We finished episode 2 of the A87 - the road from Invergarry on the Great Glen to Uig on Skye via Kyle of Lochalsh (map here and click to redirect) - 5 miles west of Invergarry at the junction with the road to Kinloch Hourn.
The main road straight on from this junction is, in fact, a big diversion of the A87's original route as laid out by the Highland Roads & Bridges Commission in the early 19th century caused by hydro electric developments in the 1950s. Look at the map below (click to enlarge):-
Today, the A87 follows the orange line on the map from Glen Garry over to Bunloyne in Glen Moriston where it joins the A887 from Invermoriston on Loch Ness. But it used to run up Glen Garry as far as Tomdoun (pronounced "Tom-DOWN") where it branched off the road to Kinloch Hourn and went north over the hills to Glen Loyne and then over the next ridge of hills to join the A887 at Cluanie.
The old road disappearing into Loch Loyne approaching from the south. Note the track of the road climbing the hill towards Cluanie on the other side. |
For the purposes of this tour along the A87, I'm going to start with the old road up Glen Garry to Tomdoun and over the hills by the ghost road to Cluanie. Then, in subsequent post(s), we'll come back and follow the present road (orange on the map) via Bunloyne and along the north side of Loch Cluanie.
So, starting in Glen Garry, the caption and message on the back of the J Arthur Dixon postcard below, posted at Tomdoun in 1967, sum the glen up quite well:-
As the caption says, Loch Garry is a hydro-electric reservoir although the natural level of the loch was raised (by a dam at its west end) by only 12 feet which is small compared with some hydro-reservoirs. However, as the road ran very close to the shore of the loch, a lot of it had to be re-routed along a slightly higher line. The postcard shows the old road perilously close to being overlapped by the raised loch. Below, 700 yards past Ardochy House, you can see the raised line of the road diverging from the original line:-
Google Streetview |
And aerial photography shows the original line of the road along the edge of the loch. At the left, you can even see it under the water:-
National Libraries of Scotland |
The National Libraries of Scotland's excellent Georeferenced Map Viewer is great for viewing hydro-electric developments because it allows you to overlay old (pre-hydro) maps over modern aerial imagery. Select Bing Satellite as the background from the drop down menu at the top, then choose a map series to overlay from the dialogue at bottom left (if necessary, open this from the "Choose map layers" link at bottom left). Then use the "Change transparency of overlay" slider at the bottom of that dialogue to reveal the modern aerial photography under the map.
The pre- and post-hydro water levels at the west end of Loch Garry |
Although the hydro scheme didn't raise Loch Garry very much compared with other hydro reservoirs (only 12 feet), it did increase its surface area quite a lot by flooding about 2 miles of low lying flood plain of the River Garry at the loch's west end. The picture below (looking west from the "new" A87 over to Bunloyne) shows the reservoir drained down to almost the loch's natural level. The two levels of road are clearly visible:
Loch Garry drained down to almost its natural level: photo credit Peter Jeffrey |
Replica creel house under construction in Glen Coe with the internal wattle ("creel") lining and turf blocks of the outer walls clearly visible. Photo credit National Trust for Scotland |
A
mile past Inchlaggan and we're at Tomdoun where the old A87 branched
off to the right (north) to cross the hills to Cluanie - that's a
convenient place to break until the next instalment.
The west end of Loch Garry as surveyed in the early 1950s before commencement of the hydro works. OS One Inch map, Sheet 36 from National Libraries of Scotland |