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Facts

5 Different Types of Tunnel Boring Machines (TBMs)

Tunnel Insider -
Tunnel Boring Machines aren’t all the same, they have different designs meant to meet specific needs depending on the type of tunneling being done....
Facts

Tunnel Insider’s top 5 movies featuring tunnels

Tunnel Insider -
Though Tunnel Insider has mostly featured stories that focus on tunnels that are used for transportation, today we wanted to take a new approach...
Fun

John had 2 quarters, 4 dimes, 3 nickels and 2 pennies (riddle)

Tunnel Insider -
John went to the hardware store to buy a strip of LEDs to light-up a small tunneling project he’s working on. He had 2 quarters,...
Facts

How Does a Tunnel Boring Machine (TBM) Work?

Tunnel Insider -
It's widely known that the construction of tunnels is complex. Though tunnels are becoming more common in transportation, most of us undermine the engineering...
Fun

A Tunnel Boring Machine and a Crane (Riddle)

Tunnel Insider -
A Tunnel Boring Machine (TBM) and a crane together cost $1,100,000. The TBM costs $1,000,000 more than the crane. How much does the crane cost? Many people...
Facts

Are Tunnels the Future of Public Transportation?

Tunnel Insider -
Lately, more and more news outlets and websites have been covering stories about how tunnels could play a significant role in the future of...
Facts

The covert history of the underground tunnels in Downtown Los Angeles

Tunnel Insider -
Downtown Los Angeles is well known for landmarks such as the Walt Disney Concert Hall, the Bradbury building, the Staples Center and the Dodger...

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