Sea of Marmara about 22 parts per thousand, which is slightly greater than that of the Black Sea, but only about two-thirds that of most oceans. The water is much more saline at the sea bottom, averaging salinities of around 38 parts per thousand, similar to that of the Mediterranean Sea. This high-density saline water, like that of the Black Sea, does not migrate to the surface. Water from the Susurluk, Biga (Granicus) and Gonen Rivers also reduces the salinity of the sea, though with less influence than on the Black Sea. With little land in Thrace draining southward, almost all of these
Red Sea–Dead Sea Water Conveyance Valley in Jordan. The water would then flow down gravitationally through multiple pipelines to the area of the Dead Sea, followed by a drop through a penstock to the level of the Dead Sea near its shore, and then an open canal to the Sea itself, which lies about 420 meters below sea level. The project would utilize about 225 km of pipelines for seawater and brine, parallel to the Arabah Valley in Jordan. The project would also have about 178 km of freshwater pipelines to the Amman area. It also would include several water desalination plants and at least