Plank bridge, spelled /plæŋk brɪdʒ/, is a type of bridge made of wooden planks placed over a support structure. The term "plank" refers to the long, thin pieces of wood used to construct the bridge, while "bridge" represents the structure that spans a gap or obstacle. The spelling of "plank" is derived from the Old English "planc," meaning a flat, broad piece of wood. The spelling of "bridge" comes from the Middle English "brigge," which itself was derived from the Old English "brycg."
A plank bridge refers to a type of bridge constructed using wooden planks or boards that are arranged side by side to create a passageway over a gap or obstacle. It is a simplistic yet effective solution to connect two separate points, allowing individuals or vehicles to traverse from one side to another.
Typically made of sturdy timber materials such as oak, pine, or ash, plank bridges are a common sight in both rural and urban areas. The planks are laid parallel to each other and supported by a framework of beams or pillars at regular intervals to ensure stability. The planks may be secured in place through various means, such as nails, bolts, or screws, depending on the bridge's design and intended usage.
Plank bridges are often employed in situations where a temporary or portable crossing solution is needed, such as in disaster-stricken areas, military expeditions, or construction sites. They can also be found in more permanent structures, serving as pedestrian walkways, small vehicular bridges, or in recreational settings like garden bridges or nature trails.
The simplicity of construction and versatility of plank bridges make them a practical choice for many applications. Additionally, their wooden structure can blend harmoniously into natural surroundings, providing an aesthetically pleasing addition to the landscape. However, it is worth noting that regular maintenance is required to ensure the planks remain in good condition and the bridge remains safe for use.
The word "plank" originated from the Middle English "planke" or "plank", which in turn comes from the Old North French "planke" or "planch", meaning "board" or "plank of wood". This term was borrowed from Old Norse "planki", further tracing back to Proto-Germanic "*plankiz".
The term "bridge" comes from the Old English "brycg", which shares common roots with Old Norse "bryggja" and Old High German "brugga". These words all relate to a structure built to cross over an obstacle, such as water or a gorge.
When these two words are combined, "plank bridge" refers to a type of bridge constructed using planks of wood. This name essentially denotes a bridge composed of wooden planks as a primary building material.