March 14, 2016 (Toledo Bend Reservoir) - Spillway releases from the Toledo Bend Reservoir are continuing to be reduced as lake levels lower in the aftermath of the major rain event which dropped 18 inches of water directly over Toledo Bend. Toledo Bend Reservoir, operated by the Sabine River Authority of Texas and the Sabine River Authority, State of Louisiana reached a record level high of 174.36 feet mean sea level (msl) at 6:00 a.m. on March 10, 2016 due to the rainfall event. The current gauge reading at 2:00 pm Monday is 172.77 feet msl.
Releases through the spillway gates, which protect the integrity of the dam, follow the Guide for Spillway Gate Operation specifically designed for operation of the Toledo Bend Reservoir. Currently 9 gates are open to 8 feet and one generator is running 24 hours per day for a total release of 80,784 cubic feet per second (cfs).
Toledo Bend Reservoir is not a flood control reservoir and reaches full pool at 172.0 feet msl. The integrity of the dam is intact and is operating as designed.
Although rainfall from the major rain event has decreased, impacts from the event will include downstream flooding. The National Weather Service (NWS) is forecasting a record flood event for Southeast Texas and Southwest Louisiana. Their latest forecast model shows gauge heights to go over flood stage in Burkeville, Bon Weir, Deweyville and Orange.
The Burkeville gauge reached a peak flood stage of 53.82 feet at 2:30 p.m. on March 11, 2016 which is 6 feet above the flood stage recorded in 1989. The gauge at Bon Wier reached a peak flood stage of 44.21 feet on March 13, 2016 which is 6.3 feet above the flood stage recorded in 1989. NWS forecasts show a decrease for both gauges.
The Ruliff (Deweyville) gauge is forecasted to peak at a new record of 35.2 feet on Tuesday, March 15th which will be 6 feet above the flood level recorded in 1989. The water surface reached moderate flood stage (26 feet) on Saturday, March 12th and reached the major flood stage (28 feet) on Sunday, March 13th. It is forecasted to climb to the record peak by Tuesday. The Orange gauge went just above flood stage at 4.1 feet on Monday, March 14th and is expected to climb to a peak of 7.5 feet by Thursday, March 17th. This forecast is 1.6 feet above the flood level recorded in 1989.
The Sabine River Authority of Texas (SRA-TX) and the Sabine River Authority, State of Louisiana (SRA-LA) want to emphasize the importance of keeping informed and staying safe during this flooding event. Although SRA-TX and SRA-LA are coordinating with local Emergency Management Departments throughout the Lower Sabine River Basin, County and Parish officials handle any evacuation orders. Please contact your local county and parish offices for more information.
