OSSH 24 DESIGN
Hampton Roads Bridge-Tunnel Expansion (HRBT)
SUMMARY
AASHTO LTS-6 ANSI/AISC 360-16
ASCE 7-16 IBC 2021
The I-64 Roads Bridge-Tunnel in southeastern Virginia, between the cities of Hampton and Norfolk, has long been one of the most congested corridors of the region. The existing 3.5-mile facility consists of two, 2-lane immersed tube tunnels on artificial islands with trestle bridges to shore. These tunnels opened in 1957 (current westbound lanes) and 1976 (eastbound lanes) and are approximately 7,500 feet long.
The Hampton Roads Bridge-Tunnel (HRBT) Expansion Project will ease this congestion by widening the 4-lane segments of the I-64 corridor in the cities of Hampton and Norfolk.
As part of the Hampton Roads Bridge Tunnel Project, Hampton Roads Connector Partners have asked AZIERTA to conduct a structural design study for the proposed Overhead Sign Structure 24. The basic scope of the Project consists of the validation of the support structure for the proposed Overhead Sign Structure 24, shared by HRCP to AZIERTA.