From Portland, drive like you're going to Mt Hood. Once you get to the 25 MPH section of the town of Sandy, the road splits into 2 one-way sections running east and west. Right when they are about to converge into the main highway again there is a road called Ten Eyck turn left on this road. Follow for a couple miles and turn left onto the hatchery road, and follow this to the hatchery. Park and walk to the river.