Public Works Announces Niwot Road Median Closure Near Diagonal Highway
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.
The application deadline is July 28, 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 14 business days.
Residents in the Gunbarrel area should note that service boundaries may differ from city limits. For properties in unincorporated Boulder County, contact Sheriff’s Office at (303) 441-3032 to verify eligibility and requirements.
Next Steps
Climate considerations are central to this effort. Boulder County’s 2025 Climate Action Plan sets targets of reducing greenhouse gas emissions 41% below 2005 levels by 2030. This project contributes to those goals through energy efficiency improvements, renewable energy integration, and reduced vehicle miles traveled.
A community information session will be held at the Gunbarrel library on Saturday, May 16 at 5:00 PM. Translation services in Spanish and Nepali will be available. The session will also be livestreamed on the Boulder County YouTube channel.
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