For over 35 years, Interstate Concrete & Asphalt has served the Inland NW region. We are The Preferred Source of quality sand, rock, landscape products, ready mix concrete, asphalt, paving and construction. Whether your next project is large or small, you can count on us for quality products and excellent service.


About Us

When the name of Interstate Concrete & Asphalt comes to mind, we strive for a particular impression: Excellence. It is at the core of all that we do for our customers and our employees. In our service to Eastern Washington and Northern Idaho, we’ve grown into one of the largest suppliers of asphalt, aggregates, ready mixed concrete, paving, and construction services in the region. The depth of each of our offerings means that we’re uniquely aligned to service projects that span everything from subdivisions to multi-million-dollar highways to large commercial installations. Whatever your needs, we’ve got you covered!

Learn More


We, at Interstate Concrete & Asphalt, have a deep appreciation for all those that have enabled us to thrive. As a Preferred Source for your products and projects, we’ve assembled several resources to help make your decisions easier. You’ll find material calculators, diagrams, credit applications, and whitepapers that are all intended to get you moving the right direction. Take a look!

View Resources

We have locations throughout Eastern Washington and Northern Idaho to conveniently serve you. Do you need a delivery or help to design and build a project? We can help! Contact us today.