Date of Award

5-2024

Degree Type

Thesis

Degree Name

Departmental Honors

Department

Civil and Environmental Engineering

Abstract

Logan, Utah is divided by US Highway 89/91, which bisects much of the city. This makes it difficult to pass to the other side without a vehicle. A pedestrian crossing has been proposed to connect the eastern and western sides of Logan without impacting traffic flow. The Environmental Impact Statement aims to look at reasonable alternatives and identify many resources that will be affected by its implementation. Four main alternatives were considered: an underpass, an overpass with an elevator, an overpass with a ramp, and the no-change alternative to be used as a baseline alternative. The underpass is the preferred alternative based on sustainability, cost, maintenance, and pedestrian traffic usage. Some of the major negative impacts of the pedestrian crossing include right-of-way acquisition, hydrology impacts, water quality, and noise-and-vibration impacts. Some of the major positive impacts are increased pedestrian facilities and increased socioeconomic potential. These resources were then analyzed for cumulative impacts over time and space to show how they will impact the future of the project site and beyond. After a thorough analysis, the underpass is still the best alternative for the location.

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Faculty Mentor

Austin Ball

Departmental Honors Advisor

John Rice