The answer is both! “K-rail” is simply the California-specific term to describe what the rest of the country refers to as “Jersey barriers.” Both terms refer to the same barrier design.

Why are they called K-rail barriers?

The barriers are also known as a K-rail, a term stipulated in the California Department of Transportation specification for temporary concrete traffic barriers which first started using concrete median barriers in the mid-1940s. Over time, different variants were created.

Who makes K-rail?

Temporary Railing (Type K), also known as K-Rail or Krail, is the State of California Department of Transportation (Caltrans) specification for temporary concrete barrier rail. Or E-Mail us today. Jensen Precast has been manufacturing and renting K-Rail for 23 years.