Twin Tunnels traffic advisory |

Twin Tunnels traffic advisory

Daily staff report

IDAHO SPRINGS – The eastbound Interstate 70 frontage road is operating and traffic is moving smoothly through the two-lane, one-mile detour route, allowing full-scale excavation work to proceed at the Twin Tunnels. Drivers should anticipate slower traffic and a 35 mph speed limit while the detour is in place through late 2013.

Blasting and/or rock scaling operations will require 20-30 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

In addition to the detour, the Colorado Department of Transportation will have the following lane closures taking place next week, east and/or west of the Twin Tunnels, for the installation of blast monitoring equipment, pipe installation and guardrail removal.


• 3 p.m. to 6 a.m. Monday – one lane closed westbound.

• 6 p.m. to 6 a.m. Monday – one lane closed eastbound.


• 7 a.m. to 6 a.m. Tuesday – one lane closed eastbound.

• 12 p.m. to 12 a.m. Tuesday – one lane closed westbound.


• 7 a.m. to 6 a.m. Wednesday – one lane closed eastbound.

• 12 p.m. to 12 a.m. Wednesday – one lane closed westbound.


• 7 a.m. to 6 a.m. Thursday – one lane closed eastbound.


• 7 a.m. to 6 a.m. Friday – one lane closed eastbound.


• 7 a.m. to 6 a.m. Saturday – one lane closed eastbound.

To receive project updates via email, 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 http://www.face

CDOT also has launched a new smartphone application to provide drivers with easier access to I-70 traveler information. 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.

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