NADNAC – National Assessment of Defence Needs and Costs for flood and coastal erosion management

Background and Goals

The project examined the needs and costs for coastal and flood protection in the United Kingdom as a basis for the adjustment of national expenditure (2004) for coastal protection in the United Kingdom. For this, the study builds on earlier studies. The study quantifies the investment needs at a national level based on the existing socio-economic conditions and government policies; future population growth or increase in wealth are not taken into consideration. Although thecost estimates include a reserve for sea-level rise and potential adaptation measures to counteract a higher flood risk for rivers, the damage estimates do not include the effects of the climate change.

The aim of the project is to assess the requirements for flood and coastal protection and estimate the cost of the required measures.

Content time

Research area/region

Country
  • Great Britain

Steps in the process of adaptation to climate change

Step 1: Understand and describe climate change

Approach and results 

Climate scenarios are not considered

Parameter (climate signals)
  • Sea level rise und storm surges
Further Parameters 

Meeresspiegelanstieg und Sturmfluten

Step 3: Develop and compare measures

Measures and/or strategies 

The study quantifies the investment needs at a national level based on the existing socio-economic conditions and government policies.

Step 4: Plan and implement measures

Costs of the measures 

The aim of the project is to estimate the cost of the required measures for flood and coastal protection.

Participants

Funding / Financing 

Department of Environment, Food and Rural Affairs (Defra)

Project management 

Department of Environment, Food and Rural Affairs (DEFRA), Flood Management Division

Cooperation/Partners 
  • Halcrow;
  • HR Wallingford;
  • John Chatterton Associates
Contact

Department of Environment, Food and Rural Affairs (DEFRA)
Eastbury House?30 - 34
SE17TL London
United Kingdom

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Fields of action:
 coastal and marine protection