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Avista Continues Project to Underground Nearly 11 Miles of Power Lines near Calder, Idaho
Lines are being moved underground because of difficulty in reaching area for maintenance and repairs; will help ensure reliability

Aug. 29, 2014:  On Sept. 8, Avista willbegininstalling over four miles of underground power cable along the Potlatch Road beginning at Calder, Idaho, and ending near mile marker 4.0 at Big Creek, Idaho. Work is expected to be completed by Oct. 30.
 
During that time, areas of Potlatch Road may be closed for up to eight hours. Signs alerting travelers to a delay will be posted at the entrance to Potlatch Road at Calder and at the Marble Creek Bridge. 
 
After the underground cable is installed, Avista crews will transfer customers in the area from Calder to Big Creek to the new underground power lines and remove the old overhead lines. Customers in that area may experience short outages during the transfer to the new underground power lines.
 
This is the second year of a three-year project to replace nearly 11 miles of aging overhead infrastructure in rugged terrain that is difficult to access, repair and maintain. The new underground infrastructure will increase reliability for customers from Calder, Idaho to Avery, Idaho.  
 
“We apologize to customers and those who regularly use Potlatch Road for any inconvenience they may experience while this work is underway,” said Larry Hager, Avista’s district manager for St. Maries. “I encourage customers who may be impacted by the project to visit our website at www.avistautilities.com or call (800) 227-9187 to make sure their current phone number is on record with Avista. That way, they will receive notices by phone on outages that will impact them.”
About Avista Utilities
Avista Utilities is involved in the production, transmission and distribution of energy. We provide energy services and electricity to 365,000 customers and natural gas to 325,000 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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