I-70 Interchange

The project consists of building a new interchange on I-70 east of E-470.

Work includes:

Realigning the south portion of Colfax Avenue/I-70 Frontage Road
Adding drainage ponds
Building on and off ramps
Constructing a new bridge spanning I-70
Constructing roundabouts on the north and south ends of the interchange that will eventually tie into future roadways

Provide much-needed access to developments from Aurora and Adams County
Improve connectivity to Denver International Airport and the adjacent Colorado Aerotropolis development

Motorists can expect the following impacts during the period of construction:

24/7 shoulder closures are in place in both directions of I-70 and on the East Colfax Avenue/I-70 Frontage Road within the project limits.
A minor traffic shift will be in place on westbound I-70 later in September after temporary barrier is set.
Single overnight lane closures will be in place, as needed, in both directions of I-70 within the project limits from 6 p.m. to 6 a.m., Sunday to Thursday.
Single lane closures can be expected in both directions of I-70 within the project limits at any time on Saturday and Sunday.
A full closure of I-70 will be in place to set girders for the new bridge structure later in the project, with detour routes posted.
Shoulder closures, traffic shifts, lane closures and changing conditions will exist on the East Colfax Avenue/I-70 Frontage Road.
Speeds are reduced to 65 mph on I-70 within the project limits.
A 12-foot width reduction will be in place on mainline I-70.
The speed limit on the Frontage Road is 45 mph.
Shoulder narrowing will exist on I-70.
Please obey posted signs, drive slowly, and watch out for construction crews.
Signs and construction devices are present to alert motorists to the work zone, traffic impacts and other restrictions.
Construction schedules are weather dependent and subject to change.
Refer to COtrip.org for real-time travel conditions and road closures.

Nearby Project Impacts