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Showing 1 to 9 of 9 for “"in-stream structures"”.
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Improving Design Guidance for In-Stream Structures Used in Stream Restoration
Vane-type in-stream structures and step pool storm conveyance (SPSC) are more ecologically friendly alternatives to traditional stream channel stabilization and stormwater conveyance techniques. Vane-type structures have been widely accepted as elements of stream restoration projects and are …
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Complementary Effects of In-Stream Structures and Inset Floodplains on Solute Retention
The pollution of streams and rivers is a growing concern, and environmental guidance increasingly suggests stream restoration to improve water quality. �Solute retention in off channel storage zones such as hyporheic zones and floodplains is typically necessary for significant reaction to occur. …
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Experimental study of fish response to turbulent flow fields generated by in-stream structures
The influence of hydrodynamics on habitat choice and migration path of fish is of great interest for biologists and engineers, especially when considering the impact of in-stream structures like dams or fish passages during stream restoration projects. Research is needed in both laboratory and …
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Analysis of riprap design methods using predictive equations for maximum and average velocities at the tips of transverse in-stream structures
Transverse in-stream structures are used to enhance navigation, improve flood control, and reduce stream bank erosion. These structures are defined as elongated obstructions having one end along the bank of a channel and the other projecting into the channel center and offer protection of erodible …
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Development of Design Guidelines for In-Stream Flow Control Structures
The use of in-stream flow control structures for channel stabilization has become increasingly popular due to its potential cost-effectiveness and ecological benefits. These structures help to protect the bank from erosion and lateral migration. However, a large number of these projects fail due to …
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The effect of turbulence on survival, dispersal, and swimming behavior of grass carp eggs and larvae
… urgent need to monitor and control the spread of invasive grass carp (Ctenopharyngodon idella) in North America. Grass carp are reproducing in tributaries to Lake Erie and control efforts targeting reproduction are greatly needed. Current strategies for their control and removal are costly and …
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Comparing Reach Scale Hyporheic Exchange and Denitrification Induced by Instream Restoration Structures and Natural Streambed Morphology
… can lead to problems such as eutrophication. Stream restoration is one method by which improvements in water quality may be attempted. One strategy is increasing hyporheic zone flow at baseflow by addition of instream structures. The hyporheic zone can be an area of increased biogeochemical …
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Cumulative Impacts of Watershed-Scale Hyporheic Stream Restoration on Nitrate Loading to Downstream Waterbodies
… that must be solved at watershed scales, and stream restoration is increasingly implemented as a solution. Yet few studies evaluate the cumulative effects of multiple individual restoration projects on watershed-scale nutrient loading. We constructed a HEC-RAS model of stream restoration …
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Evaluating the Long-Term Morphological Response of a Headwater Stream to Three Restoration Techniques
The stream restoration industry has been growing since the addition and modification of Section 404 to the Clean Water Act. Many projects follow the guidelines of Natural Channel Design and use in-stream structures to stabilize stream channels. Post-project monitoring rarely exceeds 3-5 years, and …