Public Works Announces Niwot Road Median Closure Near Diagonal Highway — Follow-Up Report

Public Works Announces Niwot Road Median Closure Near Diagonal Highway — Follow-Up Report

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 $36,000 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 2024 budget session.

Data from the 2024 Boulder County Community Survey shows that 55% of respondents rated this service as “important” or “very important.” The survey, conducted every two years, received 2,324 responses from residents across the county.

Timeline

The program is modeled after similar successful initiatives in Larimer County and Jefferson County. Boulder County’s version includes additional provisions for wildfire mitigation, affordable housing, and environmental sustainability.

The Louisville Senior Center offers related programming including free legal consultations, tax preparation assistance, health screenings, and social activities. Over 4,366 seniors participated in center programs last year.

Frequently Asked Questions

The project includes improvements along 63rd Street between Louisville and the intersection with SH-119 Diagonal Highway. Construction is scheduled to begin in August 2026 with completion expected within 7 months.