The link is now complete between Chimney Hollow Reservoir and the existing water-distribution infrastructure that will carry supplies to the project’s participating communities when deliveries begin next year.  

The recently completed Carter Lake Interconnect includes a pipeline that stretches between the new Chimney Hollow valve house and the Carter Lake pressure conduit, which was built in the 1950s as part of the Colorado-Big Thompson (C-BT) Project that’s been delivering water to Front Range users for about 70 years.  

This connecting segment is the second of two key links built between Chimney Hollow and existing C-BT infrastructure. In 2022, crews completed the Bald Mountain Interconnect, the diversion structure that will help fill Chimney Hollow Reservoir as water comes downhill through the C-BT system from nearby Pinewood Reservoir.  

The Carter Lake Interconnect, constructed between late October and mid-December, will conversely carry water out of Chimney Hollow Reservoir after it’s been stored there and back into the C-BT Project’s distributions system.