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September 23, 2016

Media Contact
Andrew Barth, Transportation Communications, 303-441-1032

Alexandra Phillips, Bicycle Planner,

Construction Update on Boulder County Roads

Hello Boulder County Cyclist News Subscriber -

The following is an update on current and new construction that may impact your ride on unincorporated Boulder County roads.

Lefthand Canyon

Paving between US 36 and James Canyon is almost complete. Paving operations will resume on Monday and crews will start at the cut just east of the intersection with James Canyon Drive. Crews will focus on completing paving in this area before moving west up the canyon. Expect delays as flaggers move travelers around the work zones.

Excavation work continues at mile 1.3. Due to the possibility of falling rock in this area, the road will be closed for one hour at a time. The road will be open each hour on the hour in this location. Expect work to continue in this area for the next few weeks.

West of Lee Hill Drive the road is either a milled asphalt surface or gravel as it awaits paving. In addition, major excavation work, including blasting, will continue next week in the area just east of Glendale Gulch. Work will require delays of up-to one-hour when blasting operations are taking place. Blasts are scheduled for 9 a.m. and 1 p.m. starting Tuesday and will continue each day through Friday.

No work takes place on the weekend.

Lower Flagstaff Road Repaving Project starts Monday

Lower Flagstaff Road Overlay Starts Monday, Sept. 26 and work will last through mid-October, weather permitting. Repaving operations will take place from 8 a.m. to 4:30 p.m., Monday through Friday, between the Boulder city limits on Baseline Road and the Halfway House parking lot located across from the Flagstaff House Restaurant. During working hours, one lane of Flagstaff Road will need to be closed and flaggers will be used to move people safely around the construction zone. Expect delays as traffic is alternated through the single lane. When work is not taking place, both lanes will be open but the road may in less than ideal travel conditions as the surface will be milled, so please use caution when riding in this area.

North 83rd Street at the Little Thompson River Bridge Construction

North 83rd Street remains closed to all travelers between Woodland Road and Larimer County Road 4, 24-hours a day, seven days a week as a new bridge is built over the Little Thompson River. Detours have been established that require travelers to use 95th Street to move around the construction zone. The road is expected to reopen in late November/early December, weather permitting.

Baseline Road Sidewalk Construction

Baseline Road is reduced to one lane east of Cherryvale Road and west of Lawn Street between 9 a.m. and 3:30 p.m., Monday through Friday as crews work to construct sidewalks as part of a Safe Routes to School funded project. During construction hours, flaggers are being used to move all travelers safely around the construction zone. Cyclists will need to merge with motor vehicles. This project should be complete by early November, weather permitting.

Linden Drive

Two projects require Linden Drive to be reduced to one lane to safely complete operations. A flood recovery-related culvert project at North Cedar Brook Road requires the use of flaggers during work hours and a traffic signal after work hours. Timing of the signal is set to ensure that cyclists can safely move in all directions through the work zone without encountering oncoming traffic.

Paving of the Linden Loop will continue throughout next week with hope that work will be complete by Friday, Sept. 30. Flaggers are being used during work hours (8 a.m. to 4:30 p.m. - Monday through Friday) to safely move all travelers around construction activities. Both lanes are open after work hours, but the road may be rough (milled asphalt), so please use caution riding in this area.

Thank you for your patience and understanding while we work to complete these projects. Visit our Cone Zones website for up-to date on all construction being undertaken by Boulder County Transportation.

Feel free to contact me at any time with questions, comments or concerns. Have a good ride.



Andrew Barth
Boulder County Transportation