There is good news and there is bad news:
The good news is that the A404 road surface is in good condition and does not yet need replacement.
The bad news is that it has a noisy surface which will be replaced by a quieter surface when it wears out!
Marlow Bisham Bypass Bridge A404, built 1972
Marlow Race. There used to be many complaints about the shallows beneath Marlow Weir and this name probably implies a swift current in what water there was.