The Idukki Arch Dam stands at a height of 168.91 meters, making it one of the highest arch dams in the world.
The dam is constructed in a narrow gorge between the granite hills of Kuravan and Kurathi.
The hydroelectric project utilizes a concrete gravity dam (Cheruthoni) and a saddle dam (Kulamavu) in addition to the primary arch dam.
The reservoir area is surrounded by the Idukki Wildlife Sanctuary, which covers approximately 77 square kilometers.
The dam structure was inaugurated in 1976 and is a significant piece of Kerala's hydroelectric infrastructure.
The Idukki Dam Boating Starting Point provides access to the reservoir created by the Idukki Arch Dam, one of the highest arch dams in Asia. Located between the Kuravan and Kurathi hills, the reservoir spans a vast area within the Periyar River basin. Boating operations are conducted by the District Tourism Promotion Council of Idukki. The dam itself is a double curvature parabolic thin arch dam constructed across the Periyar River. Visitors take motorized boats from this point to view the engineering scale of the dam and the surrounding forest cover. Access to the dam site is restricted and regulated by the Kerala State Electricity Board.
From the boat looking back toward the double curvature arch of the main dam wall.
Carry a valid government-issued photo identity card as it is mandatory for entry.
Plan your visit during post-monsoon months to witness the reservoir at its maximum water levels.
Keep a light jacket or windbreaker as the area near the reservoir can be breezy even on sunny days.
Do not attempt to visit on days when the dam top is closed for high-security reasons; check local status before departing.
Operations are subject to closure during heavy monsoon periods or for security-related site maintenance.
Strictly no photography allowed on the dam top; follow all instructions from security personnel regarding restricted zones.
