Please use this identifier to cite or link to this item: https://hdl.handle.net/11681/44905
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dc.contributor.authorPerkey, David W.-
dc.contributor.authorPriestas, Anthony M.-
dc.contributor.authorCorbino, Jeffrey M.-
dc.contributor.authorBrown, Gary L.-
dc.contributor.authorHartman, Michael A.-
dc.contributor.authorTarpley, Danielle R. N.-
dc.contributor.authorLuong, Phu V.-
dc.creatorCoastal and Hydraulics Laboratory (U.S.)-
dc.date.accessioned2022-07-29T19:44:58Z-
dc.date.available2022-07-29T19:44:58Z-
dc.date.issued2022-07-
dc.identifier.govdocERDC/CHL TR-22-13-
dc.identifier.urihttps://hdl.handle.net/11681/44905-
dc.identifier.urihttp://dx.doi.org/10.21079/11681/44905-
dc.descriptionTechnical Reporten_US
dc.description.abstractTo maintain the navigability of the Calcasieu Ship Channel (CSC), the US Army Corps of Engineers annually dredges millions of cubic yards of sediment from the inland channel. To assess sources of channel shoaling, a previous study examined river and bankline erosion as inputs. Results from that study accounted for approximately 20% of dredged volumes. Through the support of the Regional Sediment Management Program, a follow-up investigation reviewed prior sediment budgets, identified potential missing sediment sources, modeled potential sediment pathways, and utilized geochemical fingerprinting to discern primary shoaling sources to the channel. The missing sediment sources from the original budget include coastally derived sediment from the Gulf of Mexico and terrestrially derived sediment from Lake Calcasieu and surrounding wetlands. Results from geochemical fingerprinting of various potential sediment sources indicate the Calcasieu River and the Gulf of Mexico are primary contributors of sediment to the CSC, and sediments sourced from bankline erosion, Lake Calcasieu bed, and interior wetlands are secondary in nature. These results suggest that engineering solutions to control shoaling in the CSC should be focused on sources originating from the Gulf of Mexico and river headwaters as opposed to Lake Calcasieu, channel banklines, and surrounding wetlands.en_US
dc.description.sponsorshipPrepared for Regional Sediment Management Program under Funding Account Code U4376577; AMSCO Code 008303en_US
dc.description.tableofcontentsAbstract .................................................................................................................................... ii Figures and Tables .................................................................................................................. iv Preface ...................................................................................................................................... v 1 Introduction ...................................................................................................................... 1 1.1 Background ........................................................................................................ 1 1.2 Objective............................................................................................................. 3 1.3 Approach ............................................................................................................ 3 1.4 Report contents ................................................................................................. 4 2 Previous Sediment Budget Research ............................................................................ 5 2.1 Review of prior sediment budget ...................................................................... 5 2.2 Identification of additional sediment sources ................................................. 6 3 Evaluating Sediment Sources ...................................................................................... 10 3.1 Initial geochemical fingerprinting ................................................................... 10 3.2 Geochemical fingerprinting of high shoaling areas ...................................... 13 4 Conclusions .................................................................................................................... 17 References ............................................................................................................................. 18 Appendix: 2020 Geochemical Fingerprinting ................................................................... 20 Acronyms and Abbreviations ............................................................................................... 29 Report Documentation Page-
dc.format.extent37 pages / 3.22 MB-
dc.format.mediumPDF-
dc.language.isoen_USen_US
dc.publisherEngineer Research and Development Center (U.S.)en_US
dc.relation.ispartofseriesTechnical Report (Engineer Research and Development Center (U.S.));no. ERDC/CHL TR-22-13-
dc.rightsApproved for Public Release; Distribution is Unlimited-
dc.sourceThis Digital Resource was created in Microsoft Word and Adobe Acrobat-
dc.subjectCalcasieu River (La.)en_US
dc.subjectChannels (Hydraulic engineering)en_US
dc.subjectDredgingen_US
dc.subjectDredging spoilen_US
dc.subjectLake Charles (La.)en_US
dc.subjectMexico, Gulf ofen_US
dc.subjectSedimentation and depositionen_US
dc.subjectSediment transporten_US
dc.titleSediment Provenance Studies of the Calcasieu Ship Channel, Louisiana : A Synopsis Reporten_US
dc.typeReport-
Appears in Collections:Technical Report

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