As work continues in Eastern Spain to reconstruct and repair after the November floodings, our mighty country manager for Greece Asimina Stathopoulou has found a 1994 thesis by a colleague archivist, Panagiotis Mavrantonis, which documents the process of saving the Archives after major damages caused by the floods in Athens in 1994.
You can find it here (in Greece): https://dspace.lib.ntua.gr/xmlui/handle/123456789/44269?show=full.
Also here the video that shows some elements of the disaster and the rescue process :