Electrical Power for Valdez and the Copper River Basin-1981

U.S. Forest Service when the line location is established. Constructionand maintenance of the transmission 1 ine would be by road and helicopter.A cleared 10-foot wide hiking trail would be provided for inspectionaccess.The transmission 1 ine would be approximately 0.5 mile longer for thealternate powerhouse No.2 but the terrain is of similar characteristicthroughout the transmission line.BUILDINGS, GROUNDS, AND UTILITIESNo permanent housing and maintenance facilities would be requiredexcept for a small warehouse for maintenance equipment and supplystorage. Existing dirt roads would be used as necessary duringconstruction and operation of the project. No sewer and water systemswould be required except those in the powerhouse.COST ESTIMATESAll estimates are based on October 1980 price levels. Thecontingency used for all alternatives was 20 percent. Engineering andDesign, and Supervision and Administration costs are each 8 percent ofconstruction costs. The cost data was obtained from bid prices on recentmajor power projects in the Pacific Northwest and Alaska, and adjusted toreflect current price levels, Alaska labor costs, and transportationcosts to the sites. T~e construction time was estimated to take 4 yearsand power-on-line would be 1988 or 1990.D-4