(Washington County) The Wisconsin Department of Transportation will begin bridge repairs on County Road NN over Highway 45 in Washington County beginning Monday. Officials say NN will be closed to through traffic at Highway 45 from June 14th until approximately July 2nd. They say construction at the bridge requires excavation that ill impact traffic lanes. Detour routes will be available on Mile View Road to the south, and Paradise Drive to the north. The work is part of the Highway 45 rehabilitation project in Washington County.