Not a great shot but kept forgetting to get pictures and it is the very first bridge on the shortest loop I do. Doesn't look like a bridge as I'd have to climb the fence to get the rest in and too much effort as it would still not look great but it does cross a river.
From a hardpack little singletrack line between 2 hedgerows and back in to another leaf covered back way, the ancient Icknield Way is (rightly) carried over both the M and A11 roads on its very own bridge.
This is the southbound view (with my bike in the way).