County Line Road Bridge

Construction of the County Line Road bridge was completed in November 2021. Thank you for your patience! 

In spring 2021, the Colorado Department of Transportation and contractor partner Kraemer North America will began major reconstruction of the County Line Road bridge in Monument as part of the I-25 South Gap project. The County Line Road bridge will double in size, and accommodate one through-lane and one turn-lane in each direction, as well as shoulders on each side of the bridge.

For most of construction, access across the County Line Road bridge will be maintained.

County Line Road Bridge Final Alignment

Construction Approach

The bridge will be built in two phases. First, crews will build the outside lanes of the bridge. Once those lanes are built, they will shift traffic to the new bridges so they can demolish the existing bridge structure, reconstruct it  and then connect it to the new outside lanes. This phasing will allow for crews to maintain traffic on the bridge while keeping crews safe.

Traffic Impacts

Improvements to the County Line Road bridge will fix sight distance issues on the ramps, upgrade aging infrastructure (built in 1964) and improve County Line ramp acceleration and deceleration lanes. Impacts for this work include:

  • Flaggers and increased truck traffic on the County Line Road bridge
  • Six-week closure of the northbound I-25 on- and off-ramps at County Line Road
  • Four-day closure of the County Line Road bridge, intersections and ramps
  • Periodic closures of County Line Road bridge and I-25, with ramp detours, for overhead bridge work

Stay tuned to this website or sign up for our weekly updates for important updates on major impacts and milestones associated with the reconstruction of the County Line Road bridge.

Construction Timeline

Major reconstruction of the County Line Road bridge is expected to be complete by the end of 2021. Construction of the 18-mile corridor remains on-time for completion in November 2022. All construction activities are weather-dependent and subject to change.

Watch for narrower lane and shoulder widths, and always pay attention and follow posted speeds. Thank you for your patience during construction!