
Traffic Engineering Services
ETRC, LLC offers expert consulting in traffic, transportation, and pavement management services
Consulting Expertise
Providing transportation consulting and traffic engineering services in Oregon, Washington, and California regions since 1988.


Expert Witness Services
Acting as an expert witness, ETRC, LLC delivers critical insights in transportation engineering cases, ranging from poor design to improper and deficient signing and marking, etc. in Oregon, Washington, Alaska, New Mexico, and a few other states.
Working with private properties and home owner associations for better pavement management ensuring durability and efficiency tailored to regional requirements, mostly in Oregon and Washington.
Pavement Management





ETRC provided exceptional traffic engineering services that significantly improved our project in Portland, Oregon.
Well represented in Court Testimonies.
★★★★★
★★★★★
Providing transportation and roadway engineering services since 1988.
etrcllc@yahoo.com
etrcllc@gmail.com
503-888-7553
503-567-6868 (msg)
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Ready to talk when you are.
Ask for Massoud...
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or just reach us at: contact@etrcllc.com
Last updated: 9-12-2026
