Hirakud Dam is built across the Mahanadi River in Odisha (formerly Orissa). It is one of the world's longest earthen dams and holds immense significance for India's post-independence development.
The Hirakud Dam project is historically significant as it was among the first post-independence 'temples of modern India', a phrase used by PM Jawaharlal Nehru to describe large infrastructure dams and factories that would power India's development.
| Feature | Detail |
|---|---|
| River | Mahanadi |
| State | Odisha |
| Location | Near Sambalpur city |
| Type | Composite dam (Earth, Concrete, Masonry) |
| Length | 25.8 km (about 4.8 km main dam + dykes) — India's longest dam |
| Height | 61 metres |
| Reservoir | Hirakud Reservoir — one of Asia's largest artificial lakes |
| Inaugurated | 1957 by Prime Minister Jawaharlal Nehru |
| Purpose | Flood control, irrigation, and hydroelectric power |
**Hirakud Dam** in Odisha is considered the longest dam in India, with a total length of approximately 25.8 km including dykes and saddle dams.
Top Tourist Places in Lakshadweep
Discover the most massive and beautiful tourist places in Lakshadweep. Learn about Agatti, Bangaram, and Minicoy islands, and the heavy permit rules.
Largest Dam in India — Tallest, Longest & Largest Dams
Tehri Dam (260.5 m) is the tallest dam in India. Hirakud Dam is the longest (4.8 km). Sardar Sarovar has the largest capacity. Bhakra Dam is on the Sutlej River.
Which is the Largest Delta in the World?
Learn about the absolute largest river delta in the world. Discover the massive Sundarbans Delta, formed by the mighty Ganga and Brahmaputra rivers.
Which State has the Largest Forest Cover in India?
Learn which Indian state holds the massive title for the largest forest cover. Discover why Madhya Pradesh dominates and the heavy difference between area and percentage.
What is the Largest Glacier in the World?
Discover the massive Lambert-Fisher Glacier in Antarctica, the absolute largest glacier in the world. Compare it with the Siachen Glacier in India.
Turn this guide into revision flashcards, a practice exam, or an AI-generated podcast — free, no signup required.