Briana Li-Vidal

     TUCSON, ARIZ. (April 5, 2021) – Terracon Consulting, Inc. is proud to announce dual honors garnered recently by Senior Staff Geologist Briana Li-Vidal.

Li-Vidal, who has been with the engineering consulting firm for 3 years, earned the title of Registered Geologist (R.G.) and was honored with Terracon’s 2020 Emerging Leader Award for the Rocky Mountain Division. Li-Vidal transferred to Tucson from Terracon’s Nashville office in 2019.

Li-Vidal’s responsibilities include planning, conducting and overseeing Phase I Environmental Site Assessments (ESAs); Phase II ESAs and Limited Site Investigations which include soil, soil vapor and groundwater investigations and subsequent site remediation; and underground storage tank (UST) removal and permanent closure assessments.

“Briana has been an absolutely fantastic addition to our team,” said Derek D. Koller, Principal, Office and Environmental Department Manager of the Tucson office. “Not only has she earned her Registered Geologist (R.G.) and the Rocky Mountain Division Emerging Leader award since transferring, Briana also championed a Terracon Foundation Grant for the Southern Arizona Research, Science and Engineering Foundation (SARSEF) and has been involved in their What do You Wonder? Program which is aimed at promoting STEM with middle-school girls. I am privileged to get to work with great employee-owners here in Tucson, and it is certainly a privilege to work with Briana.”

A native of Gainesville, Georgia. Li-Vidal was raised in Grand Rapids, Michigan. She received her B.S. in geosciences-geology from Middle Tennessee State University in Murfreesboro, Tennessee and earned her master’s degree in engineering in geological sciences from Cornell University in Ithaca, N.Y.

Li-Vidal is a member of the Southern Arizona Environmental Management Society, SARSEF and volunteers with Agua Clara Reach and Tucson Clean and Beautiful.

Away from the office she enjoys hiking local trails, learning new languages, and playing Ultimate Frisbee.

Terracon’s Tucson office has provided construction materials testing, geotechnical engineering, and environmental services in Southern Arizona for more than 25 years.

Terracon is an employee-owned consulting engineering firm with more than 5,000 employees providing environmental, facilities, geotechnical, and materials services from more than 150 offices with services available in all 50 states.

Terracon ranks 22nd on the Engineering News-Record list of Top 500 Design Firms and is ranked No. 1 in Asbestos and Lead Abatement Design.

To learn more about Terracon visit