Road Widening Projects

Information and Construction Updates

The next phase of E-470 road widening will start in 2022 and will stretch from I-70 to 104th Avenue. Widening the roadway allows 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.


Completed: Road Widening from Quincy Ave. to I-70


The project added a third travel lane in each direction along eight miles of E-470 from Quincy Avenue to I-70 to improve traffic flow as well as expanded bridge structures, installed new on-off ramps, upgraded signals, improved drainage, and paved this stretch to provide a smoother ride. In addition, the project included a six-mile extension of the High Plains Trail for people on bikes and on foot. Running along the west side of E-470 from Quincy Ave. to Stephen D. Hogan Pkwy., the trail extension connects to five neighborhoods in the region and features a 10-foot-wide concrete path in addition to two-foot-wide shoulders, providing ample paved space for people to walk and bike. The expansion of the trail represents E-470’s commitment to supporting member jurisdictions and local communities through access to multi-modal transportation options.


The $99 million project was funded primarily through toll revenue, with no local, state or federal funds, and without increasing toll rates. The project video can be viewed below.

Project Highlights
• More than 7,200 cubic yards of structural concrete was poured.
• 180,000 tons of asphalt was placed.
• 15 miles of new or reset wildlife fencing was installed along the roadway.
• 800,000 cubic yards of earthwork was completed.


Project Documents
Project FAQs
Project Fact Sheet
Project Schedule
Overall Project Map
Typical Road Section Layout
Typical Road Work Zone Layout
High Plains Trail Fact Sheet
Pedestrian Bridge North of Quincy Ave.
Pedestrian Underpass Jewell Ave.
Quincy Northbound Ramp Relocation

Related Information

Quincy Ave./Gun Club Road Intersection Improvements

Learn more about Arapahoe County’s intersection improvement project.

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Story Map of Area Projects

Learn more about the multiple infrastructure and roadway improvement projects in east Aurora to address growing traffic in the area and improve access to area development.
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Driving E-470

Learn more about the technology on E-470 that makes driving a breeze.

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