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Tower Bridge is raised to allow large ships to sail up the Thames.

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14y ago
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13y ago

If the boat is tall, it can get passed safely, without damaging the bridge.

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13y ago

Electro hydraulic drive system in the 2 beams of the bridge enable it to open

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Q: Why does the tower bridge always open when a boat comes?
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How does the London bridge know to open when a boat comes through?

London Bridge isn't an opening bridge. The only bridge in London which spans the river Thames and can open, is Tower Bridge. If a boat needs to have the bridge opened so that it can pass underneath, it has to book a slot in advance with the bridgemaster who will arrange to open the bridge at the agreed time.


What did the tower bridge replace?

There wasn't a bridge on the site - just a ferryman with a rowing boat.


Why can't a tall boat go any further up the Thames than tower bridge?

Because Tower Bridge is the only bridge to open to allow tallish boats to pass through it.


A man is standing on a bridge and he sees a boat full of people go under the bridge He goes to the other side of the bridge but when the boat comes out he can't see a single person Why?

They are all couples


Is it legal to tie a boat to a bridge in NC?

Yes it is legal to tie your boat up to a bridge in NC. My friend and I go sheepshead fishing alot and always tie up to the bridge.


What is so special about the tower bridge in London?

There isn't another bridge anywhere else in the world that looks anything like Tower Bridge so it is instantly recognisable. It is the only bridge over the river Thames that can be raised to allow tall-masted boats to pass under it. It is still possible for pedestrians to cross the bridge, even when it is 'open' to allow a boat to pass underneath.


Is true that any kind of boat can pass under the tower bridge?

No. Modern ships are so big that they would be too tall and too wide to pass through Tower Bridge and even if they could, they would be too big to turn round to get back again.


When was Last Boat to Folly Bridge created?

Last Boat to Folly Bridge was created in 1970.


How do you get on the island with the pipe with Yoshi on super Mario sunshine?

You have to start at the dock on the main island and jump on the boat that comes into the dock and goes to the island with the coconut-loving pianta. Get on that island and wait for the next boat, which goes from that island to a big tower with a banana on it, but make sure to eat a coconut right before you get on the second boat. Get off on the tower and go to the island with the pipe after eating the banana on the third boat.


What is the duration of When the Boat Comes In?

The duration of When the Boat Comes In is 3000.0 seconds.


While walking across a bridge I saw a boat full of people?

If you are asking: I walk across a bridge and see a boat full of people yet there isn't a single person on the boat. How is this? The answer is, "All the people on the boat are married."


What is the control center of a boat called?

the bridge.