Boulder County Transportation manages the construction projects for roads, bridges, pathways, drainage improvements and trails. The projects listed on this page are related to flood recovery and regularly scheduled roadway maintenance.
Construction-Related Travel Impacts
Use the Road Service Request Form to let us know about an issue on area roads.
Travel Impacts
County Road Projects
95th Street Delays and Lane Closures – Expect delays up-to 15-minutes
- Lookout Road to Plateau Road
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- Paving operations will resume Monday, Nov. 4
- Work will take two weeks to complete
- Delays could range between 15 and 30 minutes at intersections
- See map
- Daytime, weekday lane reductions and shifts controlled by flagging personnel
- Alternate routes advised
- Bicycling discouraged during working hours
- See project website for more information
75th Street Pedestrian Access Improvement Project
- Work hours = 7:30 a.m. to 4:30 p.m. — Monday through Friday
- Expect lane closures and traffic shifts near the intersections of:
- 75th Street and S. Heatherwood Drive
- Ashfield Drive and S. Heatherwood Drive
Fourmile Canyon Drive Flood Recovery Project
- Working Hours – 8 a.m. to 4:30 p.m. – Monday through Friday
- NON-RESIDENT CYCLING RESTRICTIONS – use link below
- Delays of up-to 15-minutes in:
- Lower Fourmile Canyon (just north of CO 119/Boulder Canyon Drive to Salina Junction)
Thank you for following restrictions! We apologize for any inconvenience.
For more information about Boulder County road travel impacts, please contact – Andrew Barth – 303-441-1032
Projects Impacting Cycling
Fourmile Canyon Drive/Gold Run Road
DAYTIME-WEEKDAY CYCLING NON-RESIDENT RESTRICTIONS (updated May 16, 2019)
- No recreational/non-resident cycling in Fourmile Canyon
- 8 a.m. to 4:30 p.m. – Monday through Friday
- Cycling permitted on major holidays
- Independence Day – Thursday, July 4
- Labor Day – Monday, Sept. 2
- Residential cycling exception – Residents must contact Boulder County Transportation for pass
- Residents can contact Andrew Barth (info below) to obtain a residential cycling pass
- Restrictions in place due to increased volume of large truck traffic associated with three construction projects
Thank you for following restrictions! We apologize for any inconvenience.
Project Contact – Andrew Barth – 303-441-1032
Non-County Projects
- Foothills Parkway/CO 157 – CLOSED NOV. 2 and 3 – Arapahoe to Baseline for pedestrian bridge removal
- Foothills closed between Arapahoe Avenue and Baseline Road
- 7 a.m., Saturday, Nov. 2 through 7 p.m., Sunday, Nov. 3
- City of Boulder removing a pedestrian bridge south of Colorado Boulevard
- Project goal is to build a new multimodal underpass in the same location
- Expect lane shifts on Foothills throughout construction
- Anticipated end date = August 2020
- Contact – Noreen Walsh – 303-441-4301 or walshn@bouldercolorado.gov
- 63rd Street north of Jay Road – Xcel Energy gas main replacement
- Xcel replacing a gas main between Twin Lakes and Jay Road on 63rd Street
- Expect lane closures and travel delays
- 8 a.m. to 5 p.m. – Monday through Friday
- Oct. 14 to 31
- Apple Valley Road in Lyons – Pipeline Relocation/Replacement
- City of Longmont and Town of Lyons working on pipelines in the area
- Closures of one end of Apple Valley Road are required
- Detours will be posted for Apple Valley Road
- Contact information – email or 303-651-8416
- SH 119/Boulder Canyon Drive Reconstruction Project – CDOT April 2019 to February 2021
- Expect significant travel delays and roadway closures
- Project hotline = 720-500-9912
- Project email = CDOTCO119@gmail.com
- Text “CO119” to 21000 to receive project alerts
- Northern Water – Southern Water Supply Project
- Northern Water is constructing a new pipeline between Carter Lake in Larimer County and Boulder Reservoir in Boulder County
- The project will also require short travel delays on Boulder County Roads including (see map):
- N. 75th Street
- N. 73rd Street
- N. 63rd Street
- Hygiene Road
- Niwot Road
- Project Website
- Contact Information
- Special Event Permit Requests – Pending & Approved taking place throughout Boulder County
- Learn about road closures in the City of Boulder at www.BoulderConeZones.net.
- Learn about road closures in Longmont
- Learn about road closures in Lafayette
- Learn about road closures in Louisville
- Learn about road closures in Erie