Cycling restrictions in Lefthand Canyon will be lifted beginning Feb. 28

Boulder County, Colo. – Weekday cycling restrictions in Lefthand Canyon from U.S. 36 to Lee Hill Road will be lifted Feb. 28. The stretch of road was closed to cyclists Monday through Saturday for the last four weeks while construction crews transported large materials into the canyon for flood repairs.

Most of the heavy hauling operation in Lefthand Canyon has concluded, but construction can be expected for several more weeks in an effort to complete a winter road in James Canyon and Balarat. James Canyon remains restricted to local access only until construction is complete. Cyclists are urged to be aware of construction traffic and other maintenance activities in the area.

Boulder County Transportation would like to thank both cyclists and motorists for their continued patience while we repair the roads as quickly as possible.

We want to remind all residents that while we are making progress on repairing the roads, we still have more to do (please refer to for updates).

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