The I-64 Hampton Roads Bridge Tunnel (HRBT) in south-eastern Virginia has long been one of the most congested corridors in the area. The existing facility comprises two 2-lane immersed tube tunnels on artificial islands, with trestles leading to the shore. The tunnels opened in 1957 (westbound lanes) and 1976 (eastbound lanes) and are approximately 2.2km in length. In summer, the existing road is used by some 100,000 vehicles per day, causing tailbacks of up to 8km on the approach to the bridge.
This new project aims to relieve congestion in this busy corridor by building wider lanes and new tunnels.