Effectiveness of submerged vanes for stabilizing streamside bluffs

Journal of Hydraulic Engineering
By: , and 



The effectiveness of submerged vanes for stabilizing streamside bluffs varied over a 10-year monitoring period in a tributary to Lake Superior, United States. Submerged vanes are a river training device used to divert river flows away from eroding banks along meander bends and ultimately hold constant or reverse the direction of lateral migration. At the study site, the relatively steep slope, large substrate size, and flashy flow regime pushed the upper end of the design limitations of submerged vanes. Changes in channel location and morphology due to the vanes were monitored using repeat channel cross-section surveys along a 110-m reach. The vanes experienced 15 floods over the monitoring period. The two most damaging floods happened in the summer and fall of 2005 with annual exceedance probabilities of 7% and 6% respectively. A new data analysis method for rivers, using centroids of cross sections, was useful to track channel migration rapidly and objectively and, along with calculations of changes in bankfull channel size, provide metrics to describe channel change.

Publication type Article
Publication Subtype Journal Article
Title Effectiveness of submerged vanes for stabilizing streamside bluffs
Series title Journal of Hydraulic Engineering
DOI 10.1061/(ASCE)HY.1943-7900.0001834
Volume 147
Issue 2
Year Published 2020
Language English
Publisher ASCE
Contributing office(s) Upper Midwest Water Science Center
Description 14 p.
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