This swing bridge crosses the Mississippi River near Pigs Eye Island in South Saint Paul.
Originally built in 1910, the bridge has seen some alterations since original construction.
When originally built, the bridge consisted of a large through truss swing span, and a 7-panel, pin connected Pratt Through Truss. In addition, the bridge also had a number of deck girder approaches. The entire structure was set onto concrete substructures.
The bridge was upgraded in 1925, 1956 and 1982. Authorization for Expenditure (AFE) reports give a 1956 date for the rebuilding of the swing span, which had been undercut by flooding.
It is unknown why the original swing span was replaced, although flooding or a derailment are possibilities. Other alterations have occurred to the bridge, including the replacement of a pier damaged by a boat in 2017.
Currently, the bridge remains in service. Overall, it appears to be in good condition.
The author has ranked this bridge as being moderately significant, due to the truss design. A higher rating was withheld due to the lack of a historic swing span.
The photo above is an overview. The photo below is the portal on the approach truss. Unfortunately, the east approach is not currently accessible.
| Upstream | Robert Street Lift Bridge |
| Downstream | Rock Island Swing Bridge |
