
Carters Dam is an earthen
embankment dam
An embankment dam is a large artificial dam. It is typically created by the placement and compaction of a complex semi-plastic mound of various compositions of soil or rock. It has a semi-pervious waterproof natural covering for its surface and ...
located south of
Chatsworth in
Murray County and west of
Ellijay in northwestern
Georgia
Georgia most commonly refers to:
* Georgia (country), a country in the Caucasus region of Eurasia
* Georgia (U.S. state), a state in the Southeast United States
Georgia may also refer to:
Places
Historical states and entities
* Related to t ...
, United States, that creates
Carters Lake.
Description
The dam is tall and is situated above the mouth of the
Coosawattee River
The Coosawattee River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map, accessed April 27, 2011 river located in northwestern Georgia, United States.
Description
The river is noted as begi ...
. The drainage area is
.
The dam took 15 years to build and was completed in . The area of the primary flood control pool is
. The top elevation of the dam is
. The top width of the dam is
. The dam is constructed of rock and earth and is the tallest earthen dam east of the
Mississippi River
The Mississippi River is the second-longest river and chief river of the second-largest drainage system in North America, second only to the Hudson Bay drainage system. From its traditional source of Lake Itasca in northern Minnesota, it ...
.
The dam has a diversion tunnel that is
. It is a horseshoe shape with a bottom width of
.
The lake is the deepest manmade reservoir east of the
Mississippi River
The Mississippi River is the second-longest river and chief river of the second-largest drainage system in North America, second only to the Hudson Bay drainage system. From its traditional source of Lake Itasca in northern Minnesota, it ...
and deepest lake in Georgia. The created lake is more than
deep and has
of shoreline without any private docks or other development.
Hydroelectric plant
Below the dam is a
retention and re-regulation lake (Reregulation Reservoir). The hydroelectric plant is of the
pumped storage
Pumping may refer to:
* The operation of a pump, for moving a liquid from one location to another
**The use of a breast pump for extraction of milk
* Pumping (audio), a creative misuse of dynamic range compression
* Pumping (computer systems), the ...
type. That is, during
off-peak hours
Peak demand on an electrical grid is simply the highest electrical power demand that has occurred over a specified time period (Gönen 2008). Peak demand is typically characterized as annual, daily or seasonal and has the unit of power.
Peak dem ...
the water from the retention lake is pumped back up to Carters Lake for use in generating power during the next time of
peak demand
Peak demand on an electrical grid is simply the highest electrical power demand that has occurred over a specified time period (Gönen 2008). Peak demand is typically characterized as annual, daily or seasonal and has the unit of power.
Peak dem ...
. The dam's power station contains 2 ×
Francis turbines and 2 × 160 MW Modified Francis pump turbines for used in pumped-storage.
Hydroelectric Plants in Florida & Georgia
/ref>
See also
* List of dams and reservoirs in Georgia (U.S. state)
* List of power plants in Georgia
* Sixtoe Mound
* Pumped-storage hydroelectricity
Pumped-storage hydroelectricity (PSH), or pumped hydroelectric energy storage (PHES), is a type of hydroelectric energy storage used by electric power systems for load balancing. The method stores energy in the form of gravitational potent ...
* List of energy storage projects
This is a list of energy storage power plants worldwide, other than pumped hydro storage.
Many individual energy storage plants augment electrical grids by capturing excess electrical energy during periods of low demand and storing it in o ...
* List of pumped-storage hydroelectric power stations
The following page lists all pumped-storage hydroelectric power stations that are larger than in installed generating capacity, which are currently operational or under construction. Those power stations that are smaller than , and those that ar ...
*
References
U.S. Army Corps of Engineers: Pertinent data on Carters Dam and Lake
External links
U.S. Army Corps of Engineers: Carters Lake
U.S. Army Corps of Engineers: Carters Lake
{{coord, 34.6154, -84.6739, region:US-GA, display=title
Dams in Georgia (U.S. state)
Buildings and structures in Murray County, Georgia
United States Army Corps of Engineers dams
Dams completed in 1977
ACT River Basin
1977 establishments in Georgia (U.S. state)
Pumped-storage hydroelectric power stations in the United States