Drone view of Boring Company Prufrock machines tunneling in Nashville. Source: The Boring Company / X
The Boring Company posted drone footage on September 7, 2026, of Prufrock-MB1 and Prufrock-MB2 tunneling simultaneously in Nashville, showing both machines cutting through hard limestone while spoil rides a continuous conveyor toward a rock pit.
“Drone footage of Prufrock-MB1 and Prufrock-MB2 tunneling simultaneously in Nashville,” the company wrote. “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.”
Running two named Prufrock machines at once is a concrete construction update for Nashville after the airport authority approved a $34 million tunnel deal earlier in 2026 to shuttle passengers between the main terminal and a remote parking garage in Tesla vehicles. The new clip does not spell out which Music City Loop segment is on camera, but it does put hard numbers on the rock (more than 10,000 psi) and on the dual-belt spoil path that keeps both diggers fed into the same pit.
That fits the company’s broader push to dig infrastructure on shorter timelines than conventional tunneling, the same theme it has used while expanding the Vegas Loop toward airport connector tunnels that executives say could multiply ridership. Nashville remains one of the firm’s active U.S. builds alongside Las Vegas work and other municipal loops still in planning.
Whether the twin Prufrock run is for the airport garage link or a wider Music City Loop stretch, the September 7 drone drop is the clearest official look yet at simultaneous boring in Tennessee rock, with the machines, the limestone rating, and the stacked conveyors all named in one post.
