Boring Company's Nashville tunnel machines work simultaneously
Drone footage shows Prufrock-MB1 and MB2 boring through limestone while conveyor systems transport rock to a pit.

The Boring Company shared drone footage of two tunnel boring machines operating at the same time in Nashville, with both Prufrock-MB1 and Prufrock-MB2 actively excavating limestone. According to the post, the machines are working through "10,000+ psi limestone," with material from each boring machine transported via continuous conveyor belts.
The excavated rock travels through vertically stacked side belts that route the material to a rock pit, shown in the drone footage. The simultaneous operation of both machines represents progress on the Nashville tunnel project, though specific details about the tunnel's purpose, timeline, or full scope were not provided in the update.
"Drone footage of Prufrock-MB1 and Prufrock-MB2 tunneling simultaneously in Nashville. The 10,000+ psi limestone is transported from each boring machine via a continuous conveyor belt, completing its journey to the rock pit via the 2 vertically stacked side belts seen below."— X · @boringcompany