A road or other way over which the public may pass and repass as of right. Highways include footpaths, bridleways, driftways, carriageways, and cul-de-sacs. Navigable rivers are also highways. A highway is created either under statutory powers or by dedication (express or implied) by a landowner and acceptance (by use) by the public. Once a highway has been created, it does not cease to be a highway by reason of disuse. Obstructing a highway is a public nuisance (see also obstruction), and misuse of the public right to pass and repass over a highway is a trespass against the owner of the subsoil of the highway.