Level 2 Fire Restrictions in effect for all areas of unincorporated Boulder County (See flyer). For updates on active fires, follow BoulderOEM

COVID-19 updates are available in English and Spanish. See list of Resources (Recursos) for those impacted by COVID-19.

Traffic Signals

Boulder County owns and maintains 18 traffic signals and 7 school zone flashing signs that are placed throughout unincorporated Boulder County. The county typically hires a professional traffic engineering firm to test, set and maintain the signals’ timing and operation.

Boulder county traffic signal at 63rd and Jay Road

Boulder county traffic signal at 63rd and Jay Road

County-Operated Traffic Signals are located at the intersections of:

  • South Boulder Road and North 76th Street
  • South Boulder Road and Cherryvale Road
  • Baseline Road and North 76th Street
  • Baseline Road and North 75th Street
  • Baseline Road and Platt Middle School (near Cherryvale Road)
  • North 75th Street and Jay Road
  • North 75th Street and Valmont Road
  • Jay Road and North 63rd Street
  • Jay Road and Spine Road
  • Jay Road and North 47th Street
  • North 63rd Street and Twin Lakes Road
  • Lookout Road and North 95th Street
  • Niwot Road and North 95th Street
  • Niwot Road and Niwot High School in Niwot
  • Niwot Road and Walker Avenue
  • Valmont Road and North 61st Street
  • Valmont Road and Butte Mill Road
  • North 75th Street and Hygiene Elementary School in Hygiene

Traffic lights not on this list are either owned and operated by a municipal government or by the Colorado Department of Transportation (CDOT).

Contact Us

Public Works Department (formerly Transportation)

303-441-3900
Submit a request
Email

Location

2525 13th Street
Boulder, CO 80304

Map & Directions

Hours: 8 a.m. - 4:30 p.m. M-F

Mailing Address

P.O. Box 471
Boulder, CO 80306