I used to launch my 12' inflatable there with an 18 hp outboard. Stay on the west side and you'll be fine. I've run all the way up to almost Carnation farms from Duvall. There is a nasty log mess on the north side of the Novelty Bridge that is impassable in low water. It's best to go in clear water so you can scout out snags and several old concrete abutments. Actually a better place for silvers is either at the launch under the Tolt Bridge or trolling up steam from HighBridge. Down stream of high bridge is good, but there's some fast, low water where you need a short shaft tilted up with plenty of poop to get up the rapids. I've never busted a shear pin, but I always head upstream in case something does happen.