Trutta Environmental Solutions

Streambank Erosion Susceptibility

The condition of the streambank is an indicator of the health of the stream and are common projects for us. Streambank condition reflects the stability of the streambank to the erosive forces of water (streambanks in good condition are less likely to erode and fall into the stream than ones in poor condition). The classification of Streambank Erosion Susceptibility considers streambank cover, height, slope, soil, and riparian condition to arrive at the potential for erosion at high flows.

The visual classification of river bank condition from the HDSS video has proven to be both accurate (able to differentiate good and poor areas) and efficient (rapidly accomplish the task). Research has shown that the video classification of streambank condition results in a similar classification as the much more time intensive Bank Erosion Susceptibility Index (BEHI). Our single-viewing, bank condition analysis consists of 5 bank condition levels with 1 being the best and 5 being the worst.

An example of a Bank Stability Classification system. These images are from the HDSS Kayak System.



To view some of our projects that have delineated streambank erosion susceptibility, follow these links:

Application of the Bank Erosion Susceptibility Index (BESI): Bear Creek, Alabama

Bank Condition Analysis for Prioritization: Paint Rock River, Alabama

Baseline Condition Survey: Weogufka Creek, Alabama

Contour Generation to Support Calculation of Exposed Snail Habitat: Coosa River, Alabama

Dam Removal Monitoring: Big Canoe Creek, Alabama

Habitat Assessment and Mitigation Accounting: Ala Wai Watershed, Hawaii

High Definition Stream Survey of the  Harpeth River, TN

High Definition Stream Survey: Choccolocco and Cheaha Creek, Alabama

High-Definition Stream Survey  of the Caney Fork River, TN

High-Definition Stream Survey  of the Falling Water River, TN

Potential Infrastructure Impacts and Mitigation: Turkey Creek, Alabama

Stream Condition Assessment: Timber Run, Maryland