About Teesta-V Hydropower Station:
- It is a 510 MW hydropower project located on the Teesta River basin in Gangtok district, Sikkim.
- This run-of-river project has an 88.6-meter high, 176.5-meter-long, concrete gravity dam impounding a regulating reservoir for daily power peaking.
- It has been developed in a single phase. The project construction commenced in 1999 and subsequently entered into commercial operation in 2008.
- The project is developed and owned by the National Hydroelectric Power Corporation (NHPC).
Key Facts about Teesta River:
- It is a trans-Himalayan River flowing through the Indian states of Sikkim and West Bengal and Rangpur in Bangladesh.
- It is a tributary of Brahmaputra River.
- This river forms a boundary between Sikkim and West Bengal.
- Course:
- It rises in the Himalayas near Chunthang in Sikkim (India), flows to the south, cutting a deep gorge through the Siwalik Hills east of Darjiling (in West Bengal, India).
- It turns southeast to run through the Sivok Khola passonto the plains of West Bengal.
- Originally, the river continued southward to empty directly into the upper Padma River (Ganges).
- About 1787, however, the river changed its course to flow eastward, crossing the Rangpur region of Bangladesh to join the Jamuna River (Brahmaputra).
- It has a total length of about 309 kilometers, and it drains an area of about 12,540 square kilometers.
- Major Tributaries:
- Left-bank Tributaries: Lachung Chhu, Chakung Chhu, Dik Chhu, Rani Khola, Rangpo Chhu.
- Right-bank Tributaries: Zemu Chhu, Rangyong Chhu, Rangit River.
Q1: What is a gravity dam?
A gravity dam is a type of dam structure that is primarily designed to resist the force of gravity and hold back water or other materials. It relies on its own weight and mass to counteract the horizontal pressure exerted by the water or other materials it is retaining. Gravity dams are among the oldest and most common types of dams used for various purposes, including water supply, irrigation, flood control, and hydroelectric power generation.
Source: Sikkim landslide damages NHPC power project building
Last updated on June, 2025
→ UPSC Notification 2025 was released on 22nd January 2025.
→ UPSC Prelims Result 2025 is out now for the CSE held on 25 May 2025.
→ UPSC Prelims Question Paper 2025 and Unofficial Prelims Answer Key 2025 are available now.
→ UPSC Calendar 2026 is released on 15th May, 2025.
→ The UPSC Vacancy 2025 were released 1129, out of which 979 were for UPSC CSE and remaining 150 are for UPSC IFoS.
→ UPSC Mains 2025 will be conducted on 22nd August 2025.
→ UPSC Prelims 2026 will be conducted on 24th May, 2026 & UPSC Mains 2026 will be conducted on 21st August 2026.
→ The UPSC Selection Process is of 3 stages-Prelims, Mains and Interview.
→ UPSC Result 2024 is released with latest UPSC Marksheet 2024. Check Now!
→ UPSC Toppers List 2024 is released now. Shakti Dubey is UPSC AIR 1 2024 Topper.
→ Also check Best IAS Coaching in Delhi