eqc increased flooding vulnerability

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EQC Increased Flooding Vulnerability CAG overview 22 July 2014

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EQC Increased Flooding Vulnerability. CAG overview 22 July 2014. Outline. EQC land cover IFV – what it is and what it isn’t General IFV criteria Flood modelling Assessment process Settlement process Next steps. EQC Land Damage Cover. EQC land cover. Land Under building - PowerPoint PPT Presentation

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Page 1: EQC Increased Flooding Vulnerability

EQC Increased Flooding Vulnerability

• CAG overview• 22 July 2014

Page 2: EQC Increased Flooding Vulnerability

Outline• EQC land cover• IFV – what it is and what it isn’t• General IFV criteria• Flood modelling• Assessment process• Settlement process• Next steps

Page 3: EQC Increased Flooding Vulnerability

EQC land cover

• Land– Under building – 8m around building & structures– main access within 60m of dwelling

• Bridges and culverts in the land above• Retaining walls within 60m of building and

supporting the building or land as above

EQC Land Damage Cover

Page 4: EQC Increased Flooding Vulnerability

EQC land cover

Page 5: EQC Increased Flooding Vulnerability

Increased Flooding Vulnerability

IFV is – a physical change to residential land, that is – a result of the earthquakes, which– adversely affects the uses and amenities of that land, by– increasing the vulnerability of that land to flooding

events.

Changes to the insured land that result in it becoming more vulnerable to flooding as a direct result of the earthquakes are covered by EQC.

Page 6: EQC Increased Flooding Vulnerability

Not IFV

– Flooding that occurred pre-earthquake sequence, or – Increases in flooding due to changes to offsite

drainage due to earthquakes, or– Increases in flooding due to changes in streams and

rivers offsite.

Page 7: EQC Increased Flooding Vulnerability

General IFV Criteria

• The flood depth has increased by 200mm or more as a result of the Canterbury earthquake sequence, and

• The flood depth has increased by 100mm or more as a result of a single earthquake event, and

• The land has suffered observed damage as a result of the Canterbury earthquake sequence, and

• The change in flooding vulnerability has caused the value of the property to decrease.

Page 8: EQC Increased Flooding Vulnerability
Page 9: EQC Increased Flooding Vulnerability

Changes in ground levelsLiDAR surveys

• 5 different sets

Cross Section Surveys• For priority waterways

Earthquake Events

4 September 2010: 7.1M

22 February 2011: 6.3M

13 June 2011: 6.4M

23 December 2011: 6.2M

Pre-September 2010

Post-September 2010

Post-February 2011

Post June 2011

Post-December 2011

0 5 10 15 20 25 300.5

1.0

1.5

2.0

2.5

3.0

3.5

2Mile Creek Detailed Design Plan: Plan 06 11/11/2013 RS = 799.67

Station (m)

Ele

vatio

n (

m)

Legend

WS PF 6

Ground

Bank Sta

.059 .035 .059 .1

Page 10: EQC Increased Flooding Vulnerability
Page 11: EQC Increased Flooding Vulnerability

IFV Assessment Process

Page 12: EQC Increased Flooding Vulnerability
Page 13: EQC Increased Flooding Vulnerability

Next steps

• Ground truthing• Valuation• Declaratory Judgement• Possible settlement approaches

– Diminution of value– Contributing to CCC offsite flood mitigation works.