Kingdom Hearts Question PLEASE HELP ASAP!?

Ok, so I'm in the Deep Jungle...I got to the Tree House, and the bridge that broke is just out of reach of jumping (I don't have glide yet), so I found this barrel and picked it up and set it down right in front of the bridge...that way, I could jump on the barrel, then onto the bridge. But I picked up the barrel and moved it elsewhere for something else, so when I tried to put it back down in front of the bridge, I accidentally threw it too hard and it landed on top of the bridge. I went back to the camp and then came back to the treehouse again, hoping that the barrel would reappear...it didn't. Now I don't know how to get on the bridge to get up higher...what should I do? PLEASE ANSWER ASAP...FIRST ANSWER THAT'S RIGHT GETS FAVORITED. THANKS!