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This bridge is in general a traditional example of a multi-span rivet-connected through truss. However it is configured unusually since each span is a little different. Details observed are as follows.
Southwest Span:
This bridge has six panels and about a 130 foot span. Key details to note in the design of the bridges beams include the top chord and end post which have flanges facing inward giving those beams a flat
exterior appearance with gusset plates that are nearly flush with the top chord and end post. (strut) portion. Finally, note that the diagonal members and vertical members all feature lattice.
Middle Span:
Like the southwest span, this bridge has six panels and about a 130 foot span. However the composition of beams is different. The diagonal members and vertical members all feature v-lacing instead of
lattice. Moreover, the hip vertical and end diagonals have neither v-lacing or lattice.
6 panels. Also, unlike the southwest span, the top chord and end post have flanges that face outward, which visually give the gussett plates a
recessed appearance.
Northeast Span:
Even though traditionally the central span is the largest span on a multi-span bridge, that is not the case here. The northeast span is larger than the other two and consists of 8 panels providing a 170
foot span. This span has a top chord and end post matching the middle span. However the vertical members and diagonal members differ because none of them have any v-lacing or lattice.
It is not surprising that the longer span might have details that differ from a shorter span. However, the southwest and middle spans have the same span length, so the difference in details is unusual. It is unclear what the story is here. The National bridge Inventory gives a rehabilitation date of 1944, less than 20 years after the 1929 construction date. Perhaps in 1944 one of the spans (likely the southwest span) was destroyed in some disaster and replaced? It is unclear.
Coordinates (Latitude, Longitude):
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