The Colorado Department of Transportation, in partnership with SEMA Construction, will begin construction of the new Interstate 25 and US Highway 50B interchange in November.

This project is located in Pueblo on I-25 from Mile Point 99.7 to MP 101.4 and on US 50 from mile post 315.9 to mile post 316.6. Work consists of building five new bridge structures, retaining walls and noise walls, roadway and ramp reconstruction, embankment, safety improvements, drainage and erosion control along the five miles of impacted roadway.

When complete, the new interchange will be located just north of the existing location and operate as a diverging diamond interchange (DDI) to increase safety and mobility for drivers.

“The new I-25/US 50B interchange is a priority for CDOT because the current interchange poses safety concerns with many trucks on the interstate hitting the low clearance bridge or getting stuck on the interchange itself. The new diverging diamond interchange will help improve traffic flow on this important freight corridor and increase safety and mobility for all road users,” said CDOT Region 2 Transportation Director Shane Ferguson.

Construction activity will take place adjacent to the roadway to minimize the impacts on I-25 and US 50 traffic during the first year of construction. Work will be performed in phases and working times will vary, but motorists can generally expect construction between 7:00 a.m. and 7:00 p.m., Monday through Friday. Lane closures, shoulder closures, reduced speeds in the work zone, delays and detours are expected throughout the duration of the project. The project is expected to be completed in early summer 2027.