In reply to The Watch of Barrisdale:
"I suspect that if Scottish Hydro Electric had remained in public ownership the issue of public access may not have arisen"
The North of Scotland Hydro-Electric Board existed until 1989. Was there vehicular access in the 70s/80s? Personally I suspect not.
There's a similar-ish situation with the road onwards to Rua Reidh lighthouse from Melvaig near Gairloch. Road to the lighthouse was built on estate land, maintained by the lighthouse board, never adopted, but private vehicles have been allowed for quite some time (perhaps always). A few years back the then lighthouse owners (not the estate) erected a locked gate to try to restrict access. They had to take it down as it's up to the estate who uses the road apart from the mandated estate, resident and lighthouse traffic, and in that case the estate are fine with public access.
Post edited at 13:51