Work to begin on US 6, US 138, and CO 14 (a.k.a. Sterling S-Curve) on April 1

March 30, 2019 - Northeastern Colorado - New concrete pavement construction and improvements to sidewalks, curb ramps and storm sewers will result in a safer and smoother ride for vehicles

STERLING — On April 1, the Colorado Department of Transportation will begin work on US Highway 6, US 138, and Colorado Highway 14 in Sterling to complete work on the new S-Curve through town. C:\Users\fieljp\AppData\Local\Microsoft\Windows\INetCache\Content.Word\Screen Shot 2019-03-21 at 4.06.48 PM.png

These three major highways intersect within downtown Sterling and currently limit growth and development within the downtown core, lead to out-of-direction travel, and cause disruption from heavy truck traffic.

This project will help alleviate downtown transportation issues by safely directing large trucks moving east-west through town onto a bypass or S-Curve alignment that will use abandoned railroad rights-of-way between 4th Street/Chestnut and 5th Street/Division/West Main, completing a direct connection between CO 14 and US 6 in the east-west direction.

The project will also include conversion of several one-way streets to two-way streets, intersection improvements and signalization, reconstruction of West Main, and a complete mill and overlay of US 138.

“This project has been a long time coming.  We have worked with the locals and our partners to make this project a reality,” said Johnny Olson, CDOT deputy executive director. “It is a project that will improve safety, move freight and relieve congestion and improve people lives in Sterling.”

Project limits are as follows:

  • North boundary: mile point 2.95 on US 138

  • East boundary: MP 404.60 on US 6

  • South boundary: MP 404.21 on US 6

  • West boundary: MP 236.10 on CO 14

All work on the project will be completed by Fall 2020. Parsons Construction Group of Westminster will perform as the prime contractor on this $16.6 million project.

TRAVEL IMPACTS: Work will begin at the intersections of US 6 (3rd Street) and Poplar and US 138 and 2nd Street. Travelers should expect lane closures and traffic delays in the work zone throughout the course of the project. Typical construction work hours will run from 7 a.m. to 5 p.m. Monday through Friday. There is no weekend or night work planned for this project. There will be a speed limit of 25 m.p.h. on CO 14 and 40 m.p.h. on US 138 and a width restriction of 11 ft. on vehicles 24/7 throughout the project zone.

STAY INFORMED: For project updates, please email [email protected] or call the project hotline at (970) 425-2098. The project website is: http://

Information about weekly lane closures is available at For information regarding CDOT projects statewide, log on to Updates are also available via Twitter @coloradodot and be sure to “Like” our Facebook page: Thank you for going Slow for the Cone Zone!

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