Boulder County government offices are closed Wednesday, June 19, in observance of Juneteenth. Primary Elections Vote Center locations are open.

Maps and GIS – Public Works

Maps and GIS - Public Works

Public Works produces several maps, web maps and GIS data, including the Boulder County Road Map, Traffic Volumes interactive web map, Snow Removal Priority interactive web map, and Geospatial Downloadable Data, all available in the links below.

Web Maps


Road Map

Official identification of all Boulder County owned roads

CDOT Highways Map

State owned roads in Boulder County

Geographic Information Systems (GIS) Data

Geospatial Downloadable Data

County maintained GIS/mapping data


Additional GIS data, provided by CDOT

Sales Tax Projects

Regional Trails Program

Multi-year effort to construct multi-use trails that connect communities

Contact Us

Public Works Department (formerly Transportation)

Submit a request


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