Flooding - Carlisle Case Study

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  • Created by: yott33
  • Created on: 11-01-16 09:45

About

8th January 2005

  • River Eden
  • Flood return interval (RI) = 200 years
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Causes

Physical

  • Heavy rainfall for 36 hours - 200mm
  • Saturated ground
  • Large drainage basin - steep sides, many streams
  • High peak discharge

Human

  • Urbanisation - impermeable concrete and tarmac, little vegetation
  • Drains and sewerage systems overflowed - 25% of flooding problems were associated with the overflowing drains
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Social and Environmental Impacts

Social

  • 3 people died
  • 3000+ homeless, thousands of personal possesssions were damaged
  • Children lost out on education - 4 schools severely flooded
  • Increase in stress-related illnesses

Environmental

  • Increased river bank erosion
  • River's polluted w/rubbish and sewage
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Economic Impacts

  • Damages to over a year and cost £100+ million
  • 350 businesses had to shut down
  • No electricity, telephone service or transport - trade activities from railway station suspended
  • United Biscuits, largest employer in Carlisle, flooded with 3m of water that caused £5+ million damage - 33 out of 1100 employees lost jobs
  • 70 000 addresses had no power
  • Sewage works, police station, fire station and council offices severely flooded
  • 80 buses destroyed
  • Many roads and bridges damaged
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