US 6 and US 385 Bridge Replacements in Phillips County begins March 3

Travel Advisory

Feb. 12, 2025 - Northeastern Colorado - Five bridges to be replaced; temporary structures in place for construction

Phillips County – The Colorado Department of Transportation and contracting partner, WW Clyde, will begin replacing five bridge structures located on US 6 and US 385 starting March 3.

The anticipated completion date of the project is October 2026.

The outdated bridges that will be replaced are located on US 6 and US 385, near Holyoke, in Phillips County, 13 miles west of the Colorado-Nebraska state line.

Bridge structures that will be replaced in 2025:

  • On US 6, east of County Road 37, Mile Point 453
  • On US 385, south of Colorado Highway 23, MP 279
  • On US 385, south of CR 4, MP 291

Bridge structures that will be replaced in 2026:

  • On US 6, west of CR 41, MP 454
  • On US 6 west of CR 43, MP 455

The updated structures will have a lifespan of up to 100 years which will minimize the need for frequent maintenance and repairs. By replacing aging bridges, this project will enhance safety for Colorado’s traveling public and address the challenges posed by deteriorating infrastructure, including bridges that may no longer meet modern safety standards.

To maintain traffic flow during construction, shoo-fly detours will be built at each replacement site, allowing motorists to bypass active work zones. The detours will operate 24/7 and feature a two-lane traffic flow, except for structure A-27-AA on US 385 near MP 291. At this location, traffic will be reduced to a single lane with alternating travel guided by a traffic signal.

“Investing in resilient infrastructure is critical to ensuring safe and efficient travel for all motorists in Colorado, reducing long-term maintenance costs and improving overall roadway performance,” said CDOT Regional Transportation Director Heather Paddock.

Travel Impacts

  • Daytime work hours range from 6:30 a.m. to 7 p.m., Monday through Friday
  • There will be a speed reduction of 25 MPH through the construction zone
  • Shoo-fly detours will be constructed at each structure location during construction Flaggers will be in place to guide traffic.
  • A 12-foot width restriction will be in place
  • Construction vehicles will be entering and exiting the work zones

*The work schedule is weather-dependent and subject to change.

Project Contact Information

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

Know Before You Go

Travelers are urged to “know before you go.” Gather information about weather forecasts and 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.
  • Be especially alert at night while driving in work zones.
  • 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 patient!

Download the COtrip App!

The new free COtrip Planner mobile app was designed to meet the growing trend of information on mobile and tablet devices for the traveling public. The COtrip Planner app provides statewide, real-time traffic information, and works on mobile devices that operate on the iOS and Android platforms. Visit the Google Play Store (Android devices) or the Apple Store (iOS devices) to download!