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The original item was published from 9/17/2021 2:54:40 PM to 9/24/2021 12:21:28 PM.

News Flash

Arapahoe County News

Posted on: September 17, 2021

[ARCHIVED] Work on the Iliff Ave. Corridor Improvement Project will require lane closures


Arapahoe County Public Works and Development, along with contractor partner Concrete Express Inc., has begun existing roadway and sidewalk removals, earthwork and underground testing outside the active lanes as part of the Iliff Avenue Corridor Improvement Project between South Parker Road (CO 83) and Quebec Street. 

To remove the existing median to open the roadway for future widening, crews will conduct daytime single lane closures Monday, Sept. 19, through Friday, Sept. 24. 

Planned improvements to Iliff Avenue include: four-lane corridor with acceleration and deceleration lanes, intersection safety modifications, bike lane and additional ADA-compliant sidewalk installations, transit stop enhancements, multi-use path/crosswalk improvements, traffic signal optimization with signal detection/ video monitoring and equipment upgrades.

Travel Impacts

  • 8:30 a.m. through 3:30 p.m. Monday, Sept. 19, through Friday, Sept. 24: 
    • Daytime left lane closures on westbound Iliff Avenue from Emporia Street to the Highline Canal Trail. 
    • Daytime left lane closures on eastbound Iliff Avenue from Dayton Street to Dayton Way. 

All work is weather-dependent and subject to change.

In the future, travelers can expect daytime and nighttime traffic impacts. Intermittent daytime and nighttime lane closures should be expected. Minor impacts to bicycle and pedestrian access will be required. Access to transit stops will be maintained throughout construction. 

Stay Informed

More information is available at: 
Phone: 720-773-0567
Project Webpage:

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