Qualitative evaluation of rock weir field performance and failure mechanisms

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Abstract

River spanning loose-rock structures provide sufficient head for irrigation diversion, permit fish passage over barriers, protect banks, stabilize degrading channels, activate side channels, reconnect floodplains, and create in-channel habitat. These structures are called by a variety of names including rock weirs, alphabet (U-, A-, V-, W-) weirs, Jhooks, and rock ramps. These structures share the common characteristics of:

  1. Loose rock construction materials (individually placed or dumped rocks with little or no concrete);
  2. Extents spanning the width of the river channel; and
  3. An abrupt change in the water surface elevation at low flows.

Additional publication details

Publication type Report
Publication Subtype Federal Government Series
Title Qualitative evaluation of rock weir field performance and failure mechanisms
Year Published 2007
Language English
Publisher Bureau of Reclamation
Publisher location Denver, CO
Contributing office(s) Fort Collins Science Center
Description vii, 37 p.