Chimney Hollow Reservoir

New reservoir and dam west of Loveland, Colorado, USA. The pin is on the Chimney Hollow valley the reservoir fills.

At a glance

SourceAuthorRoleIn one line
Why Is Colorado Building a 22 MILLION TON Rock Wall in the Rocky Mountains?Aaron WittsubjectAmerica’s largest new dam project in decades, toured from crest to quarry.

Why Is Colorado Building a 22 MILLION TON Rock Wall in the Rocky Mountains? — Aaron Witt (2025)

Source: Readwise highlight

The Chimney Hollow Reservoir is a collaboration between 12 northeastern Colorado water providers to provide consistent and clean water year round for about 825,000 people.

  • Role: subject
  • In the video: The whole video tours the site: a 350-foot earth-and-rock dam with an asphalt core laid in nine-inch lifts by a Swiss machine, a 2,000-foot emergency spillway, an on-site quarry that supplied about 22 million tons of rock, and a valve house that fills and drains the reservoir.
  • Why it matters: The subject of the video; storage here lets Front Range communities draw West Slope water at a steady rate.