County Road 86 (280th Street) from Garrett Avenue to Highway 3 (Chippendale Avenue) reconstruction project will continue this summer. 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–spring 2025
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 is closed for the duration of construction of the railroad trestle bridge in Castle Rock. The closure will be from just east of the railroad bridge to Danbury Avenue.
Construction
April 18–26
Railroad construction:
- Cleaning up the west side in preparation for the cutover to the new bridge in May
County Road 86 Newsletter