Coastal Management: Swanage, Dorset 2.0 / 5 based on 1 rating ? GeographyCoastal zonesGCSEAQA Created by: Jess.SimpsonCreated on: 19-05-16 19:33 Where is this coastline located? South East corner of the Isle of Purbeck 1 of 13 How long have the coastal defenses been carried out since? 19th century 2 of 13 How long is the stretch of coastal defenses? 1.8km 3 of 13 When was the extension added to the sea wall and timber groynes? 1920s-1930s 4 of 13 What did the extension do to the beach? Starved the beach 5 of 13 When was rock armor put in place? 1980s 6 of 13 What was done to the rocks in the cliffs? Ground water was drained to improve stability 7 of 13 What were the schemes' purpose? To determine the most suitable method of retaining sediment, dissipating wave energy and reduce the flooding and whilst maintaining the beach 8 of 13 How many tropical timber groynes were added in 2005? 18 9 of 13 When was the scheme finally completed? June 2006 10 of 13 What was the total cost of the scheme? £2.2 million 11 of 13 How often is 40 000 meters of sand to be deposited on the beach to keep it nourished?? 20 years 12 of 13 What problems are there with the coast? Landslips as rainfall lubricates the impermeable marl beds 13 of 13
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