San Joaquin Valley Railroad

This mainline route was formerly known as Southern Pacific's "West Side Line" and at one time extended from Tracy, California and then south through the West side of the San Joaquin Valley (I-5 corridor) via Patterson, Gustine, Newman, Los Banos, Oxalis and then east to Fresno via Ingle and Kerman. California Northern Railroad now operates the northern section of the line from Tracy - Los Banos. SJVR operates the southern section of the line from Oxalis to Fresno and was at one time owned by Port Railroads, Inc. (PRI; also a Kyle subsidiary) and operated by the SJVR. On April 24, 1996 the PRI was merged into the SJVR. Both the PRI and SJVR were already Kyle Railway subsidiaries. The section of track between Los Banos and Oxalis was abandoned by Southern Pacific in 1993 and the tracks were removed soon after.

The Southern Pacific constructed the track from Tracy to Newman (37 miles) and from Los Banos to Armona (near Fresno) in 1891. Southern Pacific's overnight Owl passenger train (#57/58) operated over this line between San Francisco and Los Angeles into 1965.

In 2008, the Surface Transportation Board approved the abandonment of the section of track between Strathmore and Jovista. This left the communities of Strathmore, Porterville, Terra Bella, Ducor, and Richgrove without any rail service. Tulare County has recently broken off negotiations with the SJVR to purchase this section of track to preserve it for future use and possible reactivation. However, beginning in September 2010, the tracks were being removed by the SJVR and the job was completed with the entire line having been pulled up in mid November. The future of this line is very much in doubt and with the rails having now been removed, it's extremely unlikely that trains will ever traverse that corridor again. As of March 2015, the SJVR has embargoed the line with the rails spiked at the south end of Exeter with some crossing signals south already having been partially dismantled. This section of track, which runs approximately 8 miles to Lindsay is now pending formal abandonment whereupon the rails are expected to be immediately pulled up upon STB approval. The sections from Exeter to Dinuba along with former ATSF track between Lindsay and Exeter is expected to follow given their poor condition and lack of use.