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C-470 Express Lanes

Project Facts

  • Location: 12.5 miles of C-470, from I-25 to Wadsworth Boulevard
  • Cost: $276 million

 The C-470 Express Lanes project includes:

  • 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

C-470 Bikeway Trail

Access will be restricted to the C-470 Bikeway Trail on the east side of Colorado Blvd. allowing crews to  tie-in the new portion of the trail to the existing trail. All trail users must connect to the trail on the west side of Colorado Blvd. Construction and barrier placement has been completed under Colordao Blvd. and will open on September 30 allowing trail users to use this underpass as access to the east side  of Colorado Blvd. 
This closure will be in effect 24/7 beginning the morning of September 30 and continue for approximately four weeks.

  • 24/7 Extended Closure

  • Beginning Friday, October 18 at 10:00 pm, reopening Monday, October 21 at 5:30 am. Northbound I-25 ramp to westbound C-470. Detour: Take northbound I-25 to northbound E-470 to Peoria St. exit. Take Peoria St. to southbound E-470 and continue onto westbound C-470. No tolls will be charged using this Peoria St. detour.

    Upcoming Lane Closures:

  • Monday, October 21 through Thursday, October 24 from 10:00 pm to 5:30 am and Sunday, October 26 from 12:00 am to 8:00 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
  • Wednesday, October 23 and Thursday, October 24 from 10:00 am to 5:30 am and Saturday, October 26 from 12:00 am to 8:00 am. Southbound I-25 ramp to northbound E-470 and westbound C-470. Detour: Take southbound I-25 to Lincoln Ave. Take eastbound Lincoln Ave. to northbound I-25, continue to westbound C-470 and northbound E-470.
  • Monday, October 21 and Tuesday, October 22 from 10:00 pm to 5:00 am. Westbound C-470
    I-25/E-470 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. and turn left.Take Quebec St. to the C-470 westbound on-ramp.  Southbound I-25 to westbound C-470 detour: From southbound I-25 exit onto Lincoln Ave. west. Continue on Lincoln Ave. to Quebec St. and turn right. Take Quebec St. to the westbound C-470 on-ramp. Southbound E-470 to westbound C-470 detour: From southbound E-470 take southbound I-25 and exit at Lincoln Ave. west. Continue on Lincoln Ave. to Quebec St., turn right and continue to the westbound C-470 on-ramp.
  • Wednesday, October 23 and Thursday, October 24 from 10:00 pm to 5:30 am and Saturday, October 26 from 12:00 am to 8:00 am. Southbound I-25, northbound I-25 and southbound E-470 to westbound C-470. Southbound E-470 to westbound C-470 detour: Take southbound E-470 to southbound I-25, exit onto Lincoln Ave., west. Take Lincoln Ave. to Yosemite St., turn right. Take Yosemite St. to westbound C-470  on-ramp. Southbound I-25 to westbound C-470 detour: Take southbound I-25, exit onto Lincoln Ave., west. 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.
  • Nightly, Monday, October 21 through Thursday, October 24 from 10:00 pm to 5:30 am and Saturday, October 26 from 12:00 am to 8:00 am. Eastbound C-470 full freeway closure Quebec St. to I-25/E-470. Eastbound C-470 to southbound and northbound I-25 detour: Take eastbound C-470 to the Quebec St. off-ramp. Turn left onto Quebec St., to County Line Rd., turn right onto County Line Rd. to northbound/southbound I-25 ramps. Eastbound C-470 to southbound and northbound
    E-470 detour:     Take eastbound C-470 to the Quebec St. off-ramp, turn left onto Quebec St. continue to County Line Rd. and turn right. Take County Line Rd. to Inverness Pkwy to Jamaica St. Turn left onto Jamica St. to northbound E-470 on-ramp.
  • Wednesday, October 23 from 5:30 am to 9:30 pm.  Westbound C-470 Platte Canyon on-and off-ramps.  Westbound Platte Canyon Road off-ramp detour: Continue on westbound C-470 to the Wadsworth Blvd. exit. Turn right onto northbound Wadsworth Blvd. turn right onto Chatfield Ave., continue until Chatfield Ave. turns into Platte Canyon Rd. Northbound Platte Canyon Road to westbound on-ramp from detour: Continue north on Platte Canyon Rd. to Ken Caryl Ave. turn left on Ken Caryl Ave. to Wadsworth Blvd. and turn left. Continue south on Wadsworth Blvd. to the westbound C-470 on-ramp. Southbound Platte Canyon Road to westbound on-ramp from detour: Continue south on Platte Canyon Rd. until the road becomes Chatfield Ave. Continue west on Chatfield Ave. to Wadsworth Blvd. turn left on Wadsworth Blvd. to the westbound C-470 on-ramp. 
  • Wednesday, October 23 from 9:30 pm to 5:30 am. Westbound C-470 Santa Fe to Wadsworth. Detour: Exit westbound C-470 at Santa Fe, turn right and proceed to Mineral Ave. Turn left onto Mineral Ave. which becomes Ken Caryl. Continue on Ken Caryl to Wadsworth, turn left onto Wadsworth and continue to westbound C-470.
  • Thursday, October 24 and Sunday, October 27 from 9:30 pm to 5:30 am. Eastbound C-470 Wadsworth to Santa Fe. Detour: Exit eastbound C-470 at Wadsworth turn left onto Wadsworth Boulevard. Continue on Wadsworth to Ken Caryl and turn right. Ken Caryl will become  Mineral Ave. Continue on Mineral to Santa Fe. Turn right onto Santa Fe and continue to the eastbound C-470 flyover on-ramp.
  • Friday, October 25 from 11:00 pm to 6:00 am. Eastbound C-470 Ken Caryl to Kipling. 
  • Saturday, October 26 from 11:00 pm to 6:00 am. Eastbound C-470 Kipling to Wadsworth. 
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