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Title: Effects of Norfolk Harbor deepening on management of Craney Island Disposal Area
Authors: Hayes, Donald F.
Keywords: Spoil banks
Waste disposal sites--Virginia--Norfolk
Dredging spoil
Craney Island Disposal Area (Va.)
Publisher: Environmental Laboratory (U.S.)
Series/Report no.: Miscellaneous Paper;EL-87-1
Abstract: Abstract: Because of anticipated new dredging work in the Norfolk, Va., area, the capacity of the Craney Island dredged material containment area will need to be expanded. Several alternatives are available, including: (a) raising the dikes around the entire area, (b) dividing the area in three subcompartments and raising the dikes in each subcompartment individually, and (c) constructing a new area adjacent to the existing area. This report describes the evaluation of these alternatives, including sediment sampling, sedimentation and consolidation testing, weir sizing analysis, long-term dewatering, consolidation and desiccation analysis, and projection of storage capacity for each alternative. The recommended plan consists of constructing a 75-acre (30-ha) expansion along the western boundary of Craney Island and, if inflows are to exceed 250 cfs (7 cum/sec), increasing the weir lengths to maintain water quality. The existing disposal area should also be divided into three subcompartments with the dikes in each subcompartment raised individually.
Appears in Collections:Miscellaneous Paper

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