I've added this pic in my post above as well, to show how I store them in rows spaced 12' OC. You could pick one row out between the adjacent rows, even if you had duals on when they're stored this way. The snow melts down off the bales, instead of bridging and piling up between them, and then melting down INTO the bales more. Less spoilage, easier access to any kind of hay that you might want. Can "blend"... taking one 1st crop, and one 3rd crop bale, if you want, etc. Notice the "bale rails" underneath each row. When stored this way, you can back down the row, straddling the rails easily... as you see in that far right row... Right now, I've got 3 or 4 rows of rails in the bale yard out there that have had all the bales completely removed from them. Each full row is 50 bales long (approximately 250'). Makes inventorying simple. It's best to have the rows run up and down the hill (not across the hill) for better drainage. Pic is taken looking "uphill"...
If you do this for a few years, because of tractor caused compaction, you'll have the "tractor tracks" that run on each side of a "raised area" where the row itself is sitting on the bale rails... = better drainage too. If one wanted to, you could "cover" the bales with some plastic, or a tarp, about 8-10' wide, running right down the row, and then just pull it back when feeding. I haven't done that, but I'm sure it would help to save more hay. They'd shed all the water off the sides then. It could be "pinned down" with stakes stuck into the bales on the bottom edges, maybe one per bale on each side. A tarp, with eyelets riveted on, would work for this. I haven't gone there... too much of a hassle to deal with that, for the minimal amount of spoilage that I'm seeing on the bales when stored this way.
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