> the use of the broad gauge “goes back to when BART was planned to go across the lower deck of the Golden Gate Bridge,” he told BART recently. The Golden Gate

> the use of the broad gauge “goes back to when BART was planned to go across the lower deck of the Golden Gate Bridge,” he told BART recently. The Golden Gate Bridge has a lower deck? edit: Looks like it was only planned but never came to together https://www.sfgate.com/bayarea/article/Golden-Gate-Bridge-lower-deck-Images-from-all-8902589.php https://www.sfgate.com/bayarea/article/Golden-Gate-Bridge-lo...