Part of the flood wall in Clontarf is to be lowered to protect the view for motorists.
Work is expected to begin this year to take 30 centimetres off the top of the wall opposite St. Anne's Park.
Following a long running row with residents the council agreed last year to reduce the height of the wall.
However a council report says it can't reduce the height by 30cm for all of the 470 metre section due to the danger of walkers toppling over at the lowest part of the wall.
In order to provide some protection against this, it's proposed that the minimum height of the wall should be 50cm.
The wall was built as part of the €5 million Clontarf cycle path which is due to be competed this month.