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  2. List of drainage basins by area - Wikipedia

    en.wikipedia.org/wiki/List_of_drainage_basins_by...

    The list of drainage basins by area identifies basins (also known as "catchments" or, in North American usage, "watersheds"), sorted by area, which drain to oceans, mediterranean seas, rivers, lakes and other water bodies. All basins larger than 400,000 km 2 (150,000 sq mi) are included

  3. Municipal castings - Wikipedia

    en.wikipedia.org/wiki/Municipal_castings

    Drainage Grate Municipal Casting. Municipal castings refers to many products, including: access hatches; ballast screens; benches (iron or steel); bollards; cast bases; cast iron hinged hatches, square and rectangular; cast iron riser rings; catch basin inlet; cleanout/monument boxes; construction covers and frames; curb and corner guards; curb openings; detectable warning plates; downspout ...

  4. Watershed delineation - Wikipedia

    en.wikipedia.org/wiki/Watershed_delineation

    Watershed delineation is the process of identifying the boundary of a watershed, also referred to as a catchment, drainage basin, or river basin.It is an important step in many areas of environmental science, engineering, and management, for example to study flooding, aquatic habitat, or water pollution.

  5. Storm drain - Wikipedia

    en.wikipedia.org/wiki/Storm_drain

    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 ...

  6. Drainage basin - Wikipedia

    en.wikipedia.org/wiki/Drainage_basin

    A drainage basin is an area of land in which all flowing surface water converges to a single point, such as a river mouth, or flows into another body of water, such as a lake or ocean. A basin is separated from adjacent basins by a perimeter, the drainage divide, [1] made up of a succession of elevated features, such as ridges and hills.

  7. Hydrologic unit system (United States) - Wikipedia

    en.wikipedia.org/wiki/Hydrologic_unit_system...

    As of 2010 there are six levels in the hierarchy, represented by hydrologic unit codes from 2 to 12 digits long, called regions, subregions, basins, subbasins, watersheds, and subwatersheds. The table below describes the system's hydrologic unit levels and their characteristics, along with example names and codes.

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