Deerfield Dam

Deerfield Dam is a dam impounding Castle Creek in the Black Hills of South Dakota. The dam creates Deerfield Reservoir.

The earthen dam was originally built by the United States Bureau of Reclamation in 1942-1947, with a height of 171 feet, to store irrigation water for the surrounding Pennington County. Construction was started in July 1942 by the Farm Security Administration, and later continued by the Civilian Conservation Corps under the Works Projects Administration during World War II. Employment of conscientious objectors under the Civilian Public Service here drew complaints from locals.

The reservoir has a capacity of 15,700 acre-feet and covers 414 acres of surface. Along with providing irrigation and recreation such as ice fishing and ice skating, the reservoir also supplements the municipal water supply of Rapid City, South Dakota and for the nearby Ellsworth Air Force Base.

References

Coordinates: 44°01′46″N 103°47′05″W / 44.02948°N 103.78483°W / 44.02948; -103.78483

Deerfield

Deerfield is the name of many places in the United States.

There are also similar places:

Other

Deerfield, Massachusetts

Deerfield is a town in Franklin County, Massachusetts, United States. The population was 5,125 as of the 2010 census. Deerfield is part of the Springfield, Massachusetts Metropolitan Statistical Area in western Massachusetts, lying 30 miles (48 km) north of the city of Springfield.

Deerfield includes the villages of South Deerfield and Old Deerfield which is home to two museums; Pocumtuck Valley Memorial Association and Historic Deerfield, Inc. Historic Deerfield, Inc. is a museum with a focus on decorative arts, early American material culture, and history. Its house museums offer interpretation of society, history, and culture from the colonial era through the late nineteenth century. Pocumtuck Valley Memorial Association has Memorial Hall Museum which opened in 1880, as well as the Indian House Memorial Children's Museum and Bloody Brook Tavern. The district has been designated a National Historic Landmark and is a center of heritage tourism in the Pioneer Valley near the Connecticut River.

Deerfield, Wisconsin (disambiguation)

Deerfield may refer to the following places in Wisconsin:

Reservoir

A reservoir (etymology: from French réservoir a "storehouse" ) is an enlarged natural or artificial lake, storage pond or impoundment created using a dam or lock to store water. Reservoirs can be created by controlling a stream that drains an existing body of water. They can also be constructed in river valleys using a dam. Alternately, a reservoir can be built by excavating flat ground and/or constructing retaining walls and levees.

Tank reservoirs store liquids or gases in storage tanks that may be elevated, at grade level, or buried. Tank reservoirs for water are also called cisterns.

Underground reservoirs store almost exclusively water and petroleum below ground.

Types

Reservoirs dammed in valleys

A dam constructed in a valley relies on the natural topography to provide most of the basin of the reservoir. Dams are typically located at a narrow part of a valley downstream of a natural basin. The valley sides act as natural walls, with the dam located at the narrowest practical point to provide strength and the lowest cost of construction. In many reservoir construction projects, people have to be moved and re-housed, historical artifacts moved or rare environments relocated. Examples are the temples of Abu Simbel (which were moved before the construction of the Aswan Dam to create Lake Nasser from the Nile in Egypt), the relocation of the village of Capel Celyn during the construction of Llyn Celyn, and the relocation of Borgo San Pietro of Petrella Salto during the construction of Lake Salto.

Reservoir (EP)

Reservoir is a four song CD EP by Irish singer/songwriter Fionn Regan. It was released 20 January 2003 on Anvil Records.

Track listing

References

Petroleum reservoir

A petroleum reservoir or oil and gas reservoir is a subsurface pool of hydrocarbons contained in porous or fractured rock formations. The naturally occurring hydrocarbons, such as crude oil or natural gas, are trapped by overlying rock formations with lower permeability. Reservoirs are found using hydrocarbon exploration methods.

Formation

Crude oil found in all oil reservoirs formed in the Earth's crust from the remains of once-living things. Crude oil is properly known as petroleum, and is used as fossil fuel. Evidence indicates that millions of years of heat and pressure changed the remains of microscopic plant and animal into oil and natural gas.

Roy Nurmi, an interpretation adviser for Schlumberger, described the process as follows: "Plankton and algae, proteins and the life that's floating in the sea, as it dies, falls to the bottom, and these organisms are going to be the source of our oil and gas. When they're buried with the accumulating sediment and reach an adequate temperature, something above 50 to 70 °C they start to cook. This transformation, this change, changes them into the liquid hydrocarbons that move and migrate, will become our oil and gas reservoir."