We Provide Context-Sensitive Solutions for Public Works Projects

Mark Thomas is one of the West’s leading civil engineering consultants, specializing in transportation infrastructure. We provide comprehensive civil engineering services for a wide range of projects, from local street improvements to major highway and interchange upgrades. Our expertise includes localized widening, gap closures, realignments, intersection upgrades, grade separations, arterial reconstructions, highway widenings, and full interchange design. Whether delivering small-scale improvements or managing complex, multi-jurisdictional corridors, we bring a proven track record of thoughtful, high-quality solutions.
Our team is well-versed in all phases of project delivery, including early planning studies, preliminary engineering, environmental documentation and project approval (PA&ED), and the development of final plans, specifications, and estimates (PS&E). We also support right-of-way coordination, utility relocation, permitting, and construction support, ensuring a smooth path from concept through construction.
Services Include
- Constraints Analysis
- Conceptual Design
- Cost Estimating
- Alternative Analysis
- Geometric Design
- Project Approval Documentation
- Right of Way Engineering
- Final Design
- Design Services During Construction