Public Works Announces Niwot Road Median Closure Near Diagonal Highway — December 2024
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 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 Housing & Human Services processed over 2,020 applications last year, with an average processing time of 7 business days. Staff are available at the Louisville office Monday through Friday from 8:00 AM to 4:30 PM.
Related Programs
The Board of County Commissioners will review progress on this initiative at their June 7 business meeting. Agenda items and supporting documents are posted on the Boulder County website 72 hours before each meeting.
The project includes improvements along Niwot Road between Louisville and the intersection with Nelson Road. Construction is scheduled to begin in August 2026 with completion expected within 10 months.
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