About The Martinez subdivision is a Union Pacific railway line which runs from Roseville, California to Oakland, California. It is informally referred to as the Cal-P line, after the original California Pacific Railroad, who constructed the line from Sacramento to Suisun and Fairfield. (As such, the nickname may only apply to that segment.) The line is entirely double-tracked including bridges, and features extensive sidings. Originally built as a more direct route to the San Francisco Bay to compete with the Western Pacific Railroad, the Cal-P segment opened months prior to the First transcontinental railroad. California Pacific was taken over by the Central Pacific, which in late 1879 completed the line from Suisun-Fairfield to Oakland via the train ferry Solano from Benicia to Port Costa. The present double-track lift bridge across the Carquinez Strait replaced the train ferry in 1930. The California Pacific became part of the Southern Pacific Railroad (SP) which in the 1990s merged into the Union Pacific Railroad, the line's current owner. The subdivision forms part of the modern Overland Route. Rollingstock (not sure if all ran on this line) Alco PA Baldwin AS-616 Fairbanks-Morse H-12-44 Fairbanks-Morse H-24-66 GE U25B GE U30C GE U33C GE B30-7 GE B36-7 GE B39-8 GE B40-8 GE C44-9W GE AC4400CW
EMD E9 EMD FP7 EMD NW2 EMD SW1 EMD SW8 EMD SW900 EMD SW1200 EMD SW1500 EMD GP9/ GP9R EMD GP20 EMD GP38-2 EMD GP40-2 EMD GP60 EMD SD7/ SD7R EMD SD9/ SD9E EMD SD40R
Only way this route comes is in the modern era with Union Pacific and Amtrak California, there is no way they'll do it in the SP era.
SP's small number of unique SD45Xs (6 units) handled freight trains out of Roseville in the 1970s, so those could be a possibility, too. The SP RR is one of my favorite railroads, and should be added to TSW4.
