蜜芽传媒

As the River Severn nears the sea, the floodplain is wide and there is little high ground to build on. People have built on the floodplain since Victorian times and flooding is a constant threat. The Severn ends in a wide estuary which has a high tidal range. Mudflats are found here. The deep estuary is ideal for industry as large boats can navigate easily and the flat land at the side is cheap and plentiful.