Conemaugh Dam | |
---|---|
Country | United States |
Location | Indiana/Westmoreland County, Pennsylvania |
Coordinates | 40°28′05.04″N79°21′58.44″W / 40.4680667°N 79.3662333°W Coordinates: 40°28′05.04″N79°21′58.44″W / 40.4680667°N 79.3662333°W |
Purpose | Flood control, power |
Status | Operational |
Opening date | 1952 |
Owner(s) | U.S. Army Corps of Engineers |
Dam and spillways | |
Type of dam | Concrete gravity |
Impounds | Conemaugh River |
Height | 144 ft (44 m) [1] |
Length | 1,266 ft (386 m) [1] |
Reservoir | |
Creates | Conemaugh River Lake |
Total capacity | 355,000 acre⋅ft (0.438 km3) [1] |
Catchment area | 1,351 sq mi (3,500 km2) [1] |
Conemaugh Hydroelectric Station | |
Coordinates | 40°27′49.85″N79°21′57.38″W / 40.4638472°N 79.3659389°W |
Commission date | 1989 |
Turbines | 2 x 7 MW Kaplan-type |
Installed capacity | 14 MW |
Conemaugh Dam (also known as Conemaugh River Dam or Conemaugh River Lake Dam) is a concrete gravity dam across the Conemaugh River, near the town of Saltsburg, in Pennsylvania. The dam was authorized by the Flood Control Act of 1936 and completed in 1952 by the U.S. Army Corps of Engineers for flood protection on the Conemaugh, Kiskiminetas, and Allegheny Rivers. The dam is one of 16 flood control structures in the Corps' Pittsburgh District. [2]
With a capacity of 355,000 acre-feet (438,000 dam3), the lake is usually kept at a much lower level of 5,140 acre-feet (6,340 dam3), to accommodate flash floods. [1] Water is released as quickly as possible while not exacerbating flooding conditions downstream. The dam has prevented a total of $2.2 billion of flooding-related damages between 1952 and 2013, including $375 million during 2004's Hurricane Ivan alone. [2] The dam also supplies water to a 14 MW hydroelectric power station which was commissioned in 1989. [3]
Conemaugh Lake National Recreation Area is located adjacent to the dam and preserves several historic sites, including segments of the Main Line Canal that once connected Pittsburgh to Philadelphia. [4] [5]
Lake Strom Thurmond, officially designated J. Strom Thurmond Reservoir at the federal level, and Clarks Hill Lake by the state of Georgia, is a reservoir at the border between Georgia and South Carolina in the Savannah River Basin.
Johnstown Flood National Memorial commemorates the more than 2,200 people who died and the thousands injured in the Johnstown Flood on May 31, 1889. The flood was caused by a break in the South Fork Dam, an earthen structure known to be structurally lacking. The memorial is located at 733 Lake Road near South Fork, Pennsylvania, about 10 miles (16 km) northeast of Johnstown, Pennsylvania. The memorial preserves the remains of the dam and portions of the former Lake Conemaugh bed, along with the farm of Elias Unger and the clubhouse of the South Fork Fishing and Hunting Club which owned the dam and reservoir. Hiking trails connect various parts of the memorial, and picnicking areas are present throughout. The United States Congress authorized the national memorial on August 31, 1964.
Hugh Keenleyside Dam is a flood control dam spanning the Columbia River, 12 km upstream of the city of Castlegar, British Columbia, Canada.
The Salt River Project (SRP) is the umbrella name for two separate entities: the Salt River Project Agricultural Improvement and Power District, an agency of the state of Arizona that serves as an electrical utility for the Phoenix metropolitan area, and the Salt River Valley Water Users' Association, a utility cooperative that serves as the primary water provider for much of central Arizona. It is one of the primary public utility companies in Arizona.
Jennings Randolph Lake is a reservoir of 952 acres (3.85 km2) located on the North Branch Potomac River in Garrett County, Maryland and Mineral County, West Virginia. It is approximately eight miles upstream of Bloomington, Maryland, and approximately five miles north of Elk Garden, West Virginia.
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.
Raystown Lake is a reservoir in Huntingdon County, Pennsylvania. It is the largest lake that is entirely within Pennsylvania. The original lake was built by the Simpson family of Huntingdon as a hydroelectric project. The current 8,300-acre (34 km2) Raystown Lake was completed in 1973 by the Army Corps of Engineers. Raystown is around 200 feet (61 m) deep in the deepest area near the dam. The lake was created primarily to control floods, provide electricity, and support recreational activities. Allegheny Electric Cooperative operates the Raystown Hydroelectric Project and William F. Matson Generating Station at the Raystown Dam, a 21 MW, two-unit hydroelectric project.
Gavins Point Dam is a 1.9 mi (3 km) long embankment rolled-earth and chalk-fill dam which spans the Missouri River and impounds Lewis and Clark Lake. The dam joins Cedar County, Nebraska with Yankton County, South Dakota a distance of 811.1 river miles (1,305 km) upstream of St. Louis, Missouri, where the river joins the Mississippi River. The dam and hydroelectric power plant were constructed as the Gavins Point Project from 1952 to 1957 by the United States Army Corps of Engineers as part of the Pick-Sloan Plan. The dam is located approximately 4 miles (6.4 km) west or upstream of Yankton, South Dakota.
Cordell Hull Lake is a lake in the Cumberland River in north-central Tennessee, about forty miles east of Nashville, in the vicinity of Carthage. It covers approximately 12,000 acres (49 km2).
The Cochiti Dam is an earthen fill dam located on the Rio Grande in Sandoval County, New Mexico, approximately 50 miles (80 km) north of Albuquerque, New Mexico, in the United States. By volume of material, it is the 23rd largest dam in the world at 62,849,000 yd3 of material, one of the ten largest such dams in the United States, and the eleventh largest such dam in the world. Cochiti Dam is one of the four United States Army Corps of Engineers projects for flood and sediment control on the Rio Grande system, operating in conjunction with Abiquiu Dam, Galisteo Dam and Jemez Canyon Dam.
The Youghiogheny River Lake is a flood control reservoir in southwestern Pennsylvania and western Maryland. The lake is a significant tourist attraction, bringing over one million visitors a year to the area.
Shenango River Lake is a reservoir in the Shenango River Valley of western Pennsylvania and northeastern Ohio. Authorized by the Flood Control Acts of 1938, the lake is one of 16 flood control projects in the Pittsburgh District designed to prevent flooding. It is a popular site among anglers and is lined by 330 campsites.
Amistad Dam is a major embankment dam across the Rio Grande between Texas, United States, and Coahuila, Mexico. Built to provide irrigation water storage, flood control, and hydropower generation, it is the largest dam along the international boundary reach of the Rio Grande. The dam is over 6 miles (9.7 km) long, lies mostly on the Mexican side of the border, and forms Amistad Reservoir. It supplies water for irrigation in the Rio Grande Valley, 574 miles (924 km) upstream of the Rio Grande's mouth on the Gulf of Mexico at Brownsville, Texas/Matamoros, Tamaulipas.
Cold Brook Dam is an earthen dam located near Hot Springs, South Dakota in Fall River County in the southwestern part of the state, in the southern Black Hills.
Cottonwood Springs Dam is a dam in Fall River County, South Dakota in the southwestern part of the state, south of the Black Hills.
Ball Mountain Dam is a dam in Jamaica, Windham County, Vermont, in the southeastern part of the state.
Abiquiu Dam is a dam on the Rio Chama, located about 60 miles (97 km) northwest of Santa Fe in Rio Arriba County, New Mexico. Built and operated by the U.S. Army Corps of Engineers (USACE), the dam is an earth embankment structure 354 feet (108 m) high and 1,800 feet (550 m) long, containing 11.8 million cubic yards of fill. The dam forms Abiquiu Lake, one of the largest lakes in New Mexico with a full storage capacity of 1,369,000 acre-feet (1,689,000 dam3) and 5,200 acres (2,100 ha) of water. To date, the reservoir has never filled to capacity, with a record high of 402,258 acre-feet (496,178 dam3), 29.4% of full pool, on June 22, 1987. The dam's primary purpose is flood control, in addition to irrigation and municipal water storage, and hydroelectric generation.
Townshend Dam is a dam in Townshend, Windham County, Vermont.
Brookville Lake Dam is a dam in Brookville Township, Franklin County, Indiana, just north of Brookville, in the southeastern part of the state.
Mahoning Creek Dam is a dam in Armstrong County, Pennsylvania.
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