Traffic to move out of head-to-head configuration on I-70 Arriba Project next week

Travel Advisory

October 15, 2020 - Northeastern Colorado

LINCOLN AND KIT CARSON COUNTY — On Tuesday, the Colorado Department of Transportation and contractor partner, Castle Rock Construction Company, will move traffic from the head-to-head configuration to a normal 4-lane configuration for east- and west-bound traffic on the Interstate 70 Arriba Project. 

This work is expected to take place between 7 a.m. and 7 p.m. Motorists should expect a delay due to traffic pacing during the traffic switch and should watch for workers and drive with caution through the work zone. After this switch takes place, eastbound traffic will be in its final configuration with some daily single-lane closures. Westbound traffic will be in a single westbound lane until mid-November as crews remove centerline delineators and complete final striping.  Motorists will notice single lane closures in both directions for final punch list items until the project concludes in late 2020.


  • Motorists should expect various lane closures.

  • Typical work hours will be Monday through Friday, 7 a.m. to 7 p.m. Weekend and overnight work may occur as needed. 

  • Speeds will be reduced to 65 MPH 


Castle Rock Construction Company of Centennial, Colorado, is the prime contractor on this $44.6 million project. Work is expected to be complete by Fall 2020. Work is weather dependent and subject to change.


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

Project hotline: 719-215-1323

Project email: [email protected]

Project web page:

For information on travel conditions visit, sign up for GovDelivery, or call 511. Updates are also available via Twitter @coloradodot and CDOT’s Facebook page at


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.

  • 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.

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

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

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

  • Be patient!


Safe transportation infrastructure is essential for emergency first responders and freight drivers as Colorado navigates the COVID-19 pandemic. With that in mind, road maintenance and construction continues on CDOT projects with social distancing and other health safety measures to reduce COVID-19 exposure on the worksite. The Colorado Department of Public Health and Environment announced guidelines for construction activities. The public is urged to join the campaign for #DoingMyPartCO by practicing social distancing, wearing face masks, staying at home when possible, and avoiding nonessential travel. With fewer vehicles on the roads, CDOT crews will be able to work more efficiently and safely.  


Last year, CDOT announced its Whole System — Whole Safety initiative to heighten safety awareness. This

initiative takes a systematic statewide approach to safety combining the benefits of CDOT’s programs that

address driving behaviors, our built environment and the organization’s operations. The goal is to improve the safety of Colorado’s transportation network by reducing the rate and severity of crashes and improving the safety of all transportation modes. The program has one simple mission—to get everyone home safely.


CDOT has approximately 3,000 employees located throughout Colorado, and manages more than 23,000

lane miles of highway and 3,429 bridges. CDOT also manages grant partnerships with a range of other

agencies, including metropolitan planning organizations, local governments and airports. It also

administers Bustang, the state-owned and operated interregional express service. Gov. Polis has charged

CDOT to further build on the state’s intermodal mobility options.