The Oregon Central Rail Road was the name of two railroad companies in the U.S. state of Oregon, each of which claimed federal land grants that had been assigned to the state in 1866 to assist in building a line from Portland south into California. The "East Side Company" of Salem (incorporated 1867), supported by businessman Ben Holladay, eventually received the grant for its line east of the Willamette River, and was reorganized in 1870 as the Oregon and California Railroad (O&C), which completed the line in 1887. Portland supported the competing "West Side Company" (incorporated 1866), which only built to McMinnville, and was sold to the O&C in 1880. The O&C was later acquired by the Southern Pacific Company, and mostly remains as part of the Union Pacific Railroad's I-5 Corridor; the West Side line is now operated by the Portland and Western Railroad between Beaverton and Forest Grove.