CO 21 Powers Boulevard and Airport Road Interchange

About the Project:

The Colorado Department of Transportation is constructing a diverging diamond interchange at the intersection of Airport Road and Powers Boulevard (Colorado Highway 21 / US Highway 24) to replace the existing signalized intersection. Work includes bridge and ramp construction, placing embankment, concrete paving, overhead sign structure installation, new traffic signal systems and permanent water quality ponds.

Project Benefits

These improvements will benefit the public by:

• Enhancing safety and mobility for travelers
• Improving traffic flow and visibility
• Providing a smoother driving surface
• Increasing the longevity of the highway

Work Schedule:

• Mostly daytime work hours ranging from 7 a.m. to 5 p.m. Monday through Friday.
• Night and weekend work are possible
• Phased construction from July 2024 - July 2026

Traffic Impacts:

Motorists can expect the following impacts during the construction:

• Travelers should expect intermittent lane closures, traffic shifts and alternating traffic
• Speed limit reductions and width restrictions will be in place as needed
• Watch for vehicles entering and exiting the work zone
• Refer to COtrip.org for real-time travel conditions and road closures

Work this Week & Lane Closures
Powers & Airport Road Interchange