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Portable dike and floatation device

A portable dike and floatation device having a lower partition including a water inlet and an upper partition attached to the lower partition. The lower partition is water-fillable via the water inlet. The upper partition includes an air inlet for inflating the upper partition. The lower partition forms a triangular prism having a floor and two sides. The upper partition has two lobes, the lobes cover the two sides, the lobes have a triangular prism shape, and wherein the inner and upper partition forms a square prism shape when the lower partition and the upper partition inflate. At least one support member is positioned within the portable dike and floatation device to provide added rigidity to the portable dike and floatation device.