There’s actually a bigger problem here. The features that @watmildon retagged were generally classified using the NHD Feature Code 48400, which applies to both dry washes and bars (i.e. sand or shingle) within the courses of perennial rivers. I guess if you’re a geologist, the two are somewhat similar, since both are coarse alluvium.
You can see many of these features with their original import tags here: overpass turbo. Sadly, these features have not been well mapped in OSM. The river bars can be tagged as natural=sand or natural=shingle depending on their composition. Using natural=shoal + surface=sand/gravel/shingle is also acceptable.
But we don’t have a great tagging scheme for dry washes. That’s a subject for a more detailed discussion, so I’ve started a new thread: Properly mapping dry washes