River
Muthirapuzha River
One of the three rivers that meet at Munnar, giving the town its name.
Rivers & Dams
Rivers, dams & reservoirs
The water that shapes Idukki: the rivers that rise in its hills and the dams that turned them into power and landmarks.
Rivers and dams directory
Type
Showing 8 of 8 water bodies
River
Periyar River
Kerala's longest river, rising in the Western Ghats and shaping Idukki's dams, forests and plantations.
Rank: Longest river in Kerala
Dam · Cheruthoni
Cheruthoni Dam
A gravity dam that, with the Idukki and Kulamavu dams, impounds the Idukki reservoir.
Dam · Periyar
Idukki Arch Dam
A 169-metre double-curvature arch dam on the Periyar, between the Kuravan and Kurathi hills.
Height: 169 m
Dam
Kulamavu Dam
The third dam of the Idukki reservoir system, closing the reservoir on the Kulamavu side.
Dam
Kundala Dam
A scenic dam near Munnar on the road toward Top Station, set among tea estates.
Dam
Mattupetty Dam
A storage dam near Munnar whose reservoir is a favourite stop for boating and scenery.
Dam · Periyar
Mullaperiyar Dam
A historic masonry dam on the Periyar near Thekkady, completed in 1895 and long a point of inter-state discussion.
Completed: 1895
Water and power in Idukki
Idukki sits at the head of several rivers, and the Periyar, Kerala's longest, runs through the district. Dams on its waters, including the Idukki Arch Dam, Cheruthoni and Kulamavu, make the district central to Kerala's hydroelectric power.
Reservoir levels, shutter operations and visitor access change with the seasons and with official decisions, especially during the monsoon. Please rely on notices from the authorities for current information, and treat the figures here as reference facts.