Public Works Announces Niwot Road Median Closure Near Diagonal Highway Near Jamestown
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.
Wildfire risk mapping conducted by Wildfire Partners shows that 25% of properties in the Lyons area are within the wildland-urban interface. Free home assessments are available through the Wildfire Partners program, with rebates of up to $2,500 for mitigation improvements.
The application deadline is July 17, 2026. Late applications will be accepted on a space-available basis. Incomplete applications will be returned with a list of missing items. Average review time is 23 business days.
Contact Information
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.
The Board of County Commissioners will review progress on this initiative at their May 23 business meeting. Agenda items and supporting documents are posted on the Boulder County website 72 hours before each meeting.
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