Image: from Daily Maverick X@dailymaverick
By Open Chronicle News Desk
POLOKWANE, SOUTH AFRICA – The Department of Water and Sanitation (DWS) has issued an urgent public safety alert as heavy rains across Limpopo and Mpumalanga push major dam infrastructure to critical levels. As of January 22, 2026, persistent inflows have caused 14 of the 19 monitored dams in the province to exceed 100% capacity, with several structures operating significantly above their full supply levels.
According to the latest reports, the surge in water levels has led to localized flooding, particularly within the Mopani district and areas surrounding the Kruger National Park. The sheer volume of water has forced the closure of multiple bridges and low-lying crossings, isolating several communities.
Dams Under Extreme Pressure
Data released by the DWS highlights a staggering response to the recent rainfall:
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Nsami Dam: Surged from 70% storage last week to a critical 123% this week, spilling into downstream channels.
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Dap Naude Dam: Recorded extreme catchment response, rising from 109% to 124%.
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Modjadji Dam: Increased from 63% to 105% within a matter of days.
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Severely Overfull: The Klaserie (106.7%), Flag Boshielo (105.6%), Nzhelele, and Nandoni dams have all exceeded 105%, adding significant pressure to the Vhembe and Olifants river systems.
Emergency Measures and Infrastructure Safety
Despite the alarming levels, DWS engineers have assured the public that all major dam walls remain structurally sound. At Tzaneen Dam, where a new spillway is currently under construction, officials confirmed that the temporary reduction in the wall height is actually aiding safety by allowing water to flow over controlled sections.
To manage the immense pressure, the Albasini Dam has actively opened five gates to discharge water at a rate of 35 cubic meters per second. The DWS is utilizing real-time tracking and strategic releases to create “buffer capacity” while attempting to minimize the impact on downstream residents.
Public Safety Warning: Wildlife and Undercurrents
Authorities have emphasized that dams operating above capacity create “unpredictable hazards.” Beyond the risk of structural collapse or flash flooding, officials warned that heavy flows have displaced dangerous aquatic animals. Residents near riverbanks have been told to remain vigilant for crocodiles and hippos that may have been swept into flooded residential areas.
“Community awareness is our strongest defense against tragedy,” stated a DWS representative. The public is urged to avoid all recreational activities near spillways and never attempt to cross flooded roads.