County Road 86 (280th Street) from Garrett Avenue to Highway 3 (Chippendale Avenue) will be reconstructed. The project will include the addition of 8-foot shoulders, turn and bypass lanes at public intersections and drainage improvements from County Road 23 (Galaxie Avenue) to Highway 3 (Chippendale Avenue). Within Castle Rock, the improved County Road 86 will have one travel lane in each direction, a continuous center turn lane, and curb and gutter with storm sewer.
The replacement of the existing trestle railroad bridge in Castle Rock is also included in the reconstruction project. The bridge replacement includes increasing the vertical clearance to state standards, a design without a center pier and increasing the opening width to improve sight lines and safety.
Project timeline
August 2022–October 2023
Get email updates
To receive email updates for this project, email Stacy Reilly at stacy.reilly@co.dakota.mn.us. Please include “CP 86-34 Updates" in the subject line.
Access
County Road 86 will be closed from Foliage Avenue to Highway 3. The detour will be Highway 3 south to County Road 96 (320th Street), west to County Road 23 (Foliage Avenue), and north back to County Road 86.
Construction schedule
Sept. 30–Oct. 8
- Relocating private utilities throughout the project
- Grading the roadway and placing sand and gravel to build the road from just east of the railroad tracks to west of Fairgreen Avenue
- Installing driveway culverts
County Road 86 Newsletter