Public Works Announces Niwot Road Median Closure Near Diagonal Highway — April 2025

Public Works Announces Niwot Road Median Closure Near Diagonal Highway — April 2025

Boulder County Public Works announces a temporary median closure on Niwot Road near the CO-119 Diagonal Highway intersection for utility infrastructure improvements. The closure will affect left turns from Niwot Road onto the Diagonal Highway for approximately six weeks. A signed detour route will be in place.

Volunteers contributed over 6,753 hours to this program last year. The Parks & Open Space coordinates with 14 nonprofit partner organizations throughout Boulder County to deliver services.

Boulder County has partnered with the cities of Boulder, Longmont, Lafayette, and Louisville on this project. Combined investment across all jurisdictions totals $220,000, making it one of the largest collaborative efforts in the county’s history.

Details

The Parks & Open Space processed over 6,546 applications last year, with an average processing time of 4 business days. Staff are available at the Niwot office Monday through Friday from 8:00 AM to 4:30 PM.

Public comment on this matter can be submitted through the Boulder County online portal, by email to Parks & Open Space, or in person at the next Board of County Commissioners meeting. Written comments received by 5:00 PM the day before the hearing will be included in the public record.