| 11. | Irvine Harbour is home to a unique and distinctive building which marked the tide level.
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| 12. | In it he recommended regularly comparing the height of the dikes with the high tide level.
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| 13. | The wharf was close to the river bank, and was only accessible at higher tide levels.
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| 14. | Tide levels in the lake are damped to about a third of the lagoon tidal levels.
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| 15. | The weather service is predicting a " life-threatening " 10-to 20-foot storm surge above normal tide levels.
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| 16. | It inhabits isolated areas on sandy bottoms below the low tide level down to a depth of.
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| 17. | It is found around low tide levels and deeper, under rocks and wandering over seaweed in pools.
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| 18. | These snails live in intermediate habitats at high tide level, on mud, in protected estuarine and coastal areas.
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| 19. | Surges were running about 9 to 11 feet above normal tide levels Wednesday, the National Weather Service reported.
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| 20. | It extends 500 metres into the sea and 100 metres from the high tide level onto the land.
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