Three unique bio-engineered streambank stabilization treatments that utilize live, rooted vegetation have been proposed to stabilize three distinct reaches of eroding banks on the Lower Henrys Fork of the Snake River near Rexburg, Idaho.
The proposed treatments, designed by Intermountain Aquatics Inc. of Driggs, Idaho
, vary from most conventional bio-engineering methods in that they rely solely on native plants, rather than rock to stabilize the toe of the slope. Construction was completed on two reaches in July 2010, with the third reach planned for the summer of 2011.
The objective of my study, which is titled Forces On Experimental Bio-Engineered Streambank Stabilization Treatments With Implications For Survivability On The Lower Henrys Fork River
, is to measure and characterize the forces imparted on the treatments by boat wake waves, wind generated waves, and streamflow within the first year after installation.
The effectiveness of each streambank stabilization treatment to resist these forces, slowing the rate of bank erosion will be assessed jointly by metrics I am evaluating, as well as those being monitored by Intermountain Aquatics Inc.