The Golden Gate Bridge in San Francisco is nearly two miles orsathundreds of feet high, It's built to be long and strong, Under the waterits two tall towers stand firmly on the hard rock at the bottomeLong, thick steel cables hang over the two towers. They stretch frostsend of the bridge to the other. On land on each side of the bay, the calsare anchored into tons of heavy concrete so they do not sliat holds up the road and the car? Hundreds of smaller cabshang down from the strong main cables. They are bolted to the raadand hold it levelThe Golden Gate is called a suspension bridge. If you drapea rope with a weight hangingi from it over two chairs and pullyou can see how the main cables hold up the roadway