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(5055) Surface drainage
The diversion or orderly removal of excess water from the surface of land by means of improved natural channels or constructed drains, supplemented when necessary by shaping and grading of land surfaces to such channels or drains. Surface drainage can be classified into two categories, depending on the topography of the land: - Where ground slopes are flat (slopes less than 2 per cent), surface drainage is required to remove excess water that may cause waterlogging of the surface. - Where ground slopes are steeper (slopes greater than 2 per cent), surface drainage is required principally for erosion control.
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Irrigation
Drainage
Dictionary - Subsurface Drainage Terms
- Subsurface ice, or Interstitial ice
- Drainage area, Drainage basin, River basin, Catchment area, Catchment basin, Catchment, Watershed
- Water parting, Drainage divide, Divide, Watershed divide, Watershed boundary, Topographic divide
- Yield of drainage basin, Annual yield of drainage basin
- Interflow, Subsurface runoff
- Subsurface flow, or Underground flow
- Drainage modulus, or Drainage coefficient
- Subsurface water, Underground water, or Subterranean water
- Subsurface float
- External drainage
- Internal drainage
- Bio-drainage
- Drainage head
- Endogenic drainage
- Allogenic drainage
- Endoreic drainage
- Areic drainage
- Exoreic drainage
- Drainage gallery
- Drainage wells
- Horizontal drainage blanket, Pervious blanket, or Drainage filter
- Cross-drainage work, or Drainage crossing
- Level crossing, or Level drainage device
- Syphon aqueduct, Drainage syphon, Cross drainage culvert
- Drainage overpasses
- Venturi flume drainage crossing
- Drainage culvert, or Supply culvert
- Cross drainage
- Inverted drainage well, or Disposal well
- Irrigation through buried drains, Irrigation-drainage, or Vallenhove process
- Drainage
- Drainage channel
- Artificial drainage
- Lowland drainage
- Agricultural land drainage
- Drainage system
- Closed-drainage area, Blind drainage area, or Non-contributing area
- Drainage benefit
- Degree of drainage
- Field drainage
- Field drainage system
- Land drainage
- Natural drainage system
- Seepage drainage
- Subsurface drainage system
- Open channel drainage
- Surface drainage
- Main drainage system
- Drainage fittings
- Drainage pump sump
- Drainage trench
- Drainage head
- Horizontal subsurface drainage system
- Natural drainage or Natural drainage capacity
- Improved drainage or Artificial drainage
- Random drainage system
- Trenchless drainage
- Open-channel drainage
- Convergent drainage pattern
- Natural drainage systems, or Random drainage systems
- Cutoff drainage system, or Intercepting drainage system
- Herringbone drainage system
- Gridiron drainage system
- Double-main drainage system
- Composite drainage system
- Grouping drainage system
- Zigzag drainage system
- Cross-slope ditch system, or Drainage-type terraces
- Drainage-density
- Drainage pattern
- Superposed drainage, Super imposed drainage or Inherited drainage
- Subsurface drainage, Under drainage, Subsoil drainage, Underground drainage, or Covered drainage
- Relief drainage system
- Convergent drainage system
- Subsurface drain, Under drain, Covered drain, or Buried drain
- Elkington drainage system, Sink-hole drainage
- Rerolle drainage system
- Across-the-slope drainage system, or Keythrope drainage system
- Vertical drainage, or Inverted well
- Mole drainage
- Surface drainage system
- Drainage coefficient, Drainage modulus or Drainage design rate
- Drainage design rainfall
- Drainage efficiency
- Drainage season
- Subsurface run-off
- Angular drainage pattern
- Arterial drainage
- Dendrite drainage
- Drainage boards (also called prefabricated drains)
- Slot drainage
- Radial drainage pattern
- Trellis drainage pattern
- Drainage density
- Vertical subsurface drainage system
- Drainage pumping station, Drainage pumping plant
- Drainage terrace, Drainage control terrace, Interception and diversion terrace, Runoff control terrace, or Channel terrace
- Land drainage
- Design drainage rate
- Soil drainage status
- Excessive drainage
- Imperfect drainage
- Underdrainage
- Singular layout drainage design
- Natural drainage layout
- Composite layout drainage system
- Mole drainage
- Free drainage
- Poor drainage
- Drainage basin
- Subsurface geology
