[ghaff]

Yes, but you can pack the bridge more completely with people.[1] It's apparently an urban legend that the Golden Gate was in any danger of collapsing when people were allowed to walk on the roadway for its 50th anniversary--but it may well have been a peak load.

“It was probably the biggest load the bridge had ever seen,” said Mark Ketchum, a San Francisco bridge engineer who studied the Golden Gate Bridge from 1989 to 1991. “But it did not exceed the design load capacity of the bridge.”

[1] http://www.mercurynews.com/2012/05/23/the-day-the-golden-gat...