Case studies for 1.1.1 Flashcards
When was the Dawlish Storm event?
5th February 2014
Where is Dawlish?
Town on the south coast of the county of Devon in south west England, 12 miles from Exeter. The town is 5 miles west of the mouth of the Exe estuary.
What damage occurred during the Dawlish storm?
The sea wall protecting the rail line was severely damaged and even breached in some areas. Some roads were washed away damaging homes.
What processes caused the damage at Dawlish?
Concentrated erosion in particular hydraulic action and abrasion
What caused the storm at Dawlish?
Deep areas of low pressure of around 946mb and gust speeds of 60-70 knots caused by a powerful jet stream of low pressure moving across the Atlantic. The mixture of high seas and strong winds made the waves very destructive.
What stakeholders were affected by the Dawlish storm?
Residents of homes who were destroyed, residents reliant on public transport (train line), cars and other possessions destroyed.
What was the estimated damage costs of the Dawlish storm?
£14 million
Where is Hallsands?
Hallsands is a village and beach on the south coast in the South West of England and roughly 2 km south of Beesands.
What was the area, affected by the storm, built on? And what originally protected it?
The area of the village was built on a wave cut platform and was protected by a pebble beach formed from an ice age beach that was brought inland by sea level change. The surrounding cliffs also protected from the south west prevailing wind.
When was it decided that the dockyard at Devonport would be expanded?
1880s
In 1886 what was Sir John Jackson granted permission to do?
To dredge along the coastline between Beesands and Hallsands.
From what years did dredging occur at Hallsands?
1887-1902
How much shingle was dredged at Hallsands?
600,000 tonnes
What was the date that the disaster struck Hallsands?
26th January 1917
What damage occurred at Hallsands?
29 out of the 39 homes were destroyed
