Hampton Roads Bridge Tunnel Expansion

Location: Hampton, Virginia

Owner: Virginia DOT

Completed: On-going

Hampton Roads Bridge-Tunnel (HRBT) Expansion is the largest construction project in Virginia’s history with a total project budget of $3.8 billion. The existing I-64 HRBT is a 3.5-mile facility with two 2-lane immersed-tube tunnels connecting artificial islands, with trestle bridges to shore. Twin two-lane, 46-ft diameter bored-tunnels will be installed west of the existing eastbound tunnel; with current eastbound and westbound tunnels accommodating all westbound traffic. As part of the Owner’s Engineer team, we are currently performing a review of the project Geotechnical Data Report (GDR) and the Geotechnical Baseline Report (GBR) for their adequacy. Reliance is also providing a review of the time frames and reasonableness of the construction schedule for the tunnel-related construction activities and the development of an independent project risk registry.