Go back across the bridge?

From Reddit Choose Your Own Adventure

As you cross the bridge, much like the first time the bridge creaks and sways. When you get about half way, the bridge had all that it could take and snapped and you fall into the rushing river and are swept down stream. Right before you hit the water you think to yourself "I should have never second guessed my idea to cross the bridge."

Your being swept down the river. You don't have any other options.