There are typically four main routes to/from Coal Creek Canyon:
OPEN: East (to Denver/Boulder/Golden) – Highway 72
OPEN: West (to Peak To Peak/Nederland) – Highway 72
This route is open.
OPEN: North (to Gross Dam/Flagstaff/Boulder) – Gross Dam Road
This route is open to Boulder, via Flagstaff Road. This is for residents only. This route is compromised (one lane) at 1400 Gross Dam Road and on lower Flagstaff Road. This route is rough/dusty/narrow.
Note: This is a dirt road for much of the way. See this update on it’s status.
OPEN: South (to Gap Road/Highway 119) – Twin Spruce/Gap Road
This route is a dirt road, but is the main & current route in and out of the canyon.
Note: Golden Gate Canyon is OPEN.
Flood Map (showing Coal Creek Area)
This flood map is no longer updated. It shows our region, and the places that have had problems, but will not be updated (by JeffCo) as these problems are resolved.
View #JeffCoFlood Jefferson County Flood Information in a larger map