News

Spillway at Lake Granby.

Why is Chimney Hollow Reservoir Needed?

The Chimney Hollow Reservoir Project is part of a long-term water supply plan that is critical to support a number of Northern Colorado’s vibrant and growing and communities.

Quality insurance inspector overseeing work on the main dam at Chimney Hollow.

On-Site Quality Programs Provide Successful Checks and Balances  

With many Chimney Hollow Reservoir components happening at once, a full-time team is dedicated to project quality.

Excavation work for the valve house.

Valve House Excavation Work Started 

Excavation work for the future valve house at Chimney Hollow Reservoir is well underway as crews have removed approximately 72,000 cubic yards of material out of a planned 100,000 cubic yards.

Celebrating the Women of Chimney Hollow During Women in Construction Week, March 6-10

Women in Construction Week celebrates and promotes the role of women in the construction industry.

Updated Virtual Tour

In this second edition of the Chimney Hollow Reservoir Project Virtual Tour, Project Engineer Jeremy Deuto takes us through the valley to get an inside look at key project components.

Municipal Subdistrict President Dennis Yanchunas speaking at the Chimney Hollow Groundbreaking Ceremony.

Spotlight: Dennis Yanchunas

Behind any large public works project is the leadership that ensures all the pieces are in place for success.

Rendering of the completed spillway.

Looking Ahead at 2023

This will be an exciting year at Chimney Hollow Reservoir as crews plan to accomplish many project milestones and complete multiple construction components.

Snow-covered view of the Chimney Hollow site.

Work Continues Despite Cold, Snowy January

Despite frigid temperatures and snowstorms that left the valley covered in snow for most of the month, many crews were able to continue work with a few adjustments.

Spillway construction, January 2023.

Construction of Spillway Channel Features Underway

While excavation of the spillway channel has been ongoing for over a year, crews recently made the first concrete placements, including shear keys, a seepage cutoff wall and spillway underdrains.