I-25 Climbing Lane

Project complete

Project Background

Starting the week of May 16, 2016, crews began working on the Interstate 25 Climbing Lane project, spanning from mile point 245.87 to mile point 249.84.  This project will add a third climbing lane on the southbound side of I-25 to provide trucks and oversized vehicles an additional travel lane.

The additional lane will provide relief to motorists and improve overall traffic operations by reducing delays caused by inadequate passing opportunities and allowing for two lanes of free-flowing traffic. Additional work items include:

  • the mill and overlay
  • all northbound and southbound lanes
  • widening the bridge at Valley Road
  • excavation, embankment and drainage improvements along the corridor.

This project is expected to be completed by spring 2017.

SEMA Construction of Centennial was awarded the prime contract on this approximately $10.3 million project.

Travel Impacts

Travelers should expect shoulder closures during road improvements. Speed limits through the project work zone will be reduced to 65 mph. No vehicle width restrictions are predicted during this project. 

  • Daytime construction: 7 a.m. - 5:30 p.m., Monday - Friday
  • Nighttime construction(for the mill and overlay): 9 p.m. - 5 a.m. starting Sunday, May 22
    • Expect single lane closures for both northbound and southbound traffic.

Communicating with Us

To receive update about road conditions, construction information, or if you have questions or concerns, please contact the project team.