Projects

C-470 Express Lanes

Current and Upcoming Activities

Project Facts

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

Wadsworth to Santa Fe: Preparation of subgrade for concrete paving in April; installation of walls, drainage, overhead signs, and ITS fiber; continued construction on the eastbound Platte River Bridge and Santa Fe eastbound off-ramp; traffic switch onto new Platte River Bridge coming in the near future.

Santa Fe to Lucent: Earthwork; asphalt paving; Erickson bridge approach slab work and bridge rail; wall construction; traffic shift to median coming soon.

Lucent to Quebec: Concrete paving; bridge work at Big Dry Creek, University, and Broadway; wall construction; subgrade treatment; drainage pond construction and drainage installation; overhead signs; ITS; barrier construction. Preparing for traffic switch onto new concrete pavement between University and Quebec.

Quebec to I-25: Earthwork; drainage; wall construction; ITS; Acres Green and Yosemite concrete pour on bridge deck coming in April; Willow Creek box culvert construction; bridge column work near I-25 interchange.


Lane Closures

Sunday 8 p.m.-5:30 a.m.: Alternating right and left lane closures on east and westbound C-470; right and left lane closures on Broadway, University; ramp closures possible at Santa Fe, Quebec and Broadway

Monday-Friday 8:30 a.m.-3:30 p.m.: Right and left lane closures on Erickson, Acres Green, University and Yosemite; partial ramp closures on Broadway, Lucent and University; traffic pace on east and westbound C-470.

Monday-Friday 7 p.m.-5:30 a.m.: Alternating right and left lane closures on east and westbound C-470; single lane closures on Yosemite, Acres Green, Broadway, University and Erickson; full ramp closures possible at Santa Fe, Broadway, County Line and University.

Saturday 8 p.m.-8 a.m.: Alternating right and left lane closures on east and westbound C-470; full ramp closures possible at Santa Fe, Quebec and University.


Full Freeway Closure and Ramp Closure to SB I-25

What: A full closure of eastbound C-470 from Quebec St. to I-25 and the eastbound C-470 ramp to southbound I-25 is planned to perform bridge overhead sign removal, temporary pavement improvements, barrier set and striping.  

When:

  • Eastbound C-470 Full Freeway Closure: Tuesday, April 24 and Wednesday, April 25 from 10 p.m. to 5:30 a.m.
  • C-470 ramp to southbound I-25 Full Closure: Thursday, April 26 from 10 p.m.-5:30 a.m.

Detour:

  • Eastbound C-470 ramp to southbound I-25 detour: Take eastbound C-470 ramp to northbound I-25. Exit on Dry Creek Rd., turn left and continue back onto southbound I-25. See map, below.
  • 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., and turn right onto County Line Rd. to northbound/southbound I-25 on-ramps.
  • Eastbound C-470 to northbound E-470 detour: Take eastbound C-470 to the Quebec St. off-ramp. Turn left onto Quebec St. to County Line Rd., and turn right. Take County Line to Inverness Pkwy. Take Inverness Pkwy. to Jamaica St., and turn left onto Jamaica St. to northbound E-470 on-ramp. See map, below.

      

Acres Green Bridge Concrete Deck Pour

What: As part of the C-470 Express Lanes Project, crews will conduct a full closure of northbound and southbound Acres Green Drive. These closures are necessary to pour the deck for the Acres Green Bridge widening.

When: Sunday, April 22 (rescheduled due to weather) and Wednesday, April 25 from 8 p.m. to 5:30 a.m.

Detour: Acres Green Dr. detours are approximately 2 miles long.

  • Eastbound Park Meadows Dr. to northbound Acres Green Dr. Detour: Continue eastbound on Park Meadows Dr. to  Yosemite St. and turn left. Follow Yosemite St. to County Line Rd., turn left onto County Line Rd. and continue to Acres Green Dr.
  • Westbound to northbound Acres Green Dr. detour: Continue westbound on Park Meadows Dr. to Quebec St. and turn right. Take Quebec St. to County Line Rd., turn right and continue to Acres Green Dr.
  • Southbound Acres Green Dr. detour: From County Line Rd. turn left onto Quebec St. and continue to Park Meadows Dr., turn left and proceed to Acres Green Dr.

University Ramps Full Closure 

What: The westbound C-470 on-ramp dedicated right turn and the westbound University off-ramp dedicated right turn full closures for paving and ramp construction as part of the C-470 Express Lanes Project.

When: Closures are 24/7.

  • Westbound off-ramp dedicated right turn beginning Wednesday, April 18 for approximately six weeks.
  • Westbound on-ramp dedicated right turn beginning Monday, April 30 for approximately six weeks.

Vehicles will turn right at the traffic lights. See map above.

Truck Detour: Take southbound University to Dad Clark Dr., turn right. Continue on Dad Clark Dr. to Broadway and turn right. Take westbound C-470 ramp, on the left. See map below.

Northbound Broadway Dedicated Right Turn Lane, 24/7 Closure

What: Northbound Broadway dedicated right turn onto eastbound C-470 on-ramp closure to perform ramp construction and concrete paving as part of the C-470 Express Lanes Project.

When: Monday, April 16. Closed 24/7 for approximately three weeks.

Non-commercial vehicles will still be able to utilize the on-ramp and will turn right at the traffic light.

Commercial vehicle detour is approximately 2.23 miles long. Take northbound Broadway to County Line Road and turn right. Take County Line Road to University and turn right, then continue onto eastbound C-470 on-ramp. (See map.)


Full Closure Northbound and Southbound I-25 Ramps to Westbound C-470 for Wall Construction

What: Crews will conduct a full closure of the northbound and southbound I-25 ramps to westbound C-470 for wall construction in support of bridge widening, as well as to perform Yosemite bridge work in an effort to fully utilize existing closures.

When:  Monday, April 16 through Thursday, April 19 from 10 p.m. to 5:30 a.m. and Saturday, April 21 from 12 a.m. to 8 a.m.

Detours: Detours are approximately 4.15 miles long, see map below.

  • Northbound and southbound I-25 ramps to westbound C-470 Detour: Take northbound and southbound I-25 to northbound E-470 to Peoria Street exit. Take Peoria Street to southbound E-470 and continue onto westbound C-470. No tolls will be charged during closure.

C-470 Nighttime Ramp Closures

Due to the nature of the construction work on the C-470 Express Lanes Project, nighttime ramp closures are required intermittently through the next few weeks.

Ramps Affected: Quebec, University, Broadway, Lucent, Santa Fe and Wadsworth both westbound and eastbound

Details: These closure are required for crews to perform various tasks including striping, barrier placement, equipment mobilization, and other activities. Watch for detour signs and use caution. Detours will lead motorists to the next exit where they can return to C-470 and to their destination. Detours are typically 2.5-3 miles long.


Willow Creek Trail at C-470 Full Closure

What: Full closure of north and southbound Willow Creek Trail. The closure will occur twenty-four hours a day and is necessary to begin drainage work and trail widening construction.

When: Monday, March 26 through Monday, May 28. 24/7

Detour: Detours are approximately one mile long. (See map below.)

  • Southbound Willow Creek Trail Detour: Take C-470 Trail west to Acres Green Dr., turn left. Take Acres Green Dr. to Park Meadows Dr. and turn left, continue to Willow Creek Trail south.
  • Northbound Yosemite Detour: Take Park Meadows Dr. west to Acres Green Dr., turn right. Take Acres Green Drive to C-470 Trail and take the trail east, then merge onto Willow Creek Trail north.


Mary Carter Greenway Trail Closures

The Mary Carter Greenway Trail will be closed intermittently under the South Platte River Bridges as crews replace the existing east and westbound bridges.

  • Check this site for notification of closures.
  • Follow the posted detour signs.
  • The western detour is approximately 3.2 miles, which is 0.3 miles longer than the original route.
    • Follow the Columbine Trail along Chatfield Avenue and Platte Canyon Road. Take the Mineral Trail along Mineral Avenue to connect back onto the Mary Carter Greenway Trail.
  • The eastern detour is approximately 3 miles, which is 1 mile shorter than the original route.
    • Follow the Highline Canal Trail to Southpark Lane. Take the Mineral Avenue Trail. After crossing Santa De Drive, continue on the Railroad Spur Trail onto the Mary Carter Greenway Trail.

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