What happened to the earth and clay etc removed from the London Underground when it was built?

Question

What happened to the earth and clay etc removed from the London Underground when it was built?

Answer 1

Most of the underground was dug during the reign of Queen Victoria.

A lot of the clay was used to make the bricks that built the buildings,including the train stations during the same period.

Answer 2

They dug another tunnel and put it in there...

Answer 3

Shortly after the opening of the Thames Tunnel, Parliament authorized construction of the first subway system in the world, the London Underground. Work began in 1860 on the first stretch of the underground subway, the Metropolitan Railway. By all accounts, it was a royal mess. Tunnel diggers used the cut and cover method: they carved huge trenches in the streets, lined the trenches with brick, covered the trenches with arch roofs, and then restored the street above. This sloppy method paralyzed traffic and made canyons out of city avenues, but it was a huge success. The new subway carried more than nine million people in its first year!

Soon, Londoners were craving more, and they got it. This time, with the help of James Henry Greathead's tunnel shield, London engineers could tunnel under the city without completely destroying the streets above. Greathead's round iron shield supported the soft soil as it moved forward and carved a perfectly round hole hundreds of feet below London's bustling city streets. Inside the shield, tunnel workers laid cast-iron segments end to end. These segments eventually formed a stiff, waterproof tube, perfect for subways. Following London's lead, New York, Boston, Budapest, and Paris soon boasted subways of their own.

Answer 4

It was put into the Thames

Answer 5

As the system was not all built at once but in stages, the waste earth was used for different things. here is some examples

The earth used to make the district line was used to make the Victoria embankment along the Thames.

The recent earth from the tunneling for the CTRL link to kings cross was used to level of the land at Stratford for the Olympic site. another use for the waste earth is coastal defenses.

Answer 6

It was shipped downriver and piled it up in Rainham Marshes and Thurrock

Answer 7

My brother ate it. Every bit. Clean plate.

So now you know.

Answer 8

In an island you would want to claim more land from the sea.  They do this in Singapore all the time.

Answer 9

They used it to make Chelsea's football pitch.