In a average rainfall year it is expected the dam could fill in 3-6 months.
Under normal operating conditions the dam will could fill 3-4 times a year.
Coffer Dam
The Coffer Dam diverts the river through the Diversion Conduit so work can be carried out on the dry river bed.
The 5 metre Coffer Dam has an impervious core and is covered in 4 tonne boulders.
