US 285 Surface Treatment in Antonito

Project Facts

  • Cost: $2.4 million
  • Contractor: Intermountain Slurry Seal Inc.
  • Timeline: August to mid-September 2019
  • Location: on US 285 from Antonito to just south of Alamosa (mile points 6.5 to 27)

Antonito 8-2-19.jpg
US 285 from Antonito to just south of Alamosa

From August through mid-September 2019, crews will apply a protective material to US 285 from Antonito to just south of Alamosa to prevent deterioration (aka, chip seal), and update signs on this stretch of road. (mile points 6.5 to 27). 

Work includes:

  • placing a blended asphalt on the existing pavement;
  • covering it with crushed aggregate;
  • rolling the newly placed chips; 
  • sweeping off any excess chips;
  • placing a thin layer of diluted emulsion on the chips about a week after completing chip seal work to give the road surface a black top. 

This project is part of CDOT's Whole System. Whole Safety. program.

Travel Impacts

  • 6:30 a.m. - 8:30 p.m. Monday - Friday, Aug. 14 - mid-September: Expect up to 15-minute delays and a width restriction for wide loads over 12 feet.

Travelers are urged to:

  • Slow down. Higher speeds can cause loose stones to scatter and damage vehicle paint and windshields.
  • Increase distance between vehicles. Space between you and other vehicles will help reduce damage caused by loose stones.
  • Follow work zone signage. Consider the safety of other motorists and the safety of the work crew when traveling through the project construction zone.
  • Use caution. Bicyclists and motorcyclists should use extreme caution during construction operations.