Dredge Bucket Comparison Demonstration at Boston Harbor

Sediment resuspension and loading characteristics of a Conventional (open-faced) clamshell bucket, an Enclosed clamshell bucket, and a CableArm clamshell bucket were studied under similar operating and environmental conditions in Boston Harbor during August 1999. Monitoring was conducted to characte...

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Bibliographic Details
Main Authors: Welp, Tim, Hayes, Don, Tubman, Mike, McDowell, Scott, Fredette, Tom, Clausner, James, Albro, Carl
Format: Report
Language:English
Subjects:
BBACDP(BROAD BAND ACOUSTIC DOPPLER CURRENT PROFILER)
BHNIP(BOSTON HARBOR NAVIGATION IMPROVEMENT PROJECT)
BOSS(BATTELLE OCEAN SURVEY SYSTEM)
BROADBAND
CABLEARM CLAMSHELL BUCKETS
Civil Engineering
COMPARISON
CONTAINERS
Containers and Packaging
CONVENTIONAL CLAMSHELL BUCKETS
DATA ACQUISITION
DEMONSTRATIONS
DENSITY
DOPPLER SYSTEMS
DREDGE BUCKETS
DREDGING
ENCLOSED CLAMSHELL BUCKETS
FAR FIELD
FLOW
FLOW VELOCITY
HARBORS
Hydrology, Limnology and Potamology
LOADING(HANDLING)
MONITORING
NAVIGATION
NEAR FIELD
PHYSICAL PROPERTIES
SEDIMENT RESUSPENSION CHARACTERISTICS
SITES
SUSPENDED SEDIMENTS
VELOCITY
WATER-TO-SOLIDS RATIOS
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Description
Summary:Sediment resuspension and loading characteristics of a Conventional (open-faced) clamshell bucket, an Enclosed clamshell bucket, and a CableArm clamshell bucket were studied under similar operating and environmental conditions in Boston Harbor during August 1999. Monitoring was conducted to characterize each bucket's near and far field sediment resuspension characteristics. Bucket-loading characteristics were investigated with regard to water-to-solids ratios dredged by the different buckets. Documentation of sediment resuspension in the water column and loading characteristics with conventional and enclosed clamshell buckets (a bucket type that includes both the contractor-built Enclosed and the CableArm buckets) will assist U.S. Army Corps of Engineers (USACE) Districts in making bucket selection decisions and provide data for the fate of dredged material numerical model verification.