US 6 & Wadsworth Boulevard Interchange Improvements

About the Project

Originally built in the 1950s, the US 6 and Wadsworth Boulevard interchange in Lakewood is receiving improvements to accommodate for the Denver Metro Area's population growth and increased traffic needs. CDOT has advanced improvements in phases as funding became available. The final, large undertaking to reconstruct the interchange and US 6 bridge, complete pedestrian and bicycle connections, and add additional noise walls is now underway.

Current traffic impacts are outlined below in the Traffic Impacts section.

To find out more about the background, funding and planned improvements of this project, visit the Phase 4 Interchange Reconstruction project page. 

Project Facts

  • Cost: $80 million
  • Contractor: Ames Construction
  • Timeline: October 2026 through late 2029
  • Location: US 6 and Wadsworth 
    • Nearest Town/City: Lakewood
    • Mile Point(s): MP 281 (US 6)
    • County: Jefferson

Project Area

The US 6 and Wadsworth Boulevard project is located within Jefferson County. The entire project limits extend along Wadsworth Boulevard from 4th Avenue to Colfax Avenue and along US 6 from the eastern interchange ramps at Wadsworth west to Meadowlark Drive. The interchange area is located within the City of Lakewood.

Project Benefits

  • Improve safety for motorists, pedestrians, and bicyclists
  • Create better traffic flow
  • Provide additional travel options for pedestrians and bicyclists
  • Replace the structurally deficient US 6 bridge over Wadsworth Boulevard
  • Address neighborhood concerns about cut-through traffic by converting portions of frontage roads to two-way traffic
  • Reduce noise impacts to adjacent residents with new noise walls

Work Schedule

  • Regular daytime work hours are generally from 7 a.m. to 5:30 p.m., Monday through Friday
  • Initial project work will primarily take place Sunday through Thursday nights from 9 p.m. to 5 a.m., with periodic night and Saturday work throughout the project

Traffic Impacts

  • Work by utility companies is occurring on side streets and frontage roads across the interchange area, requiring some single lane and frontage road closures
  • Signed detours will be in place and flaggers will be on site to direct traffic when necessary
  • Business and residential access will be maintained
  • Crews will work nights to set temporary barriers and stripe lane shifts along US 6, with some ramp closures required
  • Nighttime noise is expected for upcoming construction operations. The project team thanks you for your patience
  • Additional traffic shifts will occur as the project progresses
  • The speed limit will be reduced to 55 MPH on US 6 between Garrison Street and Sheridan Boulevard for the duration of the project
  • Refer to COtrip.org for real-time travel conditions and road closures.