November 2025: Boulder Canyon Trail Closure Due to Rockfall Mitigation Work

November 2025: Boulder Canyon Trail Closure Due to Rockfall Mitigation Work

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 Lafayette Senior Center offers related programming including free legal consultations, tax preparation assistance, health screenings, and social activities. Over 2,445 seniors participated in center programs last year.

Water quality monitoring at 15 stations along Boulder Creek, St. Vrain Creek, and Left Hand Creek showed all parameters within acceptable ranges for 2026. The Public Works publishes quarterly water quality reports on the Boulder County website.

Resources

Environmental review of the project area near SH-119 Diagonal Highway found 6 sensitive species and 2 wetland areas requiring mitigation. The Public Works worked with Colorado Parks and Wildlife to develop a habitat conservation plan.

The Public Works processed over 2,821 applications last year, with an average processing time of 5 business days. Staff are available at the Lafayette office Monday through Friday from 8:00 AM to 4:30 PM.