Lefthand Canyon flood damages 

Lefthand Canyon Reconstruction

Major travel restrictions in place for both motor vehicles and cyclists (see below). Sign up for the project listserv to stay up-to-date on all work and travel impacts.  

Current Roadway Closures and Travel Restrictions: 

Work is currently taking place between US 36 and James Canyon Drive. The following restrictions will be in effect for this stretch until mid- to late-July. In July, work will begin west of James Canyon Drive and up to Lickskillet \Road
    • 1 hour delays between US 36 and James Canyon Drive - 8 a.m. to 4 p.m. - Monday through Friday
      • Road will open for a pass in each direction every hour on the hour
      • Use Lee Hill Road to access Jamestown and Ward without delay
    • 30-minute delays 5:30 a.m. to 8 a.m. and 4 p.m. to Dusk between US 36 and James Canyon
      • Road will open for a pass in each direction every hour on the hour and every half our during these two windows. 
      • Lee Hill Drive is the current best route to Ward and Peak-to-Peak Highway
    • Geer Canyon Drive/Heil Valley Ranch can currently be accessed without delay by entering Lefthand Canyon via US 36
    • 2 and 3 hour delays scheduled and noticed on this website 7 days in advance - Monday through Friday
    • NO DELAYS on Saturdays and Sundays
    • NO DELAYS ON FEDERAL HOLIDAYS - Memorial Day, Independence Day, Labor Day
  • Project Schedule:

    • Begin Work - December 14, 2015
    • End Work - November 2016
    • All work is weather and contractor dependent


    Stay Informed:


    During the September 2013 flood event, numerous sections of Lefthand Canyon Drive were either damaged or completely destroyed. In addition, Left Hand Creek was completely altered throughout the canyon. Soon after the flood, Boulder County Transportation worked diligently to create temporary "winter roads" that would allow residents and service providers access to homes and properties. 

    In the summer of 2014, the damaged sections of Lefthand Canyon Drive received temporary paving aimed at making the area safer for travel while engineering teams worked on final designs for permanent repairs. 

    In the spring of 2015, the Transportation Department partnered with Central Federal Lands (CFL - a division of the Federal Highway Administration) on the final designs and construction of Lefthand Canyon Drive and adjacent sections of Left Hand Creek.   

    The CFL/Boulder County partnership provided an opportunity to improve the design and accelerate the construction schedule. The project includes not only the reconstruction of the damaged road sections, but also better shoulders to improve safety for everyone who uses the canyon, four new bridges where the road crosses the creek and restoration of Left Hand Creek in areas adjacent to the road, which will create a vast improvement of the ecological health of the creek. 

    Additional Project Information:

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