I-25 Lone Tree Mobility Hub Improvements | Construction Phase

Travel Advisory

Overnight lane closures and ramp closures expected on north and southbound I-25 from Mile Point 190 to 195 surrounding Lincoln Avenue. Crews will be setting permanent barriers and re-striping interstate lanes to accommodate upcoming construction activities in the median. Refer to Traffic Impacts section for details.

About the Project

As the state continues to grow, the Colorado Department of Transportation (CDOT) and its partners continue to plan and implement high-quality transportation infrastructure and services to accommodate Colorado’s changing needs. Integrating multimodal choices enables the transportation system to move goods and people throughout the network. CDOT’s “Mobility Hub” re-envisions the traditional park-and-ride transit stop. The Mobility Hubs are transportation centers at select locations that emphasize multimodal options, including:

  • Seamless mode-to-mode transitions
  • Real-time passenger information
  • Passenger convenience
  • Opportunities to create transit-friendly development in surrounding areas

The Lone Tree location will be the newest mobility hub to undergo construction, connecting to a network of hubs along I-25 from Fort Collins to Pueblo. This transit improvement project will consist of constructing slip ramps along the I-25 northbound off-ramp and southbound on-ramp just south of Lincoln Avenue for use by Bustang transit services. Additionally, the project team will build a pedestrian bridge over I-25 that connects the two transit stops for pedestrian and bicycle access. Pedestrian ramps and stairs will be provided on the west side of the mobility hub between I-25 and Trainstation Circle.

Other infrastructure upgrades will include:

  • Installation of bus shelters
  • New sidewalks
  • A passenger pick-up and drop-off area

The new mobility hub will provide Bustang users access to the light rail, Lone Tree’s Link on Demand transit service and connect to the future Lone Tree City Center.

Work this Week & Lane Closures on I-25 & Lincoln Avenue

Project Facts

  • Construction Cost: $16.5 million
  • Contractor: Structures Inc.
  • Timeline: May 2025 to Summer 2026
  • Location: I-25 and Lincoln Avenue interchange 
    • Nearest Town/City: Lone Tree
    • Mile Point(s): MP 191 to MP 193.5
    • County: Douglas
Map of the I-25 Lone Tree Mobility Hub project location
Map of the I-25 Lone Tree Mobility Hub project location

Bridge Concepts

The following images are concept drawings of the mobility hub’s pedestrian bridge over I-25 that will connect two transit stops for pedestrian and bicycle access. More information is provided below:

Lone Tree Mobility Hub Concept Drawing showcasing the pedestrian bridge
Concept drawing showcasing the pedestrian bridge from the west side of I-25 vantage point
Closeup view of the pedestrian bridge concept drawing showcasing pedestrian ramps and staircases for access to transit hubs and future trail systems
Closeup view of the pedestrian bridge concept drawing showcasing pedestrian ramps and staircases for access to transit hubs and future trail systems
Lone Tree Mobility Hub Bridge Concept Rendering
Concept drawing showing the full design scope of the pedestrian bridge

Project Benefits

  • Providing affordable and reliable transportation through CDOT’s interregional express bus service Bustang
  • Offering access to the Regional Transportation District’s (RTD) light rail and other local transit, such as Lone Tree’s Link on Demand shuttle service
  • Allowing connectivity through the Lincoln Avenue interchange to employment and housing locations

Work Schedule

  • The project is anticipated to begin June of 2025 and continue into the summer of 2026
  • General working hours are from 7 a.m. to 5 p.m., Monday through Friday
  • Night work will be limited, but is anticipated intermittently throughout the course of construction
    • General nighttime hours will occur from 7 p.m. to 5 a.m., Sunday night through Friday morning

Traffic Impacts

Due to weather delays, the overnight traffic impacts on I-25 this week have changed. Please review the updated schedule below: 

  • Wednesday night, Sept. 24, 2025: Northbound I-25 impacted 
    • Triple lane closures on northbound I-25 between Castle Pines Parkway and Lincoln Avenue.
      • First lane will close at 6 p.m.
      • Second lane at 8 p.m.
      • Third lane at 9 p.m. Traffic will be reduced to one lane
    • The northbound I-25 off-ramp to Lincoln Avenue will close at 6 p.m.
      • Detour route to East County Line Road to southbound I-25 toward the Lincoln Avenue exit
    • The westbound Ridgegate Parkway on-ramp to northbound I-25 will close at 10 p.m.
      • Detour route to South Peoria Street north to Lincoln Avenue to the northbound on-ramp
    • Speeds will be reduced to 65 MPH in northbound lanes
    • All lanes and ramps will reopen by 6 a.m.,Thursday Sept. 25
  • Thursday night, Sept. 25, 2025: Southbound I-25 impacted
    • Double lane closures on southbound I-25 from C-470 to Ridgegate Parkway
      • First lane closed at 7 p.m.
      • Second lane closed at 8 p.m. Traffic will be reduced to a single lane
    • The Lincoln Avenue on-ramps to southbound I-25 will be closed at 6 p.m.
      • Detour route east to South Peoria Street, south to Ridgegate Parkway and west to the I-25 on-ramp
    • Speeds will be reduced to 55 MPH in southbound lanes
    • All lanes and ramps will re-open at 6 a.m.
  • Friday, Sept. 26, 2025
    • The project team will re-stripe north and southbound lanes into a new configuration on Wednesday and Thursday nights to accommodate upcoming median work
  • Sunday night, Sept. 28: Northbound and southbound I-25 impacted 
    • Double left lane closures on north and southbound I-25 from C-470 to Ridgegate Parkway starting at 8 p.m. Crews will be setting new median barriers
    • All lanes will reopen to traffic at 6 a.m. on Monday, Sept. 29
    • Drivers can anticipate up to 20-minute delays between 6 and 10 p.m. Wednesday, Thursday and Sunday nights
  • Depending on weather, overnight construction activities may continue into Monday night, Sept. 29.
  • All lane and ramp closures will reopen during the day
  • The new lane configurations will be permanently in place on I-25 for the next several months.
  • Lanes will be restricted to an 11-foot width during this time. 
  • Visit COtrip.org for real-time travel conditions and road closure information.

Detour map of northbound I-25 off-ramp to Lincoln Avenue
Detour map of northbound I-25 to Lincoln Avenue off-ramp
Westbound Ridgegate Parkway to northbound I-25 on-ramp closure with detour route. This detour is scheduled for Sunday night, Sept. 21.
Westbound Ridgegate Parkway to northbound I-25 on-ramp closure with detour route. This detour is scheduled for Sunday night, Sept. 21.

Detour map of southbound I-25 off-ramp to Lincoln Avenue
Detour map of Lincoln Avenue to southbound I-25 on-ramp

Motorists can expect the following impacts during the period of construction:

  • The southbound I-25 on-ramp and northbound I-25 off-ramp at Lincoln Avenue will experience lane shifts during the duration of the project with intermittent full closures
    • During full ramp closures, detour routes will be in place
  • There will be occasional single and multi-lane closures on north and southbound I-25 surrounding the Lincoln Avenue interchange
  • A full closure across I-25 is anticipated over several nights when the pedestrian bridge over the interstate is being set
    • This is anticipated to take place in the fall of 2025
    • Additional notice will be given prior to the full interstate closure, with detour routes in place
  • Center lanes on north and southbound I-25 will be shifted to allow for median construction work activities
  • There will be some pedestrian detours while sidewalks are being constructed in the surrounding area
  • The project team is working closely with Bustang and other transit services to limit disruption to current transportation schedules at Lincoln Avenue
  • Refer to COtrip.org for real-time travel conditions and road closures