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Title: Hydrodynamic and sediment transport modeling for James River dredged material management
Authors: Lackey, Tahirih C.
Bailey, Susan E.
Gailani, Joseph Z.
Kim, Sung-Chan.
Schroeder, P. R. (Paul R.)
Keywords: Dredging
Dredging spoil
Hydrologic models
James River (Va.)
Sedimentation and deposition
Sediment transport
Suspended sediments
Publisher: Coastal and Hydraulics Laboratory (U.S.)
Environmental Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Technical Report (Engineer Research and Development Center (U.S.)) ; no. ERDC TR-20-21
Abstract: The fate of material placed during dredging operations within the James River (Dancing Point-Swann Point reach) at a channel adjacent placement mound was modeled within this work. The study focuses on the potential migration of the placement mound into the channel as well as the transport of sediment resuspended during placement. A select combination of US Army Engineer Research and Development-developed models was utilized in this work to appropriately simulate hydrodynamic conditions, pipeline discharge near field suspended sediment estimates, far field transport of the pipeline discharge source term, and mound migration. Results show that the material released into the water column during placement remains in the placement area or is transported out of the area of interest downstream. A small fraction of sediment from the placement mound migrates into the channel after placement. The fine-grained nature of these sediments precludes these small volumes of sediment from depositing in the channel where the currents are strong.
Description: Technical Report
Gov't Doc #: ERDC TR-20-21
Rights: Approved for Public Release; Distribution is Unlimited
Size: 104 pages / 12.58 MB
Types of Materials: PDF
Appears in Collections:Technical Report

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