WABASHA, Minn. – An $8.7 million municipal sewer construction project has been stalled by high water in the Mississippi River. The problem is ground water under the surface on Bridge Avenue, said Paul Mueller, the city water and wastewater superintendent. Mueller has put crews instead in what had supposed to have a later phase of the multi-year project. Meanwhile, part of Bridge Street, nearer the river, remains torn up  and  inaccessible. The project, which began on Main Street last fall, is replacing waterlines that are as much as 100 years old. Some pipes are lead, which has long-term toxicity for human beings and other living things.