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Tunnel boring machine

Hampton Roads Bridge-Tunnel expansion nears final stages
Sep 29, 2025

Hampton Roads Bridge-Tunnel expansion nears final stages

The $3.9B Hampton Roads Bridge-Tunnel expansion is on track for 2027, with 2,400 workers building tunnels, bridges and support facilities.

HRBT expansion’s first tunnel boring is complete
Apr 17, 2024

HRBT expansion’s first tunnel boring is complete

Mary, the tunnel boring machine that has been paving the way for the expanded Hampton Roads Bridge-Tunnel, hit a milestone Wednesday when she finished the first of twin tunnels that are part of the bridge-tunnel’s expansion. Launched from the HRBT‘s South Island a year ago, the $70 million custom-built tunnel boring machine has been busy — […]

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