That's one devil of a place for a crack! I would not be surprised if many poles have paint hiding the evidence.

Just a little note: If you have a repair like this to make, have a CERTIFIED weldor do it! That is, one specifically government licensed for structural welding. Do not use just any clown who claims to know how to wled, or who claims that 'school taught us to those standards,' etc. Get the real deal.

As to where to find the 'real deal:' .... that's one thing certain Unions have going for them (Pipefitters' is one). The man's union card will be specifically endorsed for every kind of welding for which the man is qualified.