Clachan Bridge
Encyclopedia
The Clachan Bridge is a simple, single-arched, hump-backed masonry
Masonry
Masonry is the building of structures from individual units laid in and bound together by mortar; the term masonry can also refer to the units themselves. The common materials of masonry construction are brick, stone, marble, granite, travertine, limestone; concrete block, glass block, stucco, and...

 bridge
Bridge
A bridge is a structure built to span physical obstacles such as a body of water, valley, or road, for the purpose of providing passage over the obstacle...

 spanning the Clachan Sound, 13 kilometres (8.1 mi) miles southwest of Oban
Oban
Oban Oban Oban ( is a resort town within the Argyll and Bute council area of Scotland. It has a total resident population of 8,120. Despite its small size, it is the largest town between Helensburgh and Fort William and during the tourist season the town can be crowded by up to 25,000 people. Oban...

 in Argyll
Argyll
Argyll , archaically Argyle , is a region of western Scotland corresponding with most of the part of ancient Dál Riata that was located on the island of Great Britain, and in a historical context can be used to mean the entire western coast between the Mull of Kintyre and Cape Wrath...

, Scotland.

The bridge links the west coast of the Scottish mainland with the island
Island
An island or isle is any piece of sub-continental land that is surrounded by water. Very small islands such as emergent land features on atolls can be called islets, cays or keys. An island in a river or lake may be called an eyot , or holm...

 of Seil
Seil
One of the Slate Islands, Seil is a small island on the east side of the Firth of Lorn, southwest of Oban, in Scotland.Seil has been linked to the Scottish mainland since 1792 when the Clachan Bridge was built by engineer Robert Mylne...

. Originally designed by Thomas Telford
Thomas Telford
Thomas Telford FRS, FRSE was a Scottish civil engineer, architect and stonemason, and a noted road, bridge and canal builder.-Early career:...

, and built between 1792 and 1793 by engineer
Engineer
An engineer is a professional practitioner of engineering, concerned with applying scientific knowledge, mathematics and ingenuity to develop solutions for technical problems. Engineers design materials, structures, machines and systems while considering the limitations imposed by practicality,...

 Robert Mylne
Robert Mylne
Robert Mylne was a Scottish architect and civil engineer, particularly remembered for his design for Blackfriars Bridge in London. Born and raised in Edinburgh, he travelled to Europe as a young man, studying architecture in Rome under Piranesi...

, the bridge became known as "The Bridge over the Atlantic". It was designed with a high arch, of roughly 22 metres (72.2 ft) span and about 12 metres (39.4 ft) above the bed of the channel, to allow the passage of vessels
Ship
Since the end of the age of sail a ship has been any large buoyant marine vessel. Ships are generally distinguished from boats based on size and cargo or passenger capacity. Ships are used on lakes, seas, and rivers for a variety of activities, such as the transport of people or goods, fishing,...

 of up to 40 tonnes (39.4 LT) at high tide.

The bridge is still in use today, forming part of the B844 road, and is in the care of Historic Scotland
Historic Scotland
Historic Scotland is an executive agency of the Scottish Government, responsible for historic monuments in Scotland.-Role:As its website states:...

.

Wildlife

The south wall of the bridge has been colonised by Fairy Foxglove (Erinus alpinus).

Occasionally whales have become trapped in the narrow Clachan Sound. In 1835 a whale measuring 24 metres (78.7 ft) with a lower jaw of 7 metres (23 ft) was stranded having become trapped in shallow water and unable to reverse out. In 1837, 192 pilot whales were caught in a similar fashion, the largest being 8 metres (26.2 ft) long.
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