Inspecting Roberts Tunnel: What it’s like going through a 23-mile concrete tube thousands of feet underground.
By Jay Adams
This is not your typical road trip. Twenty-three miles long and more than 4,000 feet underground, navigating Roberts Tunnel is more like driving a convertible through a car wash in the dark.
And for the Denver Water team that inspects this critical piece of infrastructure, it’s a big task, and not for the faint of heart.
Inspection team (left to right): Nate Soule, Lithos Engineering inspector; Tim Holinka, operations supervisor; Garret Miller, Roberts Tunnel supervisor; Doug Sandrock, safety specialist; Jay Dankowski, mechanic; Erin Gleason, dam safety engineer.
Starting in Summit County, Roberts Tunnel carries water from Dillon Reservoir, under the Continental Divide and into the North Fork of the South Platte River in Park County before heading on to customers in Denver. Completed in 1962, the tunnel took 16 years…
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