For years, infiltration washed substrate into a double-barrel 48-inch reinforced concrete culvert under Duval Road in Starke, Fla., causing sinkholes. The road feeds the main training areas of the Camp Blanding Joint Training Center.The Florida Army National Guard feared damage to heavy military equipment and the trailers transporting it when the wheels dropped into the sinkholes. After every heavy rain, forestry workers filled them in and resurfaced the road. Finally admitting defeat, the guard called Engineered Lining Systems, a Jacksonville-based company with a specialty in cured-in-place pipe and structure restoration."When we investigated, every joint in the 125-foot-long pipes was gone,"
