As of August 2016, the best way to hike this trail is after about 1.5-2 miles, continue to hug the right side of the canyon bottom. There's a point where the canyon wall forces you to cross the river, at this point go about 15 feet along the river and then cross back to the right. There's an easily-missed scramble up some 10 foot tall slope here that will put you into the old roadbed that you can continue on al the way to the bridge, avoiding having to hike up the wash and any additional river crossings. This may all change after the next heavy river flow.