The lamp post at the corner of my driveway is perforated with rust. It appears to have come in two pieces as the top half is slightly smaller than the bottom and there is what looks like a reducing fitting at the midpoint. Other than that, it looks like most ~3" straight posts I've seen.
I dug down a bit and it seems like there's cement around the bottom of the post as if it was installed following http://www.thisoldhouse.com/toh/how-to/intro/0,,1531708,00.html. I don't want to have to take out the whole footing.
It seems that with something like http://www.lightingdirect.com/kichler-9510-72-cast-aluminum-post-with-concrete-hardware/p1222544 I could dig out around the existing post, put sonotube in the hole, fill that with concrete, cut the old post off at the top of the concrete, and bolt the new post down. Does make sense or am I missing something?