The Dam volume supply figures below will prepopulate based on your Annual average rainfall & Annual average PAN evaporation in step 1.
View the information in a table format
Error: Annual evaporation (mm/year) and
Annual average rainfall (mm/year) has not been entered in the property details section (Step 1).No value for the evaporation losses can be populated below without this figure.
Please note: The dam calculations assume a batter slope of 3:1
The gully dam formula used calculates the natural storage only.
Please refer to the following:
Determining the evaporative loss from a farm dam
Seepage Losses from farm dams