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Research Project:
Engineering Measures for Rehabilitation of Flood Control Structures and Channels
Location:
Hydraulic Engineering Research
Project Number: 6217-13000-007-00
Project Type:
Appropriated
Start Date: Jan 19, 2002
End Date: Jan 18, 2007
Objective:
Improve understanding of the erosion processes of earth spillways, embankments, and channels subjected to extreme flood conditions. Develop predictive tools for use in evaluating the performance of embankment dams and related structures subjected to hydraulic attack in excess of design conditions. Assist NRCS in implementing tools and developing criteria for engineering practices related to stabilizing streambeds, stream banks, and sediments, and/or delay embankment breach.
Approach:
Large-scale physical models will be used to evaluate and develop key relationships related to earthen spillway and embankment erosion. Small-scale physical models will be used for erosion and water control structure studies. Data and relationships from physical models and from the literature will be used in the development of predictive tools of the embankment breach process. This will include determination of the extent of overtopping that may be sustained by a vegetated earth embankment without resulting in breach, and quantification of the processes associated with breach such that timing, rate, discharge, and geometry of breach may be predicted. Other ARS scientists and university professors will collaborate with the USDA-ARS-PSWCRL in carrying out research objectives. The results of this research will be incorporated into evaluation tools, software, design criteria, and management practices that will allow the continued service and increased benefit of the nations agricultural watershed flood control infrastructure.
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