Structure fire in Fortuna, alleged cause fire in electrical box

Fire in electrical box, according to scanner, structure fire in Fortuna . 62 (street name ?)

"fire extinguisher cannot handle"

Repeated the street name three times, hard to understand. If it is 62 Burr street, then it would be Rio Dell, not Fortuna but that is what the person calling dispatch said at the beginning of the call. And then rattled off several fire departments.