Bridge work will require full nighttime closures of I-25 and Prospect Road on Aug. 3-4 and Aug. 10-13

Travel Advisory

July 27, 2020 - Northeastern Colorado

FORT COLLINS The Colorado Department of Transportation continues work on the new Prospect Road bridge over I-25. Once this bridge is complete in late 2020, the Prospect Road bridge will feature two through lanes, a bike and pedestrian lane, and center turn lanes in each direction. During nighttime hours on Aug. 3 and 4, the girders will be erected on the north portion of the bridge, and during nighttime hours on Aug. 10 - 13,  the deck panels will be placed.  


  • These activities will require the following I-25 closures:

    • Full closures of northbound and southbound I-25 at Prospect Road from 9 p.m., Aug. 3 until 5 a.m., Aug. 4, and from 9 p.m., Aug. 4 until 5 a.m., Aug. 5, 

    • Northbound I-25 at Prospect Road from 9 p.m., Aug. 10 until 5 a.m., Aug. 11, and from 9 p.m., Aug. 11 until 5 a.m., Aug. 12

    • Southbound I-25 at Prospect Road from 9 p.m., Aug. 12 until 5 a.m., Aug. 13 and from 9 p.m., Aug. 13 until 5 a.m., Aug. 14.

      • I-25 traffic will be detoured using the off-an on-ramps up and over Prospect Road.  

  • The girder set will require full closures of Prospect Road between the on- and off-ramps from 9 p.m., Aug. 3 until 5 a.m., Aug. 4 and from 9 p.m., Aug. 4 until 5 a.m., Aug. 5.

    • Westbound Prospect Road traffic will be detoured north on I-25 to Exit 269, Mulberry Street and back onto southbound I-25 to Exit 268, Prospect Road.

    • Eastbound Prospect Road traffic will be detoured south on I-25 to Exit 265, Harmony Road and back onto northbound I-25 to Exit 268, Prospect Road.

CDOT’s commitment to highway safety through their Whole System Whole Safety initiative deems these closures necessary to protect motorists from potential danger posed by overhead work and equipment staged on the roadway as they travel along I-25.

The I-25 North Express Lanes: Johnstown to Fort Collins Project will increase capacity by adding an Express Lane in both directions, constructing inside and outside shoulders, and replacing aging bridges. The project will also improve multimodal access to regional transit to promote mode shift, improve bus service performance by adding new bus slip ramps from I-25 to the new Park-n-Ride at Kendall Parkway, and improve interchanges at CO 402, Prospect Road and US 34.


More information about this project is available at: 


The following tips are to help you stay safe while traveling through maintenance and construction work zones.

  • Do not speed in work zones. Obey the posted speed limits.

  • Stay Alert! Expect the unexpected.

  • Watch for workers. Drive with caution.

  • Don't change lanes unnecessarily.

  • Don’t drive distracted. Don’t use mobile devices such as phones while driving.

  • Turn on headlights so that workers and other drivers can see you.

  • Be especially alert at night while driving in work zones.

  • Expect delays, especially during peak travel times.

  • Allow ample space between you and the car in front of you.

  • Anticipate lane shifts and merge when directed to do so.

  • Be patient!


Safe transportation infrastructure is essential for emergency first responders and freight drivers as Colorado navigates the COVID-19 pandemic. With that in mind, construction continues on CDOT projects with social distancing and other health safety measures to reduce COVID-19 exposure on the worksite. The Colorado Department of Public Health and Environment announced guidelines for construction activities. The public is urged to join the campaign for #DoingMyPartCO and practice social distancing, wear face masks, stay at home when possible, and avoid nonessential travel. With fewer vehicles on the roads, CDOT crews will be able to work more efficiently and safely.


In early 2019, CDOT announced its Whole System — Whole Safety initiative to heighten safety awareness. This initiative takes a systematic, statewide approach to safety combining the benefits of CDOT’s programs that address driving behaviors, our built environment and the organization's operations. The goal is to improve the safety of Colorado’s transportation network by reducing the rate and severity of crashes and improving the safety of all transportation modes. The program has one simple mission—to get everyone home safely.


CDOT has approximately 3,000 employees located throughout Colorado, and manages more than 23,000 lane miles of highway and 3,429 bridges. CDOT also manages grant partnerships with a range of other agencies, including metropolitan planning organizations, local governments and airports. It also administers Bustang, the state-owned and operated inter-regional express service. Governor Jared Polis has charged CDOT to further build on the state’s multimodal mobility options.