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Title: Investigation of Sources of Sediment Associated with Deposition in the Calcasieu Ship Channel
Authors: Brown, Gary L.
Luong, Phu V.
Keywords: Calcasieu River (La.)
Channels (Hydraulic engineering)
Lake Charles (La.)
Sedimentation and deposition
Sediment transport
Publisher: Engineer Research and Development Center (U.S.)
Series/Report no.: Technical Report (Engineer Research and Development Center (U.S.));no. ERDC/CHL TR-22-15
Abstract: The Calcasieu Ship Channel (CSC) is a deep-draft federal channel located in southwest Louisiana. It is the channelized lowermost segment of the Calcasieu River, connecting Lake Charles to the Gulf of Mexico. With support from the Regional Sediment Management Program, the US Army Corps of Engineers, New Orleans District, requested that the US Army Engineer Research and Development Center, Coastal and Hydraulics Laboratory, perform an investigation of the potential sources of sediment associated with dredging in the CSC. A previous study had quantified sediment from known sources, indicating that the known sediment sources contribute approximately only 21% of the volume that is regularly dredged from the channel. This technical report details the results of the current study, which employed multiple methods, including numerical analysis, to identify potential additional sources of sediment by first examining the available literature and the modeled energetics and flow pathways, and then estimating the quantities of sediment associated with these identified sources that may be contributing to the shoaling of the CSC. The results of these efforts were used to update the original sediment budget with estimates of the contributions from two additional sources: the erosion of interior wetlands and coastally derived sediments.
Description: Technical Report
Gov't Doc #: ERDC/CHL TR-22-15
Rights: Approved for Public Release; Distribution is Unlimited
Size: 33 pages / 6.25 MB
Types of Materials: PDF
Appears in Collections:Technical Report

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