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Fort Augustus - Bernera Military Road, Creagan Mhartainn Bridge
Road Bridge (Period Unassigned)
Site Name Fort Augustus - Bernera Military Road, Creagan Mhartainn Bridge
Classification Road Bridge (Period Unassigned)
Alternative Name(s) Achlain
Canmore ID 143134
Site Number NH21SE 13.03
NGR NH 28474 12064
Datum OSGB36 - NGR
Permalink http://canmore.org.uk/site/143134
- Council Highland
- Parish Urquhart And Glenmoriston
- Former Region Highland
- Former District Inverness
- Former County Inverness-shire
NH21SE 13.03 28474 12064
Location formerly cited as NH 2848 1206.
This bridge over a burn heading up into the Creagan Mhartainn is of military construction. It is 4.1m wide with a span of 1.8m. The arch ring is complete, although upper stonework is starting to disintegrate.
Visited by OS April 1979.
M Logie (Highland Council) 1997; NMRS MS 1007/6.
(Location indicated on attached map as NH 2812 1216 to NH c. 2860 1202). Length of road scheduled as 'Fort Augustus-Bernera military road, 570m SE of Achlain... a stretch of military road, including two bridges [NH21SE 13.03 and NH21SE 13.04]'.
Information from Historic Scotland, scheduling document dated 9 March 2007.
Field Visit (October 2009 - November 2009)
The following features were recorded during a landscape management survey of the 18th-century military road network as described above.
NH 2924 1160 Inverwick Badly degraded and collapsed early stone culvert. IRS010
NH 2916 1166 Inverwick Early square stone culvert, still in use. IRS011
NH 3643 0978 Inchnacardoch Early square stone culvert. Difficult to access but still functioning. IRS013
NH 3603 0981 Inchnacardoch Fine early single-spanned bridge, still in use. IRS035
NH 3641 0970 Inchnacardoch A bank/dyke loops away from the modern track for a short distance over a slight rise to the N. This route might pre-date a later realignment made to smooth out the gradient. IRS039.
NH 3056 1123 Inverwick An early stone culvert appears to have been replaced by a modern plastic pipe at a higher level. IRS059
NH 3027 1125 Inverwick Probably early stone culvert. IRS064
NH 3011 1126 Inverwick Modern ford taking water from abandoned early stone culvert. IRS068
NH 2898 1179 Inverwick Oblique-angled early stone culvert. Barely functioning. IRS081
NH 2881 1199 Inverwick Presently functioning as a small ford, the water levels on either side of the track suggest there is an early blocked culvert at this point. IRS082
NH 2828 1207 Inverwick The terrain indicates there should be a drainage feature at this point. The generally good condition of the road in this area suggests that evidence for it is likely to still exist. IRS086
Archive: FCS, Inverness and RCAHMS
Funder: Forestry Commission Scotland
Colin Shepherd
Conservation (December 2012)
AOC Archaeology Group was commissioned by Forestry Commission Scotland to undertake a Structural Costed Conservation Plan for the Achlain Bridges, Fort Augustus.
Laser scanning of the three bridges was also undertaken at this time.
Excavation (9 July 2012 - 11 December 2012)
The results of a programme of recording and excavation in advance of conservation of three military bridges located by Achlain in Invermoriston during the second half of 2012. One small trench was excavated on Bridge 009 to identify a possible structural weakness of the bridge at the request of the conservation architect. On Bridge 008, the entire bridge arch and surrounding surface was excavated and a single small trench was excavated at the centre of the arch on Bridge 007, prior to conservation. The excavation allowed for recording of the bridges prior to any changes made by conservation work to the structures.
Information from OASIS ID - rosscrom1-144445 (M Peteranna) 2012
