The Minister for Transport, Mr Seamus Brennan, has said the M50 will be a road to nowhere if interested parties cannot get past current difficulties.
He was responding to this morning's Supreme Court judgment granting an injunction preventing work on the M50 from going ahead at Carrickmines Castle.
Speaking to Newstalk 106this afternoon, the Minister said 80 per cent of the motorway is completed and "it's unrealistic for it not to be fully completed".
The implications of the Supreme Court's ruling restraining Dún Laoghaire/Rathdown Council will have enormous implications, according to Fine Gael's, Ms Olivia Mitchell.
Responding to this morning's Supreme Court decision to grant a Restraining Order to the Carrickminders, Fine Gael Dublin South TD, Ms Mitchell, said "if we wonder, as several newspapers did this weekend, why the price of our infrastructure is so much greater than anywhere else, then here is our answer. The planning risks in Ireland are enormous, unknowable and completely open-ended".
"I am requesting an emergency meeting of Dun Laoghaire Rathdown County Council so that the entire issue of the South Eastern Motorway can be reconsidered. I am asking that the Council now commence negotiations with the contractor to terminate the South Eastern Motorway contract and to design and commission a temporary termination point for the motorway pending final court clarification," said Ms Mitchell.
"It is heartbreaking that after years of work and hundreds of million of Euro expenditure that the Council is now forced into postponing the completion of the ring road around Dublin.
"But we cannot leave the Council or the taxpayer indefinitely exposed to compensation claims and we don't know how or when this legal process will end, added Ms Mitchell.
Labour Party Spokesperson on the Environment, Mr Eamon Gilmore, has this afternoon claimed that the crisis over the construction of the M50 motorway at Carrickmines could have been avoided had the correct route been selected in the first place.
"The debacle over Carrickmines Castle which has resulted in today's Supreme Court decision, is the direct result of the wrong route being selected for the motorway in the first place. The motorway should never have gone through Carrickmines as an alternative had been identified as early as 1992," said Mr Gilmore.