We went out and spent the day following Peter Coleman's steps, or more accurately cycle tyre treads.
First was the railway bridge at Bristol Road, Stonehouse. This is what it looks like,
and this is forty years ago,
The Severn Bridge nowadays has a road deck, bright white superstructure and dark brown concrete.
But when it was being built it had dull superstructure and bright concrete, oh and no road deck yet but a mini railway instead.
This is Harriet and Dursley in high marshy grass.
And this is in 1967