Boscastle Flash Flood: Case Study And Answers

Case study – Boscastle flash flood * Afternoon – Monday 16th August * 200mm rain fell in 24 hours – most in 5 hours * Average for whole of Boscastle in August – 75mm * Water poured down steep-sided valley slopes and swelled normal * Water poured down steep-sided valley slopes and swelled normally small River Valency flowing towards harbour = burst its banks. * Effects – * Nobody was killed * 58 buildings flooded, some had to be demolished * 25 business properties destroyed * 84 wrecked cars recovered from harbour and a further 32 lost * Cost of damage – approx £15m * Many ppl traumatised by the event and suffered increased levels of stress * Months that followed – buildings dried out using