Originally posted on 12/24/2021:

cement and rebar a bad idea

Just call a local place that prefabs em and welds em. They'll come out, dig the hole, drop the welded, stainless steel unit in place, and cover it. Probably just as cheap and way safer.

The cement/rebar degrade significantly over a decade or two. Tree roots cause cracks in the cement and when it rains, the fraidy hole takes on quite a bit of water