Thames Barrier closes for annual test ahead of 200th operational closure

The video discusses the threat of tidal flooding in central London and the role of the Thames Barrier in mitigating this risk. The barrier, located at Charlton, spans 520 meters across the river and prevents incoming tides from moving upriver. Historically, London has faced flooding threats, but the Thames Barrier and associated defenses have significantly reduced this risk. The barrier has been closed 199 times for flood defense, with a total of 613 closures including tests.

What is the primary purpose of the Thames Barrier?

• To protect central London from tidal flooding

• To generate electricity

• To provide a tourist attraction

• To improve water quality in the Thames

Where is the Thames Barrier located?

• Richmond

• Westminster

• Charlton

• Greenwich

How wide is the Thames Barrier at Charlton?

• 320 meters

• 420 meters

• 520 meters

• 620 meters

How many times has the Thames Barrier been closed for flood defense purposes?

• 299 times

• 199 times

• 399 times

• 99 times

Including test closures, how many total times has the Thames Barrier been closed?

• Over 713 times

• Over 413 times

• Over 513 times

• Over 613 times