Virginia Ecological Services
Northeast Region

Crossvane Photo Full Size

A cross-vane (2-7% slope) has a vane on each side which covers 1/3 of the bankfull width and the invert portion covers the middle 1/3. They are commonly used for grade-control and to reduce nearbank stress by redirecting flow through the center of the channel. It can also considered a habitat improvement structure.

For more information visit: The Cross-vane, W-weir and J-hook Vane Structures... Their Description, Design and application for Stream Stabilization and River Restoration by D.L. Rosgen.

Photo of crossvane structure used in stream restoration project
Crossvane structure used in stream restoration project
Credit: USFWS

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Last updated: December 6, 2012
All images by FWS unless otherwise noted.