Bendway Weir Riprap Sizing Criteria
Publication: Journal of Hydraulic Engineering
Volume 142, Issue 12
Abstract
Bendway weirs are submerged, in-stream rock structures that redirect impinging flow away from outer-banks toward the center of a channel. Riprap weirs are composed of stone and sized using the average channel velocity in conjunction with existing design guidance. A physical model study and field study were conducted to determine the magnitude of the convective velocity that accelerates around the tip or toe of the weir. The ratio of the maximum tip velocity to the average channel velocity (prior to weir installation) was determined to be approximately 1.70. Stone sizing criteria that significantly increase the riprap median size over traditional approaches were presented for consideration.
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Acknowledgments
The investigations presented herein were supported by the Bureau of Reclamation, Albuquerque Area Office, Albuquerque, New Mexico. Overview was provided by the Bureau of Reclamation, Technical Service Center, Denver, Colorado. Special thanks are extended to Mr. Thomas R. Parker for his assistance during these projects.
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Information & Authors
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Published In
Journal of Hydraulic Engineering
Volume 142 • Issue 12 • December 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Jul 22, 2015
Accepted: May 23, 2016
Published online: Jul 26, 2016
Published in print: Dec 1, 2016
Discussion open until: Dec 26, 2016
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