Tameside council had 'no idea' that the new high speed rail link would 'sever' the Ashton tram line until a week before the plans were put to Parliament.
Council leader Brenda Warrington expressed her 'dismay' that developing the new HS2 line could see Metrolink services to Ashton suspended for two years.
The Labour councillor spoke of the potential economic disadvantage the borough would face and the 'significant negative impact' on its ambitions.