Westbound Twin Tunnels Weekly Traffic Advisory

March 14, 2014 - Metro Denver Colorado/CDOT Region 1 - Work on the Westbound Twin Tunnels project is underway.

Idaho Springs - This Colorado Department of Transportation (CDOT) project will widen the westbound tunnel bore to accommodate future expansion in the I-70 mountain corridor. Off-peak closures will be implemented while crews prepare the roadways for a traffic switch in April that will put westbound I-70 traffic through the newly completed eastbound tunnel and eastbound I-70 traffic onto the detour route around the tunnel that was in place for the Eastbound Twin Tunnels project.

Crossover work in the median, instrumentation, drilling and sawing in the westbound tunnel, rock wall surveying and blasting for concrete box culvert are all part of the planned activities for next week, east and west of the Twin Tunnels.

Lane closures are scheduled as follows, all work is weather permitting:

  • Sunday, March 16
    • 10 p.m. – 7 a.m. – westbound traffic detoured, all traffic head to head in eastbound tunnel
  • Monday, March 17
    • 7 a.m. – 2 p.m. – eastbound double lane closure from Exit 241 to westbound tunnel
    • 10 a.m. – 5 p.m. – westbound single lane closure from tunnel to bridge over Clear Creek
    • 7 p.m. – 7 a.m. - westbound traffic detoured, all traffic head to head in eastbound tunnel
  • Tuesday, March 18
    • 7 a.m. – 2 p.m. – eastbound double lane closure from Exit 241 to westbound tunnel
    • 10 a.m. – 5 p.m. – westbound single lane closure from tunnel to bridge over Clear Creek
    • 7 p.m. – 7 a.m. - westbound traffic detoured, all traffic head to head in eastbound tunnel
  • Wednesday, March 19
    • 7 a.m. FULL CLOSURE both directions for blasting work near eastbound tunnel
    • 7 a.m. – 2 p.m. – eastbound double lane closure from Exit 241 to westbound tunnel
    • 10 a.m. – 5 p.m. – westbound single lane closure from tunnel to bridge over Clear Creek
    • 9 a.m. & 11 a.m. – 30 minute FULL CLOSURE of westbound lanes
    • 12 p.m. – 7 p.m. – westbound single lane closure
    • 7 p.m. – 7 a.m. - westbound traffic detoured, all traffic head to head in eastbound tunnel
  • Thursday, March 20
    • 7 a.m. – 2 p.m. – eastbound double lane closure from Exit 241 to westbound tunnel
    • 10 a.m. – 5 p.m. – westbound single lane closure from tunnel to bridge over Clear Creek
    • 9 a.m. & 11 a.m. – 30 minute FULL CLOSURE of westbound lanes
    • 12 p.m. – 7 p.m. – westbound single lane closure
    • 7 p.m. – 7 a.m. - westbound traffic detoured, all traffic head to head in eastbound tunnel
  • Friday,  March 21
    • Between 10 a.m. and 11 a.m. – FULL CLOSURE both directions for blasting work near eastbound tunnel
    • 7 a.m. – 12 p.m. -  eastbound double lane closure from Exit 241 to westbound tunnel
  • Saturday,  March 22
    • No closures scheduled
  • Sunday,  March 23
    • 10 p.m. – 7 a.m. - westbound traffic detoured, all traffic head to head in eastbound tunnel

Drivers should be prepared for longer than normal delays while the above lane closures are in place – depending on traffic volumes.  The Colorado Department of Transportation (CDOT) recommends that drivers plan extra driving time for their trips through this area during construction.

To receive real-time updates about road conditions in your area, visit www.coloradodot.info and click on the green cell phone icon in the upper right hand corner of the page. Information about weekly lane closures will be available at www.coloradodot.info/travel/scheduled-lane-closures.html. Live road conditions are available atwww.cotrip.org, downloading the CDOT Mobile app or by calling 511 from anywhere in the state. Updates are also available via Twitter @coloradodot and be sure to “Like” our Facebook page at www.facebook.com/coloradodot.