1

 

1 Holes occur as water seeps into the dam’s base, causing continuous structual deterioration

 

2 Injections of concrete grout prevent the foundations failing, but maintenance stalled when Isis briefly captured the site in 2014

 

3 Sluice gates normally used to relieve water pressure are jammed shut

3

2

Grout

pump

Mosul dam

Water soluble

gypsum

Failing foundations and rising water levels put Mosul dam in danger of collapse

 

Grand Mosque

Flooding could reach depths greater than 45 feet in some parts of Mosul

Areas that could

be affected by

flooding

Mosul

Ruins of

Nineveh

Airport

Source: IWTC, Journal of Earth Sciences

and Geotechnical Engineering

2 km

2 miles

Residents of Mosul have been advised to move at least 3.5 miles away from the river

One million people along the Tigris could be at risk from a 20-metre-high flash flood if the Mosul dam collapses

Badush dam

Intended to be the failsafe in case of a disaster at Mosul dam, the Badush project was abandoned in 1991

Iraq

Samarra

Tikrit

Mosul

Mosul dam

Baghdad

50 km

50 miles

Euphrates

river

Tigris river

3

Sluice gates normally used to relieve water pressure are jammed shut

2

Injections of concrete grout prevent the foundations failing, but maintenance stalled when Isis briefly captured the site in 2014

1

Holes occur as water seeps into the dam’s base, causing continuous structual deterioration

3

2

1

 

At full capacity, the dam holds

11.1bn cubic meters of water

Grout

pump

Mosul dam

Water soluble gypsum

foundation

Levels could soon rise

22m with the spring melt

Current water level

Highway 1

to Baghdad

Road 80

to Kirkuk

Highway 2

to Irbil

Grand Mosque

Farm land

Farm land

Guardian graphic

Source: IWTC, Journal of Earth Sciences and Geotechnical Engineering

Flooding could reach depths greater than 45 feet in some parts of Mosul

Areas that could

be affected by

flooding

2 km

2 miles

River Tigris

Mosul

Ruins of

ancient Nineveh

Airport

University

Failing foundations and rising water levels put Mosul dam in danger of collapse

 

Residents of Mosul have been advised to move at least 3.5 miles away from the river

One million people along the Tigris could be at risk from a 20-metre-high flash flood if the Mosul dam collapses

Badush dam

Intended to be the failsafe in case of a disaster at Mosul dam, the Badush project was abandoned in 1991 due to economic sanctions against Iraq

Iraq

Samarra

Tikrit

Mosul

Mosul dam

Baghdad

50 km

50 miles

Euphrates

river

Tigris river