Boisterous street celebrations broke out across Seattle in the wake of the Seahawks lopsided Super Bowl victory, as fans took over intersections, lit fireworks, smashed Champagne bottles and started bonfires on Greek Row near the University of Washington campus.

Police described the celebrations as joyful and mostly peaceful.

But at least one person was arrested in the University District, where students dragged couches into the middle of the street and set them on fire before Seattle police finally cut the party short.

In Occidental Square, panes of glass were smashed on the pergola when fans climbed on the century-old structure. There were reports of vandals stealing street signs near Pioneer Square.

Thousands of people were still celebrating late into the evening, as Seattle police monitored the gatherings.

The street parties began immediately after the game, when Pioneer Square quickly filled with chanting, dancing fans, and drivers blasted their horns in celebration of the Seahawks’ first NFL championship.

“I’ve been waiting all my life for this,” said Kim Jorgensen of Normandy Park, who attended the very first Seahawks game, when he was 12. “Now I’ll die a happy man.”

Fans leaned out of car windows waving 12th Man flags at Occidental Avenue South and South King Street, and crowds streamed up the middle of the street, high-fiving strangers and screaming for joy.

Marcus Reed joined jubilant Seahawks fans in Occidental Square, which became a sea of blue jerseys after the game.

“I’m on Cloud 9 right now,” Reed said. “It was a hell of a game!”

Hundreds of people gathered at 11th and Pike on Capitol Hill. An electric guitarist came out on the street to play, and the smell of marijuana wafted through the air.

For 3½ hours, fans across the region gathered around TVs in bars, living rooms and coffee shops, watching in amazement, then delight, as the first-half shutout turned into a second-half rout.

“I don’t even know how to feel — I’ve never experienced this before,” said Jonah Bergman, 32, of Seattle, outside the 95 Slide bar on Capitol Hill after the game. “I kind of feel the urge to flip over that car, but I’m too passive-aggressive to do it.”

Spencer Harwood made the trip down from Vancouver, B.C., with three friends, watching with a packed crowd at F.X. McRory’s in Pioneer Square.

“All of Vancouver is part of the 12th Man,” he said. “We’re so proud and happy!”

Lisa Beyer, a Kirkland native, traveled from Pittsburgh with her husband Joe, a Seattle native, to watch the game. At the sports bar Fuel in Pioneer Square, she said, “I wanted to be in my hometown for the game. There’s nowhere else I want to be.”

At Hilliard’s Brewery in Ballard, where brewers created the 12th Can brew in honor of the Seahawks, taproom manager Stephen Peterson occasionally led the room in a call-and-response cheer: “Sea — Hawks! Sea — Hawks!”

After halftime, when the Seahawks ran the kickoff back for a touchdown, the brewery erupted in earsplitting celebration, and people hugged each other and pumped their fists in the air.

Sam Tek of Seattle, wearing a No. 29 Earl Thomas jersey, said many fans still remembered the defeat of the Seahawks’ only other Super Bowl appearance, a loss to the Pittsburgh Steelers in 2006 that many blamed on bad calls by the officials.

“In ‘06 we were cheated,” Tek said. “This is making up for ‘06. The city needed this.”

Seattle Times staff reporter Paige Cornwell contributed to this article.

Information in this article, originally published Feb. 2, 2014, was corrected Feb. 3, 2014. A previous version of this story gave the incorrect first name of Seahawks fan Kim Jorgensen of Normandy Park.