Four Mile - Salina Junction


Anticipated Travel Impacts During Construction:
  • Work will take place between 8 a.m. and 4:30 p.m. - Monday through Friday
  • Traffic Lights in place - 2 minute 45 second red light - 30 second green light
  • There may be delays of up-to 15-minute delays during working hours when equipment is in the road
  • Project Contact - Andrew Barth at 303-441-1032 or via email

Project Background:

Boulder County has completed designs on improvements to the intersection of Four Mile Canyon Drive and Gold Run Road at Salina Junction. The 2013 Flood washed out much of the intersection and collapsed an existing 48” metal culvert that was meant to carry Gold Run across the intersection during storm events.

The repairs will replace the washed out culvert with a larger structure that is better able to carry large storm events; prevent damage to both roadways; and better maintain traffic through the intersection both during and after a major flood. Installing a larger culvert at the site will require widening out the existing Gold Run channel upstream of the intersection and removing some of the rock that is currently constraining flood waters through the site. Work is anticipated to begin in early January 2016 and last through the spring of 2016, weather depending. A project rendering is depicted below: 

Salina Junction Project Rendition

Project Documents:

Construction Contact Information:

  • Andrew Barth - 303-441-1032 or email

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