Submerged Vane Projects for Bank Stabilization and Sedimentation Management

by Robert J. DeWitt, River Engineering Intl Inc, Iowa City, United States,
A. Jacob Odgaard, River Engineering Intl Inc, Iowa City, United States,



Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract:

Submerged vanes are small flow training devices placed in a stream to eliminate or create secondary currents to direct sediment in a controlled fashion. In recent years submerged vanes have been used as an alternative to traditional methods for bank stabilization, such as armoring. In addition, submerged vanes are being utilized to control or eliminate unwanted sediment deposition, such as may occur in bridge waterways or in front of water intake structures. During the past few years, several submerged vane installations have been installed, some using straight vanes and some using a curved vane called the Iowa Vane. Experience with these installations has provided the opportunity to improve design procedures, vane shape, vane materials and construction procedures, all of which will enhance future installations. This paper reviews two of these installations, with emphasis on lessons learned.

Subject Headings: Vanes | River bank stabilization | Submerging | Sediment | Sediment transport | Water intakes | Training | Iowa | United States

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