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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.
Fords may be impassable during high water. A low-water crossing is a low bridge that allows crossing over a river or stream when water is low but may be treated as a ford when the river is high and water covers the crossing. The word ford is both a noun (describing the water crossing itself) and a verb (describing the act of crossing a ford).
Low water crossing, a non-moving bridge that is sometimes submerged; Moveable bridges for a list of other moveable bridge types; Table bridge, a similar bridge that moves upward; Underwater bridge, a non-moving military bridge that is always submerged
If stream flow exceeds the capacity of the passage through the crossing or it is plugged by debris the crossing may be overtopped or the stream diverted down the road. This may result in substantial erosion as flood water cuts a gully on the side of road. Diversion occurs when a road slopes downward from a crossing and the height of the road ...
A floodway is a flood plain crossing for a road, built at or close to the natural ground level. [1] It is similar to a causeway, but crosses a shallow depression that is subject to flooding, rather than a waterway or tidal water. [2] They are designed to be submerged under water, but withstand such conditions.
Low water levels in the Mississippi River have been approaching a historic low for the last week. At least eight barges have run aground due to the drop in water level, the AP reported.
A flood plain crossing built at or close to the natural ground level, [3] designed to be submerged under water, but withstand such conditions—typically used when flood frequency or time span is minimal, traffic volumes are low, and the cost of a bridge is uneconomic. [4] Flyover. See overpass. Footpath or footway. See sidewalk. Fore Street ...
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