A Grade Two listed bridge near the village of Welton, in Cumbria, has collapsed.
Bell Bridge is the latest in a large number of bridges in the region that have been damaged by heavy rain, wind and flooding over the winter.
The outdoor charity fundraiser has been cancelled because of severe weather.
The Met Office has issued yellow warnings for rain across much of the country on Wednesday as ex-Storm Jonas sweeps in from the Atlantic
The Glenridding Hotel has flooded again - after flooding three times in a fortnight in December.