to wrap up a question from a thread which has been closed for years, I'd asked what 4 old concrete spires at the intersection of River / King St. might have serviced, the answer comes from a good picture I've found, they remain from the electric streetcar days of a century ago. for whatever else they may have been used for in latter times it seems they were used originally to support wires that criss-crossed the roadways.
they're crumbling and likely have little time left before being removed, but they've survived against the odds all this time in ignominy