Est. 1977
The trusted source for traffic safety.
Interwest has provided high quality traffic safety equipment and signs to the government and highway construction industry for over forty years! From highway signs and safety products, to crash cushions and traffic monitoring equipment, our five regional warehouses and experienced staff are committed to provide you with fast and dependable service.
5
regional locations
2
manufacturing facilities
3M
Certified Sign Fabricator
11
states served
Rooted in the West since 1977
Distribution and Manufacturing.
Interwest is the largest distributor of traffic safety supplies and the largest manufacturer of roadway signage in the Rocky Mountain region. We operate from five regional locations across Utah, Colorado, New Mexico, Arizona, and Nevada, with two of our own manufacturing facilities. Local people, local stock, and the backing of a national network.
Sign Manufacturing
We build the signs we sell. As a 3M Certified Sign Fabricator, Interwest manufactures regulatory, warning, guide, and custom roadway signs to MUTCD standards, in-house and on schedule.
Traffic Control & Work Zone
Drums, cones, barricades, delineators, crash cushions, and attenuators. The hardware that keeps crews and drivers protected, in stock and ready to move.
Intelligent Traffic
Radar speed signs, traffic analyzers, flashing beacons, and road-condition sensors. Smarter tools for measuring and managing how traffic actually behaves.
Pavement & Safety
Marking paint, tape, beads, detectable warning mats, and the personal protective equipment that keeps your people safe on site.
Who we serve
Built for the people who build the roads
Whether you're a state DOT managing hundreds of miles of highway or a general contractor gearing up for your next road project, we've got the equipment and expertise to keep your job site safe and compliant. We work with municipalities, school districts, airports, law enforcement, utility companies, and private developers across the country.
Rental Equipment
Need it for the season, not forever?
Variable message boards, portable traffic signals, arrow boards, and truck-mounted attenuators, available to rent for the length of your project.
Contract Purchasing with Sourcewell​
Skip the RFP. Buy on contract.
Interwest is an awarded Sourcewell supplier, which lets eligible agencies purchase competitively bid, audit-ready pricing without running their own solicitation.
