Longitudinal bulkheads may limit the amount of flooding and help to preserve the waterplane area.
Amacandelo amade angangenwa manzi inganyina ubungakanani bamanzi agcweleyo ze ancede ukukhusela indawo yenqwelo-moya egqitha ngokungena kwinqanawa edadayo kulungelelwano nendawo aze kuthi xhaxhe kuyo amanzi kwinqanawa.