Projects

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 Mary Carter Greenway Trail at the South Platte River is now open. Flaggers may be positioned in the area to guide trail users safely through as construction continues on the new westbound bridge.
  • Noise wall, drainage, wall and grading work 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.

Lane Closures

  • Sunday, June 16 through Thursday, June 20 southbound I-25, as well as Saturday, June 22 from 12 a.m. to 8 a.m.  northbound I-25 and southbound E-470 to westbound C-470 will be closed to perform grading, paving and to switch traffic onto new permanent concrete pavement. Detours: SB E-470 to WB C-470 - Take southbound E-470 to southbound I-25 and exit onto Lincoln Ave. west. Continue on Lincoln Ave. west to Yosemite St. and turn right. Take Yosemite St. north to the westbound C-470 on-ramp. SB I-25 to WB C-470 - Take southbound I-25 and exit onto Lincoln Ave. west. Continue on Lincoln Ave. west to Yosemite St. and turn right. Take Yosemite St. north to the westbound C-470 on-ramp. NB I-25 to WB C-470 - Take northbound I-25 and exit onto County Line Rd. west. Continue on County Line Rd. west to Yosemite St. and turn left. Take Yosemite St. south to the westbound C-470 on-ramp.
  • Thursday, June 20 from 10 p.m. to 5:30 a.m., Saturday, June 22 from 12 a.m. to 8 a.m. and Sunday, June 23 from 12 a.m. to 5:30 a.m. eastbound C-470 to northbound I-25 will be closed to install drainage pipe. To Detour: Take eastbound C-470 to southbound I-25, exit Lincoln Ave. Take Lincoln Ave. east and continue onto northbound I-25.
  • Sunday, June 16 through Thursday, June 20 from 10 p.m. to 5:30 a.m. and Saturday, June 22 from 12 a.m. to 8 a.m. eastbound C-470 to northbound E-470 will be closed to perform grading, paving and to install permanent curb and gutter. Detour: Take eastbound C-470 to southbound I-25, exit Lincoln Ave. Take Lincoln Ave. east and continue onto northbound I-25. Take the ramp to northbound E-470.
  • Monday, June 17 and Tuesday, June 18 from 10:30 p.m. to 5:30 a.m. southbound I-25 will be closed at County Line to install permanent sign structures. Detour: SB I-25 - Exit County Line Rd., turn left and proceed to the southbound I-25 ramp. SB I-25 to WB C-470 and NB E-470 - Exit County Line Rd., turn left and proceed to the southbound I-25 on-ramp. Take southbound I-25 to Lincoln Ave. Take Lincoln Ave. eastbound and continue back onto northbound I-25 to westbound C-470 and northbound E-470.
  • Tuesday, June 18 from 9:30 p.m. to 5:30 a.m. westbound C-470 will be closed from Santa Fe to Wadsworth for overhead sign installation. To Detour: Exit Santa Fe Dr. westbound off-ramp and turn right onto northbound Santa Fe Dr. Take Santa Fe Dr. to Mineral Ave. and turn left. Take Mineral Ave. westbound until the road becomes Ken Caryl Ave. Take Ken Caryl Ave. to Wadsworth Blvd. and turn left. Take Wadsworth Blvd. south and continue onto westbound C-470 on-ramp.
  • Wednesday, June 19 from 10 p.m. to 5:30 a.m. westbound C-470 from Broadway to Lucent will be closed for overhead sign installation. Detour: North - Exit Broadway westbound off-ramp. Turn right onto northbound Broadway, proceed north to County Line Rd. and turn left. Continue on County Line Rd. until Lucent Blvd. Turn left onto south Lucent Blvd., then continue to the westbound C-470 on-ramp. South - Exit Broadway westbound off-ramp. Turn left onto southbound Broadway, proceed south to Plaza Dr. and turn right. Continue on Plaza Dr. until Lucent Blvd. Turn right onto north Lucent Blvd., then continue to the westbound C-470 on-ramp.
  • Thursday, June 20 and Friday, June 21 from 10 p.m. to 5:30 a.m. westbound C-470 will be closed from Quebec to University Blvd. for overhead sign installation. To Detour: Exit Quebec St. westbound off-ramp. Turn right onto northbound Quebec St., proceed to County Line Rd. and turn left. Continue on County Line Rd. until University Blvd. Turn right onto southbound University Blvd., then turn right onto the westbound C-470 on-ramp.
  • Thursday, June 20 through Sunday, June 23 from 10 p.m. to 5:30 a.m. eastbound C-470 will be closed at Lucent Blvd. to install permanent drainage. There is no detour for this closure. Motorists will exit the Lucent Blvd. off-ramp and continue through the traffic signal to the Lucent Blvd. on-ramp.
  • Monday, June 24 through Thursday, June 27 from 10 p.m. to 5:30 a.m. and Friday, June 28 and Saturday, June 29 from 11 p.m. to 6 a.m. eastbound C-470 from Santa Fe to Wadsworth will be closed to install permanent drainage. Detour: Exit Wadsworth Blvd. eastbound off-ramp. Turn left onto northbound Wadsworth Blvd., proceed north to Ken Caryl Ave. and turn right. Continue on Ken Caryl Ave.  until the road becomes Mineral Ave. Take Mineral Ave east until Santa Fe Dr. Turn right onto southbound Santa Fe, then continue south to the eastbound C-470 on-ramp fly-over.
  • Sunday, June 23 through Thursday, June 27 from 10 p.m. to 5:30 a.m. southbound I-25, northbound I-25 and southbound E-470 ramps to westbound C-470 will be closed to perform grading operations, paving and to switch traffic onto new permanent pavement. Detours: SB E-470 to WB C-470 - Take southbound E-470 to southbound I-25 and exit onto Lincoln Ave. west. Continue on Lincoln Ave. west to Yosemite St. and turn right. Take Yosemite St. north to the westbound C-470 on-ramp. SB I-25 to WB C-470 - Take southbound I-25 and exit onto Lincoln Ave. west. Continue on Lincoln Ave. west to Yosemite St. and turn right. Take Yosemite St. north to the westbound C-470 on-ramp. NB I-25 to WB C-470 - Take northbound I-25 and exit onto County Line Rd. west. Continue on County Line Rd. west to Yosemite St. and turn left. Take Yosemite St. south to the westbound C-470 on-ramp.
  • Wednesday, June 26 from 10 p.m. to 5:30 a.m. westbound C-470 from University to Broadway will be closed to install overhead sign structures. To Detour: Exit University Blvd. westbound off-ramp. Turn right onto northbound University Blvd., proceed north to County Line Rd. and turn left. Continue on County Line Rd. for one and a half miles to Broadway. Turn left onto southbound Broadway, then continue to the westbound C-470 om-ramp.
  • Monday, June 24 from 10 p.m. to 5:30 a.m. eastbound C-470 at Broadway will be closed for overhead sign installation. In addition, Thursday, June 27 and Friday, June 28 from 10 p.m. to 5:30 a.m. westbound C-470 will be closed at Broadway. There is no detour for these closures. Motorists will exit the Broadway off-ramps and continue through the traffic signals to the Broadway on-ramps.
  • Saturday, June 29 from 12 a.m. to 8 a.m. the southbound I-25 ramp to northbound E-470 and westbound C-470 will be closed to shift traffic onto permanent concrete pavement. Detour: Take southbound I-25 to Lincoln Ave. Take Lincoln Ave. eastbound and continue back onto northbound I-25 to westbound C-470 and northbound E-470.
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