Water manning (Water Overlay)

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Icon Attribute Unit Function value Description
Waterwizard icon manning.png WATER_MANNING s/(m1/3) Manning Value The Gauckler–Manning coefficient of the construction.

Manning's n (construction)

Constructions have an inherent "roughness", affecting the flow of water across their surface, which is expressed by the Gauckler–Manning coefficient or, in short, Manning's value (n).


  • The default function values are derived from online accessible databases[1] and are readily adjustable by the user.
  • If no constructions are present on a terrain, the WATER_MANNING value of the surface terrain is used.
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The default function values for a number of constructions. The user can easily change these values.

See also


  1. WikiEngineer (2008-2011). Manning Roughness Coefficients. Retrieved from: http://wikiengineer.com/Water-Resources/ManningRoughnessCoefficients