Traffic Impacts
Construction Activities & Impacts
Work this Week | April 20 to April 26
Lane closures for the week of April 20:
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Monday through Friday: Intermittent closures with flaggers on WCR 38, west of I-25.
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Monday & Tuesday: Intermittent closures with flaggers on WCR 34, west of I-25.
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Monday and Tuesday: Overnight southbound TEL and left lane closure, north of US 34
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Monday through Wednesday: Intermittent closures with flaggers on WCR 32, under I-25.
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Friday & Saturday: Southbound I-25 on-ramp closure at WCR 34.
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Ongoing: Full closure of Valley Road under I-25 through summer 2025.
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 speed limit on the project has been lowered to 65 mph. Please obey speed limit signs.
Monday through Friday, 7 a.m. to 5 p.m., Weld County Road 38, west of I-25, will have brief, intermittent closures controlled by flaggers for dirt hauling operations.
Monday and Tuesday, 7 a.m. to 5 p.m., Weld County Road 34, west of I-25, will have brief, intermittent closures controlled by flaggers for dirt hauling operations.
Monday through Wednesday, 7 a.m. to 5 p.m., Weld County Road 32, under I-25, will have intermittent closures controlled by flaggers while crews work on the bridge overhang.
Friday at 9 p.m. through Saturday at 5 p.m., the southbound I-25 on-ramp at WCR 34 will be closed for pipe installation across the roadway and asphalt patching.
- Detour for southbound I-25 travel from WCR 34: Turn north to Colorado Highway 56 (exit 250), turn around and enter southbound I-25.
Additional Closures:
A temporary closure of Valley Road is ongoing to allow crews to reconstruct the bridge over the road. This closure will be in place through summer 2025. Motorists should plan accordingly, as no detour route is available.
Southbound I-25 traffic shifted to the northbound lanes between Colorado Highway 56 and Colorado Highway 66 into a head-to-head configuration and will be in place through 2025.
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.
As of Friday, Dec. 15, 2023, the I-25 North Express Lanes, Berthoud to Fort Collins, hit a major milestone and is now substantially complete.
While most of the work in this section of I-25 is done, CDOT and the contractors will have various intermittent lane closures through spring 2024 to finish final project punch list tasks. The Express Lanes are now open for testing, but drivers should also prepare for intermittent closures of these lanes in 2024. Express Lane tolls are waived during the testing phase.
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.
Motorists should expect various overnight and lane closures, including in the Express Lanes, while the last of the construction wraps up and tolling equipment is installed. The Express Lanes are anticipated to begin tolling in 2024. Once tolling begins in 2024, motorists are encouraged to sign up for an ExpressToll account to save an average of 40% on tolls.
No major traffic impacts this week.
There will be nightly, overnight closures of the southbound I-25 Tolled Express Lane and the southbound I-25 left lane, just north of US Highway 34, Monday, April 21, 9 p.m. to 2 a.m., and Tuesday, April 22, 9 p.m. to 5 a.m. These closures are required for crews to repair concrete panels.
