The distinctive sound of the Mackinaw Bridge is due to the grating in the two center lanes, one going each way. This grating allows air to pass through the bridge rather than pushing against it.
Part of the reason for this technology was the collapse of the Tacoma Narrows Bridge years earlier in Washington state.
-Visit us online at: Itshometownhistory.com
-Find us on all podcasting platforms: https://link.chtbl.com/hometownhistory
-Support our podcast by becoming a patron at: Patreon.com/itshometownhistory
-Check out our other podcasts: itsarclightmedia.com