Highways not maintainable There are some, but very few, highways for which nobody has any liability for maintenance. This would occur in the rare circumstance where a highway was dedicated by a landowner, but never adopted nor the maintenance responsibilities specified. In that scenario, it is a common misconception that the constructor or dedicator of a highway will become the person who is liable for its maintenance and repair. This is incorrect. If a way dedicated as a highway, and if not adopted, then it will be maintainable by no one as there is no obligation on the dedicator to maintain/repair it. All other highways are maintainable either at the public expense, by a private firm or by one or more private individuals who (in most cases) turn out to be frontagers or owners of the subsoil. Highways privately maintainable The most common form of privately maintainable highway is one that has been recently built under section 38 of the Highways Act 1980 (HiA 1980) agreement. Until a new adopted highway has been open