November 15, was the original day the lake drawdown was scheduled to end. However, due to local rainfall, and rainfall in the northwest portion of the watershed, that date has been extended to December 15.
“We are aware of the concerns and frustrations regarding the recent rise in lake levels during the drawdown period,” said Lake Commission President Jake Halley. “Both the Lake Commission and LADOTD are continuously monitoring lake levels/conditions.”
Currently one Tainter gate is open at a level of 2 feet.
Right now that is the maximum allowable gate height, due to the downstream bayou level being too low. The downstream level must reach a level of 61 feet in order to increase the Tainter gate height. Once the downstream level is high enough gates will be adjusted accordingly.
The latest rainfall event that occurred fell primarily within the Lake D’Arbonne drainage basin causing the rise, while at the same time the downstream bayou and Ouachita River were on the fall.
“We have officially extended the drawdown period from the previously scheduled November 15 cut off until December 15,” Halley said. “This means we will continue to attempt to maintain the 75 foot lake level until December 15.”