The tide gauge building is located on land between the wartime jetty and the fuel storage depot, with the measuring points being
attached to the superstructure of the wartime Jetty.
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Tide gauge location
The tide gauge equipment is housed in a GRP building with the power and signal wires running under the land, along the jetty and
down to the transducers. Both signal lines are monitored by the POL data logger.
The tide gauge is levelled to the tide gauge bench mark supported by Ordnance Survey auxiliary marks.
There are currently no external users.
1984 – DATARING system installed with two full tide bubblers
1984 – A ship collided with the jetty causing extensive damage to the tide gauge
1985 – A temporary tide gauge was installed using an Aanderra gauge
1986 – DATARING system reinstalled with two full tide bubblers
1989 – Pressure points buried in mud; both pressure points lifted clear of the mud
1993 – The pneumatic system was replaced with transducers mounted underwater
2000 – New pressure transducers installed underwater
2001 – New POL data logger installed recording the two full tide sensors
2011 – Site decommissioned – superseded by Portbury (south side of the mouth of the River Avon)