ANTI-NUCLEAR protesters blockaded AWE Aldermaston on Monday morning, causing long delays for hundreds of workers.
Police said that 33 of the estimated 150 campaigners had been arrested for blocking roads and gates leading to the weapons research plant.
Some locked themselves to concrete blocks or superglued themselves together in the road to cause maximum disruption.
Veteran campaigner Pat Arrowsmith, aged 78, repeatedly sat in the middle of the road leading to the main entrance of the site in an attempt to block employees from getting to work.
She sang protest songs as police read her rights to her.
Left wing and religious groups came from as far as Switzerland and Japan to join the protest.
The first protesters chained themselves together across the A340 Paices Hill road at 5:30am, closing the road to traffic. Despite a huge police operation, later blockades stopped traffic around the plant's main gate.
By 10am, traffic was still queued on the B3051 from the Tadley Calleva roundabout to the Pineapple pub between Brimpton and Ashford Hill.
The chair of the Campaign for Nuclear Disarmament, Kate Hudson, said the blockaders wanted to disrupt AWE workers from carrying out their jobs.
She said: “Local residents will be very aware that there's a massive acceleration in building here. Bigger facilities are being built, and we understand that this is the government putting the money in here to enable AWE Aldermaston to develop the next generation of nuclear weapons.
“We wish to hold up that process, slow it down and pressure the government to change its policy.”
Miss Arrowsmith, who organised the first anti-nuclear march to Aldermaston in 1958, said: “We want people to sit down and halt the work, hinder the traffic flow and stop the ghastly work on actually making these terrible weapons worse than they are.”
Chief Inspector Robbie Robbins, of the Ministry of Defence Police, said he had wanted to minimise the disruption around the plant.
He said: "Officers ensured that everyone who attended could exercise their right to engage in lawful protest, while at the same time making sure that members of the public could go about their normal day-to-day business."
AWE spokeswoman Philippa Kent said that the police had ensured the protest did not compromise the plant's security.
“Any breaches in criminal law will be dealt with in an appropriate and robust manner,” she said.

To view more pictures from the protest click on the link below.