Central Corridor (Union Pacific Railroad)

Central Corridor
A BNSF Railway freight train passes the Gross Dam on the Moffat Tunnel Subdivision
Operation
Owner	Union Pacific Railroad
Technical
Track gauge	1,435 mm (4 ft 8 1⁄2 in) standard gauge

The Central Corridor is a rail line operated by the Union Pacific Railroad from near Winnemucca, Nevada to Denver, Colorado in the western United States. The line was created after the merger with the Southern Pacific Transportation Company by combining portions of lines built by former competitors. No portion of the line was originally built by the Union Pacific; in fact, some portions were built specifically to compete with the Union Pacific's Overland Route. The line is known for significant feats of engineering while crossing the Wasatch Mountains of Utah and the Rocky Mountains of Colorado. The line features numerous tunnels, the longest and highest of these is the Moffat Tunnel.

The line is primarily used for freight by the Union Pacific. The BNSF Railway has trackage rights on the entire line; the Utah Railway has trackage rights from Salt Lake City to Grand Junction, Colorado. However, parts of the line host significant passenger rail traffic. Amtrak's California Zephyr uses the entire length of the Central Corridor, as part of its San Francisco – Chicago route. In addition, the portion from Salt Lake City to Provo, Utah hosts a separate, dedicated track built by the Utah Transit Authority for the southern half of the FrontRunner commuter rail service.