Boulder County government offices closed Friday, July 4, for Independence Day.

Closures and Construction

Construction-Related Travel Impacts

Boulder County Public Works manages construction projects in unincorporated Boulder County for roads, bridges, multi-use pathways, and drainages.

Travel Impacts

Ogallala Road Repairs Between CO 119 and North 83rd Street – Ogallala CLOSED July 14 through July 17

Road Maintenance will be repairing Ogallala Road on both sides of the BNSF train tracks just east of CO 119. The work will require a full roadway closure of Ogallala Road between CO 119 and North 83rd Street from 7 a.m. on Monday, July 14 through 4 p.m. on Thursday, July 17. This anticipated timeline is weather dependent.

Sugarloaf Road Culvert Replacement at Betasso Road Starts in July – Expect travel delays

Multiple culvert replacements on Sugarloaf Road at Betasso Road will require lane closures and traffic shifts, which will result in travel delays of up-to 15-minutes. Work is anticipated to last through October 2025.

City of Boulder 63rd Street Waterline Replacement – FULL CLOSURE OF 63rd/61st Street between Jay Road and Andrus Road starts July 14 and lasts through February 2026

The City of Boulder is conducting a waterline replacement project that will have several traffic impacts through 2025 and into 2026. Please view the City of Boulder’s project webpage for specific information.

CDOT CO 119/Diagonal Highway Safety, Mobility, and Bikeway Construction – UNDERWAY – Expect significant travel impacts

CDOT is currently working on this project, which will require significant travel impacts on CO 119/Diagonal Highway between Boulder and Longmont. This project is anticipated to be completed in the Spring of 2027.

Project Hotline – 720-378-8083
Project Email[email protected]
Visit CDOT’s CO 119 project Webpage to learn more and to subscribe to the project email list

HELPFUL LINKS

For more information about Boulder County road travel impacts, please contact – Andrew Barth at [email protected] or call 303-441-1032

View the Roadway Travel Impacts Map to see locations of the projects listed above.

Contact Us

Public Works Department (formerly Transportation)

303-441-3900
Submit a request
[email protected]

Location

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

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