Connecting people in a smarter way.

Whether providing traditional or specialized transportation engineering services, Sewall has been leading the industry in innovation and sustainability for more than 140 years.

The requirement to maintain and improve our aging infrastructure is no small task. And those charged with maintaining and expanding our transportation system work constantly with the challenges of regional growth, increasing demand, and limited budgets.

Our Transportation team offers decades of experience and expertise in the study and design of roads, highways, bridges, bike paths, traffic signalization, and traffic impact studies.