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Avista begins rock, gravel and sediment removal and relocation at Monroe Street Dam

Sept. 4, 2012: This week, Avista plans to begin a project to move natural material downstream that has accumulated at the Monroe Street Dam in downtown Spokane, in accordance with state permits.
 
The high and extended river flows this spring caused large amounts of rocks, gravel and other materials to accumulate at the dam. About every two years, depending on river flows and the amount of material that is deposited in front of the dam, Avista moves the excess materials, which can damage the intake structure and interfere with power production.
 
The work is planned to begin on Sept 10 and continue for approximately two to three weeks. During this time, a crane will be located at the south abutment of the dam to collect the accumulated materials from the forebay (the area immediately upstream of the dam) and then place them back into the river below the dam.
 
“Public safety and protecting the surrounding environment are Avista’s top priorities as we do this work,” Speed Fitzhugh, Spokane River License Manager for Avista, said. “Redistributing the materials back into the river will allow them to continue to serve as a potential gravel source for spawning habitat in the lower Spokane River.”
 
Visitors will see a crane and its operator near the Monroe Street Dam, beginning this week and through the next several weeks and should keep clear of the crane, which will be fenced in for safety reasons. The public is reminded to stay out of the river in this area and keep clear of designated work areas.
 
About Avista Utilities
Avista Utilities is involved in the production, transmission and distribution of energy. We provide energy services and electricity to 359,000 customers and natural gas to 320,000 customers in a service territory that covers 30,000 square miles in eastern Washington, northern Idaho and parts of southern and eastern Oregon, with a population of 1.5 million.  Avista Utilities is an operating division of Avista Corp. (NYSE: AVA). For more information, please visit www.avistautilities.com.
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