Signalization project in Greeley begins Aug. 16

News Release

August 10, 2021 - Northeastern Colorado - Motorists can expect delays

WELD COUNTY – The Colorado Department of Transportation, in partnership with Interface Communications, will begin work on Aug. 16 to install four new traffic signals. Crews will work to install the traffic signals at the intersections of Colorado Highway 257 and US Highway 34 on- and off-ramps in Greeley. Work will also include minor striping changes.


CO 257 Signalization project map

“In 2017 a signal warrant study determined that signalization of the on/off ramps would improve the overall safety and operations of this interchange. This signalization will provide safer access and improve the flow of traffic during peak periods,” said Regional Transportation Director Heather Paddock.

Travel Impacts 

  • Along CO 257, there will be shoulder closures and single lane closures at all four intersections and on- and off-ramps. 

  • Most often, traffic impacts are expected to be minimal and will be maintained in two-lane configurations, with traffic flowing in both directions. 

  • Occasional lane closures and intermittent traffic stops are to be expected.

  • Motorists can expect lane closures, lane shifts, survey crews, and flaggers on the roadway, and work will include the placement of signal poles. For the safety of motorists and workers, drivers are reminded to obey all posted speed limits through the project. Work is expected to be completed by December 2021.

  • General working hours will be Monday through Friday 7 a.m. to 5 p.m.

Project & Travel Info

For additional information about this project, contact the project team. 

Travelers are urged to “know before you go.” Gather information about weather forecasts, anticipated travel impacts, and current road conditions prior to hitting the road. CDOT resources include:


Remember: Slow For the Cone Zone

The following tips are to help you stay safe while traveling through maintenance and construction work zones.

  • Do not speed in work zones. Obey the posted speed limits.

  • Stay Alert! Expect the unexpected.

  • Watch for workers. Drive with caution.

  • Don't change lanes unnecessarily.

  • Avoid using mobile devices such as phones while driving in work zones.

  • Turn on headlights so that workers and other drivers can see you.

  • Expect delays, especially during peak travel times.

  • Allow ample space between you and the car in front of you.

  • Anticipate lane shifts and merge when directed to do so.

  • Be especially alert at night while driving in work zones.

  • Be patient!

About CDOT

CDOT’s Whole System-Whole Safety program has one simple mission — to get everyone home safely. Our approximately 3,000 employees work tirelessly to reduce the rate and severity of crashes and improve the safety of all modes of transportation. The department manages more than 23,000 lane miles of highway, more than 3,000 bridges and 35 mountain passes. CDOT also manages grant partnerships with a range of agencies, including metropolitan planning organizations, local governments and airports. It also operates Bustang, the state-owned interregional express bus service. Gov. Jared Polis has charged CDOT to further build on the state’s intermodal mobility options.