Founded by George W. Koss in 1912 in Des Moines, Iowa, Koss Construction Company today is a leading general contractor specializing in highway and airfield construction headquartered in Topeka, Kansas. This one-hundred years of history is the foundation that allows Koss to deliver a wide array of products and services to a multitude of owners with a consistent emphasis on safety, quality, and integrity. The men and women who have joined us know that we are big enough to do what we say, and small enough to manage our every endeavor as though it is our most important.

Koss Construction Company is dedicated to performing all work in a manner that results in quality craftsmanship and safe working procedures and conditions for all employees. Three full-time managers administer training and inspection programs that cover all aspects of job performance on our projects, at the construction and maintenance facility, and in transportation between projects. Koss adheres to all applicable safety regulations as required by the Occupational Safety and Health Act, the Environmental Protection Agency, the Departments of Transportation, as well as other regulating agencies.

Koss Construction produces a variety base course materials that provide the strong foundation needed to ensure long lasting pavements. Employing dedicated portable plants to produce these products guarantees timely delivery of these blended base courses. Paying careful attention to the mixture components and construction requirements, Koss Construction's plant mixed base courses are the supporting layers for our high quality pavements. See the foundation of durable roads here.