Interstate 205 is a short, well traveled freeway providing regional connectivity between the Central Valley of California and the San Francisco Bay Area. Running across the north side of Tracy, I-205 connects with I-5 north through Lathrop and SR 120 east to Manteca. West of Tracey at the Alameda County line, Interstate 205 links with I-580, the main route from the heart of the Central Valley into the Bay Area.
Although it bypasses Tracy, a growing bedroom community and transportation hub to south, Interstate 205 comprises a commuter route with six overall lanes. The freeway primarily channels traffic to the Bay Area via Interstate 580 and Altamont Pass from Stockton to the north, Manteca, Oakdale and Sonora to the east and Modesto, Turlock and Merced to the southeast.
Interstate 205 closely parallels old U.S. 50, which was decommissioned in 1964. U.S. 50 was upgraded to a freeway across Tracy during the early 1950s. Despite the highway predating the Interstate Highway System, Interstate 205 is considered an original 1956 Interstate Highway.1 Portions of the U.S. 50 freeway were eventually incorporated into Business Loop I-205, which follows old U.S. 50 through Tracy along 11th Street.