Interstate 5 and the Peripheral Canal in San Joaquin and Sacramento Counties, California

Over half of Interstate 5 (I-5), the principal north-south route on the west coast of the United States, is located within California. In October 1976, the Department of Transportation classified about 22 miles of I-5 in California's San Joaquin and Sacramento Counties as one of the essential gaps of the Interstate Highway System. At present, about 7 miles of the 22-mile segment have been completed and opened to local traffic, and work on the remaining 13 miles is underway.