✅C&W Case Study - Boscastle Floods 2004

Question 1

When was the flood

Answer 1

August 2004. Rivers burst Aug 16th

Question 2

River catchment enviornment

Answer 2

It lies at the mouth of the river Valency, surrounded by steep (flashier hydrograph) Valency valley, which is covered by woodland

Question 3

Where is Boscastle

Answer 3

Boscastle is a village and fishing port on the north coast of Cornwall, England, in the South-West

Question 4

Boscastle industry

Answer 4

fishing, tourism, local services

Question 5

Flood defence?

Answer 5

Very little, had not been flooded in living memory

Question 6

Physical factors in the flood

Answer 6

Antecedent conditions: heavy rainfall had saturated permeable limestone
Small basin- flashier- 30km^2
Round basin- less lag time
Steep
50mm rain in 2 hours, burst river banks, water got 10 feet high

Question 7

Human factors in the flood

Answer 7

Urban impermeable surfaces, more runoff
lack of preparation

Question 8

Response

Answer 8

Helicopters recused 120 from roofs
Flood warnings put up