Winter 2013-14

Event Date

350mm

Rainfall (Jan-Feb)

12+ weeks

Flooding Duration

£118M

Economic Cost

Location & Context
Why the Somerset Levels are vulnerable to flooding

Geographic Facts

  • LocationSomerset Levels & Moors, South West England
  • Size650 km² of wetland
  • Altitude0-8m above sea level (extremely low-lying)
  • Population~28,000 people on the Levels

Why Vulnerable?

  • Low-lying: 0-8m above sea level
  • Slow rivers: Gentle gradient can't discharge quickly
  • Peat soil: Land sinking (subsidence)
  • Tidal influence: Bristol Channel affects drainage
Causes of the Floods
Physical (natural) and human causes - click to expand
Effects of the Floods
Social, economic, and environmental impacts

600+

homes flooded

Water up to 2m deep, remained 8-12 weeks

4+

weeks villages cut off

Muchelney, Moorland, Thorney isolated

50+

miles of roads closed

50+ mile detours for local journeys

30

households stranded

Only access by boat or tractor

Responses to the Floods
Immediate emergency actions and long-term management strategies
Key Statistics to Memorize
Essential facts for exam answers

Rainfall

350mm in Jan-Feb

100mm above average

Homes Flooded

600+ properties

8-12 weeks underwater

Farmland

17,000 acres

12+ weeks flooded

Economic Cost

£118M

Central estimate

Water Pumped

65 million m³

65 pumps deployed

Dredging

8km, £6M

235,000 m³ silt removed

Quick Quiz
Test your knowledge of the Somerset Levels case study

1. How much rainfall fell in January-February 2014?

2. How long had dredging been stopped before the floods?

3. How many homes were flooded?

4. What was the total economic cost (central estimate)?

5. How much water was pumped out?

6. What organization was created in 2015 to manage flood risk?