Nov. 7, 2023

First Water Flows Through Colorado River Connectivity Channel

In what’s been described as “the largest aquatic habitat connectivity project ever undertaken in state history,” crews successfully tested the new Colorado River Connectivity Channel (CRCC) at the end of October. The new channel around Windy Gap Reservoir hydrologically and ecologically now reconnects two segments of the Colorado River for the first time in approximately 40 years.  

Northern Water staff were joined by Grand County officials, Windy Gap Project Participant Representatives, Colorado Parks and Wildlife representatives and others to watch the first flows go through the long-awaited channel. This new video captures the historic day and includes comments from the project participants and stakeholders who were present to witness the occasion.    

While water is now running through the new channel, there is still construction work to be done. Crews will continue putting the finishing touches on the project's new dam embankment, diversion structure and other elements before winter weather brings activity to a stop in the upcoming weeks. Construction is expected to resume

next spring and wrap up later in 2024. Vegetation establishment along the channel will continue into 2025 and 2026, before the area is anticipated to open for public recreation in 2027.  

The new channel will enable fish and other wildlife to move freely upstream and downstream around what is now a smaller Windy Gap Reservoir. Meanwhile, the reservoir will continue providing a diversion point on the Colorado River for the Windy Gap Project during the high flows of spring and early summer.  

The CRCC is part of a package of environmental measures, valued at $90 million, associated with construction of Chimney Hollow Reservoir, which is ultimately where Windy Gap Project water will be stored once reservoir construction is completed.