Two more bridges in Winneshiek County have been closed to traffic because of structural problems.
Bridge #185 on 107th Street in MIlitary Township has been closed due to problems with the bridge's concrete abutments.
Bridge #192 in Fort Atkinson on 150th Street has been closed because of corrosion of bridge materials.
The Winneshiek County Engineer's Office says the two bridges will remain closed until they can be replaced.