Stevo

Firstly you have:
The Electronic Text Corpus of Sumerian Literature (ETCSL), a project of the University of Oxford.

Another database is:
Cuneiform Digital Library Initiative which is a vast resource
including the Epic of Gilgamesh:-

The Babylonian flood story, found on the eleventh tablet of the Epic of Gilgamesh, tells of the gods' decision to send a flood to destroy the earth. One god, Ea, relays the plan to a man named Utu-napishtim. Utu-napishtim is further instructed to build a boat in order to save himself, his family, and animals of all kinds. Rain descends for six days, after which the water abates and the ship is again on solid ground. Two birds are released but find no resting place. Finally a raven that had been sent out did not return, showing that the waters had receded. Utu-napishtim emerges and later tells this story to Gilgamesh.

Enjoy.