In Bridgwater the River Parrett has a tidal range from less than 1m to almost 7m, in this image looking from West Quay across to East Quay which also housed dry docks for shipbuilding, both sides of the river used to unload ships from far flung parts of the world some for transhipment into barges for travel to towns up river, Please see PIP (An old postcard taken fron the other side of the bridge)
The river was so busy it is said you could cross the river by walking on the moored ships, silting has however narrowed the river since those days,

HFF and a good weekend, Large may be better.