58chev
Pulling my weight
Where I work, all our fiber is 50/125 with a couple of runs close to 1800' between buildings.I don't think I'd use 62.5 multi mode though, 50 micron would make more sense.
We do have some areas where fiber is in conduit out to a coupe of security guard houses. I am sure that these are no more than 12"-18" down, no where near below the frost line. Have been in operation without incident for well over 15 years now.