Mark Thomas

Wed Jan 8 2025

Mark Thomas provides transportation planning, civil and structures engineering, construction management, surveying, and landscape architectural services that have set the stage for transportation improvement projects. We are known as a premier interchange and highway design firm with an unequaled ability to develop creative solutions, having planned and/or delivered more than 200 projects on Caltrans facilities, totaling more than $15 billion in improvements. We strive to develop ideas and alternatives that other firms might not, and be a true partner with our clients – developing solutions that are supported by the community and decision-makers, are context-sensitive, and are technically sound.

Select project experience:

• I-80/I-680/SR 12 Interchange Complex (Solano County, California)
• SR 12 Jameson Canyon Widening (Solano County, California)
• SR 4 Widening and Interchange Improvements (Contra Costa County, California)
• SR 4 Bypass (Contra Costa County, California)
• I-80/North Texas Street Interchange (Fairfield, California)

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