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Longest Suspension Bridge, anchorage to anchorage, in the World - connecting Michigan's two peninsulas - opened to traffic Nov. 1, 1957. Facts: Total Length of Superstructure - 19,205 ft. Total Length of Suspension Bridge - 8,614 ft. Length of Main Span - 3,800 ft. Length of Bridge and Approaches 26,444 ft. Height of Towers above 552 ft. Depth of Tower Piers Below Water - 206 ft. Clearance for Ships at Center - 148 Ft. Width of Roadway - 48 ft. Main Cables - 2; diameter - 24� in. Estimated Weight of superstructure 76,300 tons cost - $96,400,033.33. |
