Update: Partial closure of Dahlia Street bridge over I-76 in Commerce City

Travel Advisory

March 21, 2024 - Central Colorado - Northbound lane will be closed until fall for repairs to damage caused by a tractor-trailer hit

Commerce City — The northbound lane of the Dahlia Street bridge over I-76 will remain closed until the early fall for repairs to girder damage. The damage was caused when a tractor-trailer struck the edge of the bridge last week (3/18). The single lane that was closed on westbound I-76 under the bridge re-opened early this morning (3/21). The bridge is safe in its current condition with the northbound lane closed.

The Colorado Department of Transportation will continue to monitor the bridge until a contract is awarded to repair the bridge later in the spring with construction following.

Ongoing traffic impacts of the Dahlia Street bridge over I-76

The bridge is closed to northbound motorists. A northbound detour is in place:

East on CO 224 (74th Street)
North on US 85
East on I-76
West on 88th Avenue to Dahlia Street

The bridge is open to southbound traffic. Motorists are advised to drive with caution through the area.

Tractor-trailer after it struck a bridge over I-76 on 318

Side view of tractor-trailer rolled over after in struck a bridge over I-76 on 318

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:

Road conditions and travel information: COtrip.org
Download the COtrip Planner app: bit.ly/COtripapp
Sign up for project or travel alerts: bit.ly/COnewsalerts
See scheduled construction lane closures: bit.ly/laneclosures
Connect with @ColoradoDOT on social media: Twitter, Facebook, Instagram and YouTube

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!