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The original item was published from 7/10/2023 11:36:05 AM to 7/10/2023 11:47:40 AM.

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Posted on: July 10, 2023

[ARCHIVED] CDOT Begins I-70 Floyd Hill Project

Artist rendering of the completed Floyd Hill Project, including mountains and the highway.

The Colorado Department of Transportation (CDOT) began construction on the first section of the I-70 Floyd Hill Project on Thursday, July 6. The I-70 Floyd Hill project, from west of Evergreen to eastern Idaho Springs, encompasses an eight mile section of the I-70 Mountain Corridor that acts as an economic gateway for the state of Colorado and the nation. Home to long-time residents, dozens of large and small businesses and tourism traffic, this section of I-70 is in desperate need of improvements. CDOT spent several years studying the corridor, meeting with residents, stakeholders, and community leaders.

The I-70 Floyd Hill project will:

  • Add a third westbound I-70 travel lane in this two-lane bottleneck
            - This new lane will be a full-time, tolled Express Lane from just west of Homestead Road (Exit 247) through the Veterans Memorial Tunnels to Colorado Blvd./Idaho Springs (Exit 241).
  • Rebuild bridges due to use, wear and tear, and heavy usage
  • Construct a missing two-mile section of the frontage road between US 6 and the Hidden Valley/Central City Parkway interchanges, which will improve emergency response
  • Build an extended on-ramp from US 6 onto eastbound I-70 for slow-moving vehicles to have more room to merge
  • Improve traffic flow and access at interchanges and intersections
  • Improve sight distance and safety by straightening roadway curves
  • Improve the Clear Creek Greenway trail
  • Implement environmental mitigation to enhance wildlife connectivity, air and water quality, stream conditions and recreation
  • Install two permanent air quality monitors

Traffic Impacts - during construction, motorists can expect:

  • Occasional daytime traffic holds during rock blasting and rock scaling operations
  • Overnight lane closures
  • Temporary lane shifts
  • Periodic, temporary on- and off-ramp closures
  • Periodic, overnight detours in the I-70/US 6 interchange and short-term closures of I-70 for safety critical work
  • Occasional daytime 20-minute traffic holds for rock scaling and rock blasting (delays of 45 minutes are anticipated
  • Temporary closures of the Clear Creek Greenway trail

Efforts to keep I-70 moving during construction include:

  • Keeping all lanes and ramps open during peak traffic hours
  • Ensuring lane closures are responsive to current traffic patterns
  • Innovating complex work above the roadway so it doesn’t impede traffic
  • New roadway sections are being built adjacent to current lanes to keep traffic moving
  • Promote the use of transit and carpool options to reduce single occupancy vehicle

I-70 Floyd Hill Project webpage
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