Flood Story

The Sumerian flood story is similar and different from the flood story in The Epic of Gilgamesh.  In the Sumerian version, the gods are deciding to erase everything that is known on Earth, but one god who disagreed with their plan, Enlil, warned a priest, Ziusudra, of the idea.  He was told to build a large ship to keep safe himself and the animals.  As instructed he built the ship and saved himself and all of the animals.  Then Enlil was so happy that he kept alive mankind that he granted him a life that was perfect.  This story is similar to the Gilgamesh flood story because in both story’s, one of the gods told a person to build a boat to save themselves and something along with them from a massive flood.  Also, in both stories the result of the building of the boat was successful and the people on the boat were saved.  On the other hand, one difference in the stories is that in the Gilgamesh version, Uta-napishiti was punished from saving himself and had to live faraway.  In the Sumerian version, after the flood was over, Ziusudra was granted eternal life for saving himself and the animals.  I think that these stories are very similar because their had to be one original story that all the other stories are based on.  So i think that all the flood stories, no matter where it is from, will be similar in some ways.

Source
 http://www.talkorigins.org/faqs/flood-myths.html