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Without wishing to state the obvious, it depends where on its length you measure, and when. Generally speaking it's far deeper in the estuary around Liverpool, where it meets the Irish Sea, and it's far shallower where it forms in Stockport, near Manchester, about 70 k upstream. However, the depth of the estuary depends on the state of the tide. However, the amount of recent rain has a huge impact - I live close to the river and have seen its depth change by as much as two metres from drought to flood conditions. Also, as the river approaches its estuary around Widnes and Runcorn it begins to form a series of wide mudflats that are important for wildlife. Here the river is broad, and when the tide is out, all that is left are shallow channels between the exposed mudflats. These are generally less than six feet deep - a few years ago a (quite tall) man actually walked across the river at low tide here. He had proper support though - I wouldn't recommend it.

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15y ago

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