Lost/CSX/L&N/Monon over Wabash River at Delphi, IN

1949 Steel Girder Bridge: (Bridge Hunter; no Historic Bridges; Satellite, even the piers were removed)
1897 Truss Bridge: (Bridge Hunter)
ca. 1852 Wood then metal, Crawfordsville & Wabash Railroad: (Bridge Hunter)

1949

Indiana Historical Bureau posted

On January 11, 1956, the Chicago, Indianapolis and Louisville Railroad officially adopted the "Monon" Railroad name. According to Traces of Indiana and Midwestern History, the line became one of the US's first entirely dieselized railroads and was one of the most used railroads in Indiana during the Civil War due to its alignment with the directional pattern of the war.

Learn more about the Monon Railroad with this issue of Traces: http://bit.ly/39rhvSM

The image below is courtesy of Wikimedia Commons.

Jeffrey Kennan The image was created by famed artist Howard Fogg.
Howard was also a WW2 fighter pilot
" he flew 76 combat missions in P-47 Thunderbolts and P-51 Mustangs and was awarded the Air Medal with three clusters and the Distinguished Flying Cross with one cluster."
Https://en.m.wikipedia.org/wiki/Howard_L._Fogg

Bob Pooringa shared
[Bridge Hunter also has this image.]

I didn't notice that they added concrete piers between the stone piers until I saw this photo. I assume the concrete piers were added in 1949 when the replaced the truss spans with steel girders.

Photo taken in 1949 (courtesy of Mahlon Eberhard) via Bridge Hunter

Photo taken ca. 1990 (courtesy of Carroll County Historical Museum) via Bridge Hunter

Abandoned RR Map

1897

Postcard courtesy of Carroll County Historical Museum via Bridge HunterCirca 1920

Photo taken ca. 1949 (courtesy of Mahlon Eberhard) via Bridge Hunter
Note new piers under construction. Soon these trusses would be replaced with a new bridge.
[Confirmation of my theory that the concrete piers were added when they replaced truss spans with girder spans.]

1852

Photo courtesy of Carroll County Historical Museum via Bridge Hunter
It appears that most of the wooden Lattice spans have been replaced with steel Pratt truss spans.

Photo courtesy of Carroll County Historical Museum via Bridge Hunter1890 Train wreck in which the approach collapsed.