CO 12 Bridge Replacement in Las Animas County

About the Project:

The Colorado Department of Transportation and contractor Siete, Inc., will replace an aging bridge on CO 12 between Stonewall and Weston. The bridge is located at mile point 42.75, over the North Fork Purgatoire River. The anticipated completion date is December 2023.

Project Benefits:

This rural roadway provides important mobility to this region of Las Animas County and replacing the 85-year-old bridge will provide motorists with a stable and up to date structure with a 100-year design life, wider shoulders and smoother pavement. While working on this project, crews will also make safety improvements to this stretch of highway by replacing the existing guardrail and installing rumble strips and delineators.

Work Schedule:

  • Daytime work hours range from 7 a.m. to 5:30 p.m. Monday through Friday. 

Traffic Impacts:

  • The single lane detour is in place through the remainder of the project.
  • The detour is 24/7 and guided by three temporary traffic signals, two on CO 12 and one on County Rd 21.6.
  • Motorists can expect 10–15-minute delays.
  • Speed limit of 40 mph through the construction work zone.

Work this Week & Lane Closures
CO 12 Las Animas Bridge Project

Project Facts

  • Cost: $4.6 Million
  • Contractor:  Siete, Inc.
  • Timeline: April 2023 to December 2023
  • Location: CO 12
    • City/Town: between Stonewall and Trinidad
    • Mile Point:  MP 42.75,
    • County: Las Animas
CO 12 Las Animas County Bridge Replacement project map
CO 12 Las Animas County Bridge
Replacement Project Map