Indiana Southwestern Railway (reporting mark ISW) is a subsidiary of Pioneer Railcorp, operator of several short-line railroad companies.
That track is currently out of service but switching still occurs in ISW's yard and surrounding industries.
The bridge suffered damage from floods on more than one occasion, and one span finally collapsed completely around 1999.
However, when Pioneer stopped shipping grain, the track had to be dismantled and salvaged at the close of 2011.
[1] Only the small stretch from the interchange northwest of Evansville to just north of their yard is still used, a distance of about 4 miles.