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Points
of Interest: across more than 80,000 miles of the Texas Landscape.
DISCLAIMER: Data displayed is automatically retrieved from remote sensors, is subject to revision and may be linked to various other available monitoring systems. The Trinity River Authority of Texas assumes no responsibility for the accuracy of this data. LOWER BASIN Lake Livingston Project Built, owned and operated by the Trinity River Authority of Texas (TRA), Lake Livingston is the largest lake constructed for water supply purposes only located totally within the State of Texas. The lake covers approximately 83,000 surface acres, with a normal pool elevation of 131 feet above mean sea level. The Livingston Dam, constructed across the Trinity River approximately seven miles southwest of the city of Livingston, is 2½ miles in length and has an average height of 55 feet. The average base width of the Dam’s earthen embankment is 310 feet wide. The spillway is designed and constructed to pass flows of three times the maximum-recorded flow of the river at this site. Rainfall amounts and current lake levels are of major concern to those who live in close proximity to a large body of water. By design, Lake Livingston has no flood control capabilities/flood storage capabilities, thus flows entering the lake, either from rainfall in the immediate area or from flows coming down the Trinity River, must be passed through the lake as the increased flows occur. Spillway operations at Lake Livingston mirror river flows. Within a relatively short period of time, as river flows increase, discharges increase and as river flows decrease, discharges decrease. Forecasting the possibility or probability for flooding in the Trinity Basin, as well as all other river basins in the US, is a responsibility of the National Weather Service (NWS). This data is routinely issued for the lower Trinity Basin by the Houston/Galveston office in League City – http://www.srh.noaa.gov. In addition, the Authority maintains and operates a system of Automated Rainfall Gauges and a system of automated Lake Level Monitors. RAINFALL A system of twelve Automated Rain Gauges in the 2,672 square mile drainage area are located immediately upstream of the Lake Livingston Dam. As rainfall occurs at these twelve sites it is reported via radio in approximately .04 inch increments to the lake operations office at the Livingston Dam and to the NWS. These gauges provide an estimate of "local rainfall impact" on the lake and subsequently on the downstream river basin/flood plain. LAKE LEVELS & RAINFALL
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