Progress on the Project

Construction started in August 2018, since then crews have been working in every segment along the 10-mile Project corridor. See below for more information.


  • Demolished portion of the I-70 viaduct above Brighton Boulevard
  • Reconstructed southbound lanes of Brighton under I-70
  • Demolished old Union Pacific Railroad (UPRR) bridge
  • Removed York Street on-ramp to westbound I-70
  • Constructed Columbine and Clayton bridges in summer 2019
  • Constructed Josephine, Fillmore and Monroe bridges in summer 2019 – summer 2020
  • BNSF Bridge constructed
  • 46th North Avenue constructed between Colorado Boulevard and Steele Street
  • Opened new ramp access to eastbound I-70 from southbound Colorado Boulevard, removed loop ramp
  • Constructed a portion of the new Colorado Boulevard Bridge above I-70
  • Demolished portions of the old Colorado Boulevard Bridge above I-70
  • Installed and relocated utilities along Stapleton Drive
  • Demolished portions of the I-70 bridges over Dahlia, Holly and Monaco in preparation for widening
  • Rebuilt Stapleton North and South Drive intersections at Dahlia Street
  • Rebuilt Stapleton South Drive intersection at Holly Street
  • Rebuilt Stapleton South Drive intersection at Monaco Street
  • Relocated Holly Street on-ramps to westbound and eastbound I-70 to their permanent locations
  • Set girders on I-70 bridge above Dahlia and Holly streets
  • Set girders on I-70 bridge above DRIR
  • Completed Stapleton Drive North between Holly and Dahlia
  • Built I-270 flyover bridge
  • Demolished old I-270 flyover
  • Widened and shifted I-70 traffic to new pavement
  • Demolished the I-70 bridge over Peoria and built a new bridge
  • Median barriers installed
  • Sign structures installed


  • Construction of the Brighton Boulevard interchange
  • Closure of 46th Avenue from Brighton Boulevard to York Street — necessary for UPRR bridgework
  • Construction of a portion of the new Union Pacific Railroad bridge adjacent to the old structure 
  • Construction of the pump station
  • Installation of structural columns in lowered section
  • Cover Park construction
  • Cook Street Bridge construction
  • Extensive utility relocations along 46th Avenue
  • Construction of Colorado Boulevard Bridge
  • Closure of Dahlia and Monaco streets to construct overhead bridges on I-70
  • Utility installations and relocations
  • Widening I-70
  • DRIR Bridge construction
  • Reconstruction of Quebec Street interchange


  • Constructing the UPRR Bridge
  • Construct York and Cook street bridges
  • Demolish remaining old Colorado Boulevard Bridge
  • Build remaining portion of the Colorado Boulevard bridge 
  • Constructing the I-70 bridges over Dahlia, Holly and Monaco
  • Relocating Stapleton Drive utilities
  • Widening I-70 between Colorado Boulevard and Quebec Street
  • Shifting Stapleton Drive out between Colorado Boulevard and Quebec Street
  • Build widened portions of I-70 bridge above Quebec Street


  • 146 of the 148 identified Record of Decision
    mitigation measures are in progress or completed
  • 126 of the 133 anticipated parcels have been
  • 135 of the 369 utility conflicts have been resolved
    (relocated or determined non-conflicts)
  • Nearly 730,000 cubic yards of dirt have been
    excavated preparing for the future lowered highway
  • The Project bilingual Community Liaison continues to host two virtual outreach ‘office hours’ each Tuesday and Thursday as well as ongoing coordination with local partners and organizations
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