RIVERS – The annual drawdown of Lake Spokane, the Spokane River reservoir also known as Long Lake, has begun, Avista Utilities announced today in a media release.
Starting today, operators expect to lower the reservoir up to one foot a day for two or three weeks until it reaches its winter elevation of 13-14 feet below maximum summer elevation of 1,536 feet.
Under the right weather conditions, which include sustained periods of single-digit temperatures and little or no snow on the exposed lakebed, the drawdown is expected to help control Eurasian watermilfoil and other invasive aquatic weeds found in Lake Spokane. The drawdown also allows property owners to complete state and locally permitted repair and construction projects along the lake shoreline.
The lower winter elevation will be maintained until runoff conditions begin. Water levels can change with weather conditions in the upper Spokane River drainage.
For updates on changes at Lake Spokane, the Spokane River and Coeur d’ Alene Lake, check the Avista website or call: Washington (509) 495-8043; Idaho, call (208) 769-1357.