(Canadian Press)-A long-promised $600-million flood prevention project in Manitoba is now under review, and the provincial government has opened the door to redesigning it with no timeline for starting construction. The NDP government said it has asked Ottawa to pause a decision on the plan, in order to fully consult First Nations and consider possible alternatives to the design. It would currently have two large outlet channels built to drain water from Lake Manitoba into Lake St. Martin then into Lake Winnipeg. “The federal government had already expressed significant concerns,” Lisa Naylor, Manitoba’s minister of transportation and infrastructure, said Thursday. “If the federal government had withdrawn the licence because of the environmental impact, the project would be dead. And so, I don’t want to see that happen.” The project has…