Qualla: Lagdo Reservoir

Lagdo Reservoir: Introduction

Tue, 24 Mar 2026 00:00:00 GMT

Photo credit CIA cropped by Dr. Blofeld, Public domain. In 2012, when operators opened the gates of the Lagdo Dam in northern Cameroon, the water that surged down the Benue River did not stop at the border. It flooded Adamawa State in Nigeria, killed more than ten people, submerged over 10,000 homes for two weeks, drowned more than 10,000 hectares of farmland, and sent crocodiles swimming through the streets of Makurdi, hundreds of kilometres downstream. This was not the first time. It would not be the last. The Lagdo Reservoir -- 586 square kilometres of impounded water sitting 50 kilometres south of the city of Garoua -- is among the most consequential and contentious pieces of infrastructure in West Africa. Built to power Cameroon's north, it has become a recurring source of devastation for its neighbour.

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Image: CIA cropped by Dr. Blofeld | Public domain

Lagdo Reservoir: Chinese Engineers, Cameroonian Ambitions

Tue, 24 Mar 2026 00:00:00 GMT

Photo credit Nasa, Public domain. Construction began in August 1977 and finished in July 1982. The China International Water & Electric Corporation managed the project, deploying Chinese engineers alongside Cameroonian labourers to build a dam 308 metres long, 40 metres high, and 9 metres thick across the Benue R...

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Image: Nasa | Public domain

Lagdo Reservoir: The Dam That Was Never Built

Tue, 24 Mar 2026 00:00:00 GMT

Photo credit Jfisherpccam, CC BY-SA 3.0. Both countries understood the risk from the beginning. The original agreement was straightforward: Cameroon would build the Lagdo Dam, and Nigeria would construct the Dasin Hausa Dam downstream to regulate the flow and buffer against sudden releases. The Dasin Hausa Dam was also ...

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Image: Jfisherpccam | CC BY-SA 3.0

Lagdo Reservoir: Crocodiles in the Streets

Tue, 24 Mar 2026 00:00:00 GMT

Photo credit Jfisherpccam, CC BY-SA 3.0. The floods come with grim regularity. In September 2022, operators began releasing water to protect the dam's installations, and the downstream consequences were severe: 25 people died in Adamawa State alone, farmland was submerged across 13 Nigerian states, and communities along...

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Image: Jfisherpccam | CC BY-SA 3.0

Lagdo Reservoir: Warning Systems and Unfulfilled Promises

Tue, 24 Mar 2026 00:00:00 GMT

Photo credit Jfisherpccam, CC BY-SA 3.0. In the absence of a structural solution, Nigeria has turned to mitigation. The Nigeria Hydrological Services Agency monitors dam releases and issues alerts. The National Emergency Management Agency coordinates evacuations and distributes relief. In 2024, the federal government ap...

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Image: Jfisherpccam | CC BY-SA 3.0