Report of the Secretary of the Army
on Civil Works Activities for Fiscal Year 1996
Department of the Army Corps of Engineers
Extract Report of the Walla Walla District
Lucky Peak Lake, Idaho
Existing project. The project includes a rolled-earthfill dam about 250 feet above the streambed and 1,700 feet long at the crest, with a lake providing a total storage at upper operating lake level of 306,000 acre-feet. Project provides for flood control, irrigation, and recreation (for details, see page 2,000 of the 1962 Annual Report).
Construction of the existing project was initiated in November 1949 and completed in June 1961. Since 1961, $282,095,000 (adjusted to October 1996 price index) in potential flood damages have been prevented by the project.
During a detailed study of outlet capacity and potential for adding hydropower to the existing project, a need for an auxiliary outlet became apparent. Construction of an auxiliary outlet was authorized in the Water Resource Development Act of 1976. In Fiscal Year 1978, an Interim Feasibility Report on Modification of Lucky Peak Dam and Lake (power facilities) was submitted to the Board of Engineers for Rivers and Harbors and approved. States, agencies, and the Chief of Engineers have commented on the report to the Secretary of the Army. The report was forwarded to the Office of Management and Budget in February 1982.
A license to construct and operate power facilities at the project was issued by the Federal Energy Regulatory Commission (Project #2832) to the Boise Project Board of Control on June 10, 1980, and modified on October 9, 1980 and in 1982. Construction of the auxiliary outlet facility began in May 1984 and was completed in August 1986. Construction of modifications to the existing outlet tunnel and powerhouse excavation began in August 1986 and was completed January 1987. Powerhouse general contract construction began in April 1986. The project was completed and dedicated on October 7, 1988. Power on-line for all units was August 18, 1988. The Federally-authorized 2nd outlet was deauthorized in Fiscal Year 1990.
Local cooperation. None required.
Operations during fiscal year. Operation and Maintenance: Normal operation and maintenance, which included the dam structures and recreation areas continued. Fiscal year costs were $974,531.