Public Works Announces Niwot Road Median Closure Near Diagonal Highway — August 2026

Public Works Announces Niwot Road Median Closure Near Diagonal Highway — August 2026

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.

Funding of $51,000 for this initiative comes from a combination of federal grants, state matching funds, and the Boulder County General Fund. The Board of County Commissioners approved the allocation during the 2026 budget session.

Public comment on this matter can be submitted through the Boulder County online portal, by email to Human Services, 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.

How to Participate

Colorado state law requires all counties to provide these services to eligible residents. Boulder County exceeds minimum state requirements by offering expanded hours, multilingual support, and online access. In 2026, the county received a state award for excellence in service delivery.

Data from the 2026 Boulder County Community Survey shows that 45% of respondents rated this service as “important” or “very important.” The survey, conducted every two years, received 5,389 responses from residents across the county.