Explanation: Dams are essential structures that serve multiple purposes, including water storage, flood control, irrigation, and hydroelectric power generation. In the context of Uttarakhand, the Tehri Dam is a significant project that has been constructed on the Bhagirathi River, a major tributary of the Ganges. The Tehri Dam is one of the largest dams in India and is a crucial component of the state's water and power supply infrastructure.
The Tehri Dam is a multipurpose project that includes a hydroelectric power plant, which generates electricity for the region. The dam's reservoir, known as the Tehri Lake, also serves as a source of water for irrigation and domestic use. The construction of the Tehri Dam was a massive engineering feat and has had a significant impact on the local economy and environment.
It is important to note that while there are many dams in India, not all of them are located in Uttarakhand. For example, the Rihand Dam is located in Uttar Pradesh, the Hirakud Dam is in Odisha, and the Tungabhadra Dam is in Karnataka. These dams, while significant in their respective states, are not relevant to the context of Uttarakhand.
Understanding the location and significance of dams in Uttarakhand is crucial for students studying the geography and infrastructure of the state. The Tehri Dam, being the only dam listed that is actually located in Uttarakhand, is the correct answer to the question. This knowledge is particularly important for those preparing for competitive examinations such as the UPSC Civil Services, Uttarakhand PSC, and other geography-related exams where the geography and infrastructure of Uttarakhand are likely to be tested.