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The original item was published from 10/2/2023 8:31:10 AM to 10/17/2023 12:00:01 AM.

News and Announcements

News and Announcements

Posted on: October 2, 2023

[ARCHIVED] Town starts Four Corners intersection improvements project Oct. 4

Map of the Four Corners, where Founders Parkway, Fifth Street, State Highway 86 and Ridge Road meet.

Improvements are coming to the Four Corners intersection, where Founders Parkway, Fifth Street, State Highway 86 and Ridge Road meet, to increase safety, reduce congestion and keep you moving throughout Castle Rock.

The Four Corners improvements project includes intersection reconstruction, roadway widening, signal upgrades and accessibility improvements. This work will help alleviate roadway congestion, increase mobility for vehicular, pedestrian, and bicycle traffic and create a safer experience for all travelers at this major intersection. 

Once completed, the project will feature the following elements:

  • Additional through lane in all directions
  • Double dedicated left-turn lanes on northbound Ridge Road and southbound Founders Parkway
  • Upgrades to the traffic signal
  • Crosswalk improvements and trail connections

Construction is expected to begin Wednesday, Oct. 4. Throughout the duration of the project, please watch for changing traffic patterns and daytime and nighttime lane closures. Access impacts to local businesses may be required intermittently. The project team will maintain access, although a short detour may be required. Please plan for some delays while traversing this intersection. Signs along the roadside will provide the most updated information. 

This project is a collaborative effort between the Town of Castle Rock, Douglas County and the Colorado Department of Transportation. Construction is anticipated to be complete in late 2024. 

For more information or to join the email list to stay informed about the project’s progress, go to To contact the project team with questions, concerns or comments, email [email protected] or call the project hotline at 720-733-6094.

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Need to talk to the Town? Dial 720-896-TOWN (8696) to reach a menu for help with frequently asked questions or live assistance during business hours.

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