I-70 Mountain Corridor: Veterans Memorial Tunnels to Continental Divide

Several independent road improvement projects taking place between the Veterans Memorial Tunnels in Idaho Springs and Loveland Pass at the top of the Continental Divide will help make travel along the I-70 mountain corridor safer and more efficient.

Select each menu below for more information on each project. CDOT is managing these projects collectively to minimize traffic impacts, and ensure the mountain communities along I-70 remain open and accessible to local residents, tourists, and recreationists.

Fall 2019 Construction Activities

Activities planned for fall 2019 that will impact traffic include:

  • In late September/early October, work will be done to install sensors beneath the westbound I-70 bridge at the bottom of Floyd Hill where U.S. 6 intersects with I-70. These sensors will allow CDOT to monitor the structure’s condition. It will take several days or nights to put these sensors in place, and this work will require detouring westbound I-70 traffic onto U.S. 6 to re-enter westbound I-70.
  • Construction of a new sound wall along the Silver Plume on-ramp to westbound I-70 is scheduled to start in September or October. Some work activities will require closing the on-ramp, but the ramp will remain open during the winter.
  • Connecting the new Fall River Road bridge to Stanley Road will require full depth roadway reconstruction and milling and paving work that will take about a week to complete. During this time the Fall River Road off-ramp from eastbound I-70 and the on-ramp access to eastbound I-70 from Fall River Road will both be closed.

Construction of the Westbound I-70 Mountain Express Lane began in July 2019. Similar to the eastbound Express Lane already in place, this 12-mile long lane will extend from the Veterans Memorial Tunnels in Idaho Springs to Empire Junction. Once complete, the westbound Express Lane will feature traffic management systems to improve mobility and provide westbound drivers with a reliable, time-saving option during peak travel periods.

Construction of the Express Lane is expected to be completed in late 2020, with testing of the tolling system features continuing until spring 2021 before the lane can open.

Travel Impacts

This project will entail shoulder closures and westbound lane closures during non-peak hours, but much of the construction can be done while keeping both westbound lanes open by staging construction equipment in the eastbound Express Lane. This will minimize inconveniences to drivers by providing access to mountain destinations and events.

Work on the eastbound bridge over Soda Creek Road near Mile Point 249 is complete. The night of Monday, July 8, crews will move over to the westbound lanes of I-70 to continue critical infrastructure repairs started last year on the I-70 bridge at the U.S. 6 interchange near Mile Point 244 just west of Floyd Hill. This work is expected to take about a week to complete.

This work will be done overnight Sunday through Thursdays with single-lane closures along westbound I-70 beginning at 7 p.m. each night. At 8 p.m. each night, all lanes of westbound I-70 will be closed and all traffic will need to use Exit 244 and turn left onto U.S. 6 to re-enter westbound I-70. All lanes will be open by 7 a.m. the next day.

During the full closure, crews will intermittently close the eastbound I-70 off-ramp to U.S. 6 (the ramp that crosses beneath the westbound lanes of I-70). When these closures are in effect, drivers will need to continue to the next exit at Mile Point 247 (Beaver Brook/Floyd Hill) and enter the highway going west to reach U.S. 6.

In late May 2019, work began on the two-lane bridge that will ultimately connect the Fall River Road/I-70 interchange at Exit 238—just west of Idaho Springs—with Stanley Road. Bridge construction is expected to be completed in late 2019.

Travel Impacts

During construction, Stanley Road will be reduced to one lane with a temporary traffic signal in place to guide alternating directions of traffic using the one-lane road.

No weekend or holiday work is anticipated on this project.

Improvements to an 11-mile stretch of US 6 from the base of the Loveland Ski Area to Keystone include replacing drainage culverts, milling and resurfacing the roadway, installing new guardrail and placing new pavement markings. Work is starting in mid-June and is expected to be completed in October.

Travel Impacts

To minimize the impact on weekend travel and cycling events, work hours are slated from 6 a.m. to 7 p.m., Mondays through Fridays. US 6 will be reduced to one lane of travel through the work zone, so drivers should plan for delays.

On weekdays while work is occurring, cyclists traveling uphill through the work zone will be stopped and shuttled through the construction zone. Downhill cyclists able to keep pace with traffic will be allowed to proceed through the work zone.

As part of the County Road (CR) 314 Project to reconstruct and pave the road near the Game Check Trailhead, drill crews must take soil samples to finalize project design plans.

This soil sampling involves using heavy equipment that requires these closures of CR 314:

    • Daily FULL CLOSURES of CR 314 (from Game Check Trailhead to City Water Treatment Plant) Wednesday, June 26, through Friday, June 28, from 7 a.m. to 5 p.m. each day.
    • In the upcoming weeks, there will be several days of rolling closures of CR 314 between the City Water Treatment Plant and the Storage Facility. This work, scheduled for the hours of 7 a.m. to 5 p.m., will be done in 100-foot sections so business access can be maintained.

While this work is being done, access will be provided for emergency service vehicles.

Please note construction activities are weather dependent and subject to change. Further notifications will be sent if the schedule changes.

CDOT crews will be filling in pavement cracks in various locations along Colorado State Highway 103 in late June. This initial work will focus on the section of roadway that is about eight to 12 miles west of Highway 74 in Evergreen. As weather conditions permit, there will be additional chip sealing work done this summer in various locations along CO 103 between Idaho Springs and Evergreen.

The two-mile section of the Clear Creek Greenway Trail that runs parallel to I-70 between Georgetown and Silver Plume is currently closed to pedestrians and bicyclists while repairs are made. Work on this trail is not expected to be complete until late July, but the contractor plans to have base course put down prior to the July 13 Triple Bypass event to make this section passable to riders.

Work will begin later this summer to replace the sound wall along the Silver Plume on-ramp to westbound I-70 near Mile Point 225. This work will include ramp safety and drainage improvements and will involve closing the on-ramp this summer while work is done. When this ramp is closed, anyone wanting to travel west on I-70 from Silver Plume will need to go east to Georgetown and re-enter the highway there going west. If this work isn't done by November it will be finished in the spring of 2020.

Beginning the week of July 14, an asphalt crack repair project will begin near the Eisenhower/Johnson Memorial Tunnels.Project hours will run from 8 p.m. to 5:30 a.m.

The project limits are eastbound I-70 from milepoint 214 (Eisenhower Tunnel) to milepoint 226 and westbound I-70 from milepoint 218 to milepoint 214.

One lane of traffic will be maintained during work. The project is expected to take 3 weeks.

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