General Contracting

From our beginnings as a small northwest construction company back in the 1950's, Tri-State Construction, Inc., has become one of the most prominent general contracting firms in the region.

Tri-State is a leader in highway and heavy construction, earthwork, landfill and utility construction, with a reputation for quality and value that stretches from Alaska to Hawaii.

We earned our reputation by responding to our clients' needs and maintaining a strong work ethic, while staying abreast of the very latest construction technologies and methods.

Tri-State has worked on projects of every imaginable size and type, from underground utilities and environmental landfills, to site work and road construction not to mention in every imaginable climate. This scope of experience enables us to serve a broad range of clientele, from municipalities, highway departments, water and sewer districts, to private industry.

Today we remain dedicated to the ideals which brought us here: pride in workmanship, client satisfaction, and environmental sensitivity.

Above: Construction of MSE wall at Sea-Tac Airport 3rd runway project.

Below: About 200,000 square feet of mechanically stabilized retaining walls, supposedly the largest MSE wall in North America

“An Equal Opportunity Employer”