Boring through the earth begins once the 500-foot-long boring machine is fully assembled by the end of 2026. It will take 40 workers to crew and cut through 30-35 feet of solid rock per day. It’s a big change from the last tunnel project - done with hand tools more than 100 years ago.

This is cool. The scale of a project like this feels difficult to understand properly. Just assembling the boring machine, wow.