Amended fire restrictions: Stage 1 fire restrictions in western Boulder County. Fire restrictions rescinded in eastern Boulder County.

Safe Cycling on Boulder County Roads

Three Feet to Pass Law

Colorado law states drivers must give cyclists 3-feet of room when moving past them. That’s 3-feet from the widest point of the vehicle, which is typically the side mirrors, but can also be a trailer in tow. Motor vehicles should attempt to give cyclists as much room as possible when passing.

Vehicles can cross a double-yellow line to pass a cyclist. The yellow lines advise drivers that they should stay in their lane due to a reduced line of sight, whether it be due to a curve ahead or the road is moving over a hill. It is not against the law to cross the double-yellow line to pass a cyclist, but you must be safe when doing so.

Contact Us

Public Works Department (formerly Transportation)

303-441-3900
Submit a request
tdadmin@bouldercounty.gov

Location

2525 13th St.
Boulder, CO 80304

Map and Directions

Hours: Building Open 8 a.m. to 4:30 p.m.
Tuesdays and Thursdays

Mailing Address

P.O. Box 471
Boulder, CO 80306