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

About Us

Interstate Concrete & Asphalt was started in Coeur d'Alene, Idaho in 1986. Interstate expanded into Sandpoint, Idaho in 1987 and into Newport and Elk, Washington in the early 90's.

Interstate specializes in Aggregates, Ready-Mixed Concrete, Asphalt, Paving, and Road Construction.

Our company currently operates four fixed asphalt plant locations, one portable asphalt plant, four readymix batch plants, and multiple gravel pits.  We operate in the five northern counties of Idaho and two northeastern counties of Washington.

The company mission statement is

"We are creating a team of highly skilled people workly safely to build long-term relationships with our customers and communities.  Integrity, superior quality and exceptional service will continue to be the foundation of our future."

Interstate was acquired by Oldcastle Materials & CRH plc of Dublin, Ireland in 1997. The companies continue to be managed locally and are the industry leaders in their communities. Being part of a larger organization allows Interstate to offer more resources for the benefit of the customer.