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Project Related

Drawdown landslides in muddy sediments at the Condit Dam

November 14, 2011 rockman Project Related Comments Off on Drawdown landslides in muddy sediments at the Condit Dam

Dr. Dave has a nice post about rapid drawdown slope failures and he ties it in to a neat video (below) of the removal of the Condit Dam in Washington state. The video shows some […]

Aerial view of the Lake Delhi Recreation Association Dam after it had been compromised. (Mark Benischek)
Failures

Iowa asks FEMA to reconsider Lake Delhi decision, repair estimate $6M

November 10, 2010 rockman Failures Comments Off on Iowa asks FEMA to reconsider Lake Delhi decision, repair estimate $6M

Part of the dam collapsed in July during flooding by the Maquoketa River, draining a nine-mile lake. FEMA officials decided the dam wasn’t elligible for federal emergency funding because it is owned by a private […]

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Project Related

Emergency Repair of Allegheny River Lock No. 6

June 12, 2009 rockman Project Related Comments Off on Emergency Repair of Allegheny River Lock No. 6

Severe erosion was discovered on an October 2008 inspection of Allegheny River Lock and Dam No. 6 near Pittsburgh, PA, a US Army Corps of Engineers structure. In the Q1 2009 issue of PileDriver Magazine […]