Flag-Tech Engineering Inc.

An at-grade railway-roadway can pose numerous obstacles to safety and efficient urban activity for the community and travelers. To improve transit efficiency and safety for the community, a grade separated crossing is being considered in place of the existing crossing. A grade separation railway crossing is a height differentiation of both vehicle and railway traffic by adjusting the roadway as an underpass or overpass. As the railway runs through Peach Springs, it primarily affects the community of Hualapai Indian Reservation. The project requires technical work spanning a wide variety of engineering disciplines (structural, geotechnical, hydraulic, traffic).

Left to right: Yiyang Chen, Breanna Smith, Verneon Reed, Yuliang Wang, Jonathan Melendez, Meshal Alotaiby, Alex Goodman.
Photo credit: Yousef Al Aqeel.

Breanna Smith

Civil Engineering Major, Mechanical Engineering Minor

Structural Design

Email: bs667@nau.edu

Alex Goodman

Civil Engineering Major

Geotechnical and Hydrology Analysis

Email: adg72@nau.edu

Verneon Reed

Civil Engineering Major

Hydrology and Hydraulic Analysis

var28@nau.edu

Meshal Alotaiby

Civil Engineering Major

Traffic and Environmental Analysis

mfa87@nau.edu

Jonathan Melendez

Civil Engineering Major

Structural Design

jem369@nau.edu

Yiyang Chen

Civil Engineering Major

Structural Design

yc265@nau.edu

Yuliang Wang

Civil Engineering Major

Structural Design

Email: yw75@nau.edu

John Tingerthal, MSCE, EDD, P.E.

Technical Advisor

Email: john.tingerthal@nau.edu

Kevin Davidson

Hualapai Tribe Planning & Economic Development Director

Email: KDavidson@Hualapai-nsn.gov

Philip Wisely, P.E.

Public Services Director

Email: pwisely@hualapai-nsn.gov