The Ambitious Engineering Behind the Golden Gate Bridge

As many as a million people crossed the Golden Gate Bridge on foot to celebrate the 50th anniversary of its construction in 1987. More than a few of them would have remembered San Francisco as it was before it had its most iconic structure — and indeed, some would even remember walking across it once before, on its inaugural “Pedestrian Day” in 1937. Barring the possibility of unusually vigorous supercentenarians, that won’t be the case 12 years from now, on the Golden Ga