A Flood of Molasses On this day, back in 1919, 21 people died and 150 were injured due to a "sticky" situation. A five-story tank of molasses broke in Boston. Molasses spilled out at 35 miles per hour and covered everything around. The total damage was $100,000,000. Can you imagine looking up to see a 15 foot wave of molasses heading towards you? I would have thought I was dreaming.