You should be ok from big bend, I wouldn't try Stone Bridge to Big Bend, tho. There's no real ramp at Big Bend so you'll have to drag/carry a little bit.
The boat chute will be a bit dryish but do-able. You are probably ok unless your floating a big raft. DON'T MISS THE BOAT CHUTE! (It's not missable unless you close your eyes for 15 minutes.) There is a rock dam just above the 291 bridge, go right and you may get hung up, but it's public so you're ok there.