Iran's Water Crisis and Dams: Opinion

The mind boggles when officials take turns in proudly announcing that plans are underway to complete 120 dams across the country, of which 43 "must" be ready by 2022. Of the 172 dams in Iran close to 96 are running out of water.
Due to the systemic decline in rainfall, especially in the central and southern regions, more than half (54%) the dams, except for those in Kermanshah Province, are less than 40% full. 
Each of the 120 incomplete dams need minimum $50 million to be up and running. Given that average annual precipitation (200 millimeters) declined by 50% during the last decade, academia, environmentalists and water experts ask one simple question: Why do officials insist on building more dams when they know very well that there is no water to store.