Dewberry To Provide QA For $3.8B Hampton Roads Bridge-Tunnel Project

​Fairfax-based engineering consulting firm Dewberry announced Friday it will provide quality assurance services for the entire $3.8 billion Hampton Roads Bridge-Tunnel (HRBT) project — the largest construction project in Virginia and the Virginia Department of Transportation’s (VDOT) history.

A contract amount was not disclosed.

The Interstate 64 HRBT is currently 3.5 miles long and has two-lane tunnels which connect artificial islands with trestle bridges to shore. The expansion is expected to take five years and will include twin two-lane bored tunnels, which will increase capacity for traffic. Tunnel boring machines are being used for only the fourth time in the nation to complete the project.

“This design-build project requires a robust quality program and our team, working in collaboration with the tunnel contractor and VDOT, will help deliver a successful construction project,” Dave Mahoney, Dewberry executive vice president, said in a statement. “The two new tunnels and bridge/roadway improvements will have a huge impact on traffic safety and ease the congestion in such a populated area of Virginia.”