C-470 Express Lanes

c 470 express lanes

What's New?

The Project officially began construction on November 1, 2016. Travelers should now see new signage, construction equipment, and increased activity along mainline C-470 between Lucent and Quebec. Temporary concrete barrier has been set along the shoulder to allow workers to safely perform work such as earthwork, installation of conduit for Intelligent Transportation System (ITS) equipment, soil compaction for the future trail and road-widening work, potholing for utilities, surveying, and geotechnical drilling for soil testing. The intersection at Broadway and mainline C-470 between Quebec and Lucent have been restriped and bridge foundation work is underway at Broadway, University, and Big Dry Creek. New bridge girders have been set at the Broadway bridge. Parts of the Centennial Trail between Broadway and Big Dry Creek have been realigned with asphalt pavement. Be sure to follow detour signs and obey flaggers when present.

Activities and Lane Closures for 3/26/17 - 4/1/17* 

Daytime Lane Closures:

  • Monday (3/27), Tuesday (3/28, and Thursday (3/30) 9am-1pm: Southbound University double right lane and sidewalk closure due to concrete pour at bridge abutment.
  • Thursday (3/30) - Friday (3/31) 9am-3:30pm: Southbound Broadway single right lane and sidewalk closure due to slope and ditch concrete pour of bridge.
  • Wednesday (3/29) - Friday *3/31) 9am-3pm: Northbound and southbound Erickson single right lane closure due to potholing.

Nighttime Lane Closures:

  • Sunday (3/26) - Friday (3/31) 10pm - 5:30am: East and westbound C-470 alternating right and left single lane closures due to traffic control device maintenance, median widening earthwork, and paving operations.
  • Monday (3/27) 8pm-5am: North and southbound Broadway double right lane and sidewalk closures due to ITS potholing for conduit boring.
  • Tuesday (3/28) 8pm-5am: North and southbound Broadway double left lane closures due to ITS potholing for ITS conduit boring.
  • Wednesday (3/29) 8pm-5am: North and southbound Broadway double right lane closures due to ITS potholing for conduit boring.

Note: Traffic Control Supervisor determines if closures need to be adjusted in order to provide safe method of handling traffic conditions if curves, hills, etc. are present. *All lane closures are weather dependent.

See a brief overview of the September 2016 open house.

Project Overview

The C-470 Express Lanes project will increase mobility and user choice along 12.5 miles of C-470 between I-25 and Wadsworth Boulevard. The $276 million project includes the following improvements:

  • Mobility Improvements:
    • Two additional westbound Express Lanes constructed from I-25 to Colorado Boulevard, and one additional Express Lane from Colorado Boulevard to Wadsworth.
    • One additional eastbound Express Lane constructed along the length of the project, between I-25 and Wadsworth Boulevard.
  • Additional safety and infrastructure improvements:
    • full reconstruction of existing pavement
    • new auxiliary lanes at selected locations
    • on- and off-ramp improvements
    • realignment of substandard curves
    • widening of existing bridges
    • replacing the bridges over the South Platte River


The project is funded by $110.6 million in combined state and federal funding, and $10 million from Douglas County. The remainder will be funded via a loan repaid by toll revenues from the Express Lanes.

About Express Lanes

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.

There will be no HOV/carpool lanes within the C-470 corridor.

Express Lanes increase roadway capacity and help to manage congestion on highways. The use of toll pricing during peak travel times reduces delays, manages congestion and maintains reliable travel times. Express Lanes are currently open on:

For more information, visit CDOT's Express Lanes website

You can also find lane closure information any time.

Contact Us
Express Toll Pass
Colorado: The Official State Web Portal