A lot of sirens in the area have had to be removed, because of building demolitions, including that P-15 I mentioned in the post above. This has to be why pole mounted sirens are more common than they used to be.
Sorry to get off topic, but after reading that article about St. Bernard/Elmwood Place schools, I just wanted to mention that Finneytown is also in the process of getting new school buildings. I don’t want to explain too much here, but if all goes planned, Whitaker Elementary (former home of the Thunderbolt that sparked my interest in sirens) will be demolished unfortunately. The Thunderbolt was removed in 2013 when a new roof was put on the school, but had it never been removed, it’s fate would’ve been building demolition.