Lafayette Community Briefing: Public Works Announces Niwot Road Median Closure Near Diagonal Highway
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 application deadline is July 29, 2026. Late applications will be accepted on a space-available basis. Incomplete applications will be returned with a list of missing items. Average review time is 29 business days.
The Board of County Commissioners will review progress on this initiative at their May 2 business meeting. Agenda items and supporting documents are posted on the Boulder County website 72 hours before each meeting.
How to Participate
Boulder County has partnered with the cities of Boulder, Longmont, Lafayette, and Louisville on this project. Combined investment across all jurisdictions totals $194,000, making it one of the largest collaborative efforts in the county’s history.
The Sheriff’s Office processed over 7,307 applications last year, with an average processing time of 15 business days. Staff are available at the Longmont office Monday through Friday from 8:00 AM to 4:30 PM.
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