Award-Winning Civil Engineering Experts

Innovative Green Storm Drainage Solutions

Road Safety and Accessibility Improvements

A Collaborative Approach to Site Design

CM Design Group, LLC is a civil engineering firm dedicated to providing the highest quality transportation, storm drainage, and site design services for our clients. Catherine Mirkin brings over 34 years' experience in the field, and our growing team delivers innovative, cost-effective solutions to communities throughout the Puget Sound area.

Improving urban road safety and accessibility through design, including bicycle lanes, pedestrian trails, and ADA curb ramps.

Expertise in storm drainage solutions including biofiltration facilities, pervious pavement, ponds and water quality facilities.

Civil engineering site design services bringing a collaborative approach to grading, drainage, utility and right-of-way improvements.


CM Design Group has earned its reputation as a responsive, collaborative, innovative civil engineering firm that delivers high quality at a reasonable cost. Our portfolio illustrates some of our many projects in the greater Seattle area.


CM Design Group is a growing, collaborative team of design professionals, working together to support each other and the community. Learn more about opportunities to develop your skills and make valuable contributions as a member of our firm.