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6th Street Viaduct Milwaukee, Wisconsin Cable Stayed Bridge Components
AMECO USA manufactured the cable stayed bridge components for the 6th Street Viaduct in Milwaukee Wisconsin.
The Sixth Street Viaduct project is located through the Menomonee Valley in Milwaukee, Wisconsin. This was a $50 million Design-Build project awarded to the joint venture group Milwaukee Gateway Partners, composed of Lunda Construction Company, Zenith Tech, and HNTB. The previous 2,780-foot viaduct traversed the North Canal of the Menomonee River, South Menomonee Canal, five local streets, and nine Railroad tracks located at three separate locations.
The cable stayed bridge has overall lengths of 574 and 665 feet. A pair of 142-foot high inclined concrete pylons supports the mainspans, with lengths exceeding 190 feet. These structures have transverse widths varying from 81 to 96 feet. The structures are supported on over 50,000 feet of piling with a large portion being high capacity 12-inch diameter cast-in-place piles, some reaching 185 ton bearing.
The typical non-engineer or bridge designer would probably consider cable stay and suspension bridges the same. On the other hand only the huge towers and the roadway that is suspended from cables are the same. In other words they may look the same, but they act and work entirely different ways.
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