The tide gauge is located within the Old Lock Keeper's Office at the entrance to Gladstone Dock. The pressure points are located on
the seaward side of Gladstone Lock.
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Tide gauge building
The tide gauge consists of a pneumatic bubbler system supplying two full tide pressure points. These are mounted on steelwork
attached to an access ladder on the seaward side of the dock entrance. Both pressure lines, wind speed and direction are monitored
by the POL data logger.
The tide gauge is levelled to the tide gauge bench mark supported by Ordnance Survey auxiliary marks.
Sea level pressures and/or elevations from this site are supplied to the following authority:
- Environment Agency, North West Region
1991 – DATARING system installed with two full tide pressure points and datum probe
1995 – Wind speed and direction instruments installed
2000 – POL data logger installed
2001 – Mid-Tide pressure point installed
2003 – Wind speed & direction instrument failed