At one time, there was a log bridge where the trail crossed Big Pine Creek. It was destroyed in a winter avalanche and the forest service never replaced it. There is a horse crossing very near the former bridge where the water will be between your ankles and knees. That was my experience in August. There is a lot of brush and rocks just downstream. You are not in danger of being swept away. So many old guidebooks and trip reports mention the bridge the forest service should have made this sign permanent.