A series of rock slides shut down U.S. Highway 6 in both directions Thursday morning, choking off the busy canyon stretch between the Highway 58 interchange in Golden and the Highway 119 junction at the Clear Creek County line. Jefferson County deputies say the canyon is currently impassable and are urging drivers to steer clear while crews clear debris and check the slopes for more loose rock. The shutdown knocks out a popular back way into the mountains and could tack on serious extra time onto commutes and weekend escape plans.
The closure was first announced early Thursday by the Jefferson County Sheriff's Office, which reported “multiple rock slides” blocking the highway and asked people to avoid the area, according to the Jefferson County Sheriff's Office. The post did not offer a reopening estimate and advised drivers to keep an eye on updates from local agencies.
Where The Closure Hits And Who Feels It
The shutdown stretches along U.S. Highway 6 through Clear Creek Canyon from the CO‑58/Golden interchange west to the CO‑119 junction at the county line, cutting off a key alternate to I‑70. When this corridor closes, the Colorado Department of Transportation (CDOT) typically sends drivers to I‑70 as the main detour and shares live camera feeds and closure notices on COtrip and through the 511 system, according to the Colorado Department of Transportation (CDOT). Anyone heading to mountain communities or the Black Hawk and Central City casino corridor should plan for delays and build in extra time.
Why This Stretch Keeps Letting Go Of Rock
Clear Creek Canyon ranks among the Front Range's most rockfall‑prone corridors. The Colorado Geological Survey has documented repeated rockfalls and larger slides along US‑6 that have required lengthy cleanup operations in past years, according to the Colorado Geological Survey. The agency points to the canyon's steep Precambrian rock walls, intrusive pegmatite contacts, and harsh weather cycles as a recipe for slopes that periodically shed boulders, especially after heavy precipitation or freeze‑thaw swings. Mitigation work has reduced some risk, but sudden rock slides remain an off‑and‑on fact of life in the canyon.
How Drivers Should Navigate The Shutdown
Officials are asking motorists to skip Clear Creek Canyon entirely while crews work, and to use I‑70 if travel cannot be postponed, with current conditions and camera views available on COtrip.org or by dialing 511, per Colorado Department of Transportation (CDOT). Drivers should brace for detours, slower traffic, and unpredictable delays until the rock is cleared and engineers are confident the slopes above the highway have settled down.
