It should be noted that a SMP only sets out policy for coastal defence management. It doesn’t set policy for any other ways of managing flood risk (such as land drainage) or for the management of coastal resources (e.g. aggregates). It does, however, take into account plans and policies that manage flood risk from rivers (e.g. Catchment Flood Risk Management Plans) to ensure that they do not contradict each other.
This is the Environment Agency’s plan to manage tidal flood risks in the Severn Estuary. It covers the coast from Gloucester to Lavernock Point near Cardiff and from Gloucester to Hinkley Point in Somerset.