The Ohio Department of Transportation has been monitoring the temperature of the Ironton-Russell Bridge. The steel on the aging bridge becomes very brittle when it reaches low temperatures. If the temperature drops below minus 5 degrees Fahrenheit, ODOT will temporarily close the bridge.

More information: Daily Independent: ODOT monitoring Ironton - Russell Bridge temperature (Jan. 25, 2003) 

In related news, progress is being made on plans to replace the bridge. ODOT's plans for a new bridge have recently been approved by the Federal Highway Administration.

More information: The Herald-Dispatch: Impact study for new bridge completed (Jan. 27, 2003)