Arapahoe County Public Works and Development, along with contractor partner Concrete Express Inc., this week started initial roadway preparations and earthwork outside the active lanes on Iliff Avenue as part of a $25.64 million Iliff Avenue Corridor Improvement Project between South Parker Road (CO 83) and Quebec Street.
To realign traffic lanes on Parker Road and Iliff Avenue and begin work outside the roadway, crews will conduct an intermittent nighttime single lane closure, starting at 6 p.m. Saturday, Sept. 11 on southbound Parker Road at Iliff Avenue until 5:30 a.m. Sunday, Sept. 12.
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
- Intermittent lane closure on southbound Parker Road at 6 p.m. Saturday, Sept. 11, at Iliff Avenue until 5:30 a.m. Sunday, Sept. 12.
- No traffic impacts from Sept. 3 through Sept. 10.
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
Email: Iliffave@gmail.com
Project Webpage: www.arapahoegov.com/iliffcorridor