from what I just read of that local article and other sources..
1) water is being released from the smaller resevoirs to meet the fish requirements
2) they have enough storage to do this for 7 days (well 4-5 now)
3_ that article said if they can’t get the power plant back online after 7 days they will have to use the main spillway again
4) I’m not sure how much debris they have to remove to prevent backup but 1.5 million cubic yards is estimated washing in and they removed 60,000 so far
5) if they use the main spillway it will dump more debris back into the channel
translation: they have more 5 days to remove enough debris or maybe start over
It all seems like it depends on the weather at this point...
The lake level is at 844 1/2 and rising about 2 feet per day.
They have said they will let it fill to 860 feet before
they re-open the gates on the main spillway.
They are doing what they can to control the inflow, but
another storm or warm weather snow-melt and all bets are off.
So I guess those guys moving rock out of the river
are working 24/7 for as long as the weather holds out.