2026 Castle Pines Parkway Reconstruction

Project Overview

As a part of the 2026 Road Solutions projects, road reconstruction began on June 1 for the westbound lanes of Castle Pines Parkway. The project includes a complete reconstruction of the roadway. The Castle Pines North Metropolitan District is also replacing the waterline under the road and the related water infrastructure. This project marks a significant investment in Castle Pines’ infrastructure, enhancing safety, increasing mobility, and upgrading critical utilities.

July 15 Update: During its July 14 meeting, City Council approved additional work as part of the 2026 Castle Pines Parkway reconstruction project. Crews will now replace the concrete roadway between Forest Park Drive and the Buffalo Trail roundabout with asphalt after finding the existing concrete was more damaged than expected.

 Schedule:

  • Project Start: June 1, 2026
  • Anticipated Project Completion: Fall 2026
    • Crews completed and reopened the westbound section from Monarch Boulevard to Deer Clover Drive (including the stretch in front of Timber Trail Elementary) on August 11 to minimize impacts on school traffic.
    • Construction on the remaining portion, west of the Deer Clover Drive intersection, will continue and is scheduled for completion this fall.

Project Status:

  • All primary waterline infrastructure improvements have been completed.
  • Waterline testing is scheduled to begin the week of October 5.
    • Once this portion of the new waterline is installed, tested, and tied in, the roadway crew will begin paving westbound Castle Pines Parkway from Deer Clover to just east of the Buffalo Trail roundabout.
  • Asphalt pouring is currently expected to begin for the westbound lanes in late October.
  • Once the remaining westbound lanes of Castle Pines Parkway (Forest Park Drive to near the Buffalo Trail roundabout) are paved, traffic will be shifted onto the new pavement, and the eastbound concrete drive and bike lanes will be removed, leaving the curb and gutter and median.
  • Final paving operations for the remaining eastbound lanes of Castle Pines Parkway (from Forest Park Drive to near the Buffalo Trail roundabout) are expected in early to mid-November.
  • Landscape restoration will occur concurrently with the rest of the project's operations.

All work and anticipated timing are weather-dependent.

Project Improvements Include:

  • Reconstruction of the westbound lanes of Castle Pines Parkway between Monarch Boulevard and Forest Park Drive.
  • Initially, diamond grinding was planned from Forest Park Drive to Buffalo Trail to smooth the existing roadway and improve drivability. However, the damage to the concrete was much more significant than previously anticipated. Therefore, crews will remove the concrete and replace it with asphalt for both the eastbound and westbound lanes. The project is still expected to be completed on schedule by early fall.
  • New waterline and related infrastructure by the Castle Pines North Metropolitan District.

Detour Information and Construction Impacts:

  • Traffic will be rerouted so that both westbound and eastbound traffic uses the eastbound traffic lanes on Castle Pines Parkway within the project's construction limits.
  • During the initial phase of construction, crews will replace waterline infrastructure in the Castle Pines Parkway and Monarch Boulevard intersection. During this work, lane shifts will be required. However, turning movements in all directions will remain open. Please drive carefully, follow construction crews' directions, and pay attention to construction signage and cones. Lane shifts will change throughout this phase of the project.

If you have questions about the project, please email communications@castlepinesco.gov or call 303-705-0200.

Want to learn more about our long-term Road Solutions?

City Council has created a Plan of Action for the Streets of Castle Pines. Visit our Road Solutions page and find out how the City plans to invest heavily in our infrastructure over the next several years.