Department Overview
Boulder County Public Works strives to build and maintain a network of roads and trails and portfolio of facilities that are safe, accessible, and inclusive for county staff, residents, and visitors. We also provide and assist with inclusive projects and programs for the successful diversion of waste from area landfills in order to create a sustainable present and future through the circular economy.
Mission Statement
Boulder County Public Works is dedicated to enhancing community well-being through sustainable infrastructure solutions, fostering environmental stewardship, and ensuring safe and efficient transportation networks for the public.
Boulder County Public Works Includes These Divisions:
- Building Services
- Engineering
- Geographic Information Systems (GIS)
- Resource Conservation
- Road Maintenance
Learn More About
- Bus and Bike Programs in the Community Planning and Permitting Department
- Current Construction Projects
- Permits and Requests Needed to Complete Work on and Alongside County Roads
- Future Projects and Plans
What’s New
- Baseline Road at Dry Creek Bridge Replacement Project – Baseline Road CLOSURE March 11 through 25
- Traffic Calming Framework Development
- Compost Facility Exploration
- 28th Street Boulder County Community Hub
- East County Line Road Projects
- 61st Street and Valmont Road Intersection Safety Improvements Project
- 120th Street Project Reconstruction Starting in April/May 2026– Work requires a full closure of 120th Street
Did You Know – County Road Statistics – Subdivision Roads – Adopt-A-Road
- 740 total miles of roadway
- 401 miles of paved road
- 339 miles of gravel road
- Learn about county roads, bridges, and culverts
- The county maintains 18 traffic signals and 7 school-zone flashing signals
Subdivision Road Maintenance
The Boulder County Comprehensive Plan (BCCP) provides guidance on gravel and paved roads accepted for maintenance in unincorporated Boulder County. The BCCP stipulates that funding for major repairs should be prioritized for the county’s arterial and collector roadways, and that funding of local access roads (aka “subdivision roads”) shall be the responsibility of those served by the road (property owners).
While the county does not conduct major repairs (full roadway resurfacing) on subdivision roads, our Road Maintenance crews still conduct operations on these roads, including: snow removal; pothole patching; clearing of ditches, culverts, and other drainage structures; replacement/repairs of sidewalks; and, roadway crack sealing and patching to maintain public safety.
Adopt-A-County Road Program
There are several county roads that can be adopted by local groups and organizations to help us keep them free of litter and debris. Learn more about this 35-year old “road adoption” program.