Rock Blasting - Delaware River Deepening
The drillboat Apache, owned and operated by Great Lakes Dredge & Dock Company, conducts rock blasting operations off Chester, Pa., in January of 2016. Work is part of the Delaware River Main Channel Deepening project, a joint effort of the U.S. Army Corps of Engineers and PhilaPort.

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Photo by: Tim Hawk |  VIRIN: 121218-A-EO314-507.JPG