The fire-suppression system in the I-70 tunnels is a critical Colorado insurance policy. Here’s why. | VailDaily.com
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The fire-suppression system in the I-70 tunnels is a critical Colorado insurance policy. Here’s why.

Jesse Paul, Colorado Sun
The Eisenhower-Johnson Memorial Tunnels. (Jesse Paul, The Colorado Sun)

If the Eisenhower-Johnson Memorial Tunnels are Colorado’s high country artery, think of its $20 million fire suppression system as the health insurance policy that keeps it pumping.

At the very least, the system is meant to prevent travelers from experiencing something truly heart-stopping, like the 1982 Caldecott Tunnel fire in California that left seven people dead. But more realistically, it’s a way to make sure that traffic keeps flowing along Interstate 70 in the event of a much more likely, and less tragic, vehicle fire.

Completed in 2015, the system reflects the Colorado Department of Transportation’s increased focus on the importance of the pair tunnels that carry growing numbers of people and goods to and from the Western Slope each year. 

“The system is a risk mitigation strategy,” said Stephen Harelson, chief engineer at the Colorado Department of Transportation. “The goal is to preserve human life first, protect the tunnel from long-term damage second.”

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There are typically one or two fires in the tunnels a year. A fire that gets out of control could shut down the highway for hours. 

Read more via The Colorado Sun.

The Colorado Sun is a reader-supported news organization dedicated to covering the people, places and policies that matter in Colorado. Read more, sign up for free newsletters and subscribe at coloradosun.com.


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