Ken, I was thinking of something along the same lines. 1/4" or 3/8" steel to make the mailbox from, bolted to a 1/4" or 3/8" plate welded to the top of a piece of 4" OD pipe I got from JKB. On the bottom, weld a plate with four 1/4" holes. In the ground cement in another piece of 4" OD pipe with another plate with 1/4" holes welded to it.

Attach with grade 0 1/4 bolts to act as shear bolts.

Then I found out that I can't use the 4" OD pipe as a post.....

I'd make the mailbox to the largest allowable size, and have an angled slip on cover that would be placed on the side that was hit by the snow from the snowplow to direct the snow up and down from the mailbox, effectively turning the one flat side to a plow just for the winter.

Heavy enough to let someone know that they hit something solid, also heavy enough to resist baseball bats. But still not an immovable object of someone were to run off the road.

Before I bought this place, a high school kid was going too fast, went airborne with the car roughly 200' further up the road, and slammed into the tree that was where the mailboxes are now. He died at the scene.

I had the baseball to mailbox problem in Ca. I made a mailbox like what I am planning, and one night I heard the banging down the street of a baseball bat hitting every mailbox on the street. The noise stopped after my place. In the morning, there was a bunch of broken glass in the street at the mailbox. I can only guess the baseball bat bounced off the mailbox and broke a window in the car that was holding the kids....

I moved 3-4 years after that, but that was the last year that we had any problems like that. laugh


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