The bridge was completed in 1815, and predates the 1864 elaboration of Dunans House by Kerr into a Franco-Baronial "castle".
The three-arched rubble construction is considered internationally important as it is the only extant bridge of this type.
It stands over 15 metres (49 ft) from the river bed and has been voted one of Scotland's ten best bridges.
Though it is of a kind often constructed by Telford, the three arches, gargoyles and eight hexagonal piers, as well as its sheer height 16 metres (52 ft), make it unique.
The 2023 update indicates: "North face was repointed last year, repairs to the eastern arch commence late 2023.