Title:
Migration of Dredged Material Mounds: Predictions Based on Field Measurements of Waves, Currents, and Suspended Sediments, Brunswick, GA

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dc.contributor.advisor Work, Paul A.
dc.contributor.author Johnson, Charley R. en_US
dc.contributor.committeeMember F. Michael Saunders
dc.contributor.committeeMember Kevin Haas
dc.contributor.department Civil and Environmental Engineering en_US
dc.date.accessioned 2005-07-28T17:58:33Z
dc.date.available 2005-07-28T17:58:33Z
dc.date.issued 2005-04-20 en_US
dc.description.abstract The state of Georgia has two large ports that are accessed by way of navigable entrance channels. One of these ports is located in Brunswick, Georgia, and is maintained by the United States Army Corps of Engineers via periodic dredging. Sediments removed from the channel are typically pumped several miles offshore of Brunswick and placed in dredged material mounds, thus removing the sediment from the littoral cycle. This offshore placement, while being the most economically viable method, often negatively impacts the sediment budget of the coastal region and causes erosion downdrift of the channel, specifically along Jekyll Island. Onshore placement of the dredged material is not feasible due to increased associated costs and the high fraction of fines present in the material; thus, nearshore placement is a potentially viable alternative. Nearshore placement could possibly reduce erosion rates and provide protection to property from waves and storms. The USACE initiated a thorough field data collection campaign in 2002 to study the possibility of beneficial placement of dredged material. The author analyzed the existing data to predict the rate and direction of sediment movement away from an existing dredge mound. These predictions are then compared to bathymetric survey data in an effort to validate the results and methodologies used for sediment transport predictions. The ultimate goal is to use the results of this study along with numerical models currently being developed by the Corps to assess the possibility of sediments being transported toward the shore thus re-entering the littoral cycle and providing a benefit to the coast of Georgia. en_US
dc.description.degree M.S. en_US
dc.format.extent 1436973 bytes
dc.format.mimetype application/pdf
dc.identifier.uri http://hdl.handle.net/1853/6897
dc.language.iso en_US
dc.publisher Georgia Institute of Technology en_US
dc.subject Sediment transport en_US
dc.subject Dredge
dc.subject Spoil
dc.subject Mound
dc.subject Migration
dc.subject Nearshore
dc.subject Suspended load
dc.subject Bed load
dc.subject Total load
dc.subject Bathymetry
dc.subject Tracer
dc.subject Ripple
dc.subject Evolution
dc.subject.lcsh Littoral drift Georgia en_US
dc.subject.lcsh Coast changes en_US
dc.subject.lcsh Dredging Environmental aspects en_US
dc.subject.lcsh Dredging Georgia en_US
dc.subject.lcsh Littoral drift Environmental aspects en_US
dc.title Migration of Dredged Material Mounds: Predictions Based on Field Measurements of Waves, Currents, and Suspended Sediments, Brunswick, GA en_US
dc.type Text
dc.type.genre Thesis
dspace.entity.type Publication
local.contributor.corporatename School of Civil and Environmental Engineering
local.contributor.corporatename College of Engineering
relation.isOrgUnitOfPublication 88639fad-d3ae-4867-9e7a-7c9e6d2ecc7c
relation.isOrgUnitOfPublication 7c022d60-21d5-497c-b552-95e489a06569
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