These are U.S. towns and villages flooded by the creation of dams, destroyed by the advancing sea, or washed away in floods and never rebuilt.
The Johnstown Flood, sometimes referred to locally as Great Flood of 1889, occurred on Friday, May 31, 1889, after the catastrophic failure of the South Fork Dam, located on the south fork of the Little Conemaugh River, 14 miles (23 km) upstream of the town of Johnstown, Pennsylvania, United States. The dam ruptured after several days of extremely heavy rainfall, releasing 14.55 million cubic meters of water. With a volumetric flow rate that temporarily equaled the average flow rate of the Mississippi River, the flood killed 2,208 people and accounted for US$17,000,000 in damage.
The Johnstown Flood National Memorial is a unit of the United States National Park Service. Established in 1964 through legislation signed by President Lyndon B. Johnson, it pays tribute to the thousands of victims of the Johnstown Flood, who were injured or killed on May 31, 1889 when the South Fork Dam ruptured.
The Quabbin Reservoir is the largest inland body of water in Massachusetts, and was built between 1930 and 1939. Along with the Wachusett Reservoir, it is the primary water supply for Boston, 65 miles (105 km) to the east, and 40 other cities and towns in Greater Boston. The Quabbin also supplies water to three towns west of the reservoir and acts as backup supply for three others. By 1989, it supplied water for 2.5 million people, about 40% of the state's population at the time. It has an aggregate capacity of 412 billion US gallons (1,560 GL) and an area of 38.6 square miles (99.9 km2).
Shasta Dam is a concrete arch-gravity dam across the Sacramento River in Northern California in the United States. At 602 feet (183 m) high, it is the eighth-tallest dam in the United States. Located at the north end of the Sacramento Valley, Shasta Dam creates Shasta Lake for long-term water storage, flood control, hydroelectricity and protection against the intrusion of saline water. The largest reservoir in the state, Shasta Lake can hold about 4,500,000 acre-feet (5,600 GL).
Shasta Lake, also popularly known as Lake Shasta, is a reservoir in Shasta County, California, United States. It began to store water in 1944 due to the impounding of the Sacramento River by Shasta Dam, the ninth tallest dam in the United States.
The South Fork Dam was an earthenwork dam forming Lake Conemaugh, an artificial body of water near South Fork, Pennsylvania, United States. On May 31, 1889, the South Fork Dam failed catastrophically and 20 million tons of water from Lake Conemaugh burst through and raced 14 miles (23 km) downstream, causing the Johnstown Flood.
Livermore, Pennsylvania is an abandoned town that was located on the Conemaugh River between Blairsville and Saltsburg in Derry Township, Westmoreland County, Pennsylvania. The town was abandoned and partially razed in the early 1950s following authorization by the Flood Control Act of 1936 and Flood Control Act of 1938 for construction of the Conemaugh Dam and Lake to prevent flooding of Pittsburgh. Much of the former town site now lies under the reservoir and floodplains.
Trinity Dam is an earthfill dam on the Trinity River located about 7 miles (11 km) northeast of Weaverville, California in the United States. The dam was completed in the early 1960s as part of the federal Central Valley Project to provide irrigation water to the arid San Joaquin Valley.
The Ashokan Reservoir is a reservoir in Ulster County, New York. It is at the eastern end of the Catskill Park, and is one of several in the region created to provide the City of New York with water. It is the city's deepest reservoir at 190 feet (58 m) near the dam at the former site of Bishop Falls.
The Kinzua Dam, on the Allegheny River in Warren County, Pennsylvania, is one of the largest dams in the United States east of the Mississippi River. It is located within the Allegheny National Forest.
Arkabutla Lake is a reservoir on the Coldwater River in the U.S. state of Mississippi. It was created following the construction of the Arkabutla Dam in 1940 on the Coldwater River.
Brown's Station was a hamlet in the Esopus Valley of southeastern Ulster County, New York, United States. It was submerged by the waters of the Ashokan Reservoir, an artificial lake built between 1906 and 1915 to supply fresh water to New York City.
The Schoharie Reservoir is a reservoir in the Catskill Mountains of New York State that was created to be one of 19 reservoirs that supplies New York City with water. It was created by impounding Schoharie Creek. Portions of it lie in the towns of Conesville and Gilboa in Schoharie County, Roxbury in Delaware County, and Prattsville in Greene County.
Mossyrock Dam is a concrete arch-gravity dam on the Cowlitz River near Mossyrock in Lewis County, Washington, United States. The reservoir created by the dam is called Riffe Lake. The primary purpose of the dam is hydroelectric production while flood control is a secondary function. The dam is the tallest in Washington state and its hydroelectric power station supplies 40% of Tacoma Power's electricity.
Riffe Lake is a long reservoir on the Cowlitz River in the U.S. state of Washington. The 23.5 mi (38 km) lake was created by the construction of Mossyrock Dam, the tallest dam in the state, in 1968 by Tacoma City Light.
Camanche Reservoir is an artificial lake in the San Joaquin Valley in California in the United States, at the juncture of Amador, Calaveras, and San Joaquin counties. Its waters are impounded by Camanche Dam, which was completed in 1963. Camanche Reservoir is a source of water for industrial and municipal purposes and also provides flood control.
Alamo Crossing is a ghost town in Mohave County, Arizona, United States. The town was settled in the late 1890s, in what was then the Arizona Territory. It served as a camp for mining prospectors in the manganese-rich Artillery Mountains, being the only town in the area. After 1918, the post office permanently closed, but the town was only intermittently abandoned, with its founders often present through until at least the mid-1950s. The town was intentionally flooded in 1968 to create Alamo Lake. In 2020, the area of Alamo was revived for mining again, this time for surface-level gold prospecting.
Potosí was a Venezuelan town in the western state of Táchira. The town was deliberately flooded by the Venezuelan government in 1985 to build a hydroelectric dam. In 2010, the town was uncovered for the first time since its flooding due to a drought caused by the weather phenomenon El Niño.
Camanche Dam is an earthfill Dam on the Mokelumne River in the central California, about 20 mi (32 km) from East Lodi. The dam and reservoir lie in the Sierra Nevada foothills in San Joaquin County. Construction of Camanche Dam was started in 1963 and completed in 1964. East Bay Municipal Utilities District (EBMUD) owns and operates it. The purpose of Camanche Dam and reservoir is to provide flood control, water flows for agriculture, habitat for fisheries and recreation for community.
accesses are at the Aitch Boat Launch...