In 1979 the tugboat Cahaba was headed down the Tombingbee River in Alabama, USA. The current was flowing fast as the tug’s pilot approached the bridge and released his coal barges. He then put his 1800 horsepower twin engines into reverse to get away, but when the boat moved slightly off line the current swung the boat sideways and slammed it into the bridge. The current was so strong that it forced the boat down under the water. To the astonishment of onlookers it passed under the bridge and popped up, upright, with the engines still going and the pilot at the wheel, on the other side. Why did it come back to the surface in an upright position? Because it was ballasted with a metre thick lining of cement on the bottom of the hull. It is a vivid reminder that life can often go horribly wrong, but if we have the right “ballast” – faith in Christ – then we can get through it and emerge upright on the other side. By the way, you can view photos of the amazing tug incident on at www.gcfl.net/stuff/tugboat/.
Source: information found at www.gcfl.net/stuff/tugboat/.