Traffic Impacts
Construction Activities & Impacts
Work for the week | Jan. 18
Lane closures for the week of Jan. 18:
- Sunday and Monday: Overnight southbound I-25 Express Lane and left lane closures between CO 60 and 56.
- Monday: Overnight southbound I-25 left lane closure at MP 249, just south of WCR 44.
- Tuesday: Overnight southbound I-25 right lane closure at WCR 32.
- Wednesday through Friday: Ongoing northbound I-25 on- and off-ramp closures at WCR 34.
- Wednesday: Overnight northbound I-25 alternating left and right lane closures at CO 66.
- Ongoing: Full closure of I-25 E. Frontage Road access to WCR 34.
The speed limit on the project has been lowered to 65 mph. Please obey speed limit signs.
Sunday and Monday, 9 p.m. to 5 a.m., the southbound I-25 Express Lane and left lane will be closed between Colorado Highway 60 and Colorado Highway 56 for sign removals.
Monday, 9 p.m. to 5 a.m., there will be a southbound I-25 left lane closure near the Little Thompson River (Mile Point 249, just south of Weld County Road 44) for sign installation.
Tuesday, 9 p.m. to 5 a.m., there will be a southbound I-25 right lane closure near Weld County Road 32 for camera installation.
Wednesday, 8 p.m. through Friday, 9 p.m., the northbound I-25 on- and off-ramp at Weld County Road 34 will be closed as crews stripe lanes and move barrier to complete the new traffic alignment. Northbound I-25 traffic will shift to the southbound I-25 lanes into a head-to-head configuration between Colorado Highway 66 and CO 56.
- Wednesday: Traffic intending to access northbound I-25 from WCR 34 will travel south to Colorado Highway 119, turn around and enter northbound I-25.
- Thursday and Friday: Traffic intending to access northbound I-25 from WCR 34 will
travel south to CO 66 (exit 243), turn around and enter northbound I-25. - Traffic intending to exit northbound I-25 at WCR 34 will continue north to CO 56 (exit 250), turn around and travel south to WCR 34 (exit 245).
Wednesday, 8 p.m. to 5 a.m., there will also be northbound I-25 alternating left and right lane closures at CO 66 for a traffic shift to the new head-to-head configuration on the southbound lanes.
Wednesday, 11 p.m. to 5 a.m., the northbound I-25 on-ramp from CO 66 will be closed to prepare for a traffic shift.
- CO 66 traffic intending to enter northbound I-25 will travel south to CO 119 (exit 240), turn around and enter northbound I-25.
There will be a temporary full closure of Weld County Road 32 under I-25 starting Monday, Feb. 2 at 5 a.m., through Friday, Feb. 6 at 5 p.m., to allow crews to demolish the existing bridge over the road.
- Eastbound WCR 32 traffic will take Weld County Road 7 south to CO 66, turn east to Weld County Road 9.5, and turn north to WCR 32.
- Westbound WCR 32 traffic will take WCR 9.5 south to CO 66, turn west to WCR 7, and turn north to WCR 32.
I-25 E. Frontage Road Access Impacts:
CDOT permanently closed the I-25 E. Frontage Road access to WCR 34, in Mead, on Monday, Jan. 5 at 5 a.m. Closing frontage road access to WCR 34 is required for crews to extend the North Creek Box Culvert as part of the I-25 North Express Lanes Project. This closure is part of CDOT’s continued coordination with the Town of Mead and Weld County, who are building a 2-mile portion of High Plains Boulevard between WCR 32 and Weld County Road 36.
Once opened (projected summer 2026), traffic that previously used the frontage road will use High Plains Boulevard, and the frontage road use will transition to private property and utility access only. As shown on the map, local motorists will be able to access their properties
between WCR 34 and WCR 36 but thru traffic will not be allowed. Similarly, local motorists will be able to access their properties between WCR 34 and WCR 32 but no thru traffic will be allowed.
Starting mid-February, in preparation for accommodating the I-25 northbound lane widening and the frontage roadway transition, construction crews will begin to reduce the asphalt roadway width on isolated sections of the frontage road from Mulligan Street (northeast quadrant of CO 66 and I-25) to CO 56.
During construction, the frontage road will be closed south of WCR 32 so work crews can
complete I-25 widening and drainage work. Viable detour routes and speed limit reductions will be posted. Please drive carefully through the work zones and reduced roadway section.
Approximately one mile of the southbound I-25 Express Lane, between mile points 251 and 250, from approximately Weld County Road 44 to Weld County Road 46, is closed through late 2027.
The I-25 North Express Lanes, Berthoud to Fort Collins, opened in December 2023 and finalized finishing touches in the spring of 2024.
Since then, the Express Lanes have been open for use in a testing phase, allowing drivers to take advantage of the new Express Lanes, without paying a toll.
The Express Lanes are currently anticipated to begin tolling in early 2026. Once tolling begins in 2026, motorists are encouraged to sign up for an ExpressToll account to save an average of 40% on tolls.
For future project updates and information, please continue to check the project website and CoTrip.org.
Drivers are encouraged to try the Express Lanes by entering through the dashed white lines. When using the lanes, drivers are reminded to follow these rules to ensure the safety of everyone on the
road:
- Do not cross the solid white lines (tickets for violations start at $75 each).
- Enter and exit at the designated areas only, which are marked with a white dotted line.
- Obey posted speed limits. The Express Lanes cannot be used to pass slower moving vehicles.
No major traffic impacts this week.
No major traffic impacts this week.
