Main Office
8849 W. Wyoming Avenue
Rathdrum,ID 83858
(208) 765-1144

Sandpoint Office
1000 Baldy Mountain Rd
PO Box 1113
Sandpoint, ID 83864
(208) 263-0538

Idaho Public Works
Contractor License
Unlimited 1-2-3

Idaho Contractor
Registration No. RCE-1593

Montana Contractor
Registration No. 150433

Washington L & I


Not just preserving our environment, but improving it is paramount in the way Interstate performs business.  We are continually looking for projects, processes, and products that improve our environmental stewardship.  At Interstate Concrete and Asphalt we:

  • Ensure that employees and contractors respect environmental responsibilities
  • Proactively address the challenges and opportunities of climate change
  • Optimize the use of energy and resources through efficiency gains and recycling
  • Promote environmentally driven product and process innovation and new business opportunities
  • Are good neighbors in the many communities in which we operate


Product Development

Interstate Concrete & Asphalt is proud to offer ECO-MIX asphalt products, developed with the environment in mind.  The ECO-MIX production process uses new techniques and equipment to produce asphalt at significantly lower temperatures than in the past.  Take a look at our brochure or contact us if you would like more information.

ECO-MIX brochure