What is the life expectancy of the Golden Gate Bridge?

The Golden Gate Bridge is closely monitored to make sure it does not exceed its stress limits due to traffic, wind and seismic loads. We can look forward to at least another 80 years of this engineering masterpiece.



People Also Ask

There are a couple of misconceptions about how often the Bridge is painted. Some say once every seven years, others say from end to end each year. The truth is that the Bridge is painted continuously. Painting the Bridge is an ongoing task and a primary maintenance job.

MORE DETAILS

July 26, 2018 Updated: July 27, 2018 4:47 p.m. Three months after engineers descended on rope from tower to tower on the Golden Gate Bridge as part of a federally regulated bridge biannual inspection, the inspection results are in: The bridge is structurally sound, but needs a paint job and cosmetic work.

MORE DETAILS

According to the book The World Without Us by Alan Weisman, suspension and truss bridges would collapse after two or three centuries without maintenance. The cause would be rust eventually filling the expansion joints, causing damage during hot weather.

MORE DETAILS

Swaying in the wind The Golden Gate Bridge takes about 20 seconds to complete one back-and-forth swing.

MORE DETAILS

With the earlier phases of the retrofit complete, the bridge can safely withstand an earthquake over 7.0 in magnitude, but it may experience damage that requires closure after a major seismic event.

MORE DETAILS

5 Fun Facts About the Golden Gate Bridge
  • The bridge is actually not golden at all! It's a bright red-orange.
  • It was named one of the Seven Wonders of the Modern World.
  • It took four years to build.
  • There are approximately 600,000 rivets in each of the bridge's towers.
  • It's the most photographed bridge in the world.


MORE DETAILS

The forces carried down through the steel towers are resisted by the strength of the concrete foundations, which extend into bedrock. The pulling or tension forces in the cables are resisted by the massive concrete anchorages at both ends of the Bridge, and those anchorages are also embedded in bedrock.

MORE DETAILS

The Golden Gate Bridge, Highway and Transportation District is a special-purpose district that owns and operates three regional transportation assets in the San Francisco Bay Area: the iconic Golden Gate Bridge, the Golden Gate Ferry system and the Golden Gate Transit system.

MORE DETAILS

Want to swim over the deepest part of the bay? Maybe you've already done it and had no idea - you'll find the deepest water in our Golden Gate Bridge race just under the bridge at over 370 feet.

MORE DETAILS

The Golden Gate Bridge is closely monitored to make sure it does not exceed its stress limits due to traffic, wind and seismic loads. We can look forward to at least another 80 years of this engineering masterpiece. (Top image: Courtesy Getty Images.)

MORE DETAILS

The name has nothing to do with its color While it's obvious today that the name isn't related to its color, many tourists assume that it was once gold. In fact, according to the website, “The term Golden Gate refers to the Golden Gate Strait which is the entrance to the San Francisco Bay from the Pacific Ocean.

MORE DETAILS

In Ward's simulations, the wave reaches a maximum height of about 30 feet. “That's barely to the top the pylon,” says Ward, who is confident that the bridge would have no trouble withstanding the wave energy. “It probably wouldn't even touch the steel.”

MORE DETAILS

What is a weakness of the Golden Gate Bridge? They can be unstable in extremely turbulent conditions, requiring temporary closure of the bridge. Suspension bridges are built to move, and high wind can cause damage to the bridge.

MORE DETAILS