Per Barbara Ray, who was kind enough to send me a report and a couple of photos (thank you), this is what is happening. These photos were taken Friday. Barbara talked to the new biologists Thursday and Friday.

“These sand bags are to divert the east branch of the river to join the west branch. The road is complete from the highway to the beach and the bridge is in.

They will stun the fish to move them.
They plan to remove the blocks and replace them with large boulders. 

Barbara”

Caltrans has all the necessary permits and they are good until the middle of October. They can get extensions, if necessary.