Over 50 years of highway and bridge design excellence

Over the years, CHA has been nationally recognized for our role in designing some of America's most scenic highways. Our founder, John Clarkeson, advanced the idea that if our highways could be more than functional, they could be beautiful as well.

Pioneering the design of context-sensitive solutions

We are proud of our award-winning ability to create transportation solutions that are responsive to environmental and social settings while applying progressive yet proven engineering techniques.

Providing unparalleled knowledge of the process

Having interacted with hundreds of communities, departments of transportation, permitting agencies, and transportation authorities, CHA's engineers and planners know how to see your project smoothly through every stage of the process... from preliminary planning through final design and construction.