Changes

</blockquote>

</blockquote>

The bridge is built of fabricated [[steel]], and is painted with an orange color that protects the Bridge's steel components from rust and corrosion caused by the high salt content in the air from the Pacific Ocean.<ref>http://goldengatebridge.org/</ref> The construction of the bridge took four years to complete (Jan 1933 - May 1937) at a cost of $35 million dollars.<ref>http://www.inetours.com/Pages/SFNbrhds/Golden_Gate_Bridge.html</ref>

The bridge is built of fabricated [[steel]], and is painted with an orange color that protects the Bridge's steel components from rust and corrosion caused by the high salt content in the air from the Pacific Ocean.<ref>http://goldengatebridge.org/</ref> The construction of the bridge took four years to complete (Jan 1933 - May 1937) at a cost of $35 million.<ref>http://www.inetours.com/Pages/SFNbrhds/Golden_Gate_Bridge.html</ref>

The 6 traffic lanes of the bridge are located on one level, and have  

The 6 traffic lanes of the bridge are located on one level, and have  

Construction began in August 1997 and is tentatively scheduled to be  

Construction began in August 1997 and is tentatively scheduled to be  

completed by 2014. The retrofit project is currently (as of March 2013) in Phase 3, the final phase of construction.<ref>http://goldengatebridge.org/projects/retrofit.php</ref> The total cost of the retrofit is estimated to be  

completed by 2014. The retrofit project is currently (as of March 2013) in Phase 3, the final phase of construction.<ref>http://goldengatebridge.org/projects/retrofit.php</ref> The total cost of the retrofit is estimated to be  

around $405 million dollars. Once completed, the bridge should be able to withstand an 8.3 magnitude earthquake.<ref>http://goldengate.org/news/bridge/GGBSeismicStatusApr2006.php  

around $405 million. Once completed, the bridge should be able to withstand an 8.3 magnitude earthquake.<ref>http://goldengate.org/news/bridge/GGBSeismicStatusApr2006.php  

</ref>

</ref>