I-70 Twin Tunnels Weekly Traffic Advisory

May 24, 2013 - Central Eastern Colorado/CDOT Region 1 - WEEKLY TRAFFIC ADVISORY

IDAHO SPRINGS – Traffic is moving smoothly on the two-lane, eastbound Interstate 70 frontage road around the Twin Tunnels.  Please remember to anticipate slower traffic and a 35 mph speed limit while the detour remains in place through late 2013.

Please Note: Blasting and/or rock scaling operations will require 20 to 30 minute traffic stops at various times throughout the week, not including peak travel periods such as Saturday mornings or Sunday afternoons. The daily blasting schedule is posted daily on the project hotline, (303) 327-4034 or webpage –

In addition to the frontage road detour, the Colorado Department of Transportation (CDOT) will have the following lane closures taking place, east and/or west of the Twin Tunnels, for concrete and barrier placement, restriping and truck hauling operations:

  • Tuesday, May 28
    • 7 a.m. to 5 p.m. – one lane closed eastbound
  • Wednesday, May 29
    • 7 a.m. to 5 p.m. – one lane closed eastbound
    • 6 p.m. to 6 a.m. Thursday – one lane closed eastbound
  • Thursday, May 30
    • 7 a.m. to 5 p.m. – one lane closed eastbound
    • 6 p.m. to 6 a.m. Friday – one lane closed eastbound
  • Friday, May 31
    • 7 a.m. to noon – one lane closed eastbound
  • Saturday, June 1
    • 7 a.m. to noon – one lane closed eastbound

While these lane closures are in place, a 35 mph speed limit will be in effect and traffic slowing and delays up to 30 minutes should be expected, primarily during daylight hours.

To receive project updates via e-mail, visit and click on the cell-phone icon in the upper right-hand corner.  The link takes you to a list of items you can subscribe to, including I-70 West, Denver to Glenwood Springs. Updates also are available via Twitter @coloradodot and on CDOT’s Facebook page at

Also, CDOT’s new smartphone application provides drivers with easier access to I-70 traveler information. It includes travel speeds and times, road conditions, incidents, road work; and feeds from CDOT's closed-circuit television cameras and alerts.  Text CDOT to 25827 or download CDOT Mobile from your App store.

Adding a third lane to eastbound I-70 from east Idaho Springs to the bottom of Floyd Hill is part of CDOT’s strategy at reducing congestion along one of the state’s busiest corridors which, in turn, will improve gas mileage and air quality.

Colorado: The Official State Web Portal