Work on the Iliff Avenue Corridor Improvement Project will require lane closures between Parker Road (CO 83) and the Highline Canal Trail

Sept. 17, 2021
ARAPAHOE COUNTY — Arapahoe County Public Works, 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, September 19 through Friday, September 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.

• 8:30 a.m. through 3:30 p.m., Monday, September 19 through Friday, September 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.

Intermittent daytime and nighttime lane closures should be expected throughout the duration of the construction project. Minor impacts to bicycle and pedestrian access will also be required. Access to transit stops will be maintained throughout construction.
People are encouraged to email the project team or call the hotline number below to sign up for travel updates, as work schedules are subject to change.

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