Main Street Bridge (1899)

I tried to decipher some of the history of this crossing but there still looks to be some mystery, see comments below. It appears that this bridge was originally built as three spans, then expanded to six shortly afterward, judging from the fact that the later three Parkers appear stylistically identical to the first two. Additionally, the Pratt end span looks like it may be older than the Parkers. I did find mention of the preceding covered bridge partially burning a few years before 1899 so maybe the Pratt was a leftover from that structure.

Also, one thing I am sure about is that photo 1 is NOT of this bridge.

There definitely looks to be a lot of history at this crossing, with possibly several bridges or several variations on the same bridge having existed here. The photos in the link below are said to be of a bridge on East Main Street that was built in 1899 and apparently redecked in 1915. However, it appears to show a multi-span Pennsylvania through truss bridge with riveted connections, while the other photos on this page are of pin-connected Parkers.

https://rosscounty.pastperfectonline.com/photo/106B347A-EF63...

That said, my thoughts on the photos already on this page are as follows: The two polygonal through truss spans in photo 3 appear to be the same design as the spans in photo 2 (same number of panels, same portal design, etc). Possibly when the bridge in photo 3 was built the Scioto River was narrow enough to be crossed with three spans, and later a natural disaster (I'm thinking 1913 flood here) widened the river enough that it then required 6+ spans afterward? Satellite view does seem to show a lot of low-lying, semi-underwater land on the west side of the main river channel. So now the question is, did the Pennsylvania truss replace the bridge in photos 2 and 3? Or are some of these photos mis-labeled?

Photo #1 in my opinion is not of this bridge. It is a Parker truss, not a Pennsylvania, so it definitely does not show the same bridge as the photos in the link. The portal and sway bracing designs also differ from the other photos on this page, and the piers appear to be concrete as well.

Photo #4 I believe is the same bridge as in photo #2/possibly photo 3.

The two bridge photos on this page seem different. Also, Aaron Turner sent me this photo of yet another mystery Scioto River Bridge a while back, not sure where it was.