Live Scour Physical Modeling
Field evaluation identified the primary failure mechanisms of rock weir structures to be formation of a scour hole and geotechnical slump of the structure. Scour pools provide habitat diversity, aproach depths for fish passage over barriers, and energy dissipation. Existing scour techniques proved inadequate in predicting the depth and dimensions of scour pools downstream of rock weir structures.
Colorado State University, Engineering Research Center is constructing and testing large scale rock weir structures to determing the hydraulic performance and maximum scour depths for a range of structures under diffferent discharges and bed material sizes. The information will be used to develop hydraulic performance ratings and predict scour pool formation.
For more information on Reclamation's River Engineering Services, contact the Group Manager, Tim Randle (303)445-2557.