 Over the years since European settlement Waterfall Gully has suffered from both bushfires and flooding . The gully was severely hit by a number of bushfires in 1939 that threatened the area , and further bushfires in the early 1940s caused considerable damage because of the war effort diverting supplies and personnel from the Country Fire Service ( <unk> ) . Significant floods occurred in 1889 and 1931 , and , on the night of 7 November 2005 , Waterfall Gully was one of several areas in Adelaide to experience severe flooding . Waterfall Gully was one of the hardest hit suburbs : Bob Stevenson , Duty Officer of the State Emergency Service ( <unk> ) , commented that " There 's an area called Waterfall Gully Road , in the foothills , where one of the creeks comes down , and there 's quite a few houses affected there ... there was 40 or so houses affected on that one road alone . " Properties were flooded , two bridges nearly collapsed , and 100 m ( 330 ft ) of road was washed away . Burnside council workers , the <unk> and the <unk> repaired the initial damage on the night while reconstruction of infrastructure commenced in late November . Much of the road had been inaccessible , and the suburb was closed except to residents and emergency workers for the remainder of the month . 
