Savage Rapids Dam Removal and Replacement Pumping Facilities, Grants Pass Project, Oregon, Pacific Northwest Region. Status Report No. 12, January 1, 2009 through March 31, 2009

摘要

The Bureau of Reclamation announced that the two primary coffer dams essential to removal of Savage Rapids Dam on the Rogue River in Oregon will be completed by April 27, 2009. The coffer dams will allow the contractor, Slayden Construction Group, to slowly close the radial gates and raise the water surface behind Savage Rapids Dam starting on April 27 to restore fish passage through the dam's south fish ladder. Downstream flows will be somewhat reduced while water is stored behind the dam. A dry working environment within the coffer dams will allow crews to begin demolishing the right side of Savage Rapids Dam. The new Savage Rapids Pumping Plant is ready to begin operations at the start of the Grants Pass Irrigation District's 2009 irrigation season. Congress authorized Reclamation to construct the Savage Rapids Pumping Plant to supply water to the district. Plans call for removing the coffer dams and diverting the river through the breached section of the dam by October. Removal of two additional bays and other remaining construction should be completed by mid December 2009. The total estimated project cost is $39.3 million, with $3 million for dam removal provided by the Oregon Watershed Enhancement Board. The Grants Pass Irrigation District constructed Savage Rapids Dam in 1921, to divert water for irrigation. An amended 2001 Federal Court Consent Decree required the District to cease using the dam for water diversions by the end of the 2008 irrigation season. Congress subsequently authorized Reclamation to construct the Savage Rapids Pumping Plant to supply water to the district.