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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 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.
Over Bridge, also known as Telford's Bridge, is a single span stone arch bridge spanning the canalised West Channel of the River Severn near Gloucester, England. It links Over to Alney Island . Although there was a crossing at Over recorded in the Domesday Book , [ 1 ] this bridge was built by Thomas Telford between 1825 and 1828, to carry ...
Also amphidrome and tidal node. A geographical location where there is little or no tide, i.e. where the tidal amplitude is zero or nearly zero because the height of sea level does not change appreciably over time (meaning there is no high tide or low tide), and around which a tidal crest circulates once per tidal period (approximately every 12 hours). Tidal amplitude increases, though not ...
The Millau Viaduct is a cable-stayed road-bridge that spans the valley of the river Tarn near Millau in southern France. It opened in 2004 and is the tallest vehicular bridge in the world, with one pier's summit at 343 metres (1,125 ft). The viaduct Danyang–Kunshan Grand Bridge in China was the longest bridge in the world as of 2011. [6]
As artillery grew in power, so did the size of the lodgements necessary. In addition, room is required for the troops to form up on the further bank. Formerly, with short-range weapons, a bridgehead was often little more than a screen for the bridge itself, but modern conditions have rendered necessary far greater extensions of bridge defenses. [1]
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.
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 ...