C-470 Express Lanes

Project Facts

  • Location: 12.5 miles of C-470, from I-25 to Wadsworth Boulevard
  • Cost: $276 million
  • adding two westbound Express Lanes from I-25 to Colorado Boulevard, and adding one westbound Express Lane from Colorado Boulevard to Wadsworth Boulevard
  • adding one eastbound Express Lane from just west of the South Platte River to I-25;
  • fully reconstructing a portion of the existing pavement;
  • adding auxiliary lanes;
  • improving portions of on- and off-ramps to current standards (including ramp metering where appropriate);
  • realigning substandard curves;
  • making safety and operational improvements between I-25 and Quebec via direct-connect ramps from I-25 to the westbound C-470 Express Lanes;
  • widening existing bridges throughout the project area;
  • replacing the bridges over the South Platte River;
  • installing water-quality features where required;
  • installing noise barriers where required;
  • installing Intelligent Transportation Systems elements and tolling equipment; and
  • adding grade separations for the multi-use trail at Quebec and Colorado.

Current and Upcoming Work

Wadsworth to Santa Fe:

  • Traffic has been shifted onto new permanent concrete pavement and the newly constructed South Platte River Bridge eastbound between Wadsworth and Santa Fe. Westbound traffic has been diverted onto the new eastbound bridge as well while crews construct the new westbound South Platte River Bridge.
  • Demolition of the old westbound South Platte River bridge is complete.
  • The concrete deck was poured recently for the new westbound South Platte River Bridge.
  • Noise wall, drainage, wall, subgrade work and paving along westbound C-470 between Santa Fe and Wadsworth is on-going.

Santa Fe to Lucent:
Work includes:

  • inlet, lighting and barrier;
  • noise wall construction;
  • continued work on the Erickson bridge; and
  • concrete paving;

Lucent to Quebec:

  • Eastbound and westbound traffic has been shifted onto new permanent concrete pavement between Lucent and Quebec.
  • Concrete paving is on-going.
  • Crews will complete concrete barrier, guardrail, overhead sign installation, and drainage work.
  • Crews will do ITS work (light poles and tolling infrastructure in median).
  • Expect trail work at Colorado and Quebec.

Quebec to I-25:
Work includes

  • earthwork;
  • drainage pond grading and pipe installation;
  • ITS;
  • bridge, retaining wall and drainage work at Yosemite and Acres Green;
  • Willow Creek trail now open;
  • permanent barrier installation;
  • temporary asphalt paving in median and I-25 interchange;
  • installation of overhead signs;
  • bridge construction;
  • More traffic shifts can be expected to move traffic onto new permanent concrete pavement;
  • concrete paving continues.

Lane Closures

High Line Canal Trail Underpass

This closure will be in effect 24/7 beginning Monday, November 4 at 9:00 am and continuing 24/7 through Friday, November 15 at 5:00 am. This closure will allow crews to complete trail construuction at the box culvert under C-470. Northbound High Line Canal Trail underpass detour: Take Plaza Dr. west to Erickson Blvd. and turn right. Continue to County Line Rd. and turn right. Proceed on County Line Rd. to Promo Rd. and turn right. Take Primo Rd. to High Line Canal Trail and proceed north. Southbound High Line Canal Trail underpass detour: Take Primo Rd. north to County Line Rd. and turn left. Proceed on County Line Rd. to Erickson Blvd. and turn left. Take Erickson Blvd. to Plaza Dr., turn left onto Plaza Dr. and continue to the High Line Canal Trail south.
Upcoming Lane Closures:

  • Sunday, November 10 from 10:00 pm to 5:30 am. Eastbound C-470 ramps to northbound E-470 and northbound I-25. Detour: Take eastbound C-470 ramp to southbound I-25. Exit on Lincoln Ave., turn left and continue back onto northbound I-25 to northbound E-470
  • Sunday, November 10 through Tuesday, November 12 from 10:00 pm to 5:30 am. Southbound I-25, northbound I-25 and southbound E-470 to westbound C-470. Southbound E-470 and southbound I-25 to westbound C-470 detour: Take southbound  I-25, exit on Lincoln Ave. and turn right. Take Lincoln Ave. to Yosemite St., turn right. Take Yosemite St. to westbound C-470  on-ramp. Northbound I-25 to westbound C-470 detour: Take northbound I-25, exit onto County Line Rd. west. Continue on County Line Rd. to Yosemite St. and turn left. Take Yosemite St. to the westbound C-470 on-ramp.
  • Sunday, November 10 from 9:30 pm to 5:30 am.  Eastbound C-470 Kipling to Wadsworth. Detour: Exit Kipling Pkwy. eastbound off-ramp. Turn left onto northbound Kipling Pkwy., proceed north to Chatfield Ave. and turn right. Continue on Chatfield Ave. for 1.5 miles to Wadsworth Blvd., turn right and continue to the eastbound C-470 on-ramp.
  • Wednesday, November 13 and Thursday, November 14 from 10:00 pm to 5:30 am. Westbound C-470 full freeway closure I-25/E-470 interchange to Quebec St. Northbound I-25 to westbound C-470 detour: From northbound I-25 exit onto County Line Rd. west. continue on County Line Rd. to Quebec St., turn left. Take Quebec St. to the C-470 westbound on-ramp. Southbound I-25/E-470 to westbound C-470 detour: Take southbound I-25 to Lincoln Ave., exit west. Continue on Lincoln Ave. to Quebec St. and turn right. Take Quebec St. to the westbound C-470 on-ramp. 
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