Date of Award:

5-2023

Document Type:

Thesis

Degree Name:

Master of Science (MS)

Department:

Civil and Environmental Engineering

Committee Chair(s)

John D. Rice

Committee

John D. Rice

Committee

Brian M. Crookston

Committee

Brady R. Cox

Abstract

The purpose of this research was to investigate infiltration rates of rainwater into a roadside filter strip. The findings of this study were intended to be used by the Utah Department of Transportation in their design of stormwater retention. A testing apparatus was designed and constructed to simulate rainfall and infiltration on an inclined slope during the 80th percentile 24-hour rainstorm event in Utah. The model was used to test six different surface soil configurations at three slope inclinations. Each test was subjected to a simulated storm event of ½ inch of rain over a 2-hour period. The variation in the top 4 inches of soil resulted in the most significant changes to the amount of infiltration, while the slope had little effect on infiltration for the two topsoil materials. The addition of vegetation resulted in increased amounts of infiltration as did the scarifying beneath the topsoil.

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