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C-470 Express Lanes Project Update
The following information was provided by the Colorado Department of Transportation (CDOT). For complete project information, visit the C-470 Express Lanes Project page. Project information 24-hour hotline: 303-347-0507
Permanent overhead signage structures are going up
In January several overnight closures were in place while crews installed permanent signage structures in numerous locations. These structures will be in support of various signs including variable message boards, exit signs and express lane signs.
Mary Carter Greenway Trail
Beginning in mid-February, the Mary Carter Greenway Trail will close for demolition of the eastbound South Platte River Bridge. This closure is expected to last three to four weeks. Flaggers will be on site and detour information will be posted on the project website.
Noise wall replacement at Wolhurst
Crews will be replacing the noise wall at Wolhurst Senior Community from the end of January through mid- February. Temporary noise barriers will be set up where the wall currently sits. This temporary barrier will be in place until crews build the new wall and complete drainage improvements.
Completed Traffic Switches
- Eastbound University to Quebec
- Westbound Quebec to University
- Eastbound Acres Green bridge
- Eastbound Lucent to Broadway
- Eastbound Broadway to University
- Westbound Broadway to Lucent
- Westbound Lucent to Erickson
- Eastbound Quebec to Yosemite
- Eastbound Yosemite to I-25
- Westbound I-25 to Yosemite
- Westbound Yosemite to Quebec
- Eastbound Wadsworth to Santa Fe
- Westbound University to Broadway
Completed Bridge Widenings
- Yosemite St.
- Acres Green Dr.
- Big Dry Creek
- University Blvd.
- Lucent Blvd.
- Erickson Blvd.
Intelligent Transportation Systems (light poles, conduit and tolling infrastructure)
- 12 miles of new fiber line (ITS Backbone) has been installed
- 4 toll points have been installed and are currently being tested
Completed Ramps with Concrete Pavement
- Eastbound University on and off
- Eastbound Broadway on and off
- Eastbound Quebec on and off
- Eastbound Lucent on
- Westbound Lucent off
- Eastbound Yosemite off
- Westbound Broadway on
- Eastbound Santa Fe off
Northbound and southbound I-25 ramps to westbound C-470
As work continues in the I-25 interchange area, traffic using the northbound and southbound ramps to westbound C-470 are being detoured onto northbound E-470 to Peoria and back to westbound C-470. This closure is used intermittently during nighttime shifts. E-470 tolls are waived for detoured traffic.
Connector Ramps for I-25 northbound and southbound at C-470 and E-470
Connector ramps to I-25 will continue to have nighttime closures. These closures are necessary to perform bridge construction and ramp widening work, barrier placement, drainage installation and striping operations.
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.
- Demolition of the old westbound South Platte River bridge will begin in mid-to late February and is expected to last approximately two months. During this time, westbound traffic will be diverted onto the northern section of the new eastbound South Platte River Bridge. Eastbound traffic will remain on the southern portion of the bridge. This will be a temporary configuration until the westbound South Platte River Bridge is reconstructed.
- The Mary Carter Greenway Trail at the South Platte River will close for demolition of the westbound bridge. Detours will be in effect and flaggers will be present
Santa Fe to Lucent
Drainage installation and noise wall construction continues. Subgrade treatment is occurring. Retaining wall construction near the Highline Canal Trail is on-going.
Lucent to Quebec
- Eastbound traffic has been shifted onto new permanent concrete pavement between Lucent and Quebec. In addition, westbound traffic between Quebec and University and Broadway to Erickson has also been shifted
- Concrete paving is on-going. While paving in the center median, the concrete conveyor system is being used.
- Subgrade treatment is taking place.
- Crews will continue to complete concrete barrier, guardrail and overhead sign installation, as well as permanent drainage work.
- ITS work (light poles and tolling infrastructure in median) is on-going.
Quebec to I-25
- Drainage pond grading and pipe installation.
- Earthwork and wall construction in the I-25 interchange area continues.
- ITS work such as installing conduit and pullboxes.
- Bridge work at Yosemite and Acres Green.
- Permanent concrete barrier installation is on-going.
- Temporary asphalt paving in the median and I-25 interchange can be expected.
- Bridge column/abutment construction, girder set and bridge deck pour complete for new direct connect bridge near I-25 to westbound C-470. Similar work activities will take place as bridge work continues in the I-25 interchange area.
- Installation of overhead sign structures.
C-470 Trail work continues
C-470 Trail reconstruction continues with the placement of new concrete pavement on the trail in various locations between Quebec and Broadway. Moving the trail is necessary to accommodate widening of the highway. Temporary asphalt pavement remains in some areas to detour the many bicyclists and pedestrians who utilize the trail. At times, flaggers have been positioned along the trail to direct users and keep them safe when construction work is taking place nearby. The final result of the C-470 Trail improvement will include a new trail underpass at both Colorado and Quebec, so users will no longer have to cross those busy intersections but will be able to safely pass underneath them. In mid-January the trail access was detoured during work at Colorado Boulevard. Access is expected to be restored in early February.
In addition to the C-470 Trail improvements being completed within the C-470 Express Lanes project, Douglas County is planning a future project that includes a grade-separated crossing of the trail at Santa Fe and C-470. The grade separated crossing is not a part of the C-470 Express Lanes Project. More information can be found on the Douglas County website.
Images of the future
About the C-470 Express Lanes Project
The Colorado Department of Transportation kicked off the C-470 Express Lanes project in the fall of 2016. This $276 million project will increase mobility and user choice along 12.5 miles of C-470 between I-25 and Wadsworth Boulevard. In the westbound direction, two Express Lanes will be built from I-25 to Colorado Boulevard and one Express Lane from Colorado Boulevard to Wadsworth. In the eastbound direction one Express Lane will be constructed along the length of the project between I-25 and Wadsworth Boulevard. Two general purpose lanes in each direction will remain free for motorists.
The project also includes full reconstruction of existing pavement, the addition of auxiliary lanes at select locations, on-and off-ramp improvements, realignment of substandard curves, widening of existing bridges, replacement of the bridges over the South Platte River, and installing tolling equipment.
When the C-470 Express Lanes project is complete, motorists will have the option to use the Express Lanes for a faster, more reliable commute, or the two free general purpose lanes. Construction is expected to conclude in 2019.
For project information please contact the 24 hour hotline at 303-347-0507, contact us through the project email at C470info@flatironcorp.com, or for up-to-date information visit www.codot.gov/projects/C470ExpressLanes.