E-470 is committed to following guidance set by the CDC and CDPHE in helping to slow and prevent the spread of COVID-19. At this time, the road widening project taking place on E-470 from Quincy Avenue to I-70 is continuing, with strict safety measures to protect construction teams and the public.

As part of these measures, a dedicated task force has been set up to ensure project teams are adhering to the latest guidance set by public health officials. Any previously-scheduled indoor meetings have been cancelled or are now being held virtually. Crews are practicing social distancing in the course of their work and all small group meetings taking place outside are being held to maintain social distancing.

E-470 and its sub-contractors will continue to follow this guidance and are ready to adjust to any new safety measures.


Relocated Quincy Ave Off Ramp

In October, the relocated off ramp to Quincy Ave via Gun Club Rd. is expected to reach completion. This off ramp was relocated to help elevate traffic and congestion passing through Quincy Ave. Arapahoe County is continuing work on this intersection and anticipates finishing these improvements in 2021.

Permanent Striping

Lane closures will continue to take place on northbound and southbound E-470 as permanent striping takes place on the new third lanes between 6th Pkwy./Stephen D. Hogan Pkwy. and the southbound E-470 off ramp to the I-70 interchange.

All future work is weather dependentFor up-to-date closure information, stay tuned on our E-470 Facebook or Twitter page.

PROJECT UPDATE: October, 2020

E-470 Bridges

In September, crews completed the asphalt overlay on the E-470 bridges over I-70, 19th Ave., Colfax Ave. and the on and off ramps to the I-70 interchange. Crews also completed the final painting and structure work for these bridges.

Substructure was also completed on the E-470 bridges over Smith Rd. and Union Pacific Railroad with girders being erected in September. 

Relocated E-470 Ramps

Subgrade and asphalt paving was completed for the relocated off ramp from E-470 to Quincy Ave. via Gun Club Rd. Next, crews will move on to the final asphalt finishing and painting for the off ramp, and will begin the subgrade paving for the relocated on ramp.  

Asphalt Paving

The final asphalt surfacing was completed on northbound and southbound E-470 between 6th Pkwy./Stephen D. Hogan Pkwy. and the southbound off ramp to the I-70 interchange. Next, crews will move on the final striping of the third lanes in both directions.

Water Drainage

In September, crews worked on eight water quality ponds located along the roadway. These ponds are part of a larger stormwater drainage system and are expected to reach completion in October. 

High Plains Trail

This past month crews continued to tie areas of the trail together with paving, and placed barrier walls to separate vehicle traffic from trail traffic at State Highway 30 and Hampden Ave.   

Click here to sign up for project and construction updates, or email to contact the project team. 


E-470 Road Widening Project Update - August 22, 2019
E-470 Road Widening Project Update - September 27, 2019
E-470 Road Widening Project Update - December, 2019
E-470 Road Widening Project Update - April, 2020


High Plains Trail Fact Sheet Story Map of Area Projects
Project FAQs Stephen D. Hogan Parkway
Project Fact Sheet Quincy Avenue / Gun Club Road Intersection Improvements
Overall Project Map​I-70 / Picadilly Interchange
Project Schedule​​​I-70 / Airpark-Watkins Interchange Study
Typical Road Section Layout
Typical Road Workzone Layout
Existing Toll Plaza B - Northbound
Proposed Toll Plaza B - Northbound
Pedestrian Bridge - North of Quincy Avenue
​​Pedestrian Underpass - Jewell Avenue
Quincy Northbound Ramps Relocation


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. 
Ramp Relocation
  • Relocating the northbound E-470 on- and off-ramps at Quincy Avenue.
Trail Extension
  • Extending High Plains Trail from Quincy Avenue to the new Stephen D. Hogan Parkway (6 miles).
Construction Improvement
  • 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.

For project information and construction updates:
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To contact the project team:
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Call the project hotline at 303-536-5969