As you can see, I have made some good progress on the log bridges. Most of it has been done today - I finally knuckled down and did the lashings.
The thread has been reinforced with thin superglue. That should harden it and prevent the ends fraying.
It turned out that I did have enough linen thread for these, but I will need some more as I plan to do a vehicle-width bridge (or maybe two) as well.
I decided this afternoon to do a rough-and-ready "trunks laid across the stream" type bridge as well. I glued some 10mm blue foam onto oval bases, then shaped the foam with my hot-wire cutter and a sanding block. I then scooped out a recess on each piece using the hot-knife for the logs to sit in.
Tomorrow I will be seating various log bits onto the bases with brown frame sealant. On Monday I will add some basing texture and might think about adding some small jungle plants.