The NHS is a network of highways that are identified as being most important for the economy, mobility and defense of the nation. The highway is maintained by the Indiana Department of Transportation (INDOT) like all other state roads in the state.
The National Highway System (NHS) is a network of highways deemed crucial for economic activity, mobility, and national defense. The highway is managed by the Indiana Department of Transportation (INDOT), similar to all other state roads within the state.