A pictorial guide to the River Thames

How the Thames Barrier Works

The barrier is a series of ten separate rotating gates positioned end-to-end across the river.

Each gate is attached to concrete piers that house the operating equipment.

When there are high tides, with high waves caused by storms, the gates are lifted to stop water travelling up the Thames estuary.

The gate lies below the river bed.


The gate turns to prevent water passing through

Small amount of water is allowed through
The gate is on top allowing water through but not ships.

Start of Voyage down the Thames Contents Page Introduction
Facts about the Thames Flooding Thames Basin
Pollution Erosion Tributaries
email© Copyright - please read
All the materials on these pages are free for homework and classroom use only. You may not redistribute, sell or place the content of this page on any other website or blog without written permission from the author Mandy Barrow.

©Copyright Mandy Barrow 2013

Follow me on Twitter @mbarrow


I teach computers at The Granville School and St. John's Primary School in Sevenoaks Kent.