The Baltimore Street bridge will be reduced to a single lane at different times tomorrow and Wednesday, to collect field data related to the future replacement of the structure. Work will be done between 7 a.m. and 5 p.m. daily. Parking is being prohibited on the bridge, and “No Parking” signs will be posted on the bridge. Each end of the bridge will be flagged to route vehicles around the contractor’s equipment. Traffic patterns will be restored at the conclusion of each days’ work.