News

Overview of Chimney Hollow main dam May 2023

By The Numbers: 1,000,000 Cubic Yards of Zone 4 Embankment Placed 

As of 8 a.m. on April 27, crews placed 1,000,000 cubic yards of zone 4 embankment on the main dam.

After Successful Year 1 of Construction, Connectivity Channel Crews Prep for Busy 2023

Machinery and labor force throughout the past several months have brought closer to fruition a long-awaited, broadly supported and historic project that will transform a section of the Colorado River.

Snowy sunset over the mountains

Colorado River Sees Strong Precipitation – Highlighting the Need for Chimney Hollow Reservoir 

For communities building Chimney Hollow Reservoir, the snowy weather underscores the need for the new water storage project. 

Conduit pipe being installed at Chimney Hollow

Chimney Hollow Conduit Halfway Complete

One of the major components of Chimney Hollow Reservoir’s water conveyance system hit an important milestone this month as crews constructing the Chimney Hollow Conduit reached the halfway point.

Truck dumping rockfill on the main dam at Chimney Hollow

Crews Place Almost 700,000 Cubic Yards of Embankment Material on Main Dam

Barnard Construction crews have placed over 700,000 cubic yards of embankment material (from filter sand all the way up to 2-foot diameter rock)

Entrance to the downstream portal at Chimney Hollow

Downstream Tunnel Nearly Complete, Upstream Portion Underway

The entire tunnel is about 2,000 feet in length and will be able to deliver water in and out of Chimney Hollow Reservoir.

Roadheader machine used for drilling

Equipment Spotlight: Tunnel Roadheader

As work begins on the upstream portal of the inlet/outlet tunnel, a roadheader will be utilized for mining.

Chimney Hollow Spring Water Symposium Video

This video, shown at Northern Water’s Spring Water Symposium, highlights milestones reached since the start of the Chimney Hollow Reservoir Project and what to look forward to in 2023.

Night view of construction at Chimney Hollow

Round-the-Clock Operations at Chimney Hollow

As we transition from winter to spring, on-site activities have and will continue to increase.