The Boring Company published details on the construction of a cross-passage connecting two tunnels beneath Paradise Road and restated current Vegas Loop infrastructure counts.
Vegas Loop isn’t just tunnels! In Vegas, besides 14 tunnels, TBC has built 14 stations (28 by end of year), 12 emergency egresses, 6 cross-passages, and 9 “knockout shafts”.
See below for the construction of a cross-passage connecting “Tunnel-1” and “Tunnel-2” (beneath Paradise Road) to provide access and egress; construction time is ~10 days.
Steps:
- If necessary, treat the ground (typically with grout) between the two tunnels such that it is stable during excavation.
- Brace the Tunnel-1 wall with a steel frame and open up the concrete Tunnel-1 wall within said frame.
- Excavate the dirt between the tunnels, installing steel ribs and wood lagging to maintain a safe roof until Tunnel-2 is exposed. This is a slow process of 10 feet per day.
- Install waterproofing and rebar, the latter which anchors into both Tunnels 1 and 2 (see pic)
- Install solid steel liner plate (see pic)
- Pour high-strength concrete around the liner plate, reinforced with the rebar from Step 4
- Open up Tunnel-2, finalizing the connection
Finally, the cross-passage is built out with a walking surface, ventilation, fire suppression valves, fire-rated doors, safety equipment/sensors, lighting, and cameras.
— @boringcompany
What was announced
- Current totals stated: 14 tunnels, 14 stations (with 28 stations by end of year), 12 emergency egresses, 6 cross-passages, and 9 knockout shafts.
- Detailed construction sequence for a cross-passage connecting Tunnel-1 and Tunnel-2 beneath Paradise Road.
- Stated construction time for the cross-passage is approximately 10 days.
- The finished cross-passage includes a walking surface, ventilation, fire suppression valves, fire-rated doors, safety equipment/sensors, lighting, and cameras.
Context
The Vegas Loop is The Boring Company’s operational and expanding point-to-point underground transportation system in Las Vegas. The company has previously stated plans to reach 28 operational stations by the end of 2026 and has received entitlements for a larger network.
Limits of this report
This report contains only the details stated in the source post from @boringcompany. It does not include additional progress metrics, exact locations beyond the Paradise Road reference, timelines for remaining stations, or information from secondary reporting.