Yes, photos show graves submerged beneath South Africa's Vaal Dam

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Graves submerged beneath the Vaal Dam.
Graves submerged beneath the Vaal Dam.
Africa Check
  • Several Facebook posts show pictures of graves in the Vaal Dam when the water level is low.
  • While often controversial, it is not unusual for dams to flood occupied or previously occupied land.
  • An estimated 80 million people worldwide have been displaced by large dams.

The Vaal Dam is South Africa's second largest dam by area and touches three provinces – the Free State, Gauteng and Mpumalanga.

But what lies beneath the dam, completed in 1938? Do these photos really show a submerged cemetery on which the dam was built?

Several Facebook posts making the same claim have been flagged as possibly false by the company's fact-checking system. They generally share the same collection of photos and variations on the claim that the dam was built on a cemetery.

Are these claims true? Africa Check investigated.

Graves exist and are occasionally visible

The online branch of the Geological Society of South Africa, or eGSSA, keeps records of grave sites around the country, including those in the photos shared on Facebook.

GPS coordinates on the eGSSA website indicate the graves are located on a roughly three-kilometre-long island in the Vaal Dam.

They are occasionally visible when the water level is low, like in this 2005 photo.

Photos collected by eGSSA show the graves include that of Jacobus Johannes Meyer, who lived between 1861 and 1893. The only other surviving grave is that of Jacobus Frederik Janse van Vuuren, who died in 1928, ten years before the dam was first completed. 

However, the original dam wall was 9.15 metres shorter than it is today. The dam wall was raised in the 1950s and again in the 1980s and the dam's capacity more than doubled.

So was the dam "built on a cemetery" or were the graves only submerged when the dam wall was raised?

Dams regularly submerge human settlements

Many Facebook users reacted to the posts of the graves with shock and concern. But while often controversial, it is not unusual for dams to flood occupied or previously occupied land.

An estimated 80 million people worldwide have been displaced by large dams, according to the Internal Displacement Monitoring Centre, part of the Norwegian Refugee Council but based in Geneva, Switzerland.

Photos show graves when water levels are low

We were unable to locate the exact location and elevation of the graves, or to determine exactly when the photos were taken, which makes it difficult to determine when the graves were submerged.

Some of the flagged Facebook posts suggest that the photos "were taken in 2016 when the water level was extremely low". But other posts imply the photos are more recent.

The dam was at only 26.3% capacity on 6 November 2016, just two days after the timestamp on most of the eGSSA photos. Photos posted on Facebook in early November 2020 would have been taken when the dam was at around 30% capacity.

The original operating capacity of the dam was roughly 38% of its 2020 full supply capacity. So it is possible that the waters of the original dam would have covered the graves.

We can be sure the graves pictured in the Facebook post are submerged beneath the Vaal Dam and have been revealed by low water levels many times.

It is difficult to say for certain whether the graves were submerged by the original 1938 dam. But it is likely.

This report was written by Africa Check, a non-partisan fact-checking organisation. View the original piece on its website

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