Tony
This span looks similar to the three camelbacks that made up the former Hopkins Street bridge in my hometown. I plan on going to my public library and ask for permission then scan and post pictures of that bridge. The Hopkins Street bridge was built in 1914 after the great flood of 1913 took out it's iron predecessor. The camelback pratt truss lasted to 1982 when gusset plates below the deck of the center span doomed it. It was removed the fall of 1983. A concrete replacement span opened in 1984.
This bridge was restored in recent years. It was erected by the Burk Construction Co. of New Castle, IN and the trusses were likely manufactured by the Pan American Bridge Co. also of New Castle. It is a Parker Thru Truss.
Webmaster's note: The photo that was here has been incorporated into the main site.
This is my favorite bridge of all the ones this site has led me to! I think this picture does a little bit more justice to the actual structure of the bridge