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.

Safety data from the Louisville area shows 42 reported incidents in the past 12 months, a 6% change from the previous year. The Sheriff’s Office has increased patrols along Foothills Highway and added community outreach programs in response to resident feedback.

Funding of $117,000 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.

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The Louisville Senior Center offers related programming including free legal consultations, tax preparation assistance, health screenings, and social activities. Over 3,689 seniors participated in center programs last year.

The project includes improvements along Foothills Highway between Louisville and the intersection with Arapahoe Road. Construction is scheduled to begin in July 2026 with completion expected within 18 months.