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Forum Article
Publisher: American Society of Civil Engineers
Aquatic Habitat Bottom Classification Using ADCP
Publisher: American Society of Civil Engineers
Abstract: Description of physical aquatic habitat often includes data describing distributions of water depth, velocity, and bed material type. Water depth and velocity in streams deeper than about 1 m may be continuously mapped ...
Water Quality Effects of Excavation and Diversion
Publisher: American Society of Civil Engineers
Abstract: Water quality data collected from Yellow Creek in northeast Mississippi before and during construction of the Divide Cut of the Tennessee‐Tombigbee Waterway provide information regarding the water quality effects of stream ...
Chemical Clarification of Dredged Material
Publisher: American Society of Civil Engineers
Abstract: Laboratory and design procedures have been developed for chemical clarification of dredged material containment area effluents based on results of laboratory and field tests. The design is suitable for normal disposal ...
Designing Treatment Basin Dimensions to Reduce Cost
Publisher: American Society of Civil Engineers
Abstract: A simple procedure for designing large, shallow basins to ensure adequate treatment time and reduce their costs is derived and explained. It considers the cost of perimeter and internal (baffle) dikes, the cost of land, ...
Prediction of Effects of Woody Debris Removal on Flow Resistance
Publisher: American Society of Civil Engineers
Abstract: A simple technique for predicting the Darcy-Weisbach friction factor for river channels with varying amounts of large woody debris was developed. First, debris density is determined based on measurement or visual estimation ...
Local Scour Associated with Angled Spur Dikes
Publisher: American Society of Civil Engineers
Abstract: A series of experiments were conducted in which the volume of the scour hole associated with model spur dikes was measured in a laboratory flume under clear-water overtopping flows. Spur dike models were angled at 45, 90, ...
Large Woody Debris Structures for Sand-Bed Channels
Publisher: American Society of Civil Engineers
Abstract: Described is a method for channel erosion control and habitat rehabilitation featuring intermittent placement of structures made of large woody debris. This method is expressly tailored to address severe problems typical ...
Residence Time Distributions of Shallow Basins
Publisher: American Society of Civil Engineers
Abstract: An analysis of data from a variety of basins showed that the strongest influence on hydraulic efficiency,
Experiment in Stream Restoration
Publisher: American Society of Civil Engineers
Abstract: Aquatic habitats in a deeply incised sand-bed channel were modified by adding 1,380 t of stone and planting dormant willow posts. Restoration structures (groin extensions and longitudinal toe protection) were designed as ...