Nnywane Dam, which is the smallest of the dams with a capacity of 2.3 million cubic metres gained over 10.6% of inflows from January 4 to 10, 2017 to reach 102.6%. Bokaa Dam, which supplies the Greater Gaborone is currently overflowing at 102.6% having gained 10% before the past week’s downpours. The dam contributes 12.8% to the Greater Gaborone area and would supply for 13 months without inflow. Shashe and Ntimbale dams complete the quartet of rivers that have reached spillage point after recording 100.8% and 101.8% as at January 10, 2017.
The country’s biggest dam, Dikgatlhong Dam, which has a capacity of 400 million cubic metres has almost filled up after gaining 7.8% to reach 99.6%. Others such as Letsibogo (65.5%), Lotsane (96.4%), and Thune (46.4%) dams have recorded good inflows within the same period. However, Gaborone Dam, which contributes 38% to the Greater Gaborone, remains way below the 50% capacity. As at January 10 it was 21.6% after gaining 8.1% from 13.5% as at January 4, 2017, which is a reasonable amount considering its size of 141.4 million cubic metre-capacity. According to information from the corporation, at its current level, Gaborone Dam can supply the Greater Gaborone for nine months without inflow.
