Boxing Day Flood at Horsforth The River Aire caused severe flooding on Boxing Day, December 26th 2015. There had been very heavy rain during the night and morning, following on from previous heavy rain over 2 or 3 weeks. The saturated ground caused the river to rise rapidly and by mid afternoon the Aire was flooding the area around Newlay Bridge. There are a few houses by the bridge, one was already being baled out, and horses were being evacuated from the stables on the other side of the river. 3 or 4 house seemed to be at risk from flooding.