Project and HOV Information

express lanes

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 AECOM LLC. View the bid opening spreadsheet, with technical scores and price.


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 Douglas County is providing CDOT partial funding.

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.

Proposed work for this project includes:

  • Adding two 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
  • 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
  • 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.

HOV Lanes

There will be no HOV/carpool lanes within the C-470 corridor. The C-470 Express Lanes project will add Express Lanes in addition to the existing, free general-purpose lanes. Drivers will always have a choice of using the free existing lanes or paying a toll to use the Express Lane.

Find lane closure information any time.