Projects

Construction

The Colorado Department of Transportation is extending weekday lane closures along the westbound I-70 mountain corridor in exchange for completing significant construction in early 2021 and opening the Westbound I-70 Mountain Express Lane for testing shortly after that.

These single-lane closures will occur in various locations between the Veterans Memorial Tunnels (Mile Point 242) and Empire Interchange (Mile Point 232) but the majority of construction activity will be focused in Idaho Springs between Mile Points 242 and 239.

Drivers should plan for delays during the ski season and are advised to check cotrip.org before traveling. 

Travel alert WB I-70 in Idaho Springs

Construction Update for the week of Jan. 24 through Jan. 30, 2021:

Daytime work will only take place in the shoulder areas, behind concrete barriers and off the highway to avoid impacts to I-70 travel during daytime hours. This work will include shoulder paving, grading the center median at several locations, and making curb ramp, sidewalk and safety improvements on the CO 103 Bridge at Exit 240 in Idaho Springs.

The following traffic impacts are anticipated:

  • Saturday, Jan. 23, there will be mobile lane closures along westbound I-70 in various locations between Mile Points 243 and 232 starting at 5 p.m. to install guardrail.
  • Saturday, Jan. 23, the westbound I-70 off-ramp to Exit 240 (CO 103/Mt. Evans Road) in Idaho Springs will be closed from 5 p.m. to 5 a.m. to install guardrail.
  • Sunday, Jan. 24, there will be mobile lane closures along westbound I-70 in various locations between Mile Points 243 and 232 starting at 3 p.m. to install overhead signs. All lanes will reopen by 5 a.m. Monday.
  • Sunday, Jan. 24, the right lane of eastbound I-70 will be closed between Mile Points 232 (Empire) and 233 (Lawson) starting at 8 p.m. to install guardrail at one of the eastbound emergency pullout areas. All eastbound lanes will reopen by 5 a.m. Monday.
  • Also, overnight Sunday, Jan. 24, the westbound I-70 off-ramp to Exit 238 (Fall River Road) will be closed from 7 p.m. to 5 a.m. for pavement repairs.
  • Monday through Friday there will be daytime (7 a.m. to 5 p.m.) shoulder closures in both directions of I-70 within the project limits, and the eastbound Express Lane will be closed intermittently during daytime hours within the project limits.
  • Overnight Monday, Jan. 25, through Friday, Jan. 29, there will be single lane closures in both directions of I-70 at various locations within the project limits starting at 7 p.m. each night for electrical work, sign installation, guardrail installation, camera cleaning and other work.
  • Wednesday, Jan. 27, there will be mobile lane closures along westbound I-70 in various places between 7 a.m. and 3 p.m. to clean cameras along the corridor.
  • Friday, Jan. 29, there will be an overnight single lane closure along eastbound I-70 from Fall River Road to Dumont starting at 7 p.m. until 10 a.m. Saturday.
  • Saturday, Jan. 30, there will be mobile lane closures along westbound I-70 in various locations between Mile Points 243 and 232 starting at 5 p.m. and continuing until 5 a.m. Sunday.
  • All construction schedules are weather dependent and subject to change.
  • Please refer to CoTrip.org  >for exact closures when planning your trips.

Temporary parking restrictions in Idaho Springs lots

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Click to expand the map.


Project Background

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The construction phase of this project includes building the shoulder Express Lane, drainage improvements, building retaining walls, and installing a fiber-optic network and electronic signage and tolling system. Construction will be complete and the Mountain Express Lane opened for testing by the end of 2020. Tolls will be waived until later in 2021.

With westbound I-70 traffic volumes historically declining in the weeks between the change in fall foliage and the start of ski season, westbound daytime lane closure hours are being extended through November. 


Project Benefits

  • Driver Choice –In keeping with CDOT’s new Whole System – Whole Safety initiative, the new Express Lane will provide westbound drivers with a safer and more reliable choice during peak travel times.
  • Improved Infrastructure – The addition of an Express Lane along westbound I-70 is a much-needed improvement to the area’s infrastructure in support of economic growth. 
  • Driver Safety – Safety barriers, guardrails, and end caps are in place along the construction zone from Exit 235 to Exit 231. These safety measures will be implemented during all phases of civil construction.
  • Advanced Technology – The construction of a westbound Express Lane and retaining walls is incorporating leading-edge technologies and materials to maximize driver safety. The installation of fiber optics, new electronic signage and a tolling system will achieve CDOT’s goal of a safer, more connected and mobile I-70 mountain corridor.

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