Plans to protect over a thousand homes from flooding in Sandymount in Dublin are unlikely to be in place for several years.
Work on the flood defence project was due to begin last year after being recommended 20 years ago.
However, Dublin city council is to go back to the drawing board on the plans for the Sandymount coastline, that will see work carried out from Merrion Gates to Seán Moore Park.
It follows consultation with the OPW. The new assessment will take increased wave heights and sea level rises in recent years into account.
The work is not expected to begin before 2030 and is unlikely to be in place before 2032 according to the Irish Times.