Thornton Construction


July 2024

Segment A will install 12 miles (8.5 miles within Thornton) of 42-inch diameter raw water pipeline.  Segment A of the TWP project extends from 168th Avenue along Quebec Street toward 120th Avenue; the pipeline continues south and west toward Riverdale Road and 112th Avenue, then south to 104th Avenue at McKay Road, then entering open space areas in Thornton and Adams County to terminate south and east of 88th Avenue and Colorado Boulevard connecting to the Thornton Wes Brown Water Treatment Plant (WBWTP).

This project includes the following four construction packages:

Notice to Proceed (NTP) was issued to the contractor on June 10, 2024.  This segment of the project is scheduled to be complete in summer of 2026.  Click on the image to the right to see the water pipeline route in Segment A.

View the City of Thornton’s current capital improvement projects map.

Please call the Thornton Water Project mainline at 720-977-6700 if you have any questions.