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.


I-70 and 19th Ave Bridge Superstructure

In March, crews continued working on the superstructure of the E-470 bridges over I-70 and 19th Ave. This work included setting girders for the third lane expansions on each bridge. Following this, crews will continue work to prepare for the deck placement and bridge wall construction to complete the bridge widening.

E-470 over the Southbound on-ramp from I-70 and Colfax Bridges

With some warmer weather in March, crews were able to pour two of the four decks for the E-470 bridges over the southbound on ramp from I-70 and Colfax Ave. Crews will aim to finish the remaining deck pours this spring, and move onto finishing the lanes for public travel.

Coal Creek Bridge Backfill

With the new decks poured for the third lane expansion on Coal Creek Bridge, construction is now taking place to backfill the bridge approach, which will provide foundational support for the approach slabs.

E-470 over the Southbound off-ramp to I-70

Traffic beneath this bridge was shifted to allow crews to install substructure piers and abutments to support the third lane expansion. Next, crews will look to install girders for the additional lanes. 

High Plains Trail Work

In March, crews performed earthwork grading for the expansion of the High Plains Trail from Quincy Avenue to Stephen D. Hogan Parkway. In addition, foundation work started for the pedestrian bridge in Country Park, just north of Quincy Avenue, which will allow the trail to cross in multiple lowland and riparian areas.


E-470 over the Southbound on-ramp from I-70 and Colfax Bridges

In the coming week, crews will complete the decks of the E-470 bridges passing over the southbound on-ramp from I-70, and Colfax Ave. Once these decks are complete, crews will work on approaches and railing to tie in earthwork and paving.

I-70 and 19th Ave Bridge Spans

In April, the installation of bridge spans on the E-470 bridges over I-70 and 19th Ave will take place for the new third lane expansions. Due to the higher volume of traffic on I-70, the work on this bridge will take place at night to limit the disruption on the traveling public.

All future work is weather dependent. 

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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 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.

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