So I hiked up from Shoshone to Barrell Springs rapid today and yes, technically, it is running. But LOW. I have boated it at this level and maybe even slightly lower in the past. I won't sit here and say it is "good to go". But if you are hungry for some mank, grab yer elbow pads and git er done.
PS. If you do hike up from Shoshone, check out the cool ice formation at the upstream spout at the power plant.