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Projects : Golden Gate Bridge Exhibit

Golden Gate Bridge Outdoor Exhibition



When it’s foggy, visitors may not be able to see the Bridge, but in that case they get to hear the foghorns. An explanation of what they’re hearing: South Tower (single booming blast) and Midspan (double higher-pitched horn), each with its own rhythm/rate. Fog also tells the story of the Golden Gate’s influence on weather in the Bay Area.

STATUS: Interim exhibit currently installed near the flagpole area.

[read more about this exhibit]

Early version of the foghorn exhibit.

Layout design by Hunt Design

Detail of foghorn chart - showing the differences in timings from the South Tower and midspan.
Interim exhibit sign currently installed on site - last updated 5/17/12


Funding for the project has been provided by the Division of Research on Learning in Formal and Informal Settings, National Science Foundation. Dr. Al DeSena is the NSF project officer for this award. Any opinions, findings, conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation.

All images are the property of the Golden Gate Bridge, Highway and Transportation District and cannot be re-used without its permission. Contact Mary Currie, Public Affairs Director,

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Consortium of Universities for Research in Earthquake Engineering
last updated 05.27.14