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The PLA Hydrographic Service provides a wide range of services to river users
Select your gauge
We produce a wide range of charts and other survey products
We maintain 16 Tide Gauges and provide live and predicted tidal information
Bridge heights, survey data, chemical and physical analysis
Contents include: Tide tables | Sunset times | Port Comms | Bridge Clearances | Distance Tables
Published surveys issued by the PLA Hydrographic Service