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River Spanning Rock Structures Research

W-Weirs at Pagosa Springs, CO

W-Weir at Pagosa Springs, CO

Restoration of river systems to higher levels of function utilize a diverse array of techiniques. One category of techniques includes instream structures.  The interactions between restoration structures and a river network, or vice versa, are not always understood.  Differences between expected and actual performance can vary widely and may result in unintended consequences includind damage to the morphologic imbalances, ecological impairment, or failure meet objectives, or the loss of the structure.

The river spanning rock structures design guidlines research project improves the understanding of physical mechanisms in order to better meet project objectives and reduce maintenance requirements.

Research products will include design and performance parameters for a wide array of structures including:

  • Weirs, Roughned Channels, Boulder Clusters, Rock Ramps, Check Dams, etc.

The end product will consist of design guidlines and tools for achiving specific hydraulic and ecologic performance objectives in a sustainable manner.

River Spanning Rock Structures Site Map

The research project take a multi-faceted approach towards developing a deeper understanding of rivers and instream structures including:



For more information on Reclamation's River Engineering Services, contact the Group Manager, Tim Randle (303)445-2557.