Weekend closure of westbound I-76 needed for Dahlia Street bridge repair

Travel Advisory

June 27, 2024 - Denver Metro/Central Colorado - Closure from June 28 to 30

Commerce City — Westbound I-76 at Exit 9 under the Dahlia Street bridge and Dahlia Street over I-76 will be closed 10 p.m., Friday, June 28 until 5 a.m. Monday, July 1. The closures are needed for repair work to the Dahlia Street bridge that was damaged when a semi carrying equipment struck the bridge last March.


  • Westbound I-76 traffic will use the off-ramp to West US 6/South US 85 (Exit 9), continue south to 74th Avenue/CO 224, turn west and continue to the westbound I-76 on-ramp.
  • Northbound Dahlia Street traffic will detour to east on 74th Avenue/CO 224, turn north via US 6/US 85 to join eastbound I-76, exit at 88th Avenue (Exit 10) and go west. Alternatively, detour west at 74th Avenue/CO 224, go east on the I-76 Frontage Road to Dahlia Street.
  • Southbound Dahlia Street traffic will detour west on the I-76 Frontage Road, turn east on 74th Avenue/CO 224 and continue to Dahlia Street.

The detour map is displayed below:

Map of full westbound I-76 closure for Dahlia Street bridge repair
Detour map showing westbound I-76 closed at Dahlia Street and Dahlia Street bridge closed.

Once completed this project will fully restore the bridge to its original form and reopen northbound Dahlia Street over I-76. Work primarily consists of restoring damaged components and straightening bridge girders, using a heat straightening process. The project is expected to be completed in mid-July.

Ongoing Traffic Impacts

Once this weekend’s work is completed, there will be ongoing overnight single lane closures on I-76 during the week from 7 p.m. to 5 a.m., and on weekends from 8 p.m. to 7 a.m. Northbound Dahlia Street over I-76 will continue to be closed until the project is completed.

Project Contact Information

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!

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