Plans to build a £125 million barrage across Cardiff Bay suffered yet another setback last week when a Parliamentary committee refused to allow a hybrid Government Bill to be carried over from one session of Parliament to the next.The decision, by the House of Commons' Standing Orders committee will delay the Bill's passage through Parliament by only two months. However, an election during the next session of Parliament could delay it further and even put its future in jeopardy.A Welsh office spokesperson said: 'It is a matter of regret that the Bill will not go ahead as fast as we had hoped. However, we are still fully committed to press ahead with it as soon as possible within the parliamentary timetable.'As the Bill is being promoted by a Government department, it could continue through Parliament if another Conservative government is elected.But its future is not as certain if the Labour Party is elected.A leading opponent of the barrage is Rhodri Morgan, Labour MP for Cardiff West. He estimates that even with the Conservatives being elected the Bill is unlikely to receive Royal Assent before Christmas 1992, and says there is no commitment to the barrage by Labour.A Bill to build the barrage has already failed in Parliament. Earlier this year the Cardiff Bay Development Corporation and South Glamorgan County Council co-promoted a private Bill which was talked out by opponents in the House of Commons.The barrage is central to the development corporation's plans to redevelop the former dockland area of south Cardiff by creating a lagoon with a constant water level.See pages 14-15.