Post Falls Dam work continues into fall season   

Tags: Avista Utilities, Electricity, Hydro power, Lake Coeur d'Alene, Spokane River

Q’emiln Park boat launch to close Nov. 5

Removal of a wooden intake gate at Post Falls Dam
A timber intake gate is removed from the Post Falls Dam in
August 2012. We’re replacing the lifting hoists and old timber
intake gates at the dam with modern lifting hoists and new
steel gates.
You may remember early this summer we announced a project to replace the lifting hoists and old timber intake gates at our Post Falls Dam on the Spokane River with modern lifting hoists and new steel gates. The project began in July and crews will continue to work on it into the winter until it’s completed. The dam needs ongoing maintenance and updates to keep it running safely and efficiently. The work is expected to update a system that is more than 100 years old in places, enhancing safety and increasing reliability and efficiency at the dam.

Currently we’re completing work on the first of the dam’s six intake gates.  This week we temporarily opened spill gates at the dam to test the operation of the first new gate and put the generating unit below it back into service. 

Seasonal closure of Q’emiln Park boat launch Nov. 5
The Q’emiln Park boat launch will be closed for the season beginning Monday, Nov. 5. The ramp is typically closed each year in mid-November due to weather conditions and dropping water levels.

The boat launch must remain closed for safety reasons whenever water is spilled through gates at the Post Falls Dam, which can be the case for much of the fall through spring. Generally, the ramp re-opens in the late spring or early summer, depending on the amount of inflows into Coeur d’Alene Lake.

As a result of Avista’s annual drawdown of Coeur d’Alene Lake, Spokane River levels above the dam will be approximately two and a half feet below the summer full-pool elevation of 2,128 feet on Nov. 5. Water levels may drop by as much as five additional feet by the end of January. These water levels are subject to change due to weather conditions.

Stay safe on the water
We’d like to remind you to always exercise caution on the water, as river and lake levels can change at any time depending on weather and other factors.

The best way to get the most current information on anticipated elevation changes on Coeur d’Alene Lake, Lake Spokane, and the Spokane River is to call Avista’s 24-hour telephone information line.

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 lake and river elevation levels that may affect plans for water use. You can also check current river and lake levels on our website.

Posted by  System Account  on  11/2/2012
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