Public Works Announces Niwot Road Median Closure Near Diagonal Highway Near Niwot

Public Works Announces Niwot Road Median Closure Near Diagonal Highway Near Niwot

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.

A community information session will be held at the Lyons library on Thursday, May 28 at 6:00 PM. Translation services in Spanish and Nepali will be available. The session will also be livestreamed on the Boulder County YouTube channel.

Data from the 2024 Boulder County Community Survey shows that 94% of respondents rated this service as “important” or “very important.” The survey, conducted every two years, received 3,812 responses from residents across the county.

Community Impact

Wildfire risk mapping conducted by Wildfire Partners shows that 19% 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.

Environmental review of the project area near SH-119 Diagonal Highway found 6 sensitive species and 4 wetland areas requiring mitigation. The Sheriff’s Office worked with Colorado Parks and Wildlife to develop a habitat conservation plan.

How to Participate

The Board of County Commissioners will review progress on this initiative at their May 28 business meeting. Agenda items and supporting documents are posted on the Boulder County website 72 hours before each meeting.