The Effects of Sand Dredging on Channel Morphology, Habitat, and Water Quality in Urban DeKalb County Streams
Author(s)
Keyes, Jennifer
Jackson, C. Rhett
Jackson, Ben
Advisor(s)
Editor(s)
Hatcher, Kathryn J.
Collections
Supplementary to:
Permanent Link
Abstract
DeKalb County, Georgia, has instituted a dredging program to reduce sediment loads and
increase channel conveyance. Limited data existed on the effects of dredging in Piedmont streams at the time this study was commissioned. This study is being
conducted as a joint agreement between DeKalb County and the U.S Army Corps of Engineers to evaluate the effects of dredging in urban streams with sand beds and high sediment loads. Two sites were selected for this study, one active dredge site and one future dredge site Upstream and downstream measurements have been collected and analyzed at the active dredge site for the last two years. Preliminary data analysis suggests that the channel reaches downstream of the active dredge site are moving toward a coarser particle-size distribution and a slightly higher frequency of pools and riffles.
Sponsor
Sponsored and Organized by: U.S. Geological Survey, Georgia Department of Natural Resources, Natural Resources Conservation Service, The University of Georgia, Georgia State University, Georgia Institute of Technology
Date
2001-03
Extent
Resource Type
Text
Resource Subtype
Proceedings