Margaret Rule 6 - Working around the tidal pattern.

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Margaret explains how the tides and water conditions affect the excavation work.

 

 

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Basically you were organising all your shifts round the tide tables, and you were trying to work on enough water to take away the mud, but not too fast to be destructive. So you're working around the tidal pattern and you'd work out for instance, if I wanted to take a photograph I'd try and do it in comparatively still water because I wanted to lay still, or hold my camera and stay in place. But if you were air-lifting you wanted some sort of run, half a knot or so to take away the mud or the silt. So you planned all your diving and your work around the tides, you also planned where the divers would be working on site. If there was a current running you'd never let anybody work up tide of somebody else or he was working in rubbish.