Yes, we had a flood, which was not as disastrous as it could have been.  Most of the water flowed down the spiral staircase or through the floor and affected the museum galleries below us on every floor.  Those galleries were closed that day and some still have warped floorboards.

The flood started in our Mosses and Liverworts room on the 5th floor, where a water mains pipe fed into a smaller pipe.  It used to feed a water tank in that room, which is no longer there.  The pressure joint between the two pipes burst open in the middle of the night and water flooded out for a few hours before University security staff responded to the fire alarm.  They had to break open the door at the top of the spiral staircase to get in.

Luckily most of our specimens were off the floor on shelves but some…