I've thought about floating osage logs before , it don't float, they would be lighter in the water and if it isn't to deep you could wade across with them.
I've seen some nice logs in the Cimeron river , unlike other trees that float down river the osage sinks down into the sand and disappears over time. They are building a new bridge and pulled a large log jam out of their way but no osage in it.
I'm going to salvage some osage in a little while , they dozed up some on the river , won't have time to anything with it when I get home so I'm going to role it of into my pond to keep it from splitting all up and to keep the bugs at bay.