Arapahoe Bridge over Big Dry Creek Replacement Project

image of a road with the words Arapahoe Road over Big Dry Creek

Reconstruction of the bridge on Arapahoe Road, east of University Boulevard is underway. The existing bridge over Big Dry Creek was built in 1945 and is past its useful life. The Arapahoe Road Bridge project will replace the existing bridge structure and make other related improvements. Construction is slated for completion in summer 2023.

Project Update (January 2023)

Despite work delays caused by heavy rains in summer 2022, the project is still on schedule and within budget. Work hours are 7 a.m. to 6 p.m., Monday through Friday. One lane of traffic will be maintained in each direction during construction. Please pay attention while driving in the work zone and never drive distracted. Motorists should expect increased Arapahoe County Sheriff patrols in neighborhoods north and south of Arapahoe Road to manage cut-through traffic. All construction activities are weather-dependent and subject to change for the safety of crews and the traveling public.

Road closures should be expected during the project. Prior to any closures an announcement will be sent to advise the public of alternate travel routes. People living in the nearby neighborhoods will still be able to get to their homes. To stay informed, sign up for our project announcements here, or follow us on social media @CentennialGov.

Upcoming Construction Impacts:

  • Week of Jan. 2 – Crews will install the pedestrian railing and pour the sidewalk on the new bridge. Watch for crews as they finish paving Elizabeth Street and reopen the roadway (weather dependent).  
  • Week of Jan. 9 – Crews will work on the storm sewer infrastructure, including pouring new concrete inlets and installing new storm sewer mains.
  • Week of Jan. 16 – Crews are planning to move to the next phase of construction. Traffic will switch to a new lane configuration and new striping will be put down. Motorists should proceed with caution as the route and lanes will change through the construction zone. Additionally, the existing creek diversion will be extended below the bridge for the next phase of construction.
  • Jan. 21 – Traffic was shifted to a new lane configuration to accommodate the next phase of construction. One lane will be provided westbound and two lanes will be provided eastbound for the duration of this phase. The phase change will provide room for the north half of the bridge to be demolished and rebuilt. This phase of construction is expected to last through summer, 2023.
  • Ongoing – Traffic continues to travel in new lane configurations to accommodate construction. One lane will be provided westbound and two lanes will be provided eastbound through summer 2023. Detour routes on University Boulevard and Dry Creek Road are highly encouraged.

The pedestrian/bike path is closed for the duration of the project. VIEW THE DETOUR MAP

View the project flyer(PDF, 259KB)

View images and videos of construction.

This reconstruction project will:

  • Replace the existing bridge with a wider and taller structure
  • Improve pedestrian access over and around the bridge
  • Make improvements to the Big Dry Creek drainage and waterway system

  • Project Schedule

    Construction is expected to be complete in summer 2023. All work will be weather-dependent and will be subject to change.

    Project Map


    map of project area

  • Stay Informed

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    Hotline: 720-758-8298

    Construction Team (Benesch): Ryan Garringer, PE Construction Engineer