Thames Barrier...

Unlike the Netherlands, which does an annual test of its major flood barriers, the Thames Barrier is closed monthly. On September 9, 2024, I ventured out to see the barrier from a different viewpoint than when we had first visited it in 2019. I took the DLR to Pontoon Dock Station and walked through Thames Barrier Park, which is on the north shore of the river. 

Presumably this sign is a remnant of COVID. 

There were several others hanging around to see if the test would actually happen.

If you look closely, you can see how what looks like a wooden wheel changes positions between photos...

…and the doors along the edges are obviously closed.

As much as I hope this barrier is never actually needed, it’s good to know that the system works.