This was minor compared with events at Whaley Bridge, where Toddbrook Reservoir was overtopped and another reservoir known as Adsheads Pools breached completely, the waters sweeping through the centre of the village of Hurdsfield. The June 1930 flood was more serious for New Mills. Heavy rain over the area culminating in a cloudburst over Rowarth caused the River Sett to rise rapidly by up to . Many properties on Brookside were flooded and destroyed and one rescuer was drowned. Hyde Bank Road was engulfed and buildings collapsed at Arnfield's foundry. At Rowarth, the remains of the Little Mill and the landlord of the Little Mill Inn were swept away. At Watford Bridge the river took away part of the printworks, and at Bate Mill gouged a new channel taking with it the sewage plant, 250 tons of coal, most of the road and the gas main. At Birch Vale, the problem was caused by the waters cascading down from Lantern Pike; the culvert being inadequate, the roadways became rivers washing away sections of walling. Much livestock perished.