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Part of: Flooding

Related to: Risk of Flooding , Flooding Incidents , Flood Management , Climate Change Mitigation and Adaptation, Heat Waves, Rural Areas, Built Environment, Natural Environment, Travellers and Gypsy Travellers, Biodiversity, Ecosystem Services,Green Infrastructure and Spaces, Transport InfrastructureHouse Prices and Tenure, House Conditions, Children and Young People, Older People, Ill Health and Disability

Key Facts

  • In B&NES, Walcot is the only Middle Super Output Area (MSOA) where 25% or more of the land is thought to be at risk of a significant river flood event.
  • There are 7 B&NES MSOAs where 10-25% of the land is thought to be at risk.
  • The majority of MSOAs in England and B&NES are thought to have an average or relatively low level of river flood disadvantage.
  • In B&NES Walcot is thought to have an extremely high level of river disadvantage and Kingsmead, Keynsham East and Keynsham North relatively high levels. 
  • In B&NES Walcot is thought to have an acute level of surface water hazard-exposure, Westmoreland and Lambridge extremely high levels, and Kingsmead, Oldfield, Midsomer Norton North, and Chew Valley relatively high levels. 
  • The majority of MSOAs in England and B&NES are thought to have an average or relatively low level of surface water flood disadvantage.
  • In B&NES Walcot is thought to have an acute level of surface water flood disadvantage, Kingsmead and Westmoreland extremely high levels, and Midsomer Norton North and Lambridge relatively high levels.

What does the data say?

Assessing Bath and North East Somerset’s vulnerability to flooding1

Climate change has the potential to increase inequalities as some people will be more affected than others, depending not just on their exposure to impacts, but also their social vulnerability. The Climate Just Web Tool has been developed to provide evidence to support local action.The Climate Just Web Tool highlights which people and places are likely to be most vulnerable to the impacts of extreme weather, including flooding and extreme heat and the areas which might be most affected. It also examines fuel poverty and inequities in energy policy and how these can be tackled locally.

Bath and North East Somerset’s vulnerability to river flooding according to the Climate Just Web Tool2

River flood hazard-exposure - Figure 1 broadly shows where river flooding is more likely in B&NES. It is based on the proportion of land area in a particular neighbourhood likely to be exposed to a moderate or significant river flood event. This is an imperfect representation of the likelihood of people and communities coming into contact with a flood.

Figure 1: The proportion of land in MSOAs in B&NES thought to be at risk from a moderate or significant river flood event according to the Climate Just Mapping Tool 3 4

0-5% of land is thought to be at risk from a moderate or significant river or coastal flood event in the majority of MSOAs in England and B&NES. In B&NES, Walcot is the only MSOA where 25% or more of the land is thought to be at risk of a significant river flood event, and there are 7 B&NES MSOAs where 10-25% of the land is thought to be at risk.

River flood disadvantage - Figure 2 shows how flood-related social vulnerability combines with the potential for exposure to flooding from rivers.

Social vulnerability refers to:

  • Personal features, such as age and health, which affect sensitivity to flooding impacts;
  • Environmental characteristics, such as the availability of green space, quality of housing stock or elevation of buildings, which can increase or offset exposure to flooding
  • Social and institutional characteristics, such as levels of inequality and income, the strength of social networks, the cohesion of neighbourhoods and the day-to-day practices of institutions, which affect people’s ability to adapt. 

Figure 2 therefore accounts for both the likelihood of coming into contact with a flood and also the potential severity of negative impacts on the health and wellbeing of local communities.

Figure 2: The level of river flood disadvantage in MSOAs in B&NES according to the Climate Just Mapping Tool 5 6

The majority of MSOAs in England and B&NES are thought to have an average or relatively low level of river flood disadvantage. However, in B&NES Walcot is thought to have an extremely high level of river disadvantage and Kingsmead, Keynsham East and Keynsham North relatively high levels. 

Bath and North East Somerset’s vulnerability to surface water flooding according to the Climate Just Web Tool 7

Surface water hazard-exposure - Figure 3 broadly shows where surface water flooding with a 1 in 30 year probability is more likely. It is based on the proportion of land area in a particular neighbourhood likely to be exposed to an event with a 1 in 30 year probability. This is an imperfect representation of the likelihood of people and communities coming into contact with a surface water flood.

Figure 3: The risk level of surface water hazard-exposure in MSOAs in B&NES according to the Climate Just Mapping Tool 8 9 

The majority of MSOAs in England and B&NES are thought to have an average or relatively low level of surface water hazard-exposure.  However, in B&NES Walcot is thought to have an acute level of surface water hazard-exposure, Westmoreland and Lambridge extremely high levels, and Kingsmead, Oldfield, Midsomer Norton North, and Chew Valley relatively high levels. 

Surface water flood disadvantage - Figure 4 shows how flood-elated social vulnerability combines with the potential for exposure to surface water flooding with a 1 in 30 year probability. Figure 4  therefore accounts for both the likelihood of coming into contact with surface water flooding and also the potential severity of negative impacts on the health and wellbeing of local communities.

Figure 4: The level of surface water flood disadvantage in MSOAs in B&NES according to the Climate Just Mapping Tool 10 11

The majority of MSOAs in England and B&NES are thought to have an average or relatively low level of surface water flood disadvantage. However, in B&NES Walcot is thought to have an acute level of surface water flood disadvantage, Kingsmead and Westmoreland extremely high levels, and Midsomer Norton North and Lambridge relatively high levels.