Fish ladders: Number of falls

This tool is an aid for the pre-dimensioning of a fish ladder: it allows to calculate the missing value of the three quantities:

• the total fall ($\mathrm{\Delta }{H}_T$) in m;
• the fall between basins ($\mathrm{\Delta }H$) in m;
• the number of falls ($N$);

as well as the residual fall ($\mathrm{\Delta }{H}_R$) in m.

Formula

$$\mathrm{\Delta }{H}_T=(\mathrm{\Delta }H\ast N)+\mathrm{\Delta }{H}_R$$