US 6 Clear Creek Canyon Rockfall Mitigation

Project Work Resumes Jan. 7, 2019, Following Summer Shutdown

On Jan. 7, 2019, crews will resume work on this project, starting with rockfall mitigation on US 6 from mile points 260 to 272. Remaining work, anticipated to be completed in April 2019, includes:

  • scaling rock;
  • removing scaled rock; and
  • installing rock reinforcement, rock anchors, mesh anchors, and 160,000 squat feet of wire mesh.

Project Facts

  • Cost: $3 million
  • Contractor(s): Apex Rockfall Mitigation
  • Timeline: January 2019 - April 2019
  • Location: US 6 in Clear Creek Canyon from CO 93 to CO 119 (mile points 260.2 to 271.6)

On January 7, 2019, crews on this project will start rockfall mitigation on US Highway 6 in Clear Creek Canyon to protect motorists and reduce emergency closures when debris lands on the roadway.

Specific work will include:

  • rock scaling;
  • removing scaled rock; and
  • installing rock reinforcement, rock anchors, mesh anchors and 285,00 square feet of wire mesh.

Schedule & Traffic Impacts

  • Normal project hours are from 10 a.m. to 5 p.m. Mondays through Wednesdays, and from 6 a.m. to 5 p.m. on Thursdays through April 2019.
    • There will be no parking access for recreation use during construction.
  • Expect full daytime road closures on US 6 Clear Creek Canyon between CO 93/CO 58 and CO 119, from mile point (MP) 260 to MP 272 for rockfall mitigation.
  • Motorists will maintain access at the west end of the canyon, US 6 and CO 119, to access Centennial Cone Park at the Mayhem Gulch Trailhead and the Peaks to Plains Trail at the Big Easy Trailhead.
  • Use I-70 as an alternate route during working hours and full road closures.


Rockfalls happen regularly in Clear Creek Canyon, ultimately causing closures, accidents, and roadway deterioration. This project aims to address these issues and reduce the overall impact of rockfalls in the canyon.

Before the 2018 summer shutdown of this project, crews removed roughly 35,000 tons of rock, and installed around 125,000 square feet of wire mesh and 125 mesh anchors.

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