Shashe River Shashe is a sand filled channel, with extensive alluvial aquifers in the river channel and below the alluvial plains. These supply water for a number of irrigation schemes including Sibasa and Shashi. More than two million years ago, the Upper Zambezi River used to flow south through what is now the Makgadikgadi Pan (presently a vast seasonal wetland) to the Shashe River and thence the Limpopo River. There is a road bridge and a rail bridge south of Francistown. The lower Shashe River forms the border between Botswana and Zimbabwe and is unbridged. However, at Tuli, both sides of the
Luena River, Zambia km wide at its mouth. In the dry season, vehicle tracks cross the Luena/Ndandu floodplain between north and south, allowing a direct route between Mongu and Lukulu and North-Western Province, Zambia. In the wet season the floodplain is impassable and vehicles have to travel west towards Kaoma, then north-west on the Kaoma-Lukulu road. At the height of the flood this road also becomes impassable across the floodplain, and there is no practical alternative. Luena River, Zambia The Luena River of Zambia's Western Province rises just west of the Kafue National Park and flows west through Kaoma to become a tributary