Isn’t that usage referred to by sevenlayermuddle an Americanism ? oddly, they refer to (entire) Universities as “schools” on occasion.
Just as Burakkucat says, I did indeed post a pic of a lorry hanging off the road near there some while back. It is a high quality road, frightening to the uninitiated. I used to enjoy it very much indeed when conditions were good.
Apart from that one section, where there is the old Mol coast road (from Norse - a stony beach) this is the one and only road of the Island and when it gets cut the island is cut in two. It is culturally a bit like that, with people talking about “An Ceann a-Tuath” and its literal exact equivalent “The North End”, the latter being the made up of the west side area around Port nan Long, plus Port Rìgh and the trì corragan an Eilein.