Die Golden Gate Bridge, das Wahrzeichen der Stadt San Francisco
The San Francisco Bay is home to some of the most famous and magnificent bridges ever built, including the Golden Gate Bridge, San Francisco-Oakland Bay Bridge, Richmond-San Rafael Bridge, Hayward-San Mateo Bridge and the Dumbarton Bridge. Collectively, these five bridges represent a gamut of engineering structures and designs.It's no wonder, given the diverse geography they must span.
To the west of San Francisco sits the Pacific Ocean and due east through the strait of the Golden Gate lies the San Francisco Bay, extending 10 miles northeast to the San Pablo Bay entrance and 40 miles southeast into Palo Alto. At its greatest width the bay measures 13 miles with depths reaching over 200 feet, just inside the Golden Gate; yet, 70 percent of the bay is less than 12 feet deep. At points along the 50-mile length of the bay, five structures of engineering excellence, some considered impossible to build, span gracefully over 23 miles of the bay waters and allow travelers to visit San Francisco, the peninsula and the East Bay easily, quickly and safely.
Crossing the strait of the Golden Gate from San Francisco to the Marin headlands for 1.7 miles is the world-renowned Golden Gate Bridge, easily identified by its International Orange color.
Opened in 1937, the bridge was built at a cost of $33 million and 10 workers' lives. The single-suspension span is anchored off the shores of the bay by twin towers that reach skyward 750 feet, and was once taller than any building in San Francisco. To support the suspended roadway, two cables more than 7,000 feet in length, containing 70,000 miles of wire stretch over the top of the towers and are rooted in concrete piers on shore. Ten years in planning due to formidable opposition, but only four years in actual construction, the Golden Gate Bridge brought the communities of San Francisco and Marin county closer together.