In the weeks since the accident occurred, the oil slick has periodically drifted North-East toward the Mississippi delta and reached the Chandeleur Islands.

The water depth reduced due to deposition, the water flow velocity upon the alluvial sector increased obviously and at the front of the delta exists currents around the sand bar.

Secondly, the Yamen waterway can be exploited to build central and special- purpose ports for the west part of the delta area.