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A low-water crossing (also known as an Irish bridge or Irish Crossing, causeway in Australia, low-level crossing or low-water bridge) is a low-elevation roadway traversing over a waterbody that stays dry above the water when the flow is low, but is designed to get submerged under high-flow conditions such as floods.
Crossing the Red River near Granite, Oklahoma in 1921 Crossing the Milkhouse ford through Rock Creek in 1960 A ford next to a bridge that can only support 1.5 tonnes in Aufseß, Germany. A ford is a shallow place with good footing where a river or stream may be crossed by wading, on horseback, or inside a vehicle getting its wheels wet. [1]
A river crossing is a means to get from one river bank to the other and may refer to: A ford (crossing) A bridge; A tunnel; Any type of ferry. A cable ferry; A reaction ferry; A water taxi; an overhead line crossing
The lowest bridging point (or lowest crossing point) is the location on a river which is crossed by a bridge at its closest point to the sea. [1]Historically—that is, before the development of engineering technology that allowed the construction of tunnels and high-level road bridges—the lowest bridging point of a river was frequently the point at which an important town or city grew up ...
Some varieties of flumes are used in measuring water flow of a larger channel. When used to measure the flow of water in open channels, a flume is defined as a specially shaped, fixed hydraulic structure that under free-flow conditions forces flow to accelerate in such a manner that the flow rate through the flume can be characterized by a level-to-flow relationship as applied to a single head ...
On canals, one solution to the problem of getting the horse to the other side was the roving bridge or turnover bridge, where the horse ascended the ramp on one side, crossed the bridge, descended a circular ramp on the other side of the river but the same side of the bridge, and then passed through the bridge hole to continue on its way.
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Looming of the Canadian coast as seen from Rochester, New York, on April 16, 1871. Looming is the most noticeable and most often observed of these refraction phenomena. It is an abnormally large refraction of the object that increases the apparent elevation of the distant objects and sometimes allows an observer to see objects that are located below the horizon under normal conditions.