Located in the state of Washington, this is the second largest dam to be decommissioned in the United States. Completed in 1913, the 471-foot-long, 125-foot-high gravity dam provided electrical power for local industry. As owner’s engineer, Kleinfelder led a multi-disciplinary effort to complete this high- profile dam removal project on schedule in December 2012.
Stringent project and construction management strategies kept this project on schedule. Kleinfelder’s responsiveness and technical diversity enabled the utility to respond effectively to unanticipated events and maintain compliance with permit requirements. Use of the flowline saved money, and the soil nail wall enabled the utility to keep the bridge open, satisfying needs of surrounding communities.