Uddevallabon Ramona Byrö has a special relationship with the bridge which she describes as "fantastically beautiful". From her bedroom window she has a direct view of the pillars. At eight o'clock on Wednesday evening, Ramona responded that the light from the bridge was different. Something that P4 West was the first to report on.

- I thought it might have been a thunderstorm the day before that broke something so it started to blink wildly, says Ramona Byrö.

No safety hazard

But it was not the weather forces that made up for it, but a lack of the Swedish Transport Administration's techniques. They had moved out to replace computer switches and in connection with that the decoration lighting was turned off. When it started again, it went into another mode where the colors change at an interval of a few seconds.

- Those who were there didn't think it was wrong, says Magnus Berndtsson, lighting manager at the Swedish Transport Administration in Västra götaland.

"Yellow to Easter maybe"

The film of the "mistake" with the colorful Uddevalla bridge has been shared in social media and Berndtsson rather thinks it is to be considered a "luck throw".

- I understand that many people have liked this and expressed themselves positively, says Magnus Berndtsson at the Swedish Transport Administration, pointing out that the current lighting is not a safety hazard for motorists.

The error has not yet been rectified, but will be rectified, probably during Friday.

Can this lighting be something that will be used in the future on special occasions?

- Yes, there is the possibility of pure light technology. Yellow to Easter maybe, says Magnus Berndtsson at the Swedish Transport Administration with a twinkle in his eye.

Start the clip above to see Uddevallabron in disco play.