Ancestor | Step-stone bridge |
---|---|
Related | Log bridge |
Descendant | Arch bridge, trestle bridge |
Carries | footpaths, tracks, roadways |
Span range | Short |
Material | Stone |
Movable | No |
Design effort | Low |
Falsework required | No |
A clapper bridge is an ancient form of bridge found on the moors of the English West Country (Bodmin Moor, Dartmoor and Exmoor) and in other upland areas of the United Kingdom including Snowdonia and Anglesey, Cumbria, Derbyshire, Yorkshire, Lancashire, and in northern Wester Ross and north-west Sutherland in Scotland. [1] [2] It is formed by large flat slabs of stone, often granite or schist. These can be supported on stone piers across rivers, or rest on the banks of streams.
Although often credited with prehistoric origin, most were erected in medieval times, and some in later centuries. [3] They are often situated close to a ford where carts could cross. According to the Dartmoor National Park, the word 'clapper' derives ultimately from an Anglo-Saxon word, cleaca, meaning 'bridging the stepping stones'; [4] the Oxford English Dictionary gives the intermediate Medieval Latin form clapus, claperius, "of Gaulish origin", with an initial meaning of "a pile of stones". [note 1]
A fine example, the Postbridge Clapper Bridge, can be found at Postbridge, on Dartmoor. Its slabs are over 4 metres (13 ft) long, 2 metres (6 ft 7 in) wide and weigh over 8 metric tons (7.9 long tons; 8.8 short tons) each, making the bridge passable to a small cart. It was first recorded in 1380 and was built to facilitate the transportation of Dartmoor tin by pack horses to the stannary town of Tavistock.
Other surviving examples include the Tarr Steps over the River Barle in Exmoor, and Stara Bridge over the River Lynher in east Cornwall.
Some larger clapper bridges, such as at Dartmeet and Bellever, have collapsed – their slabs swept away by floods, or raided for building or wall construction - and have since been rebuilt. However, there are many other smaller examples in existence on Dartmoor and still in use, such as those at Teignhead Farm (close to Grey Wethers stone circles), Scorhill and across the Wallabrook stream.
While the term "clapper bridge" is typically associated with the United Kingdom, other "clapper-style" bridges exist throughout the world. One example is the Anping Bridge in China, being over two kilometres long and one in Louisburgh, County Mayo in Ireland.
Dartmoor is an upland area in southern Devon, South West England. The moorland and surrounding land has been protected by National Park status since 1951. Dartmoor National Park covers 954 km2 (368 sq mi).
The industrial archaeology of Dartmoor covers a number of the industries which have, over the ages, taken place on Dartmoor, and the remaining evidence surrounding them. Currently only three industries are economically significant, yet all three will inevitably leave their own traces on the moor: china clay mining, farming and tourism.
Postbridge is a hamlet in the heart of Dartmoor in the English county of Devon. It lies on the B3212, roughly midway between Princetown and Moretonhampstead.
Exmoor is loosely defined as an area of hilly open moorland in west Somerset and north Devon in South West England. It is named after the River Exe, the source of which is situated in the centre of the area, two miles north-west of Simonsbath. Exmoor is more precisely defined as the area of the former ancient royal hunting forest, also called Exmoor, which was officially surveyed 1815–1818 as 18,810 acres (7,610 ha) in extent. The moor has given its name to a National Park, which includes the Brendon Hills, the East Lyn Valley, the Vale of Porlock and 55 km (34 mi) of the Bristol Channel coast. The total area of the Exmoor National Park is 692.8 km2 (267.5 sq mi), of which 71% is in Somerset and 29% in Devon.
Dulverton is a town and civil parish in west Somerset, England, near the border with Devon. The town had a population of 1,408 at the 2011 Census. The parish includes the hamlets of Battleton and Ashwick which is located approximately 4 miles (6.4 km) north west of Dulverton.
A longhouse or long house is a type of long, proportionately narrow, single-room building for communal dwelling. It has been built in various parts of the world including Asia, Europe, and North America.
Dartmeet is a popular tourist spot in the centre of Dartmoor, Devon, England at grid reference SX672731.
The tin mining industry on Dartmoor, Devon, England, is thought to have originated in pre-Roman times, and continued right through to the 20th century, when the last commercially worked mine closed in November 1930. From the 12th century onwards tin mining was regulated by a stannary parliament which had its own laws.
A footbridge is a bridge designed solely for pedestrians. While the primary meaning for a bridge is a structure which links "two points at a height above the ground", a footbridge can also be a lower structure, such as a boardwalk, that enables pedestrians to cross wet, fragile, or marshy land. Bridges range from stepping stones–possibly the earliest man-made structure to "bridge" water–to elaborate steel structures. Another early bridge would have been simply a fallen tree. In some cases a footbridge can be both functional and artistic.
Dunkery Beacon at the summit of Dunkery Hill is the highest point on Exmoor and in Somerset, England. It is also the highest point in southern England outside of Dartmoor.
Somerset is a rural county in the southwest of England, covering 4,171 square kilometres (1,610 sq mi). It is bounded on the north-west by the Bristol Channel, on the north by Bristol and Gloucestershire, on the north-east by Wiltshire, on the south-east by Dorset, and on the south west and west by Devon. It has broad central plains with several ranges of low hills. The landscape divides into four main geological sections from the Silurian through the Devonian and Carboniferous to the Permian which influence the landscape, together with water-related features.
The River Barle runs from the Chains on northern Exmoor, in Somerset, England to join the River Exe at Exebridge, Devon. The river and the Barle Valley are both designated as biological Sites of Special Scientific Interest.
The Tarr Steps is a clapper bridge across the River Barle in the Exmoor National Park, Somerset, England. They are located in a national nature reserve about 2.5 miles (4 km) south east of Withypool and 4 miles (6 km) north west of Dulverton.
The East Dart River is one of the two main tributaries of the River Dart in Devon, England.
Machrie Moor Stone Circles is the collective name for six stone circles visible on Machrie Moor near the settlement of Machrie on the Isle of Arran, Scotland.
The stone circles in the British Isles and Brittany are a megalithic tradition of monuments consisting of standing stones arranged in rings. These were constructed from 3300 to 900 BCE in Britain, Ireland and Brittany. It has been estimated that around 4,000 of these monuments were originally constructed in this part of north-western Europe during this period. Around 1,300 of them are recorded, the others having been destroyed.
Fingle Bridge is a 17th-century stone arch bridge carrying an unclassified road over the River Teign near Drewsteignton, within Dartmoor National Park in Devon, England. This packhorse bridge has three arches and the two central piers are surrounded by triangular cutwaters extending upwards to form pedestrian refuges, and is a Grade II* listed building.
Stara Bridge is a clapper bridge across the River Lynher in east Cornwall, England, dating to the Late Middle Ages and now scheduled under the Ancient Monuments and Archaeological Areas Act 1979 as a rare surviving example of such bridge types. The surrounding area is known as Starabridge.
Porlock Stone Circle is a stone circle located on Exmoor, near the village of Porlock in the south-western English county of Somerset. The Porlock ring is part of a tradition of stone circle construction that spread throughout much of Britain, Ireland, and Brittany during the Late Neolithic and Early Bronze Age, over a period between 3300 and 900 BCE. The purpose of such monuments is unknown, although archaeologists speculate that the stones represented supernatural entities for the circles' builders.
Withypool Stone Circle, also known as Withypool Hill Stone Circle, is a stone circle located on the Exmoor moorland, near the village of Withypool in the southwestern English county of Somerset. The ring is part of a tradition of stone circle construction that spread throughout much of Britain, Ireland, and Brittany during the Late Neolithic and Early Bronze Age, over a period between 3300 and 900 BCE. The purpose of such monuments is unknown, although archaeologists speculate that the stones represented supernatural entities for the circle's builders.