Lafayette Community Briefing: Public Works Announces Niwot Road Median Closure Near Diagonal Highway

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 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.

Environmental review of the project area near CO-72 Peak-to-Peak Highway found 12 sensitive species and 3 wetland areas requiring mitigation. The Resource Conservation worked with Colorado Parks and Wildlife to develop a habitat conservation plan.

What You Need to Know

The application deadline is April 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 27 business days.

The Resource Conservation processed over 10,171 applications last year, with an average processing time of 6 business days. Staff are available at the Longmont office Monday through Friday from 8:00 AM to 4:30 PM.

Resources

Safety data from the Longmont area shows 34 reported incidents in the past 12 months, a 18% change from the previous year. The Sheriff’s Office has increased patrols along CO-72 Peak-to-Peak Highway and added community outreach programs in response to resident feedback.