Step-stone bridge

Step-Stone Bridge
In a Japanese-style garden
AncestorNone, this is one of the few foundational types, but see also: ford (crossing).
Related None
DescendantClapper bridge, log bridge
CarriesPedestrians
Span rangeHas no spans, but must be spaced to allow sufficient water flow and a comfortable step, or perhaps a reasonable leap
MaterialSelected stone
MovableNo
Design effortLow
Falsework requiredNo
A step-stone bridge is a simple means for a pedestrian to cross a watercourse during periods of low flow while keeping feet and (particularly) footwear dry. This type, along with the log bridge are likely the oldest bridge types. Unlike all other bridges this bridge has no spans. Water is allowed to course between the stones forming the steps. This type of bridge is often seen in gardens in China and Japan. It is one of several principle types found in such gardens. Sometimes one will find these as informal crossings of small streams when hiking, as they are often built by hikers during the drier seasons and are subject to being swept away (or at least disarranged) during periods of high, fast water.

When this type appears in gardens open to the public the step-stones are usually quarried from rough blocks and may be smoothed on their upper surface by a stone mason or topped with a smooth concrete treading surface.

A type of Step-stone bridge located in Taishun Country, Zhejiang province, China is considered to be very important. Its name is "Ding bu" (in English is Step-stone bridge). One of these Dingbus is called "Shishui Dingbu". It is in Shiyang Zhen, Taishun Country, and it has a long history, and it became national protection unit of China in 2006. A dingbu may be seen at this external image.

Enlarge picture
A rough creek crossing

See also

A ford is a place in a watercourse (most commonly a stream or river) that is shallow enough to be crossed by wading, on horseback, or in a wheeled vehicle. The names of many towns and villages are derived from such places, e.g.
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A clapper bridge is an ancient form of bridge found on the moors of Devon (Dartmoor and Exmoor) and in other upland areas of the United Kingdom including Snowdonia and Anglesey.
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A log bridge is a bridge that uses logs that fall naturally or are intentionally felled or placed across streams. The first manmade bridges with significant span were probably intentionally felled trees.
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pedestrian is a person travelling on foot, whether walking or running. In modern times, the term mostly refers to someone walking on a road or footpath, but this was not the case historically.

History

Walking is the primary means of human locomotion.
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Balanced Rock stands in Garden of the Gods park in Colorado Springs, CO]] A rock is a naturally occurring aggregate of minerals and/or mineraloids. The Earth's lithosphere is made of rock. In general rocks are of three types, namely, igneous, sedimentary, and metamorphic.
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Falsework refers to temporary structures used in construction to support spanning or arched structures in order to hold the component in place until its construction is sufficiently advanced to support itself.
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bridge is a structure built to span a gorge, valley, road, railroad track, river, body of water, or any other physical obstacle. Designs of bridges will vary depending on the function of the bridge and the nature of the terrain where the bridge is to be constructed.
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pedestrian is a person travelling on foot, whether walking or running. In modern times, the term mostly refers to someone walking on a road or footpath, but this was not the case historically.

History

Walking is the primary means of human locomotion.
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A watercourse is any flowing body of water. These include rivers, streams, brooks, anabranches et cetera.

See also

  • Waterway

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Footwear consists of garments worn on the feet. It is worn for a variety of reasons, including protection against the environment, hygiene and adornment. Usually, socks and other hosiery are worn between the feet and the footwear, except for sandals and flip flops (thongs).
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A log bridge is a bridge that uses logs that fall naturally or are intentionally felled or placed across streams. The first manmade bridges with significant span were probably intentionally felled trees.
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China (Traditional Chinese:
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The craft of stonemasonry has existed since the dawn of civilization - creating buildings, structures, and sculpture using stone from the earth. These materials have been used to construct many of the long-lasting, ancient monuments, artifacts, cathedrals, and cities in a wide
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Concrete is a construction material that consists of cement (commonly Portland cement) as well as other cementitious materials such as fly ash and slag cement, aggregate (generally a coarse aggregate such as gravel limestone or granite, plus a fine aggregate such as sand or
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Japanese gardens (Kanji 日本庭園, nihon teien), that is, gardens in traditional Japanese style, can be found at private homes, in neighborhood or city parks, at Buddhist temples or Shinto shrines, and at historical landmarks such as old castles.
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A moon bridge is a highly arched pedestrian bridge, which in its wooden form may require the walker to initially climb (as one would a ladder) and also when descending. This type is associated with gardens in China and Japan The moon bridge was originally designed as a means to
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karesansui (枯山水), Japanese rock garden, or Zen garden is an enclosed shallow sandbox containing sand, gravel, rocks, and occasionally grass or other natural elements.
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A zig-zag bridge is a pedestrian bridge composed of short segments, each set at an angle relative to its neighbors and usually with an alternating right and left turn required when traveling across the bridge.
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