Roads & Transportation

Learn about transportation projects, construction, planning, and road maintenance. Access transportation programs and maps designed to increase mobility throughout Boulder County.

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Transportation Department Mission Statement:

Boulder County Transportation is committed to providing excellent service and quality transportation infrastructure. We provide a reliable network of roadways, bikeways, trails and transit service to Boulder County residents and visitors while ensuring the health, safety and welfare of the public. We plan, construct, and maintain a high-quality, safe and multi-modal transportation network and related services, in a responsive manner, within budget, and on schedule that results in high customer satisfaction.

Boulder County Transportation Infrastructure

Boulder County maintains:

The Boulder County Transportation Department has five primary Divisions:

Planning Division:

  • Development of policies and programs
  • Manages the floodplain and drainage to minimize damage caused by flooding
  • Reviews land development within the county to preserve and protect the public rights-of-way.
  • Contact: 303-441-3900

Engineering Division:

  • Includes the design and construction of all the county's transportation projects
  • Projects may include: paving, bridge construction and reconstruction, bikeway shoulder construction, regional trails and roadway drainage structures
  • Contact: 303-441-3900

Multi-Modal Division:

Road Maintenance Division:

  • Responsibilities include: culverts, dust control, paving, asphalt and gravel, road grading, road signs, snow plowing, tree and brush removal
  • Roadside mowing and weed control is the responsibility of Boulder County Parks & Open Space - Call 303-678-6200
  • Contact: 303-441-3962 OR Fill out the online service request form

Fleet Services Division:

  • Manages the county's fleet of vehicles and machinery
  • Performs maintenance and repairs
  • Purchases Vehicles
  • Works to improve the sustainability of fleet operations

Transportation Project Listserv

Sign up for the Transportation email listserv to receive timely information and updates on projects and roadway travel restrictions.