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Emergency Repair of Allegheny River Lock No. 6

June 12, 2009 rockman 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 […]

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