LINVILLE LAND HARBOR DAM DEMOLITION AND REPLACEMENT
Location: Linville, North Carolina
Completion Date: June 2010
Phillips & Jordan Role: Prime Contractor
Originally built in 1927, the Linville Land Harbor Dam was destroyed in 1940 due to flooding and was subsequently re-built in 1971. Between 1971 and the mid-2000’s, the dam experienced significant deterioration due in part to alkali-silica reaction within the concrete mass. As a result of the deterioration, the North Carolina Department of Environment and Natural Resources identified the dam as the number one safety hazard in the state.
Phillips & Jordan was contracted to demolish portions of the existing Class I High Hazard Dam, and construct new earthen embankments and a concrete labyrinth spillway with an elliptical crest within the existing dam’s footprint. Work scope elements included construction of temporary cofferdams for river diversion and environmental protection of the Linville River, demolition of an emergency spillway and gated spillway structure, rock and soil excavation, foundation dewatering and grouting, core and shell embankment construction, installation of concrete reinforcing steel and cast-in-place concrete, installation of two sluice gates, and placement of Rip/Rap armor.
WATER RESOURCES SECTOR
Reservoirs • Dams • Levees • Waterways
Over the past 60 years, Phillips & Jordan has completed various water resource projects involving the construction for reservoirs, dams, impoundments, canals, and conveyance structures designed for water storage, flood control, transportation, power generation, and recreation.