Experts in Water Resource Engineering

Riley Engineering, LLC is a Native American (Navajo) Owned professional engineering firm based out of Tucson, Arizona. We are capable of performing a wide array of civil engineering services and can assist clients through all phases of a project from pre-planning to design to construction.

Our Services

Featured Projects

Empowering Our Clients To Be Good Stewards of Our Water Resources
Helping Our Clients Reclaim Minded Land by Designing robust drainage infrastructure
Helping Our Clients To Be Good Neighbors and Protecting the Environment with Engineering Design.

What Our Clients Have To Say

We enjoy working with all our clients and providing our services to benefit their respective needs.

“Ronson and his group at Riley Engineering did a great job designing stormwater controls to prevent stormwater runoff from a rock dump impacting a stormwater run on channel at the base of the dump. His group was professional, courteous, and got the job done on time.”
Jamie Environmental Manager, Asarco LLC
“….Town SWU staff are very pleased with final product based on our own review of the document as well as the comments received from our SME reviewers. A project well done!”
John Project Manager - Town of Oro Valley Stormwater Utility
“Great team to work with. Highly recommended.”
David Environmental Manager, Hudbay Minerals – Rosemont Copper Company
“From start to finish, working with Riley Engineering was pleasurable. I like my contractors to not only keep me quickly informed when they identify problems/obstacles – – but to also proposed a solution for that problem. Riley Engineering was creative and forward thinking at every step in the project.”
Steven Principal - Owner, Acuity Environmental Solutions, LLC

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