HomeCapabilitiesDams Dams Earthwork and concrete construction for both new and existing impoundments. Featured Projects: Lake Holiday Dam Concrete Spillway Reconstruction Start to Completion: September 2011 to February 2013 Devil's Backbone Park Rehabilitation Project Start to Completion: May 2011 to May 2012 Dam 5 Boil Repairs Start to Completion: October 2010 to December 2010 Sand Mine Cove Ridge Tailings Impoundment in Gore, VA Start to Completion: October 2005 to April 2006