Sorted my concrete beams with the excavator. The jungle had grown over them so I couldn't even see them.
The longest one went under the big trees next to the other one, to eventually become a foundation for the sawmill.
The short ones went here into the firewood store, because the previous ones are full and I got lots more firewood to stack.
Some of the broken ones got moved to the scrapyard, which is what I decided to call the area behind the big barn where I'm moving all the scrap.