Stockton Lake is a reservoir located in southeastern
Cedar County
Cedar County may refer to:
* Cedar County, Iowa
* Cedar County, Missouri
* Cedar County, Nebraska
* Cedar County, Choctaw Nation
* Cedar County, Washington
The list of county secession proposals in the United States includes proposed new coun ...
, northeastern
Dade County, and southwestern
Polk County, Missouri
Polk County is a county located in the southwestern portion of the U.S. state of Missouri. As of the 2010 census, the population was 31,137. Its county seat is Bolivar. The county was organized January 5, 1835,Laws of a public and general natu ...
. The lake is 'V' shaped, and covers , with of shoreline.
It has three marinas, and 10 public-use areas. It has a "non-development policy," and is surrounded by unspoiled, tree-covered hills. Its banks are owned and operated by the
Army Corps of Engineers.
![StoctonLakeBoats](https://upload.wikimedia.org/wikipedia/commons/3/3f/StoctonLakeBoats.jpg)
Stockton Lake is one of Missouri's seven major lakes, all man-made. It was formed by damming the
Sac River
The Sac River (pronounced, sock) is a river in the Ozarks of Southwest Missouri. It is long,U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed May 31, 2011 with headwaters in western Green ...
near the city of
Stockton in 1969. The lake is crossed by three state highways over a network of six bridges. A pipeline carries water from Stockton Lake to
Fellows Lake
Fellows Lake is an source of water for the city of Springfield, Missouri. The lake was created by the impoundment of the Little Sac River behind the Fellows Lake Dam. The dam was originally constructed in 1955 and modified in 1991. The earthen and ...
in northern
Greene County to help supplement water for the city of
Springfield
Springfield may refer to:
* Springfield (toponym), the place name in general
Places and locations Australia
* Springfield, New South Wales (Central Coast)
* Springfield, New South Wales (Snowy Monaro Regional Council)
* Springfield, Queenslan ...
. Stockton lake has numerous coves protected from the wind making it a great lake to wakeboard, water ski or other water sports.
Stockton Dam and hydroelectric power plant
After the USACE construction was complete on the dam, the lake began filling in 1969.
[Sac River Hydrology]
Conservation Commission of Missouri The dam rises above the Sac River streambed.
The lake is about with of shoreline. Normal pool is at 867 feet above
mean sea level
There are several kinds of mean in mathematics
Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. ...
(msl) with storage of .
The flood storage capacity of the lake is of water at an elevation of 892 ft msl, during which the surface area of the reservoir grows to . Stockton Lake is operated primarily for flood control and
hydroelectric
Hydroelectricity, or hydroelectric power, is electricity generated from hydropower (water power). Hydropower supplies one sixth of the world's electricity, almost 4500 TWh in 2020, which is more than all other renewable sources combined and ...
generation and originally had an installed capacity of 45.2 MW in a single electric generator.
[MDNR. 1986. Missouri water atlas. Missouri Department of Natural Resources, Jefferson City, Missouri. 97 pp.]
The original powerhouse of the dam had a single six-bladed
Kaplan turbine
The Kaplan turbine is a propeller-type water turbine which has adjustable blades. It was developed in 1913 by Austrian professor Viktor Kaplan, who combined automatically adjusted propeller blades with automatically adjusted wicket gates to ach ...
designed by
Newport News Shipbuilding and Dry Dock Company
Newport News Shipbuilding (NNS), a division of Huntington Ingalls Industries, is the largest industrial employer in Virginia, and sole designer, builder and refueler of United States Navy aircraft carriers and one of two providers of U.S. Navy ...
and a
General Electric
General Electric Company (GE) is an American multinational conglomerate founded in 1892, and incorporated in New York state and headquartered in Boston. The company operated in sectors including healthcare, aviation, power, renewable energ ...
generator rated at 45.2 MW.
[Hydro Review: Replacing a Failed Runner at the Stockton Plant 03/07/2014]
(typo is in original source saying 52 MW instead of 45.2 MW), Ryan Sollars, Daniel McGinnis and John Kinard. Hydroworld, Volume 33, Issue 2. The original turbine was placed in service in 1973.
After years of heavy vibration and a poorly matched turbine design, one of the blades catastrophically failed in February 2009, causing an immediate shutdown of the plant.
The sheared off blade, weighing , was later recovered from the river.
The turbine runner was repaired in 2010 by welding the old blade back in place. Other cracks were also discovered and repaired at this time.
While the repaired turbine was operating, the Corps of Engineers and contractors tried to determine how to correct the issues at Stockton Dam. Analysis concluded that the original turbine was likely rated for a much different site due to its ability to spin at nearly full power without tilting the blades past their "full flat" setting.
Why the turbine and generator were mismatched has not been determined. Due to the significant issues and age of the turbine, an entirely new one was custom designed for replacement in 2014-2015. Upgrades for the $48 million project include:
* The new 71,700-horsepower Kaplan turbine runner,
with 7 bolt on blades (rather than 6),
75 rpm
* rewiring the generator windings of the rotor and stator
* electrical rating increase to 52 MW
[Stockton Dam close to resuming hydroelectric power]
''Washington Times'', January 20, 2014.[New turbine makes trip to Stockton Dam]
KY3 News, Dec 24, 2013.
* new digital excitation system, surface air coolers, and digital governor for the generator
* refurbishment of the mechanical accessories
* 161 kV main power transformer replacement
* Intake gate and draft tube bulkhead repairs
* Salvage and in-place blade repair
* emergency diesel generator replacement
* asbestos abatement and lead paint removal.
The Stockton Power Plant is a peaking plant that produces 55 GWh of average annual energy valued at $8.3 million.
The new, more efficient turbine was installed in 2014
and became operational in January 2015.
[Stockton Power Plant Back Online]
Southwestern Power Administration, Press Release, 2015-01-29
PDF
/ref> Part of the costs of the repair were offset by the American Recovery and Reinvestment Act
American(s) may refer to:
* American, something of, from, or related to the United States of America, commonly known as the "United States" or "America"
** Americans, citizens and nationals of the United States of America
** American ancestry, pe ...
. The old turbine was placed on a pedestal above the road which crosses the dam.
Stockton Equestrian Trail
Stockton Lake features an equestrian
The word equestrian is a reference to equestrianism, or horseback riding, derived from Latin ' and ', "horse".
Horseback riding (or Riding in British English)
Examples of this are:
* Equestrian sports
*Equestrian order, one of the upper classes i ...
trail that is approximately 15 miles long and travels in close proximity along the lake shore from Hawker Point to Orleans Trail Campgrounds.[http://www.nwk.usace.army.mil/st/Equestrian.cfm Equestrian Trail] This is a multi use trail for Hikers and Mountain biking, there are no motorized vehicles allowed.
Sailing at Stockton
The great sailing conditions are fueled by winds from Oklahoma
Oklahoma (; Choctaw language, Choctaw: ; chr, ᎣᎧᎳᎰᎹ, ''Okalahoma'' ) is a U.S. state, state in the South Central United States, South Central region of the United States, bordered by Texas on the south and west, Kansas on the nor ...
and Kansas
Kansas () is a state in the Midwestern United States. Its capital is Topeka, and its largest city is Wichita. Kansas is a landlocked state bordered by Nebraska to the north; Missouri to the east; Oklahoma to the south; and Colorado to the ...
, consistently blowing from west to east across the lake. About one-third of the 300 mile lake is accessible to sailboats
A sailboat or sailing boat is a boat propelled partly or entirely by sails and is smaller than a sailing ship. Distinctions in what constitutes a sailing boat and ship vary by region and maritime culture.
Types
Although sailboat terminology ...
, the bridges across the lake on Highway 215 and 245 prevent most sail boats from going farther on the lake, but this section of lake is still an ideal location for sailing. The Stockton Yacht club holds annual races on the lake that usually draw large numbers of boats, with the most prestigious of these races being the Governor's Cup Regatta.
References
External links
*http://www.stockton-lake.com/
*http://www.nwk.usace.army.mil/Locations/DistrictLakes/StocktonLake.aspx
*Upgrades and costs of new turbine: http://www.swpa.gov/PDFs/Hydro/2014Meeting/Stockton-Rehabilitation_HentschelWankum.pdf
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Dams in Missouri
Lakes of the U.S. Interior Highlands
Protected areas of Cedar County, Missouri
Protected areas of Dade County, Missouri
Protected areas of Polk County, Missouri
Buildings and structures in Cedar County, Missouri
Buildings and structures in Dade County, Missouri
Buildings and structures in Polk County, Missouri
Reservoirs in Missouri
Bodies of water of the Ozarks
United States Army Corps of Engineers dams
Bodies of water of Cedar County, Missouri
Bodies of water of Dade County, Missouri
Bodies of water of Polk County, Missouri