TSEGI WASH CAPSTONE PROJECT
Problem:
In Nitsin Canyon a 23 foot high by 30 foot wide headcut has developed. A headcut , also known as a knickpoint, is the abrupt change in channel elevation. Headcuts can range from a few inches to many feet. As seen in the photo to the right, this particular headcut is of a large variety. This headcut needs to be stabilized because as the soil erodes farther back, more sediment is carried north in water to the Colorado River and is deposited in Lake Powell. The soil that is eroded away exposes ancient Native American pottery and also human remains. The site is located nearby to Inscription House, which is an ancient Native American dwelling. Below are pictures of exposed pottery and Inscription House.
Goal:
The goal of this project is to stabilize the headcut to prevent further soil erosion. Native vegetation and rock armouring will be used to design a cost efficient method of acheiving this goal.
