Segmental Lining Design for the Hampton Roads Bridge-Tunnel - NAT2024

The Hampton Roads Bridge-Tunnel (HRBT) Expansion widens the existing I-64 four-lane bridge-tunnel corridor to eight lanes through construction of two parallel tunnels, interstate widening, and bridge expansions. The design-build contract was awarded to Hampton Roads Connector Partners with HDR and Mott MacDonald retained as lead designers in a Design Joint Venture. This paper will highlight some of the 􀁎e􀁜 challenges related to the design of the twin bored tunnels from spaceproo􀂿ng, tunnel enabling wor􀁎s, segmental lining design and durability considerations.