Zambezi two largest left-hand tributaries of the Zambezi. The Kafue joins the main river in a quiet deep stream about wide. From this point the northward bend of the Zambezi is checked and the stream continues due east. At the confluence of the Luangwa (15°37' S) it enters Mozambique. The middle Zambezi ends where the river enters Lake Cahora Bassa (also spelled Cabora Bassa). Formerly the site of dangerous rapids known as Kebrabassa, the lake was created in 1974 by the construction of the Cahora Bassa Dam. The lower Zambezi's 650 km from Cahora Bassa to the Indian Ocean is navigable,
Water politics in the Jordan River basin Water quality is variable in the river basin. The three tributaries of the upper Jordan have a low salinity of about 20 ppm. The salinity of water in Lake Tiberias ranges from 240 ppm in the upper end of the lake (marginal for irrigation water), to 350 ppm (too high for sensitive citrus fruits) where it discharges back into the Jordan River. The salt comes from the saline subterranean springs. These springs pass through the beds of ancient seas and then flow into Lake Tiberias, as well as the groundwater sources that feed into the lower Jordan. Downstream of Tiberias,