Abstract From 1930 to 1960, in Belgium, steel railway bridges were regularly designed using the vierendeel system. Three lines cross Mechelen‐Leuven canal town of Mechelen, providing a unique example this type application. Two these bridges, which constructed 1953 renovated 2021–2022, including installation new rail fastening. It was discovered that 1936‐built third and oldest bridge had multip...