Aerial view of the dam's concrete and metal structure against the dark water and vibrant green grass, King's Lynn, England, United Kingdom.
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1913 - A group of stairs are lowered from a bridge into the Panama Canal at the same time.
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NORTH CAROLINA - 1938 - A wooden building with a ramp leading up to a secondary door. Cars parked in front of a wooden house.
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NORTH CAROLINA - 1938 - A surveyor uses his theodolite tripod at the Hiwassee Dam construction site. Construction workers walking on site.
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NORTH CAROLINA - 1938 - A man wearing headphones watches a heavy equipment being hoisted by a crane in the mountains.
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TENNESSEE - 1942 - A mechanical shovel is used to move giant rocks at the Douglas Dam construction site.
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NORTH CAROLINA - 1938 - Workers move to the side of the cliff as a locomotive moves along the tracks. A concrete mixer is being moved by a cable line.
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ONTARIO - 1945 - Men from Canada's Department of Indian Affairs set traps for beavers on an Ontario preserve in order to relocate them.
Aerial view of the water reflecting light near the dam's grey concrete and green metal structure in King's Lynn, England, United Kingdom.
Aerial view of Krammersluizen, dams, and windfarm along the Volkerak River, Bruinisse, Zeeland, Netherlands.
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NORTH CAROLINA - 1938 - Hiwassee Dam construction workers carrying tool boxes and personal belongings as they walking on dirt road.
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TENNESSEE - 1942 - A tractor is used at the Douglas Dam construction site.
1945 - In this documentary directed by Frank Capra a montage shows inventions modernizing America along with the construction of dams, bridges and skyscrapers, set to Gershwin's Rhapsody in Blue.
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Stunning blue lakes and travertine dams of Band-e Amir National Park in Afghanistan
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Aerial view of Grojogan Watu Purbo waterfalls, Indonesia.
Aerial view of windturbines and dams in Zeeland, Netherlands.
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TENNESSEE - 1942 - A construction crane moves water at the Douglas Dam construction site.
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INDIA - 1960s - Men move rocks and women carry mud to the construction site of the Nagarjuna Sagar Dam on the Krishna River in India.
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NORTH CAROLINA - 1938 - A man leaves his house, followed by two boys. A woman is seen lounging in the enclosed deck of the house.
TENNESSEE - 1940s - Workers build a reservoir at the Watauga Dam construction site.
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1934 - US Army engineers are responsible for myriad landmark architecture in Washington DC and the Wilson Dam. They also provide relief after natural disasters and fight forest fires.
Aerial view of windfarm and river with dams and sluice, Bruinisse, Zeeland, Netherlands.
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NORTH CAROLINA - 1938 - Children walk and run along a dirt road near wooden houses. A man and a child cutting grass in front of their house.
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NORTH CAROLINA - 1938 - A crane hoists heavy machinery. The load moves across the Hiwassee River by a cable line.
Aerial view of sluice, dams, vessel, and windfarm in Bruinisse, Zeeland, Netherlands.
ALABAMA - 1938 - Huge equipment is shifted at the Guntersville Dam under a crane.
1963 - Landslides cause a dam in Italy to burst and flood a valley.
Aerial view of wind turbines, sluice, dams, water, and bridge in Bruinisse, Zeeland, Netherlands.
1966 - LBJ and Mexico's President Ordaz tour a new US-Mexican dam in Mexico.
TENNESSEE - 1940s - Explosives are loaded into a tunnel on the Watauga Dam construction site.
1919 - A lock in the Panama Canal is drained and an emergency dam is swung into place.
ALABAMA - 1938 - Close-up of Guntersville Dam infrastructure.
1937 - Men of the Civilian Conservation Corps build a dam in Alabama's Shiawassee State Park.
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1940s - Excellent aerial view of the Tennessee Valley Authority Kentucky Dam.
TENNESSEE - 1940s - Panorama of building exteriors on the Watauga Dam construction site and its power station.
TENNESSEE - 1940s - Panorama of the Watauga Dam construction site before and after blasting takes place.
1930s - A canal is opened for a ferry to pass through in Belgium.
1943 - A hydroelectric defense plant is constructed on the water in Canada.
TENNESSEE - 1940s - Blasting takes place at the Watauga Dam construction site, and a dump truck moves the resulting debris.
TENNESSEE - 1940s - Blasting begins for the Watauga Dam construction site.
1952 - The villagers of Tignes, France, a mountain town in the Alps, are upset with the government's decision to flood the town to make way for a power plant project.
1936 - In this animated film, Pudgy the Puppy helps a beaver build a dam by attaching a large leaf to his tail to move mud, then gets distracted playing leapfrog with a frog.
ALABAMA - 1938 - Boats approach the Guntersville Dam on choppy water.
1946 - Thousands of sheep cross the Grand Coulee Dam in Washington.
TENNESSEE - 1940s - Panorama of dump trucks moving rocks and other debris at the Watauga Dam construction site.
SAN FRANCISCO - 1952 - An elementary school teacher asks her students to define the word "contributions" as it relates to government funding for a new dam, and asks a student to read the sum.