Disaster looms as 'Saddam dam' struggles to hold back the Tigris

By Patrick Cockburn in Mosul
Published: 08 August 2007
As world attention focuses on the daily slaughter in Iraq, a devastating disaster is impending in the north of the country, where the wall of a dam holding back the Tigris river north of Mosul city is in danger of imminent collapse.
"It could go at any minute," says a senior aid worker who has knowledge of the struggle by US and Iraqi engineers to save the dam. "The potential for disaster is very great."
If the dam does fail, a wall of water will sweep into Mosul, Iraq's third largest city with a population of 1.7 million, 20 miles to the south. Experts say the flood waters could destroy 70 per cent of Mosul and inflict heavy damage 190 miles downstream along the Tigris.
The dam was built between 1980 and 1984 and has long been known to be in a dangerous condition because of unstable bedrock. "The dam was constructed on a foundation of marls, soluble gypsum, anhydrite, and karstic limestone that are continuously dissolving," said specialists at the US embassy in a statement. "The dissolution creates an increased risk for dam failure."
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