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H19 East Coast NRA assessment - FD2676

In Autumn/Winter 2011, HSL undertook some work for Defra (FD2655) to model the impacts of a coastal flood
event affecting the east coast of England. This work concentrated on three areas of population, property and
infrastructure, and was developed to make use of existing and up-to-date modelling techniques, and exploiting
available data sources. The flood scenarios used were modelled based on meteorological and tidal conditions that were
similar to those experienced in the east coast flooding event that occurred in January 1953 which had major
consequences along the east coast of England and on the coast of Northern Europe. The results of the work
were used to update the National Risk Assessment (NRA) for major coastal and tidal flooding.

Defra now require further work to be done to inform the next update of the NRA and this project will provide evidence to be used to feed into the next NRA.
The risk of a large-scale coastal flooding event impacting the East coast of England is included in the UK’s National Risk Register, and considered as one of the highest priority risks. Preparing for such events requires an understanding of the risk, based on up-to-date impact assessments that apply the latest understanding in scientific methods and techniques.

The aims of the work were to prepare improved evidence for coastal flooding hazard and impact affecting the English and Welsh coastline to support the entry for coastal flooding (reference H19) in the UK’s National Risk Assessment (NRA). The assessment modelled five extreme but plausible scenarios based on historical flood events and related statistical and hydraulic modelling. Impact models were required to assess impacts on population, property, infrastructure, transport and agriculture.
Project Documents
• FRP - Final Report : H19 Coastal Flooding Methods v2.0   (1921k)
Time-Scale and Cost
From: 2014

To: 2016

Cost: £93,700
Contractor / Funded Organisations
Health & Safety Laboratory
Fields of Study
Flood and Coastal Erosion Risk Management