Building fences and pouring concrete

I need to tie the wooden fence back into the new structure so the dogs can roam in the back yard again. While backing up to unload concrete and posts for the fence, I barely tapped the corner of the garage with my trailer. Not a single scratch or dent or ding, but it made me say DIRTY words. I put my thunkin’ cap on and decided that if I did it once, I would do it again, and someone else would definitely smack the corner. A Bollard was in order. I went by Pacific Metals and picked up a 6’X5″X5/16″ wall hunk of square tubing and 4 sections of 3/8X10′ rebar.

I rented an auger to dig the needed 7 post holes and dropped in 1 more for the bollard. The fence post holes are 18-14″ deep, but the bollard hole is 38″ deep and after chipping away at it with a post hole digger, maybe 14-16″ in diameter with a bell-shaped bottom. I cut 3 of the rebars to 7’ and bent the three pieces into a fishhook shape, wire tying the tops together in 3 places. I then took the off cuts and bent them into a “U.”

I put the rebar in the hole, sitting on plastic rebar chairs and placed the post over them. I splayed out the “hook” sections and wire-tied the U-shaped pieced around the rebar and around the bollard. I then added another hoop around the original section and the tied hoop. Concrete was poured in and vibrated to get all the air and voids out. I filled the bollard with concrete and used a scrap section of rebar to agitate and pack down the concrete in the bollard.

I left 4” of the top of the square tubing free of concrete and dropped in a 6” lag bolt with to 3” sticking out of the wet concrete, but still in the tube. After the concrete dried and while I was setting some fence posts, I went back and finished off the top of the bollard with a bit more concrete. I will paint it red when I paint the doors to the garage. The thing won’t stop a tank, but it might save the corner of my garage from a moment of inattention…
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