Impact of Near-Bottom Currents on Dredged Material Mounds Near Mobile Bay: Fid-Bau Portal

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Impact of Near-Bottom Currents on Dredged Material Mounds Near Mobile Bay

S. L. Douglass / D. T. Resio / E. B. Hands

The Corps' Dredging Research Program (DRP) and the U.S. Army Engineer District, Mobile (CESAM) have continued monitoring dredged material deposits (berms) and environmental factors at the NBDP site. For 4 years, these berms remained as distinct forms, but migrated persistently north northwest, toward the coast. This is the first report using measured waves and currents to investigate how large berms move. Several fundamental berm movement mechanisms are proposed and evaluated against the Alabama field measurements. The collected data are sufficient to reject some concepts of sediment movement that were previously relied on and suggest that two other proposed mechanisms are important.

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Impact of Near-Bottom Currents on Dredged Material Mounds Near Mobile Bay

S. L. Douglass / D. T. Resio / E. B. Hands

The Corps' Dredging Research Program (DRP) and the U.S. Army Engineer District, Mobile (CESAM) have continued monitoring dredged material deposits (berms) and environmental factors at the NBDP site. For 4 years, these berms remained as distinct forms, but migrated persistently north northwest, toward the coast. This is the first report using measured waves and currents to investigate how large berms move. Several fundamental berm movement mechanisms are proposed and evaluated against the Alabama field measurements. The collected data are sufficient to reject some concepts of sediment movement that were previously relied on and suggest that two other proposed mechanisms are important.

Impact of Near-Bottom Currents on Dredged Material Mounds Near Mobile Bay

S. L. Douglass / D. T. Resio / E. B. Hands

The Corps' Dredging Research Program (DRP) and the U.S. Army Engineer District, Mobile (CESAM) have continued monitoring dredged material deposits (berms) and environmental factors at the NBDP site. For 4 years, these berms remained as distinct forms, but migrated persistently north northwest, toward the coast. This is the first report using measured waves and currents to investigate how large berms move. Several fundamental berm movement mechanisms are proposed and evaluated against the Alabama field measurements. The collected data are sufficient to reject some concepts of sediment movement that were previously relied on and suggest that two other proposed mechanisms are important.

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Title:

Impact of Near-Bottom Currents on Dredged Material Mounds Near Mobile Bay

Contributors:

S. L. Douglass (author) / D. T. Resio (author) / E. B. Hands (author)

Publication date:

1995

Size:

60 pages

Type of media:

Report

Type of material:

No indication

Language:

English

Keywords:

Dynamic Oceanography , Civil Engineering , Ocean currents , Sediment transport , Dredged materials , Ocean bottom , Coastal regions , Sand , Bathymetry , Waste disposal , Coastal engineering , Alabama , Ocean tides , Bays , Berms , Mobile(Alabama)

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