London's Tower Bridge reopens to traffic after being stuck
Pedestrians walk in the rain by the River Thames as Tower Bridge is stuck in an open position due to a technical fault, in central London.–AFP
The bridge reopened to traffic at 01:45 BST (0045 GMT) on Tuesday, according to the BBC.
The bridge connects the Square Mile financial district to Southwark across the River Thames, and its closure caused long queues to build up on either side of the crossing.
Built between 1886 and 1894, the landmark was at the time considered "the largest and most sophisticated bascule bridge ever completed", according to its website.
The bascules -- the word for the bridge's arms, derived from the French word for "seesaw" -- move up and down via four large cogs on each side. The cogs were initially powered by steam before an electro-hydraulic system was installed in the 1970s.
The bridge normally lifts around 800 times a year.
In August 2020, it remained stuck for over an hour, causing traffic to become deadlocked in the surrounding areas.