Project funding has been secured, and construction is scheduled to begin in summer 2018.


In late April 2018, CDOT conducted and released an environmental assessment of the 18-mile stretch of I-25 between Monument and Castle Rock. The project team opened a public comment period, which closed on May 30, 2018. 

In late June 2018, CDOT and the Federal Highway Administration completed and released its final analysis of all documentation—including public comments—resulting in a finding of no significant impact (FONSI), which states that the proposed action within the environmental assessment will have no significant impact on the human or natural environment.