Very little water flows in the old hole locations at low water. Scout from narrow island between right and center main channels. Run center channel by entering left or right of midstream boulder through willows and down the left side of the channel. Fast and shallow. Pin rocks at low water.
Difficulty increases with lower flow.
Consider portaging at very low water. 25 cfs is added to the river from SCE Powerplant No.1 on the left. Rafts routinely pin on these rocks at 1800 cfs and lower. Stay right at the exit. At low water Powerhouse is still a boat bashing descent.