C-470 Express Lanes

NEW: The C-470 Tolled Express Lanes project held a bid opening on Wednesday, March 30, 2016 at CDOT Headquarters. At that time, the Apparent Selected Proposer based on a Best Value determination was found to be Flatiron Construction. View the bid opening spreadsheet with technical scores and price here.


The C-470 Tolled Express Lanes Segment 1 project will be constructed, managed, owned, and operated by CDOT. The project is supported by the C-470 Corridor Coalition and partial funding is being provided to CDOT from Douglas County.

Funding all the scope items listed below for Segment 1 is contingent upon net proceeds from toll revenue projections, combined with RAMP funds and other revenue sources. The current proposed work for this project includes:

  • Adding two tolled express lanes westbound from I 25 to Colorado, one tolled express lane between Colorado and Wadsworth westbound, and one tolled express lane eastbound from Platte Canyon Road to I 25, with a desire to extend the tolled express lanes in each direction to Kipling;
  • Full reconstruction of the existing pavement;
  • Adding auxiliary lanes at selected locations;
  • Improving on-ramps and off-ramps to current standards (including ramp metering where appropriate), and including construction of direct-connect ramps to the westbound managed tolled lanes to accommodate traffic from I 25 northbound and southbound, and from E 470;
  • Realigning substandard curves;
  • Safety and operational improvements between I-25 and Quebec;
  • Widening of existing bridges throughout the project area;
  • Replacing the bridges over the South Platte River;
  • Installing water-quality features designed to current standards;
  • Installing noise barriers where required;
  • Installing ITS elements and tolling equipment;
  • And, installing the appropriate signing and striping required for the proposed corridor improvements.

Additionally, the project includes adding grade separations for the C-470 multi-use trail at Colorado Boulevard and Quebec Street where grade separations are required at the off ramp, on ramp and under Quebec Street.

For lane closure information visit

Contact Information

Colorado Department of Transportation
Jerome Estes, Project Director

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