Project Overview

CDOT is working to bring a number of improvements to Central 70 which include:

  • Complete reconstruction of I-70 from Brighton Boulevard to I-270 including the addition of one Express Lane in each direction;
  • Removing the 50-year-old viaduct and lowering the interstate between Brighton and Colorado Boulevards;
  • Construction of a new 4-acre cover over the interstate between Clayton and Columbine Streets;
  • Widening I-70 from I-270 to Chambers Road to accommodate one Express Lane in each direction; and
  • Restriping I-70 from I-25 to Brighton Boulevard to accommodate one Express Lane in each direction.


See a larger version of the map

Aerial of construction detail - Brighton to east of Quebec - Download a PDF to zoom and pan


The Project is estimated to cost $1.17 billion. The primary funding sources include:

Colorado Bridge Enterprise: $850M
SB 09-228 Funds: $180M
Denver Regional Council of Governments (DRCOG): $50M
City of Denver: $37M

Colorado: The Official State Web Portal