Passing under bridges must be done with great care, either by truck drivers or by boat owners. If, in the case of trucks, when the truck is at the limit of that of the bridge, it is used to deflate the wheels, when we talk about a boat it must be loaded with a weight big enough to enter as much as possible in under the water.
In this video we will see a stubborn boat owner who stayed for 2 hours stuck under this bridge and refused the help of others.
Surely with another 3-4 people in the boat would have been enough to unstuck the boat