 The tugboat is approaching the bridge with barges loaded with coal. |
 This gives an idea of how fast the river is running. Obviously it is at or near flood stage |
 Oh DEAR!!! The bridge didn't open and the boat can't stop. Notice that the tug has released the barges. |
 He is backing as hard as possible to try and avoid a collision with the bridge but can't back down enough against the current. |