Building on Muck

by Jack Fowler, (M.ASCE), Research Civ. Engr.; Waterways Experiment Station, Corps of Engineers, Vicksburg, Miss.,

Serial Information: Civil Engineering—ASCE, 1985, Vol. 55, Issue 5, Pg. 67-69

Document Type: Feature article


The Craney Island Disposal Area at Norfolk, Va. is a 2,500 acre depository for material dredged from ports and channels in the Hampton Roads. The U.S. Army Corps of Engineers extended its useful life by building interior dikes. Because its base is very soft, previous construction methods required displacements 8 to 10 volumes down for one volume above the surface. Floating the interior dikes on geotextile provided the reinforcement necessary to prevent rotational foundation failure or embankment spreading until the soft foundation was sufficiently consolidated. Three test sections were built before construction began on the two main dikes.

Subject Headings: Levees and dikes | Dredged materials | Construction methods | Foundation settlement | Spread foundations | Cranes | Islands | Ports and harbors

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