Coterra is a civil engineering firm that provides design and consulting services to public and private entities. We offer site development and infrastructure solutions.

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COMMUNITY BUILDING

We've delivered civil engineering solutions in Seattle for 24+ years. Check out some of our projects.

INFRASTRUCTURE

We specialize in proactive and responsive solutions that are practical and cost effective.

MEET OUR TEAM

We are a collaborative group of civil engineers based in Phinney Ridge.

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