Expect lengthy delays on westbound I-70 near Idaho Springs early next week (Dec. 20-22) | VailDaily.com
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Expect lengthy delays on westbound I-70 near Idaho Springs early next week (Dec. 20-22)

Drivers are being advised to avoid travel if possible during construction

The Colorado Department of Transportation is working to complete road construction so the new westbound express lane of Interstate 70 can open as soon as possible, which is estimated for early 2021 depending on the weather and other factors. Currently, there is already an eastbound express lane, pictured. (Colorado Department of Transportation
Daily file photo)

The Colorado Department of Transportation plans to get as much paving done as possible before the long-term winter temperatures set in on the Westbound I-70 Mountain Express Lane project. Paving work can be done only during daytime hours when temperatures are warmer. Closures will continue through the night to get other work done.

One lane on westbound Interstate 70 will be closed in the Idaho Springs area (mile marker 241 to mile marker 239) during these times:

  • 3 p.m. into the night Sunday, Dec. 20
  • 9 a.m. to 9 p.m., Monday, Dec. 21
  • 9 a.m. to 9 p.m., Tuesday, Dec. 22

The schedule could change depending on the weather.



Motorists can expect delays of up to two hours during peak travel times.

If motorists are planning to travel the westbound I-70 corridor, they are urged to leave early before construction starts.



There will be no planned lane closures Friday, Dec. 18, through Sunday afternoon, Dec. 20, and no planned lane closures through the Christmas holiday, Wednesday, Dec. 23, through Monday, Dec. 28. There will be no further planned daytime closures on this project through the winter. Should more paving work need to be done, that work will take place when the temperatures are warmer in the spring.

Know before you go

Travelers are urged to “know before you go.” Gather information about weather forecasts and anticipated travel impacts and current road conditions prior to hitting the road. CDOT resources include:

  • Road conditions and travel information: http://www.COtrip.org
  • Chain and traction law: http://www.codot.gov/travel/colorado-chain-law
  • Sign up for project or travel alerts: bit.ly/COalerts
  • See scheduled lane closures: codot.gov/travel/scheduled-lane-closures.html
  • Connect with CDOT on social media: Twitter @coloradodot; and Facebook facebook.com/coloradodot

About the project

Crews are working to complete road construction so the new express lane can open as soon as possible, which is estimated for early 2021 depending on the weather and other factors. Once the new express lane opens, tolls will be waived until summer or fall of 2021 when the tolling infrastructure is in place and has been tested.

When completed, there will be an express lane on westbound I-70 from the Veterans Memorial Tunnels to the Empire Interchange. Similar to the eastbound lane already in use, this 12-mile long managed lane will feature traffic management systems to reduce congestion and provide westbound drivers with a reliable, time-saving option during peak travel periods. The project is also improving the alignment of the road and repaving the surface to improve safety and make for a smoother drive.


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