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Posted 1/13/2015

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By Mark Jones
Pittsburgh District

Members of the Inland Navigation Design Center and U.S. Army Corps of Engineer Pittsburgh District personnel visited Monongahela Locks and Dam 4 at Charleroi, Jan. 9, to conduct an In Progress Review of the new river wall remediation activities undertaken by the Trumball-Brayman Joint Venture. 

Despite the weather conditions, the contractor is proceeding with work and the IPR was positive. 

Work includes a drill rig coring through an anomaly in a drilled shaft that supports the monolith.  Once the coring is complete, the contractor cleans out the anomaly and then fills the void with a specialized grout. 

Not pictured are Kirk McWilliams, district resident engineer; Alex Bredikhin, district geotechnical lead engineer; and Glenn Bush, district materials technician.

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construction core Drill in process review inland navigation lock and dam Monongehela River Pittsburgh remediation rig USACE wall