Driveways usually sink because they haven’t been laid properly. They may not have been dug deep enough, or the installer might not have used the right materials. This will need to be corrected at the earliest opportunity, although in extreme cases, the driveway may need to be completly be relaid.
Berriedale
Berriedale is a small estate village on the north eastern coast of Caithness, Scotland, on the A9 road between Helmsdale and Lybster, close to the limit in between Caithness and also Sutherland. It is sheltered from the North Sea. The town has a parish church in the Church of Scotland. Just south of Berriedale, en route to the north, the A9 passes the Berriedale Braes, a steep drop in the landscape (brae is a Scots word for hill, a borrowing of the Scottish Gaelic bràighe). The roadway falls steeply (13% over 1,3 kilometres) to connect a river, prior to increasing once more (13% over 1,3 kilometres), with a number of sharp bends in the roadway-- although several of the hairpin bends and various other close-by slopes have actually been eased in recent years. The impracticality (and also expense) of linking the Berriedale Braes stopped the structure of the Inverness-Wick Far North Line along the eastern coastline of Caithness; instead the train runs inland through the Flow Country. Berriedale lies at the end of the eighth phase of the coastal John o' Groats Route.