31-1-1
Highway defined.
31-1-2
Bridges and culverts part of highway.
31-1-3
Existing highways--Continuation as established.
31-1-4
Classification of highways of state.
31-1-5
Administrative systems of highways--Classification.
31-1-6
Federal aid systems--Classification.
31-1-7
Coexistence of administrative and federal aid systems.