Mary's Milestones Delivering the HRBT twin bored tunnels
Dec 19, 2025 - 28:01
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Mary The Tunnel Boring Machine is heading toward the half-way point of her second HRBT tunneling journey
She recently got a BIG BOOST to help her complete a new twin tunnel. Listen to find out where Mary is Now.
About This Episode
Mary The Tunnel Boring Machine is heading toward the half-way point of her second HRBT tunneling journey is an episode from HRBT Tunnel Talk by Virginia Department of Transportation. She recently got a BIG BOOST to help her complete a new t...
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This episode belongs to HRBT Tunnel Talk.
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Episode Details
Published Mar 11, 2025, 26:17 long, audio available.
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