கல்லணை:
Kallanai Dam is one of the oldest irrigation dams in the world built around 2000 years ago. It was built across the river Cauvery by the Chola King, Karikal Valavan.
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The main purpose of building Kallanai was to divert the Cauvery water for
irrigation in the Tanjavur delta. Kallanai has a strong foundation and solid
structure. Due to its stubbornness it is still in excellent condition and is
used as a major irrigation dam in Tamilnadu.
Kallanai has become
model for many modern day dam constructions due to its strong engineering
characters. Due to its engineering marvelous Sir Arthu Cotton studied this dam
extensively before constructing the Kollidam Dam across the river Coloron a
tributary of Cauvery.
