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Public Works – Roads, Buildings, and Resource Conservation

Public Works Department - Building Services, Fleet Services, Resource Conservation, Road Maintenance, and Transportation Engineering

What's New?

Traffic Impact Announcements

N. 51st Street/N. 55th Street CLOSURE for Culvert Replacement – Road will close for this work – Learn more

Hygiene Road culvert replacement requires full road closures between US 36 and N. 59th Street starting Aug. 28 through December – A failing culvert that carries water into Foothills Reservoir at Bashor Farms will be replaced. This work will require a full closure of Hygiene Road between N. 59th Street and US 36 for all travelers starting in Aug. 28 through December.

Learn about all current roadway projects and their travel impacts on our Closures & Construction webpage.

Boulder County Road Statistics:

COVID-19 Building Safety

Information Concerning COVID-19

The Public Works Department remains fully operational, but staff and public presence at county facilities has been restricted to 8 a.m. to 4:30 p.m. on Tuesdays and Thursday. If you need to reach staff and don’t have direct email or phone information, please call 303-441-3900. You can also use the online report form to let us know about a roadway issue or submit a question to the department. All day-to-day operations will continue to function. Road Maintenance will continue to take care of issues that arise on county roads, including snow removal operations. Information on road construction projects and their travel impacts can be found on the Closures and Construction webpage.

If you need to contact the Community Planning & Permitting Department and the Transportation Planning Division, visit their website or call 303-441-3930.

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.

Learn more about maintenance and repairs of local access/subdivision roads in unincorporated Boulder County.

Department Divisions (hover over image to learn more)

Engineering Division

  • Design and construction of all county transportation projects
  • Projects include (but are not limited to) – paving, bridge construction, bikeways, shoulders, regional trails, drainage structures

Building Services Division

  • Manages all county facilities to ensure the safety of staff and visitors

Fleet Services Division

  • Manages the county’s fleet of vehicles and machinery
  • Performs maintenance and repairs
  • Purchases vehicles and equipment
  • Works to improve the fleet’s sustainability

Learn more about Boulder County’s Fleet Electrification goals!

Resource Conservation Division

The Resource Conservation Division strives to lead and promote actions that will help Boulder County reach its goal of Zero Waste or darn near by 2025. Their mission is to provide convenient, cost-effective facilities and programs to help Boulder County reduce waste disposal, protect the environment, and conserve natural resources.

Road Maintenance

  • Our Road Maintenance team keeps our roads safe and clean!
  • Responsibilities include: culverts, dust control, paving, asphalt and gravel, road grading, road signs, snow plowing and removal, tree and brush removal, and many other tasks
  • Roadside mowing and weed control is the responsibility of the county Parks & Open Space Department – 303-678-6200
  • Ditches are the responsibility of the ditch owner – Learn more
  • Road Maintenance contact – 303-441-3962 or use the online report form

Contact Us

Public Works Department (formerly Transportation)

Submit a request


2525 13th Street
Boulder, CO 80304

Map & Directions

Hours: Building Open 8 a.m. - 4:30 p.m. Tuesdays & Thursdays

Mailing Address

P.O. Box 471
Boulder, CO 80306