Projects

Remember: two lanes of traffic on I-25 will be open in each direction during the day. While all planned lane closures on I-25 are restricted to nighttime, emergency repairs or response to motor vehicle crashes may require daytime closures. Sign up for text alerts by texting I25GAP to 21000.

Please pay close attention through the construction zone. Watch your following distance and avoid distracted driving.

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Drivers, please pay attention as construction activities increase in the middle section of the project between Greenland Road and Sky View Lane (Tomah Road). Drivers can expect traffic shifts and concrete barrier in the area. Speed limits are reduced to a 60 mph throughout the entire 18-mile corridor.
 
Work continues in the northern and southern sections of the project where crews are building wider shoulders and an Express Lane in each direction.
 
Please slow down and pay attention to traffic shifts and crews in the work zone. Two travel lanes in each direction will be open during peak travel hours. Lane closures are restricted to nighttime hours only.

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New Speed Limit is Maximum of 60 mph

Starting today, drivers along the 18-mile corridor will notice new electronic speed limit signs. These signs will replace existing speed limit signs and display a reduced speed limit of a maximum of 60 mph.
 
In addition to displaying a reduced speed limit, these electronic signs will allow the project to change the speed limits in real-time – based on weather conditions, crashes, or construction-related impacts. These speeds will be enforceable, so please remember to watch for posted speed limits and pay attention through the construction zone!

12-Hour Greenland Road Single-Lane Closure

I-25 at Greenland Road will experience a major traffic switch this week. As crews prepare for this shift, drivers can expect an overnight 12-hour, single-lane closure of northbound I-25 on Wednesday, July 17, from 6 p.m. to 6 a.m.
 
All traffic will be shifted to the southbound side (separated by a concrete barrier), so crews can begin work on the Greenland Road bridge. Please drive the posted speed limit and pay extra attention.

Upper Lake Gulch Road On-Ramp to Southbound I-25 Closed

Overnight on Monday, July 15, and Tuesday, July 16, crews will close the Upper Lake Gulch Road on-ramp to southbound I-25 from 8 p.m. to 5 a.m. for preconstruction activities. To access southbound I-25, motorists will be detoured north to Sky View Lane (Tomah Road) and turn around to access southbound I-25.

Spruce Mountain Road On-Ramp to Northbound I-25 Closed

Overnight on Wednesday, July 17, crews will close the Spruce Mountain Road on-ramp to northbound I-25 from 8 p.m. to 5 a.m. for preconstruction activities. To access northbound I-25, motorists should use Upper Lake Gulch Road.

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Closures

* Remember: planned lane closures can be affected by weather. 

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Project Offices in Castle Rock

A temporary construction office for CDOT and its contractor partner, Kraemer North America, is located near the intersection of Crystal Valley Parkway and the I-25 east Frontage Road. Please watch for vehicles entering and exiting the site throughout the duration of construction. Upon project completion, the area will be returned to its previous state; the asphalt will be removed and the area will be re-graded and seeded.

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Safety for drivers and workers is our top priority during construction.