Barrages on the Indus (Sindh) River: 17 Major Structures Managing Pakistan's Lifeline

The Indus River (locally "Sindh") has 17 major and medium barrages regulating water for irrigation, flood control, and hydropower across Pakistan.

List (North to South)

1. Tarbela Dam/Barrage (Khyber Pakhtunkhwa) — largest earth-fill dam, 3,478 MW.
2. Ghazi Barotha (barrage component) — 1,450 MW.
3. Attock Barrage (Punjab/KP border).
4. Kalabagh Barrage (KP) — proposed dam site.
5. Mianwali Headworks (Punjab).
6. Chashma Barrage (Punjab) — 184 MW, Chashma-Jhelum Link Canal.
7. Taunsa Barrage (Punjab) — 1.1M cusecs capacity, rehabilitated 2010.
8. Guddu Barrage (Sindh/Punjab border) — 1.2M cusecs, 3 gates added 2019.
9. Sukkur Barrage (Sindh) — largest, 66 gates, 1.5M cusecs, 1932, Lloyd Barrage. Feeds 7 canals.
10. Kotri Barrage (Sindh) — 44 gates, 875,000 cusecs, 1955. Last barrier before delta.
11. Ghulam Muhammad Barrage (Sindh) — also called Kotri Barrage (duplicate entry in some lists).
12. Panjnad Barrage (Punjab) — confluence of 5 Punjab rivers (Chenab, Jhelum, Ravi, Beas, Sutlej) into Indus.
13. Islam Headworks (Punjab).
14. Dargai Barrage (KP) — on Swat River tributary.
15. Khanpur Barrage (KP) — on Haro River.
16. Chakdarra Barrage (KP) — on Swat River.
17. Haripur Barrage (KP) — on Dor River.
18. Thakot Barrage (AJK) — on Indus upstream of Tarbela.

System Function

Divert 170+ MAF (million acre-feet) annually to 18M ha irrigated land—world's largest contiguous irrigation system. Barrages are gated weirs (not storage dams) maintaining upstream water level for canal offtakes.

Challenges

• Sedimentation reduces capacity.
• Climate change alters glacial melt timing.
• Inter-provincial water disputes (1991 Water Apportionment Accord).
• Aging infrastructure (Sukkur 90+ years).

These 17 barrages are the hydraulic backbone of Pakistan's agriculture and food security.