Depending on wind speed, residents of the city can hear two distinct hums: one high-pitched, and one low. Some say it sounds like beautiful music. For others, the constant noise is torture. “We want to be good neighbors,” says Paolo Cosulich-Schwartz, spokesperson for the bridge, so engineers set out to put a stop to the sound.
After testing a full-size model of the bridge’s railing in a massive wind tunnel, they came up with a solution: two U-shaped clips and a rubber sleeve, applied to each of the 12,000 slats. The project—which is set to be completed by the end of 2022—will minimize air vibrations, stopping the hum.