Revised Local Reference (RLR) Diagram for SOUTHEND

Station ID: 334

RLR diagram based on the information in the datum section below

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Datum information

Add 6.958m to data values up to 1965 to refer to RLR (1964)
Add 6.961m to data values 1966-1973 to refer to RLR (1964)
Add 4.058m to data values 1974-1981 to refer to RLR (1964)
Add 4.068m to data values 1982 onwards to refer to RLR (1964)
RLR (1964) is 17.238m below BM TQ 8843 8510