1. ERDC Knowledge Core
  2. Engineer Research and Development Center (ERDC)
  3. Coastal and Hydraulics Laboratory (CHL) - (before 9/1981 - present)
  4. Publication
  5. Technical Report
Please use this identifier to cite or link to this item: https://hdl.handle.net/11681/34185
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dc.contributor.authorJohnston, Morgan M.-
dc.date.accessioned2019-09-25T15:19:17Z-
dc.date.available2019-09-25T15:19:17Z-
dc.date.issued2019-09-
dc.identifier.govdocERDC/CHL TR-19-16-
dc.identifier.urihttps://hdl.handle.net/11681/34185-
dc.identifier.urihttp://dx.doi.org/10.21079/11681/34185-
dc.descriptionTechnical Report-
dc.description.abstractCalcasieu Lock is located on the Gulf Intracoastal Waterway just north of Calcasieu Lake in Louisiana. Calcasieu Lock has three main purposes: facilitate navigation, provide flood relief during high flow events, and prevent saltwater intrusion into the Mermentau River Basin. During high flow events, the primary purpose of Calcasieu Lock is draining for flood relief. The upstream and downstream gates open to pass as much water as possible. When in draining mode, currents through the lock increase in strength and can cause eastbound traffic with smaller horsepower towboats to be unable to push upstream through the lock. This causes delays for the eastbound traffic. The US Army Corps of Engineers, New Orleans District (MVN), proposed a diversion channel to alleviate the amount of flow the lock must pass during these high flow events. In 2019, the US Army Engineer Research and Development Center Ship/Tow Simulator was used to perform a navigation study for the proposed diversion channel at Calcasieu Lock to assist MVN in verifying the proposed design. The final assessment of the diversion channel was accomplished through analysis of ship simulations completed by experienced pilots, discussions, track plots, run sheets, and final pilot surveys.en_US
dc.description.sponsorshipUnited States. Army. Corps of Engineers. New Orleans District.en_US
dc.description.tableofcontentsAbstract ................................................................................................................................................... ii Figures and Tables .................................................................................................................................. v Preface .................................................................................................................................................... vi 1 Introduction ..................................................................................................................................... 1 Background .............................................................................................................................. 1 Purpose ..................................................................................................................................... 2 Objective ................................................................................................................................... 3 Approach ................................................................................................................................... 4 Simulator description ............................................................................................................... 5 2 Reconnaissance Trip ...................................................................................................................... 6 3 Proposed Improvements ................................................................................................................ 7 Original proposed diversion channel ....................................................................................... 7 Modified proposed diversion channel ..................................................................................... 7 4 Database Development ................................................................................................................. 9 Design vessel ............................................................................................................................ 9 Visual database ........................................................................................................................ 9 Environmental database .......................................................................................................... 9 Wind ............................................................................................................................................ 10 Current development ................................................................................................................. 10 Modifications for additional testing ....................................................................................... 11 5 Validation ....................................................................................................................................... 12 6 Results ........................................................................................................................................... 14 Production runs – initial testing ............................................................................................ 14 East side of Calcasieu Lock - loaded 6-pack transiting eastbound ......................................... 18 East side of Calcasieu Lock - loaded 6-pack transiting westbound ........................................ 19 West side of Calcasieu Lock - loaded 6-pack transiting eastbound ........................................ 22 West side of Calcasieu Lock - loaded 6-pack transiting westbound ....................................... 24 East side of Calcasieu Lock - empty 6-pack barge scenarios .................................................. 25 Results from initial production runs ...................................................................................... 26 Production runs – additional testing ..................................................................................... 27 Alternative 1 – original diversion channel cut, lock open for westbound traffic .................... 28 Alternative 2 – modified diversion channel cut, lock closed for westbound traffic ............... 29 Alternative 3 – modified diversion channel cut, lock open for westbound traffic .................. 30 7 Production Runs Summary .......................................................................................................... 32 8 Conclusions and Recommendations ......................................................................................... 33 Final meetings ........................................................................................................................ 33 Concerns for westbound traffic east of Calcasieu Lock ....................................................... 33 Recommendations ................................................................................................................. 34 References ............................................................................................................................................ 36 Appendix A: Track Plots and Pilot Comments .................................................................................. 37 Appendix B: Final Pilot Questionnaires ............................................................................................. 98 Appendix C: Pilot Cards .................................................................................................................... 140 Unit Conversion Factors ................................................................................................................... 144 Acronyms and Abbreviations ........................................................................................................... 145 Report Documentation Page-
dc.format.extent154 pages / 47.17 Mb-
dc.format.mediumPDF-
dc.language.isoen_USen_US
dc.publisherCoastal and Hydraulics Laboratory (U.S.)en_US
dc.publisherEngineer Research and Development Center (U.S.)-
dc.relation.ispartofseriesTechnical Report (Engineer Research and Development Center (U.S.)) ; no. ERDC/CHL TR-19-16-
dc.rightsApproved for Public Release; Distribution is Unlimited-
dc.sourceThis Digital Resource was created in Microsoft Word and Adobe Acrobat-
dc.subjectCalcasieu Lock (La.)en_US
dc.subjectGulf Intracoastal Waterwayen_US
dc.subjectHydraulic structuresen_US
dc.subjectInland navigationen_US
dc.subjectLocks (Hydraulic engineering)en_US
dc.subjectRiver channelsen_US
dc.subjectWater diversionen_US
dc.titleCalcasieu Lock navigation study, Louisiana : Calcasieu Lock diversion channel ship simulation reporten_US
dc.typeReporten_US
Appears in Collections:Technical Report

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