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A diagram of a traditional French drain. A French drain [1] (also known by other names including trench drain, blind drain, [1] rubble drain, [1] and rock drain [1]) is a trench filled with gravel or rock, or both, with or without a perforated pipe that redirects surface water and groundwater away from an area.
Subsurface drains, on the other hand, are designed to manage water that seeps into the soil beneath the planting surface. French drains, which are gravel-filled trenches with perforated pipes at the bottom, are the most common type of subsurface drain. Trench drains, which are similar but shallower and wider, are also used in some situations. [4]
Storm drain grate on a street in Warsaw, Poland Storm drain with its pipe visible beneath it due to construction work. A storm drain, storm sewer (United Kingdom, U.S. and Canada), highway drain, [1] surface water drain/sewer (United Kingdom), or stormwater drain (Australia and New Zealand) is infrastructure designed to drain excess rain and ground water from impervious surfaces such as paved ...
The Animas River is the largest tributary in terms of stream flow, but drains a comparatively slim watershed of 1,370 square miles (3,500 km 2). [ 3 ] [ 8 ] In the 21st century, the snowpack in the San Juan Mountains has often been diminished by warming winter temperatures which has led to concerns about the long-term water supply for the San ...
It flows 20 km west of the permanent part of the Lukanga Swamp which fills a circular depression, and which drains through a channel into the Kafue. The area between the swamp and river is flood plain and when that and surrounding areas are inundated in the rainy season, the combined wetland exceeds 6,000 km 2. [5]
About 48.71% of the world's land drains to the Atlantic Ocean. [citation needed] In North America, surface water drains to the Atlantic via the Saint Lawrence River and Great Lakes basins, the Eastern Seaboard of the United States, the Canadian Maritimes, and most of Newfoundland and Labrador.
Installing devices to prevent seawater from backflowing into storm drains [31] Rainwater storage to deal with increased run-off from rainfall. This includes reducing paved areas or changing to water-permeable pavements, adding water-buffering vegetation, adding underground storage tanks, and subsidizing household rain barrels [ 32 ] [ 33 ]
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