Traffic is down to one lane on the Bayview Bridge in Sturgeon Bay today. The Department of Transportation has scheduled a cleaning project for the more than 30 year old structure which is expected to take the better part of the day & may continue into Tuesday. Apparently, the project centers on work in a machinery room in the span. Motorists are advised to take extra time if they plan to use the bridge or find alternative routes from one side of the city to the other.