Product Description
Bridge Over Stream Rolled Canvas Prints
Bridge Over Stream Rolled Canvas Prints
A bridge is a structure built to span physical obstacles without closing the way underneath such as a body of water, valley, or road, for the purpose of providing passage over the obstacle. There are many different designs that each serve a particular purpose and apply to different situations. Designs of bridges vary depending on the function of the bridge, the nature of the terrain where the bridge is constructed and anchored, the material used to make it, and the funds available to build it. The bridge must be constructed so it can easily span the stream during flood stages without causing any backwater effects upstream or increased flow velocity downstream. Also, bridges that are too small for the amount of water flow anticipated will likely be washed away. Bridge abutments must be set back at least 2 feet from the normal edge of the stream to prevent constriction during high flow conditions. A common form of lashing sticks, logs, and deciduous branches together involved the use of long reeds or other harvested fibers woven together to form a huge rope capable of binding and holding together the materials used in early bridges. Most bridges are utilitarian in appearance, but in some cases, the appearance of the bridge can have great importance. Often, this is the case with a large bridge that serves as an entrance to a city, or crosses over a main harbor entrance.
