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Avista Begins Annual Lake Drawdown
Lake levels on Coeur d’Alene Lake and Spokane River to be lowered


Avista will begin lowering the water level at Lake Coeur d’Alene and the Spokane River behind Post Falls Dam on Tuesday, September 8 in accordance with its new Federal Energy Regulatory Commission license.

Avista manages the lake level to prepare for spring runoff, to mitigate flooding in the winter and to optimize power production. The drawdown will take several months to complete.

“Depending on weather conditions, the lake will be lowered from its current summer elevation of near 2,128 feet to 2,122 feet by the end of December at a rate of 1.5 feet per month,” said Pat Maher, Avista Utilities senior hydro operations engineer.

Shoreline property owners and boaters should be aware of the annual draft so they can make any necessary preparations, including removing boats from water and securing docks for low-water conditions.

Spokane River users are urged to use extra caution as water levels may change quickly. This warning applies to all areas of the river, especially in the vicinity of hydroelectric facilities.

Avista Corp. has a 24-hour telephone information line that provides notification of anticipated elevation changes on Lake Coeur d’Alene, Lake Spokane and the Spokane River during the subsequent 24-hour and one-week periods. In Idaho, call (208) 769-1357; in Washington call (509) 495-8043.

The recorded information is provided to advise shoreline property owners, commercial and recreational users of changes in the lake and river elevation levels that may affect plans for water use.

By obeying warning signs, using common sense and following area rules and regulations, boaters, swimmers and other recreational users can safely enjoy the Inland Northwest’s scenic waterways.

With changing water levels, it is important to exercise extra caution when recreating on area waterways. Always follow these safety tips:

§ Be alert for debris, obstructions, and partially submerged objects.

§ Always obey warning signs near dams such as: "Danger / Extreme Current / Stay Out, Stay Alive."

§ Never cross boater restraining cables or buoy lines that designate areas where boats should not operate.

§ Never anchor your boat below a dam – water levels can change rapidly with little warning.

§ If in a sailboat or catamaran, watch for overhead cables and power lines.

§ Always wear personal flotation devices (PFDs), no matter what your age or swimming ability.

§ Never operate watercraft under the influence of drugs or alcohol.


Avista Corp. is an energy company involved in the production, transmission and distribution of energy as well as other energy-related businesses. Avista Utilities is our operating division that provides electric service to 353,000 homes and businesses and natural gas to 313,000 homes and businesses in three Western states, serving more than 492,000 customers. Avista’s primary, non-regulated subsidiary is Advantage IQ. Our stock is traded under the ticker symbol “AVA.” For more information about Avista, please visit www.avistacorp.com.


Avista Corp. and the Avista Corp. logo are trademarks of Avista Corporation.

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