You may be trying to access this site from a secured browser on the server. Please enable scripts and reload this page.
Turn on more accessible mode
Turn off more accessible mode
Skip Ribbon Commands
Skip to main content
Turn off Animations
Turn on Animations
E-470 Road Widening Project
HOW E-470 WORKS
E-470 Weekend Pavement Operations June 28, 2019
E-470 Early Project Work Begins June 17, 2019
ABOUT THE E-470 ROAD WIDENING PROJECT: QUINCY TO I-70
E-470 begins construction this summer 2019 to add a third lane to the road in each direction between Quincy Avenue and I-70. E-470's 2014 full investment grade
Traffic and Revenue Study
indicated this eight-mile section of the road would need to be widened to maintain the level of service that our customers have come to expect and value. This current project is a continuation of the first phase of widening completed in 2017 between Parker Road and Quincy Avenue. Together, these projects allow E-470 to ensure a safe and reliable commute for our customers, improving mobility and accommodating projected growth to maintain a free-flow of traffic in the coming years.
Project elements include:
Adding a third lane in each direction on E-470 between Quincy Avenue and I-70 (8 miles), and from Ramp B (from I-70 to southbound E-470) to the Smith Road/UPRR crossing.
Widening 14 northbound and southbound bridge structures at 7 bridge locations at (1) Coal Creek, (2) Ramp B, (3) Colfax Avenue, (4) I-70, (5) 19th Avenue, (6) Ramp E (from southbound E-470 to I-70), and (7) Smith Road/UPRR.
Relocating the northbound E-470 on- and off-ramps at Quincy Avenue.
Extending High Plains Trail from Quincy Avenue to the new Stephen D. Hogan Parkway (6 miles).
Grading and drainage for a future fourth lane in each direction on E-470 from Quincy Avenue to Ramp B, and improving shoulders.
Building new wildlife deer fencing and game ramps.
Adding new overlay to existing pavement.
The E-470 Road Widening Project costs approximately $99 million and is funded through toll revenue; there are no local, state or federal funds being used. The northbound E-470 ramp relocations at Quincy Avenue are jointly funded by Arapahoe County, the South Aurora Regional Improvement Authority, and E-470. Construction is scheduled to be complete by the end of 2020.
OTHER LOCAL CONSTRUCTION PROJECTS
Overall Project Map
Story Map of Area Projects
Stephen D. Hogan Parkway
Typical Road Section Layout
Quincy Avenue / Gun Club Road Intersection Improvements
Typical Road Workzone Layout
I-70 / Picadilly Interchange
Existing Toll Plaza B - Northbound
I-70 / Airpark-Watkins Interchange Study
Proposed Toll Plaza B - Northbound
Pedestrian Bridge - North of Quincy Avenue
Pedestrian Underpass - Jewell Avenue
Quincy Northbound Ramps Relocation
Project Fact Sheet
For project information and construction updates:
Sign up for project email updates
Follow us on
Follow us on Twitter
To contact the project team:
Email us at
Call the project hotline at