1. Sarah Lewandowski & Lianna Groeneveld
Golden Gate Bridge

2. Facts about the golden gate bridge
Total length: Including approaches, 1.7 feet
Middle span: 4,200 feet
Width: 90 feet
Clearance above the high water :220 feet

3. More facts Total weight today: 887,000 tons Towers:
746 feet above the water.
500 feet above the roadway.
Each leg is 33 x 54 feet
Towers weigh 44,000 tons each
There are about 600,000 rivets in EACH tower.

4. Facts cont.
The Golden Gate Bridge was the longest span in the world when it was finished, until the Verrazano Narrows Bridge was built in New York in Now,it still has the seventh longest main span in the world.
The Golden Gate Bridge connects San Francisco with Marin County .

5. Facts cont.
It is a 1.7 mile-long suspension bridge that can be crossed by car, on bicycles or by foot.
The Golden Gate Bridge is one of the most photographed, bridges in the world.
After 4 years of construction, the golden gate bridge was completed at a cost of $35 million, and was opened to traffic on May 28, 1937 at noon.

6. In comparison...
Golden Gate Bridge
Brooklyn Bridge
Brooklyn bridge is the oldest suspension bridge is in the U.S.
They both (the Brooklyn and the Golden Gate Bridge) were very dangerous when being built.
Both had huge opening celebrations.
Brooklyn use to have the longest span.
Over 1,200 people have commited suicide on the golden gate bridge since 1939.
Only 40 have commited suicide on the brooklyn

7. The Steps of building the golden gate bridge
The people voted weather or not to build the bridge.
Work on the bridge began on January 5, 1933. 
The south pier had to be built 1,100 feet from land in water 65 feet deep
Finished Pier, January 15, 1935
At each end of the bridge an anchorage was built to receive the two cables.

8. Steps continued
The first concrete of the bridge was poured January 19, 1937.
Just three months before opening day, a scaffold beneath the roadway broke loose, ripping through the net, making it fall into the water.
Opening Day, May 27, 1937

9. People who worked on the golden gate bridge
200 people worked on it
The engineer was Joseph B. Strauss
The Bridge was built by 10 different prime contractors and their subcontractors.
Eleven men died while working

10. Map

11. Sources http://gocalifornia.about.com/cs/sanfrancisco/a/ggbridge_3.htm

12. Picture sources