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
P12 road (Zimbabwe) Highway which runs from Lusaka to Chirundu. Here it is called the Siavonga Road. On the Zimbabwean side its begins from a junction with R3/A1 Highway which runs from Harare to Chirundu at Makuti. For those not worried about crossing borders the M15 Highway is the shortest route from Chirundu, Zimbabwe to Kariba via Chirundu, Zambia and Siabonga. It is only 72 km, which is the Chirundu, Zimbabwe to Kariba via Makuti's 144 km. From the Chirundu Border Post to the M15 Highway junction with Zambia's T2 Highway is 19 km, then 53 km to Kariba. (SOURCE MAPS) The Highway