Digging in to construction of how tunnels are built

There are 570 highway tunnels in the United States just for large roads. Nehemiah Mabry, an engineer and CEO of Stem Media joins "CBS Mornings Plus" to discuss how they get built.

Feb 4, 2025 - 14:00
Digging in to construction of how tunnels are built
There are 570 highway tunnels in the United States just for large roads. Nehemiah Mabry, an engineer and CEO of Stem Media joins "CBS Mornings Plus" to discuss how they get built.

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