Severn Beach, in South Gloucestershire, was a housing estate project in the ‘sixties, but still has echoes of past industrial activity, with its own railway station at the end of the line from Bristol, and old ferry connections to Wales and the Severn and Avon rivers. These valves, near to the Severn, were part of some pipework extending towards the Welsh coast, but far too rusty to be used now, I should imagine.