The Western Pacific Railroad was a Class I railroad in the United States. It was formed in 1903 as an attempt to break the near-monopoly the Southern Pacific Railroad had on rail service into northern California. WP's Feather River Route directly competed with SP's portion of the Overland Route for rail traffic between Salt Lake City/Ogden, Utah, and Oakland, California, for nearly 80 years. The Western Pacific was one of the original operators of the California Zephyr passenger line. In 1982, the Western Pacific was acquired by the Union Pacific Corporation and it was soon merged into their Union Pacific Railroad. History The original Western Pacific Railroad (1862–1870) was established in 1862 to build the westernmost portion of the first transcontinental railroad, between Sacramento and San Jose, California (later to Oakland). After completing the last link from Sacramento to Oakland, this company was absorbed into the Central Pacific Railroad in 1870. The second company to use the "western pacific" appellation was the Western Pacific Railway Company, founded 1903. Under the direction of George Jay Gould I, the Western Pacific Railway proposed to build a standard gauge track connection to the Pacific Coast for his aspiring Gould transcontinental system. Construction was financed by the Denver and Rio Grande Western Railroad, a company in the Gould system, which had lost access to California due to the attempted acquisition of the Southern Pacific Railroad by the Rio Grande's main rival, the Union Pacific Railroad. The Western Pacific Railway acquired the Alameda and San Joaquin Railroad and began construction on what became known as the Feather River Route. Completed in 1909, it was the last major rail line connected into California. After Western Pacific Railway Company defaulted on mortgage bonds, its assets were sold in 1916 to The Western Pacific Railroad Company. The original line used 85 lb/yd rail on untreated ties, with no tie plates except on curves over one degree; in 1935 more than half of the main line still had its original rail, most of it having carried 150 million gross tons. In 1931 Western Pacific opened a main line north from the Feather River Canyon to the Great Northern Railway in northern California. This route, today part of BNSF's Gateway Subdivision, joined the Oakland – Salt Lake City main line at the Keddie Wye, a unique combination of two steel trestles and a tunnel forming a triangle of intersecting track.