This unique through truss bridge crosses Macoupin Creek south of Carrolton, Illinois.
The main truss is a large 7 Panel, Pin Connected Pratt Through Truss. This span was designed and fabricated by Lassig Bridge & Iron Works.
The bridge also has a unique feature. The lower connection for the vertical members contains a double pin connection, commonly seen in older truss spans.
The approach is a single deck girder span set on the north side. The concrete substructures were built in 1901.
The previous substructures are stone structures, which are considerably smaller than the large truss. It is unknown if, but is likely that the truss span was relocated from another area to this spot in 1901.
The author has ranked this bridge as being regionally significant, due to the unique truss span.
The photo above is an overview.