I-25 Study

Improving I-25 between Denver and Monument

Between Monument and C-470, I-25 experiences congestion on numerous days throughout the week. Weekday and weekend travel delays and unreliability frustrate travelers now and will only get worse as Colorado's population grows from 5 million to more than 8 million in the next 20 years. Congestion, high (75 mph) speeds, and climbing grades contribute to severe crashes and can lead to long periods of highway closures.

CDOT initiated this Planning and Environmental Linkages (PEL) Study to identify immediate and longer-term solutions to this vital stretch of highway, connecting Colorado Springs and the Denver South area. Learn more on CDOT's website

Castle Rock's connection


Read Town Council's letter of support (PDF).
View CDOT's presentation to Town Council on April 3, 2018 (PDF)
View CDOT's presentation to Town Council on June 20, 2017 (PDF)