US 6 & US 385 Bridge Replacements

About the Project

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 The outdated bridges that will be replaced are located on US 6 and US 385, near Holyoke, in Phillips County, 13 miles west of the Colorado-Nebraska state line.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

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.

Project Benefits

• Updated structures will have a lifespan of up to 100 years, minimizing the need for frequent maintenance and repairs
• Replacing aging bridges will enhance safety for Colorado’s traveling public
• Addresses challenges posed by deteriorating infrastructure, including bridges that may no longer meet modern safety standards

 Work this Week & Lane Closures on US 6 & US 385

Project Facts

• Construction Cost: $20 Million
• Contractor: WW Clyde
• Timeline: March 2025 to October 2026
• Location: US 6 and US 385
  • Nearest Town/City: Holyoke
  • Mile Point(s): 
    • MP 453, 454 and 455 on US 6
    • MP 291 and 279 on US 385
  • County: Phillips