Nighttime resurfacing work on I-225, from I-25 to Parker Rd, to begin in June

June 3, 2019 - Denver Metro Area (Denver and Arapahoe Counties)

On Sunday night, June 9, the Colorado Department of Transportation, in association with Brannan Sand and Gravel, will begin a resurfacing project on Interstate 225 (I-225), from Interstate 25 (I-25) to the intersection of Parker Rd. (MP 0.28-4.17). During nighttime operations, crews will work simultaneously on both directions of the highway until late October 2019, when the project is expected to be completed.

The goal is to improve longevity and safety of the highway by creating a smoother driving surface, performing minor bridge deck repairs, and replacing the existing guardrail in the area to bring them up to the current standards. The project will also add a lane at the connection of the northbound off-ramp to Parker Rd. and replace an existing traffic signal to better accommodate traffic in the area.

To minimize impacts to the traveling public, most of the work will be conducted overnight; however, some ramp work will take place during the day as allowed.


Typical working hours are 8 p.m. to 5:30 a.m., Sunday night through Friday morning, and crews will maintain one lane open in both northbound and southbound directions. As the project progresses, motorists should expect overnight closures of the on- and off-ramps, including the DTC ramps, Tamarac ramps, and Parker Rd. ramps. Detours will be provided.

CDOT asks motorists to be prepared for traffic impacts that include:

  • Shoulder and multiple lane closures, including in the on- and off-ramps
  • Speed limit reductions in the work areas
  • Oversize load restrictions to widths of 11 feet during bridge work
  • Temporary delays and slowdowns during paving operations to allow for trucks to pull in and out of the work zone.


  • Timeline: June to late October 2019
  • Construction Cost: $9.6 million
  • Contractor: Brannan Sand and Gravel

Work Description: This project will resurface a 4-mile stretch of I-225, including a mill and fill operation of the existing pavement for the mainline and on- and off-ramps. Work will also include improvements to ADA curb ramps, minor bridge deck repairs, guardrail improvements and replacing overheard signs within the project area.



The following tips are to help you stay safe while traveling through maintenance and construction work zones.

  • Do not speed in work zones. Obey the posted speed limits.
  • Stay Alert! Expect the unexpected.
  • Watch for workers. Drive with caution.
  • Don't change lanes unnecessarily.
  • Avoid using mobile devices such as phones while driving in work zones.
  • Turn on headlights so that workers and other drivers can see you.
  • Be especially alert at night while driving in work zones.
  • Expect delays, especially during peak travel times.
  • Allow ample space between you and the car in front of you.
  • Anticipate lane shifts and merge when directed to do so.
  • Be patient!



To heighten safety awareness, CDOT recently announced its Whole System — Whole Safety initiative. This project takes a systematic statewide approach to safety combining the benefits of CDOT’s programs that address driving behaviors, our built environment and the organization's operations. The goal is to improve the safety of Colorado’s transportation network by reducing the rate and severity of crashes and improving the safety of all transportation modes. The program has one simple mission—to get everyone home safely.



CDOT has approximately 3,000 employees located throughout Colorado, and manages more than 23,000 lane miles of highway and 3,429 bridges. CDOT also manages grant partnerships with a range of other agencies, including metropolitan planning organizations, local governments and airports. It also administers Bustang, the state-owned and operated interregional express service. Governor Polis has charged CDOT to further build on the state’s intermodal mobility options.