Ever since the Golden Gate Bridge got a retrofit of a sidewalk safety rail last year, the structure has been humming.
The hum was first reported publicly on Saturday and commuters have gotten recordings of the hum. It’s believed the narrower walkway salts, though safer, make noise when the wind whips up.
The noise can be heard as far away as 10 miles from the span. Some people are getting used to it and adding the sound to their meditation rituals. That may not last for long, though, since engineers are working with a wind tunnel to find a fix for the Golden Gate hum.
Source: NBC Washington DC