Hydrology and Structures
The runoff emerging from surrounding hills drains into this lake. The lake is pear-shaped and is encircled by the Aravalli hills on three sides with a straight gravity stone masonry dam on the eastern side which has a spillway to discharge flood flows during the monsoon season.
Three causeways, one from Pichola Lake, the other from Madar Lake and the third one from Badi Lake lead to the Fatah Sagar Lake. There are three inlet channels, which feed the lake and an overflow section on the eastern side in the Masonry dam of 800 m length. Monsoon rains are the main source of all water to the lake. Initially constructed as an irrigation scheme, it is now the second major source of drinking water to the city of Udaipur and the irrigation supplies have been discontinued. A canal from the Rang Sagar Lake connects to the Fatah Sagar Lake. A gate controlled canal further connects Fatah Sagar Lake with Lake Pichhola.The Northeastern embankment is known by three names viz., the Pal, the Drive, or Connaught Bund (bund means embankment).
During drought conditions, when the rainfall is meager, water storage in the lake is insufficient to meet the needs. To prevent loss of water due to evaporation, cetyl alcohol (hexadecanol) is sprayed over the lake surface.
Read more about this topic: Fateh Sagar Lake
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“The philosopher believes that the value of his philosophy lies in its totality, in its structure: posterity discovers it in the stones with which he built and with which other structures are subsequently built that are frequently better—and so, in the fact that that structure can be demolished and yet still possess value as material.”
—Friedrich Nietzsche (1844–1900)