DERNA, Libya – Two dams that burst in a hurricane-strength storm, unleashing a wall of water that killed thousands in the Libyan port of Derna, had been cracked since 1998, an official said.
Prosecutor general Al-Seddik Al-Sour has announced an investigation into the circumstances leading to the collapse, culminating in the catastrophic flash flood that swept through the city on Sunday.
Like much of Libya’s crumbling infrastructure, the two dams that had been built to hold back water from Derna fell into disrepair during years of neglect, conflict and division in chaos-ridden Libya.
The North African country is currently ruled by two rival administrations that have battled for power since a Nato-backed uprising toppled and killed longtime dictator Moamer Kadhafi in 2011. A 2020 ceasefire has largely held.
On Sept 10, Storm Daniel made landfall in eastern Libya, triggering torrential rain in the hills above Derna.
Abu Mansur dam, 13km from the city, whose reservoir held 22.5 million cubic metres of water, collapsed first.
The deluge then broke Al Bilad, the second dam, which had a capacity of 1.5 million cubic metres and is just a kilometre from the coastal city. The wall of water and debris swept through the normally dry riverbed or wadi that cuts through the city centre.
Both dams were constructed by a Yugoslav company in the 1970s, “not to collect water but to protect Derna from floods”, according to Sour. Before the dams were built, Derna was hit by a series of significant floods from the river in the mid-20th century.
According to the Libyan prosecutor, those responsible for managing dams in Libya had reported cracks in both of them as early as 1998.
Two years later, Libyan authorities hired an Italian engineering firm to assess the damage. It confirmed the cracks and recommended the construction of a third dam to protect the city, said Sour.
In 2007, Kadhafi’s government entrusted repair work to a Turkish company.
But because of payment issues, the company did not commence the work until October 2010, and halted less than five months later after the revolution that led to Kadhafi’s downfall began.
Since then, a budget has been allocated every year to repair the two dams, but none of the successive governments since 2011 has undertaken the work, according to an official.
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