The Great Stink and London's Sewers
In the summer of 1858, the city of London was hit by a smell so awful that people called it the Great Stink. The cause was the River Thames. For years, homes and factories had sent their waste into the river, and the city had grown so large that the water could no longer carry it all away. When a long spell of hot weather arrived, the stench rose over the whole city.
The smell was bad enough to trouble the lawmakers, because the Parliament building stood right beside the river. Many people also knew that dirty water could spread sickness, so the problem could not wait any longer. Within weeks, Parliament agreed to pay for a new plan.
An engineer named Joseph Bazalgette had already designed it. Instead of letting waste flow into the Thames in the middle of the city, his system caught it in a network of brick sewers. These tunnels sloped gently downhill and carried the waste east, past the built-up streets, before releasing it into the river where the tide could sweep it out to sea. In places where the land was too flat, steam-powered pumps lifted the waste and sent it on its way.
The work took years, and the crews laid enormous numbers of bricks. When the job was done, the river in the city grew cleaner, and serious outbreaks of disease became less common. Many of Bazalgette's sewers still serve London today.