CDOT begins construction on southbound I-225: Yosemite to I-25

Access restrictions: DTC Blvd. on-ramp traffic to southbound I-225 will be restricted to northbound I-25 and will not have access to southbound I-25.

The Colorado Department of Transportation and contractor partner KECI Colorado Inc. have begun work to ease congestion on southbound I-225 in the Denver Tech Center area. Crews will convert the shoulder into an additional lane on southbound I-225 by re-striping less than a mile from Yosemite St. to I-25. The re-striping project is expected to reduce delays by more than 50 percent on one of the most congested bottlenecks in the region.

Drivers who use the DTC Blvd. on-ramp (coming from DTC Blvd., Yosemite St. and E. Quincy Ave.) to get on southbound I-225 where it merges with I-25 will not have access to southbound I-25. They will be directed to northbound I-25. Other ways to get on southbound I-25 are Belleview and Orchard to the south and Hampden to the north. The access restriction is necessary to prevent hazardous weaving and improve traffic flow on southbound I-225. The access restriction will be permanent as part of the pilot project to reduce congestion on southbound I-225. Drivers on southbound I-225 prior to Yosemite St. will continue to have access to both southbound and northbound I-25.

Construction and travel impacts

Nighttime construction lasting up to one month – (Oct. 30 until mid to late November) Construction on southbound I-225 will take less than a month to complete. Work will occur at nights with at least one lane open on southbound I-225. The project should be completed by the end of November

Nov. 3-6 — DTC Blvd. on-ramp to southbound I-225 closed. Crews placed concrete barriers that will restrict on-ramp traffic to northbound I-25. The barriers were placed along the right shoulder of I-225 southbound. The shoulder behind the barrier were converted to a travel lane, carrying DTC Blvd. on-ramp traffic to northbound I-25. These barriers will be in place permanently beginning Nov. 5.

Restriping southbound I-225 – (Nov. 10 – 13) — Crews will restripe southbound I-225 from Yosemite St. to the I-25 interchange. Night and morning work only. Preparation work will take place the other nights.

Construction hours

Typical working hours on southbound I-225 are 11 p.m. to 5:30 a.m. Mondays through Thursdays, Fridays 11 p.m. to 10 a.m., Saturdays 9 p.m. to 10 a.m. and Sundays 9 p.m. to 5:30 a.m. Night work to occur on the DTC Blvd on-ramp as well.