@repost_10.8: #Repost @aaronwitt Congrats to the @hrbtexpansion and @flatirondragados teams for breaking through on the second tunnel under the Chesapeake Bay in Virginia! — The best part? This is TBM Mary’s SECOND breakthrough! The monster machine dug the first tunnel a few years ago. Following its completion, crews spent six months carefully removing and reassembling Mary to bore in the other direction, ending up where she started her journey. — Pretty high up on the NEAT scale!

𝙍𝙚𝙥𝙤𝙨𝙩 📋

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Monday 08 December 2025 19:08:04 GMT