I-270 bridge repairs and resurfacing begin in late September

Project Update

September 26, 2023 - Denver/Central Colorado - Single lane closures on I-270 begin September 28, with most travel impacts over the weekends

Adams County — Starting September 28, the Colorado Department of Transportation and contractor Kiewit Infrastructure will begin repairs to both eastbound and westbound bridges on I-270 in Commerce City.

Repairs include replacing the old asphalt with reinforced concrete on six bridge decks. The reinforced concrete will strengthen the bridge decks, making for a safer and more durable driving surface. The bridges need to be repaired immediately to prevent lengthy and unexpected lane closures in the future due to emergency pavement repairs. The project is a necessary interim improvement until the bridge structures can be completely replaced in the future as part of the I-270 Corridor Improvements Project.

Weekend Work

Most of the work will occur over the next several weekends until the end of the year to complete the project as soon as possible and before the brunt of winter weather. There will be single lane closures on I-270 between York Street and Vasquez Boulevard from 9 p.m. Friday to 1 p.m. Saturday and from 9 p.m. Saturday to 1 p.m. Sunday. Most of the work will occur in one direction with no or minimal impacts in the other direction, but there will be some weekends with a single lane closure in each direction. Significant delays are expected on Saturdays and Sundays between 11 a.m. and 1 p.m. Delays up to 25 minutes can be expected. Heavy delays are also expected from 9 p.m. to 10 p.m. on Fridays.

Upcoming Project Schedule and Traffic Impacts, Sept. 28 through Oct. 1

The left lane of eastbound I-270 will be closed one-quarter of a mile over the South Platte River at the following times:

  • 10 p.m. Thursday, Sept. 28 to 5 a.m. Friday, Sept. 29
  • 9 p.m. Friday, Sept. 29 to 1 p.m. Saturday, Sept. 30

The left lane of eastbound I-270 will be closed one-quarter of a mile over the Burlington Canal at the following time:

  • 9 p.m. Saturday, Sept. 30 to 1 p.m. Sunday, Oct. 1

Expect up to 25-minute delays on eastbound I-270 Saturday and Sunday from 11 a.m. to 1 p.m. No impacts to westbound I-270.

Other Impacts

  • Loads wider than 12 feet will be restricted through the work zone
  • There will be at least one lane of travel open in each direction during construction
  • During the week, Monday through Thursday, there will be overnight intermittent single lane closures from 10 p.m. to 5 a.m.
  • Since the work is happening on multiple bridges, check for specific information on times and locations of the lane closures by going to the project website or COtrip.org
Image of map that shows the project limits of the I-270 work between Vasquez Boulevard and York Street.

Project Information

For additional information about this project:

Know Before You Go

Travelers are urged to “know before you go.” Gather information about weather forecasts and anticipated travel impacts and current road conditions prior to hitting the road. CDOT resources include:

Remember: Slow For The Cone Zone

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!

Download the COtrip App!

The new free COtrip Planner mobile app was designed to meet the growing trend of information on mobile and tablet devices for the traveling public. The COtrip Planner app provides statewide, real-time traffic information, and works on mobile devices that operate on the iOS and Android platforms. Visit the Google Play Store (Android devices) or the Apple Store (iOS devices) to download!