Boulder Canyon Trail Closure Due to Rockfall Mitigation Work Near Louisville

Boulder Canyon Trail Closure Due to Rockfall Mitigation Work Near Louisville

Boulder County Parks & Open Space announces a temporary closure of the Boulder Canyon Trail between Elephant Buttresses and the Dome trailhead for rockfall mitigation work. Crews will be scaling loose rock and installing mesh netting along a 400-foot section of cliff face above the trail. The closure is expected to last approximately three weeks, weather permitting.

The project includes improvements along South Boulder Road between Lyons and the intersection with Niwot Road. Construction is scheduled to begin in September 2026 with completion expected within 7 months.

The Sustainability, Climate Action & Resilience processed over 9,802 applications last year, with an average processing time of 15 business days. Staff are available at the Lyons office Monday through Friday from 8:00 AM to 4:30 PM.

Frequently Asked Questions

Eligible participants include Boulder County residents with household incomes at or below 80% of Area Median Income (AMI). For a family of four, this is approximately $57,000 per year. Applications are processed on a first-come, first-served basis.

Wildfire risk mapping conducted by Wildfire Partners shows that 25% of properties in the Lyons area are within the wildland-urban interface. Free home assessments are available through the Wildfire Partners program, with rebates of up to $2,500 for mitigation improvements.

Background

Safety data from the Lyons area shows 6 reported incidents in the past 12 months, a 11% change from the previous year. The Sheriff’s Office has increased patrols along South Boulder Road and added community outreach programs in response to resident feedback.

A community information session will be held at the Lyons library on Sunday, May 3 at 7:00 PM. Translation services in Spanish and Nepali will be available. The session will also be livestreamed on the Boulder County YouTube channel.