Please use this identifier to cite or link to this item: https://hdl.handle.net/11681/37093
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dc.contributor.authorFrey, Ashley E.-
dc.contributor.authorCoe, Lauren A.-
dc.date.accessioned2020-06-19T13:23:36Z-
dc.date.available2020-06-19T13:23:36Z-
dc.date.issued2020-06-
dc.identifier.govdocERDC/CHL TR-20-9-
dc.identifier.urihttps://hdl.handle.net/11681/37093-
dc.identifier.urihttp://dx.doi.org/10.21079/11681/37093-
dc.descriptionTechnical Report-
dc.description.abstractThis study characterizes infilling responses within dredged navigation channels to rainfall from tropical storms and hurricanes. This project created a web tool based on the methods described in this report. This report discusses the different analysis methods considered to relate storm and rainfall to dredging volumes at two pilot sites, Galveston, TX, and Mayport, FL. A comprehensive storm Impact Factor for hurricanes was developed to quantify the impact at a site based on proximity, duration, and wind speed. The methods vary based on the length and timing of periods of storms and rainfall prior to a dredge event. At Galveston, TX, when 2-year dredging volume totals were compared to hurricane activity occurring in the previous 2 years, the maximum dredging volume removed was higher after higher hurricane activity when compared to low activity periods. The average amount dredged was higher following periods of high hurricane activity. At Mayport, FL, dredging volumes were compared to hurricane activity occurring since the last dredging action took place. Similarly to Galveston, TX, the maximum dredging volume removed was higher after higher hurricane activity periods when compared to low activity periods. The average amount dredged was higher following periods of high hurricane activity.en_US
dc.description.sponsorshipDredging Operations and Environmental Research Program (U.S.)en_US
dc.description.tableofcontentsAbstract .................................................................................................................................... ii Figures and Tables ................................................................................................................... v Preface ...................................................................................................................................viii 1 Introduction ...................................................................................................................... 1 1.1 Background ........................................................................................................ 1 1.2 Objective............................................................................................................. 2 1.3 Approach ............................................................................................................ 2 1.4 Galveston, TX ..................................................................................................... 3 1.5 Mayport, FL ........................................................................................................ 4 1.6 Report organization ........................................................................................... 6 2 Site Conditions ................................................................................................................. 7 2.1 Hurricanes and tropical storms ........................................................................ 7 2.1.1 Galveston, TX ............................................................................................................... 7 2.1.2 Mayport, FL ................................................................................................................ 10 2.2 Precipitation .................................................................................................... 12 2.2.1 Galveston, TX ............................................................................................................. 12 2.2.2 Mayport, FL ................................................................................................................ 16 2.3 Dredging history .............................................................................................. 18 2.3.1 Galveston Harbor, TX ................................................................................................ 18 2.3.2 Mayport Basin, FL ..................................................................................................... 20 3 Storm and Precipitation Analysis ................................................................................. 22 3.1 Tropical storm and hurricane analysis .......................................................... 22 3.1.1 Hurricanes and infilling ............................................................................................. 22 3.1.2 Determination of Impact Factor ............................................................................... 22 3.2 Precipitation analysis ...................................................................................... 31 3.2.1 Galveston, TX ............................................................................................................. 31 3.2.2 Mayport, FL ................................................................................................................ 34 3.3 Dredged volume comparison methods ......................................................... 35 3.3.1 Method 1 – Time between dredging events ............................................................ 36 3.3.2 Method 2 – Set blocks of time ................................................................................. 40 3.4 Classification of years .................................................................................... 45 3.5 Methods discussion ........................................................................................ 47 4 Results and Discussion ................................................................................................. 49 4.1 Galveston Harbor, TX ...................................................................................... 49 4.2 Mayport Basin, FL ............................................................................................ 51 5 Conclusions .................................................................................................................... 55 References ............................................................................................................................. 56 Appendix A: Additional Houston-Galveston, TX, Channels Dredging History ................ 57 Appendix B: Alternate Dredge Volume Comparison Methods, Galveston, TX ............... 64 Unit Conversion Factors ....................................................................................................... 75 Acronyms and Abbreviations ............................................................................................... 76 Report Documentation Page-
dc.format.extent88 pages / 8.95 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-20-9-
dc.rightsApproved for Public Release; Distribution is Unlimited-
dc.sourceThis Digital Resource was created in Microsoft Word and Adobe Acrobat-
dc.subjectChannels (Hydraulic engineering)en_US
dc.subjectDredgingen_US
dc.subjectDredging spoilen_US
dc.subjectGalveston; (Tex.)en_US
dc.subjectHurricanesen_US
dc.subjectMayport (Jacksonville; Fla.)en_US
dc.subjectPrecipitation (Meteorology)en_US
dc.titleEffect of tropical storms and precipitation on dredging volumes : Houston-Galveston, TX, and Mayport, FLen_US
dc.typeReporten_US
Appears in Collections:Technical Report

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