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3/4 View From Southwest Photo by Joe Elliott, Summer 1995, for HAER |
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Barrel View From South Photo by Joe Elliott, Summer 1995, for HAER |
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Barrel View, Mid Span, From South Photo by Joe Elliott, Summer 1995, for HAER |
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Elevation Of Truss Panels, From West Photo by Joe Elliott, Summer 1995, for HAER |
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Details Of Top Connections, From Northwest Photo by Joe Elliott, Summer 1995, for HAER |
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Details Of Top End Connections, From Southwest Photo by Joe Elliott, Summer 1995, for HAER |
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Details Of Bottom Connections, From Southwest Photo by Joe Elliott, Summer 1995, for HAER |
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Details Of Bottom Connections, From Below, From Southwest Photo by Joe Elliott, Summer 1995, for HAER |
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Bearing Plate At Southwest Corner, From Northwest Photo by Joe Elliott, Summer 1995, for HAER |
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Underside, From South Photo by Joe Elliott, Summer 1995, for HAER |
This bridge is a remaining span of a seven-span approach bridge built in 1872 to serve a larger seven-span bridge built in 1868 over the Mississippi River at Dubuque. The larger bridge was the first to span the Mississippi at Dubuque, and was one of the earliest of all Mississippi River bridges. The superstructures of both the approach bridge and the river bridge were fabricated and erected by the Keystone Bridge Company, one of the most important and long-lived bridge companies of the nineteenth century. This span is one of the oldest iron trusses still in use in Iowa, and is the only Keystone truss known to be in use in the state.