This almost blank stone tells an interesting story, all that remains is the name R Sawtell, County Surveyor, the rest has been chipped away.
During 1940/1941 the threat of German invasion was great enough that many signs and markers were removed, to confuse the potential invaders.
Mr. Ronald Sawtell, is the county surveyor by 1934, and there are many news reports from 1934 complaining of the state of the previous bridge which must have prompted the current one to be built some time after that.
So the inscription is only likely to have been in place for a few years in the late 1930s. I have been unable to discover exactly what it said. Presumably it mentioned “Skelton” or “Apple Orchard Bridge” which would have helped invaders confirm their location.