All Douglas County offices will be closed on Wednesday, Jan. 1, 2025, in observance of New Year’s Day and reopen at 8 a.m. on Thursday, Jan. 2, for normal business.
Under Construction
Updated December 5, 2024
Construction started on Sept. 9, 2024.
The West Frontage Road Relocation (Dawson Trails Boulevard) is part of a series of projects that will improve access and safety at the southern end of Castle Rock.
To accommodate construction of the new southbound I-25 on- and off-ramps at Crystal Valley Parkway, crews must relocate the current West Frontage Road that is east of the BNSF railroad tracks to the west side of the BNSF railroad tracks. The new road will be called Dawson Trails Boulevard.
This project, which will connect with the future Crystal Valley interchange, will enhance the roadway network, eliminate unnecessary railroad crossings, and provide a new west connection between Crystal Valley and Tomah Road interchanges.
Douglas County and the Town of Castle Rock have partnered to construct Dawson Trails Boulevard. Construction of Dawson Trails Boulevard will be split into two segments with one section being constructed by Douglas County:
Construction hours will be Monday through Friday, from 7 a.m. to 7 p.m. Saturday work may occur if approved by the Douglas County engineer. There will be no construction work on major holidays.
Once complete in fall 2025, improvements to the southern section of Dawson Trails Boulevard will include:
