U.S. seeks geo-technical expert for Isabella Dam safety program

The Corps of Engineers seeks a geo-technical expert to assist an ongoing dam safety assurance study of Isabella Dam on California’s Kern River that has a high risk of failure.

The Corps’ Sacramento District announced it will conduct an informational meeting Nov. 3-5, 2009, that is to be attended all three days.

An external peer review panel commissioned by the Corps confirmed in 2007 that Isabella has a high risk of failure. (HydroWorld 11/21/07) Isabella was one of six dams the Corps identified as having a high risk of failure during an initial screening of 130 dams in 2005 and 2006. Built in 1953 as a flood control and water conservation structure, Isabella Dam also controls flows released to Southern California Edison’s 12-MW Borel project (No. 382).

The Corps said the Isabella Dam study is the highest priority in the nation for the Corps’ dam safety assurance program. Initial studies have found the project could be subjected to extreme ground motions under earthquake conditions, with potential to cause failure of earthen slopes and release of the reservoir.

The Corps seeks a geo-technical engineer that is knowledgeable in dam engineering, risk assessment, and seepage analysis.

A solicitation may be obtained from the Federal Business Opportunities Internet site, www.fbo.gov, by entering Solicitation No. W9123810Q0014 in the “Keyword/Solicitation #” box. Bidders must register on the Central Contractor Registration Internet site, www.ccr.gov.

For information, contact Rachel Rosas, U.S. Army Engineer District, 1325 J St., Sacramento, CA 95814; (1) 916-557-6882; E-mail: rachel.a.rosas@usace.army.mil.

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