News

exterior of the Platte River Power Authority headquarters

Participant Spotlight: Platte River Power Authority

Platte River Power Authority is a unique participant in the Chimney Hollow Reservoir Project as it is not a water provider, but a power provider.

Conveyors and equipment seen inside the Chimney Hollow tunnel

Tunnel Being Lined and Backfilled with Concrete

The 2,000-foot tunnel is a key feature of the Chimney Hollow Reservoir Project.

Quarry at Chimney Hollow Reservoir looking west with visible layers of rock

Quarry Production Nearly 80 Percent Complete

Chimney Hollow’s onsite quarry is on track to wrap up production in early 2025.

Equipment compacting layers of clay on the Chimney Hollow saddle dam

Saddle Dam Construction Makes Quick Progress, Grows Nine Inches per Day

Last month, construction began on the saddle dam, a 40-foot-tall clay core dam that sits at the south end of Chimney Hollow Reservoir.

smoke from the Alexander Mtn fire seen from the Chimney Hollow Reservoir site

Front Range Fires Generate Regional Response

A fire burning west of Loveland and one burning south of Carter Lake have prompted a regional response from federal, state and local agencies, including Northern Water.

Chimney Hollow Reservoir Project Celebrates Three Years of Construction

Three years ago, construction kicked off at the Chimney Hollow Reservoir Project, and today, the project is about six weeks ahead of its original targeted completion date.

Construction of the valve house at Chimney Hollow Reservoir shows the structure going vertical

Valve House Takes Shape as Exterior Steel is Placed

As the valve house begins to take shape, crews are wrapping up all valve installations inside.

Summer 2024 Virtual Tour

Site experts give us an inside look at key components of project construction, including the labs, spillway, main dam, saddle dam and future Larimer County Chimney Hollow Open Space.

Chimney Hollow Reservoir Project, NISP Receive State Conservation Board Financing

New legislation to provide state financing help for two Northern Colorado water projects has been signed into law by Gov. Jared Polis.