Abstract: A set of elements for erecting a transportable dam, the set comprising at least a first inflatable flexible element which, in an inflated state, forms a tube, and a filler element, which is mountable to one end of the inflatable element, whereby, when mounted to the inflatable element, the filler element defines a first end of the tube. The filler element has at least one filler plug opening for filling air and/or liquid into the inflatable element. A coupling arrangement is provided for defining a second end of the tube. The invention further relates to a method of erecting a transportable dam.