Tower Bridge lifts to let in vessels in and out of the upper pool of London.
Tower Bridge may lift up to ten times a day during the busy period. All in all, it lifts around 800 times a year.
It is completely free to open Tower Bridge. The lifts are funded by the Bridge House Estates. However, you will need to own a large vessel and provide a written notice at least 24 hours in advance.
The first ship passed through the Tower Bridge the year it was opened, 1894.
You have to purchase admission tickets to the walkway and if the Tower Bridge happens to lift when you are visiting, you will be able to see the lift.
There are no specific lift timings. The slots are allotted as per the booking request.