The Paper Trail Points to Jupiter Drive as The Boring Company’s Next Nashville Launch Site

The Boring Company has not said where Prufrock-MB3 will begin digging when Nashville’s third tunnel boring machine launches later this month.

But the company may have already left the answer in its own public records.

A LOOP Nashville review of company environmental documents, property records, utility filings and previous construction activity points strongly to 200 Jupiter Drive, a roughly 0.84-acre property near Murfreesboro Pike, Briley Parkway and Nashville International Airport.

The most significant evidence comes directly from The Boring Company.

In an environmental assessment prepared for the Music City Loop, TBC said it had “currently established two TBM launch sites” in Nashville. One was the now-active Lot 16 construction site near the Tennessee State Capitol.

The other was 200 Jupiter Drive.

The document said the Jupiter Drive launch site was still in the “design, permitting, and early construction phase” at the time and therefore was not included in the assessment’s detailed environmental review.

That designation takes on new significance after TBC announced October 1 that Prufrock-MB3 will launch from a “new site” in late October.

The company did not identify the location.

A second two-machine launch site is taking shape

TBC's latest construction update provides unusually specific details about the unidentified site.

According to the company, excavation of the launch pit is already underway. TBC says it coordinated with Metro Water Services to obtain the necessary excavation permits and is working with Nashville Electric Service to provide enough electrical capacity to operate two tunnel boring machines plus their support equipment.

The company says that electrical infrastructure will eventually also support the operational tunnel.

The site is also being equipped with office trailers, a Safety Center, an Operations Control Center, chilled water, compressed air, networking, cameras and other tunneling-critical infrastructure.

TBC says all permits and approvals required before tunneling have been obtained.

That description closely resembles the company’s first Nashville launch site at Lot 16.

The environmental assessment describes Lot 16 as supporting two TBMs and being equipped with office trailers, a Safety Center, an Operations Control Center, electrical power, lighting, chilled water, compressed air, cameras, security fencing and other systems.

TBC now says it is supporting Prufrock-MB1 and Prufrock-MB2 simultaneously from a construction footprint of less than one acre.

The new MB3 site appears designed around the same basic model.

And more than a year before the MB3 announcement, TBC had already designated Jupiter Drive as its second Nashville TBM launch site.

The Jupiter Drive paper trail began in 2025

The history of the property provides another important piece of the puzzle.

On September 23, 2025, FJ Pads LLC, a company affiliated with The Boring Company, purchased 200 Jupiter Drive for $937,812, according to Davidson County property records.

The parcel is approximately 0.84 acre and sits just off Murfreesboro Pike near Briley Parkway and BNA.

But TBC's interest in the site began before the purchase was completed.

Tennessee 811 records previously reviewed by State Affairs show that The Boring Company submitted a utility-location request for the property on September 9, 2025.

The work was described as grading, and the request called for utilities to be marked across the property. Metro Water and Sewer, Nashville Electric Service, telecommunications and other utility infrastructure were included in the locate process.

Additional Tennessee 811 activity later reviewed by WSMV showed work involving fencing, soil testing and grading at the property.

The sequence is notable: TBC investigated utilities at Jupiter Drive, acquired the property, performed preliminary site work and then identified the location in its environmental assessment as a TBM launch site already moving through design, permitting and early construction.

Now, roughly a year later, the company says a second fully equipped launch site is nearing completion for MB3.

The small site is not necessarily too small

On a map, 200 Jupiter Drive may not look like an obvious location for a major tunneling operation.

The property is less than one acre.

But TBC's existing Nashville operation demonstrates that a site that size can support substantial underground construction.

In its October update, the company said its Lot 16 site is simultaneously supporting two active TBMs, trucking, inventory, tunnel-support operations and office trailers from a footprint of less than one acre.

Jupiter Drive is approximately 0.84 acre.

That makes the site physically consistent with the compact construction model TBC is already using downtown.

Its location also fits the Airport Alignment

Jupiter Drive also sits directly along the part of Nashville where TBC has planned its Airport Alignment.

The company says that route begins near the State Capitol, follows Rosa L. Parks Boulevard and Eighth Avenue South, continues southeast along Lafayette Street and Murfreesboro Pike, then follows Donelson Pike toward Nashville International Airport.

TBC's environmental materials also map the alignment through the immediate Jupiter Drive area.

A launch site near the airport could allow the company to build the corridor from another point along the alignment rather than relying entirely on tunnel machines launched from downtown.

Whether MB3 would tunnel toward downtown, toward the airport or serve another portion of the network has not been publicly disclosed.

A site capable of supporting MB4

There is another clue in TBC's October announcement.

The company is not merely installing enough electrical capacity for MB3.

It says the new site will have enough power for two TBMs.

At the same time, TBC says Prufrock-MB4 is already being built and that the Nashville team is pushing to have four tunnel boring machines underground before the end of the year.

That raises the possibility that the new site is being configured for MB3 and MB4 together, just as Lot 16 currently supports MB1 and MB2.

TBC has not explicitly said MB4 will launch from the same property, so that remains an inference.

But a second dual-machine launch compound would give the Music City Loop two major tunneling bases capable of advancing multiple underground headings at the same time.

Other Boring Company properties remain in play

Jupiter Drive is not the only TBC-linked property along Murfreesboro Pike.

In September, FJ Pads paid $7 million for nearly four acres at 302 Murfreesboro Pike, a former auto dealership property considerably closer to downtown.

The company has not disclosed how that site will be used.

FJ Pads also acquired another approximately 0.8-acre vacant parcel associated with the 728 Murfreesboro Pike area in August for $1.25 million, according to public real-estate transaction records.

And in 2025, Tennessee 811 records showed TBC investigating another site near Murfreesboro Pike and Pavilion Boulevard through an exploratory pit for geotechnical observation and study.

Any of those properties could eventually play a role in tunneling, stations, operations or other parts of the Music City Loop network.

But none currently has the same documentary record as Jupiter Drive.

The distinction is significant.

TBC explored the Pavilion site.

It owns several properties along the alignment.

But its own environmental assessment specifically called 200 Jupiter Drive a TBM launch site.

One important piece is still missing

The available evidence makes Jupiter Drive the strongest known candidate for MB3's launch.

It does not yet make the identification definitive.

LOOP Nashville has not located a current public permit that explicitly identifies 200 Jupiter Drive as the launch location for Prufrock-MB3, and The Boring Company has not publicly named the site in its 2026 construction updates.

TBC says Metro Water Services issued the permits required for the current launch-pit excavation, but the company's October update does not provide permit numbers or an address.

The permitting picture has also changed since Jupiter Drive was first acquired.

Tennessee lawmakers created a new regulatory framework for qualifying subterranean transportation projects earlier this year, shifting significant subsurface permitting and oversight responsibilities to the state while leaving other utility and surface-related approvals with local agencies.

That can leave the public record spread among multiple agencies rather than concentrated in a single Metro building-permit file.

For now, the evidence stops just short of direct confirmation.

But the paper trail is unusually specific.

More than a year before MB3's scheduled launch, The Boring Company identified 200 Jupiter Drive as its second Nashville TBM launch site.

The company conducted utility and site-preparation work there.

The property sits along the airport corridor.

And TBC is now completing a second compact, two-machine launch facility somewhere in Nashville with nearly the same infrastructure used at Lot 16.

Unless another site has replaced it in TBC's plans, Jupiter Drive appears positioned to become the next major construction front for the Music City Loop.