The Colorado Department of Transportation announced on Apr. 15 that overnight lane and full closures will continue this week and weekend on northbound Colorado Highway 157 (Foothills Parkway) at Pearl Street in Boulder as crews work to remove and replace concrete panels.
The closures are necessary to ensure the safety of motorists and workers while reducing the overall duration of traffic impacts. The department said drivers should expect up to 15-minute delays during the closure periods, with alternate routes encouraged over the weekend to avoid congestion.
According to the release, northbound CO 157 will be reduced to a single lane on Wednesday and Thursday nights from 7 p.m. to 7 a.m., with the Pearl Street on-ramp closed during these hours. Detours will direct motorists via Pearl Street west to 30th Street or east to 55th Street, then north to Valmont Street before re-entering CO 157. No daytime impacts are expected Wednesday through Friday.
A full closure of northbound CO 157 at Pearl Street is scheduled from Friday, April 17 at 9 p.m. through Sunday morning, April 19 at 4 a.m., with traffic detoured off CO 157 at the Pearl Street exit before re-entering via the northbound on-ramp. Southbound lanes will remain open throughout this period. From Sunday morning through Monday evening, one lane will remain open until early Monday morning; however, ramp closures and detours will persist until Monday evening.
Uniformed traffic control officers will be present onsite for assistance with traffic flow during construction activities. Motorists are reminded by officials to slow down near work zones and maintain safe distances around workers and equipment.
The Colorado Department of Transportation oversees transportation infrastructure across Colorado as outlined on its official website. The agency builds and maintains interstates, U.S. highways, state highways, and administers grants for aviation and transit according to its website. Shoshana Lew serves as executive director for CDOT according to official information.
CDOT aims for integrated solutions that improve quality of life for residents according to its official website, delivering an effective multi-modal system that safely transports people, goods, and information while supporting environmental standards as stated by CDOT. The department operates within highway maintenance as well as support for aviation and transit sectors per their website.
For real-time updates about lane closures or road conditions related to this project or others statewide, drivers can visit COTrip.org.



