A north-east bridge will be closed for an inspection by a local authority.
Banff Bridge, the main route into the town, will be shut between 5am and 1pm on Sunday.
Aberdeenshire Council is undertaking a “routine inspection” after heavy rain and flooding affected the area.
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A diversion will be put in place on the A947 to Turriff via Market Street, Church Street, Gladstone Terrace, Deveron Street and Deveron Road to the B9025 to Aberchirder.
Aberdeenshire Council said in a statement: “A reminder to motorists that Banff Bridge will be closed for one day this Sunday to enable a routine inspection to be undertaken by Aberdeenshire Council.
“The bridge closure was scheduled before the recent flooding, and in the interests of public safety, will be closed from 5am to 1pm.
“Access for pedestrians and emergency vehicles will be maintained.”