a portable levee system includes a bag having a preselected geometric shape . the bag is continuous in that it has a length at least equal to its width , and is preferably many times as long . a top portion of the bag is open for receiving fill material . a preferred geometric shape is a trapezoid . the bag is removably mounted to a dispenser and the dispenser dispenses the bag from a rear portion of the dispenser . a preferred dispenser is towed behind a tractor or truck and the bag is filled within the dispenser and deposited onto the ground . a method of providing a portable levee is taught wherein a levee is created in a fraction of the time required to build an equivalently - sized levee utilizing current emergency levee construction systems .