Bridge number 7 (Brug Zeven) – Unnamed. So yes you may have seen a pattern of bridges 1-6 moving along Singel from the flower market. You’d probably expect bridge 7 to be Raadhuisstraat bridge right.
You would be wrong.
For bridge 7 is for some reason in Amsterdam Oud-West and forms the connection between Bilderdijkstraat and Frederik Hendrikstraat as it spans the Hugo de Grootgracht.
Ordinarily if a bridge is removed then the number is reassigned when there is a new bridge but so far I haven’t found any information on the location of the old bridge 7 which presumably should have been on the Singel between Bridge 6 and Bridge 8