Projects

C-470 Express Lanes

Full Closure of  north and southbound Acres Green Drive

When: Monday, December 18, 2017

Time: 8:30 p.m. - 5:30 a.m.

Details: Northbound and southbound Acres Green will be closed below C-470 for bridge-pier foundation work.

Detour:

  • Southbound Acres Green Drive detour:
    Take Parkway Drive west to East County Line Road. They will then head west on East County Line Road to South Quebec Street, then south to Park Meadows Drive. Once on Park Meadows Drive, motorists will be directed east back to Acres Green Drive. This detour is approximately 1.5 miles.
  • Northbound Acres Green Drive detour:
    Head west on Park Meadows Drive, then to South Quebec Street. Motorists will then head north on South Quebec Street to East County Line Road to reconnect with Acres Green Drive. This detour is approximately 1.5 miles.

C-470 and Erickson Full Closure

When: Wednesday, December 20 and Thursday, December 21, 2017

Time: 10:00 p.m. - 5:00 a.m.

Details: East and westbound C-470 between Santa Fe  and Lucent, and north and southbound Erickson Blvd. between Plaza Dr. and County Line Rd. will be closed for bridge girder installation.

Detour:

  • Eastbound C-470 Detour: Traffic will be detoured off eastbound C-470 at Santa Fe Dr. to eastbound County Line Rd and back onto C-470 at Lucent.
  • Westbound C-470 Detour: Traffic will be detoured off C-470 at Lucent Blvd. to westbound County Line Rd. to Santa Fe Dr. and back onto westbound C-470.
  • Northbound Erickson Blvd. Detour: Use Plaza Dr. to Lucent to County Line Rd.
  • Southbound Erickson Blvd.: Use County Line Rd. to Lucent to Plaza Dr.

High Line Canal Trail Full Closure

As of Monday, Oct. 30, the High Line Canal Trail is closed for approximately two months for drainage work

  • The trail detour route will use the C-470 Trail to Erickson Boulevard, then  County Line Road to Primo Road, and back to the High Line Canal Trial. (See map below.)
  • Follow posted detour signs.
  • Construction activities are weather dependent and the schedule is subject to change.

 

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.

Project Facts

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

Updates

Concrete Paving
Castle Rock Construction continues paving concrete on eastbound C-470 between Quebec and Lucent for the new widened highway.

Frequent Nighttime Ramp Closures and Traffic Shifts
Travelers can expect frequent nighttime ramp closures from 8 p.m. to 5:30 a.m. These closures are necessary for striping operations, maintenance, and setting of temporary barrier. The detours are usually approximately 3 miles round trip to the next exit and back. 

Areas between Yosemite and Wadsworth have been restriped to shift the traffic alignment. Be sure to drive carefully through the construction zone and obey posted speed limit signs.

Reconstruction of the South Platte River Bridges
Work on the new eastbound South Platte River Bridge has significantly progressed. Bridge foundations have been constructed, concrete girders have been set, and the bridge deck pour has occurred. Because of the proximity to the Mary Carter Greenway Trail, flaggers have been placed to guide trail users through the construction zone when needed. The South Platte River bridges are the only bridges being fully reconstructed with the C-470 project. They are being brought to current design standards and when complete will also accommodate increased vertical clearance for equestrian use on the Mary Carter Greenway Trail.

University, Broadway, Big Dry Creek, Erickson and Yosemite Bridge Widenings
The bridges over University, Broadway, and Big Dry Creek have been widened. Work on the Yosemite and Erickson bridge widenings are well underway. Lane closures on Yosemite and Erickson can be expected.

Wadsworth to Santa Fe
Activity between Wadsworth and Santa Fe continues to increase with the extension of the construction zone advanced warning signage, grading operations, replacement of the South Platte River Bridges, and installation of equipment and devices (i.e. ramp meters, cameras, Variable Message Signs, etc.) for the corridor.

Lucent to Quebec
Construction continues between Lucent and Quebec including trail reconstruction, temporary barrier and restriping, earthwork and drainage operations, asphalt paving, retaining and noise wall construction, and ITS work along the outside shoulders of east and westbound C-470. 

Castle Rock Construction has erected a new concrete batch plant near University. Drivers should be aware that concrete trucks will cross eastbound ramps to get to the paving operation. Pay attention to flagger instructions when they are stationed at these ramp crossings.

Lane Closures for December 8-December 16

 Saturday (12/9) 12 a.m.-5:30 a.m.: Eastbound Santa Fe off-ramp full closure; westbound C-470 at Broadway off-ramp full closure.

Saturday (12/9) 8 p.m.-5:30 a.m.: Full ramp closures possible at eastbound Broadway on- and off-ramp, eastbound Quebec off-ramp, westbound Quebec on- and off-ramp.

Friday (12/8) 9 p.m.-6 a.m.: Right and left lane closures on Yosemite and Acres Green.

Friday (12/8) 7 p.m.-5:30 a.m.: Full ramp closures possible at eastbound Lucent on-ramp, eastbound University on- and off-ramp, and westbound Lucent off-ramp.

Saturday (12/9) 8 p.m.-8 a.m.: Alternating right and left lane closures on east and westbound C-470 for  median widening earthwork, setting of temporary barrier, bridge construction, and equipment mobilization.

Sunday (12/10), Monday (12/11), and Saturday (12/16)12 a.m.-5:30 a.m.: Westbound C-470 at Santa Fe off-ramp and eastbound C-470 at Santa Fe on-ramp full closure for temporary ramp widening work.

Monday (12/11)-Friday (12/15) 8:30 a.m.-3:30 p.m.: North and southbound alternating right and left lane closures on Lucent, Erickson, Acres Green, University, and Broadway.

Monday (12/11)-Friday (12/16) 9 a.m.-3:30 p.m.: Partial ramp closures on east and westbound University, Broadway, and Lucent ramps for ITS work.

Sunday (12/10) 7 p.m.-7 a.m.: Right and left lane closures on Broadway and University.

Sunday (12/10) 8 p.m.-5:30 a.m.: Eastbound C-470 at Quebec on-ramp full closure and alternating right and left lane closures on C-470.

Sunday (12/10), Tuesday (12/12), Thursday (12/14) and Saturday (12/16) 8 p.m.-5:30 a.m.: Eastbound C-470 at Broadway on- and off-ramp full closures; eastbound C-470 at Quebec off-ramp full closure.

Monday (12/11)-Wednesday (12/13) 10 p.m.-6 a.m.: North and southbound Acres Green right and left lane closures for bridge construction.

Monday (12/11)-Friday (12/15) 9 p.m.-6 a.m.: North and southbound Yosemite right and left lane closures for bridge construction.

Tuesday (12/12) and Thursday (12/14) 10 p.m.-5:30 a.m.: Westbound C-470 at Santa Fe off-ramp full closure and eastbound Santa Fe on-ramp full closure for ramp widening work.

Wednesday (12/13) and Friday (12/15) 7 p.m.-5:30 a.m.: Full ramp closures of eastbound C-470  on-ramp Lucent and University; westbound C-470 off-ramp at Lucent and University.

Thursday (12/14) and Friday (12/15) 8:30 p.m.-5:30 a.m.: North and Southbound Acres Green full closures for bridge construction.

 Saturday (12/16) 8 p.m.-8 a.m.: Eastbound C-470 at Quebec on-ramp full closure for temporary ramp widening work.

Sunday (12/10)-Saturday (12/16) 7 p.m.-8 a.m.: Alternating right and left lane closures on east and westbound C-470 for median widening earthwork, setting of temporary barrier, and bridge construction.

Photo of the Week

72" concrete pipe ready to be installed near Colorado Blvd. on westbound C-470.

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