- Lake Livingston
lake_name = Lake Livingston
image_lake = Lake-livingston-shore.jpg
location = Polk, San Jacinto, Trinity and Walker Counties,
coords = coord|30.74|N|95.15|W|type:waterbody_region:US-TX|display=inline,title
type = artificial lake
inflow = Trinity River
outflow = Trinity River
catchment = convert|16616|sqmi|km2|abbr=on
basin_countries = United States
length = convert|31|mi|km|abbr=on
width = convert|9|mi|km|abbr=on
area = 336 km²
depth = convert|23|ft|m|abbr=on
max-depth = convert|90|ft|m|abbr=on
volume = convert|1750000|acre.ft|km3|abbr=on|lk=on
shore = over convert|450|mi|km|-1|abbr=on
elevation = convert|131|ft|m|abbr=on
reference = Handbook of Texas|id=LL/rolae|name=Lake Livingston. Retrieved
5 February 2007.]
Lake Livingston is a man-made reservoir located in the
East Texas Piney Woods. Lake Livingston was built, is owned and is operated by the Trinity River Authorityof Texas (TRA) under contract with the City of Houston for water supply purposes. The lake is the largest lake constructed for water supply purposes located totally within the State of Texas. The Livingston Dam, constructed across the Trinity River approximately convert|7|mi|km|0|lk=on southwest of the city of Livingston is convert|2.5|mi|km|0 in length and has an average depth of convert|55|ft|m|0|lk=on. [http://www.trinityra.org Trinity River Authority of Texas] - [http://data.trinityra.org/Lake_livingston_facts.htm Lake Livingston] . Retrieved 5 February 2007.]
The lake construction was paid for by the sale of revenue bonds that were to be redeemed with income derived from the sale of water. The dam construction began in 1966 and was completed in 1969, by Forrest and Cotton, Incorporated. Cost to build the earthen dam was US$83,996,957.
Water stored in the lake is used to supply industrial, municipal and agricultural needs in the lower Trinity River Basin and the Houston/Galveston metropolitan area. Its significance in the face of the extraordinary growth experienced by this region of the Upper Texas Gulf Coast is tremendous. A wide range of public and commercial recreation facilities including full service marinas, camping and motel accommodations are located along the shoreline. The City of Houston owns two-thirds of the water rights of the lake, with the other 1/3 remaining under control of the TRA.
The earthfill dam has a concrete spillway and was designed by Brown and Root, Incorporated. The dam has a spillway crest elevation of convert|99|ft|m|0 above mean sea level. The average base width of the Dam's earthen embankment is convert|310|ft|m|0 wide. The spillway is designed and constructed to pass flows of three times the maximum-recorded flow of the river at this site.
Lake Livingston has a surface area of 83,000 acres (360 km²) and impounds 1,750,000
acre feet(2.15 km³) of water at its normal pool elevation of convert|131|ft|m|0 above mean sea level. The average depth of the lake is convert|23|ft|m|0 with a maximum depth of convert|90|ft|m|0. Lake Livingston has more than convert|450|mi|km|-2 of shoreline extending into San Jacinto, Polk, Walker, and Trinity Counties.
Lake Livingston was built with no flood control capabilities/flood storage capabilities, and because of this all water entering the lake whether it be from rainfall or inflow, must exit the lake as increase intake occurs. Flow through the dam is controlled by 12 tainter gates in a concrete and steel spillway. Operations of the spillway mirror river flows, so within a relative short period of time of increase of river flow discharge is increased, and vice versa.
September 23, 2005, rain and winds from Hurricane Ritacaused waves up to 4 feet (1 m) in height to pound against the Lake Livingston dam. As a result, 11,000 feet (3.4 km) of large protective stones, or riprap, was stripped from the upstream face of the dam. To repair the damage the Trinity River Authoritylowered the lake's pool level by 4 feet to 127 feet, preventing any further erosion of the exposed earthen embankment. FEMAand the City of Houstonfooted the $9.6 million repair bill and awarded the repair contract to Archer Western Contractors. Over the course of the repair movement of 72,215 tons of 32 inch rock in 3,183 truckloads and 15,808 tons of eight-inch (200 mm) bedding rock in 687 truckloads was required. The rock was mined from a quarry in Navarro Countynear Corsicana. Work was largely completed by April 28, 2006, but due to a severe drought in 2006, the lake's regular pool level was not reached until the spring of 2007.
* [http://www.trinityra.org Trinity River Authority of Texas] - [http://data.trinityra.org/Lake_livingston_facts.htm Lake Livingston]
* [http://www.trinityra.org Trinity River Authority of Texas] - [http://www.trinityra.org/Facilities/facilities_water_supply.htm Water supply]
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