I-238 is a special kind of freeway. It's actually the continuation of California 238, there is no "Interstate 38", and "southbound" traffic at this sign is really going east-southeast toward Interstate 580 in Castro Valley.
I-238 is a special kind of freeway. It's actually the continuation of California 238, there is no "Interstate 38", and "southbound" traffic at this sign is really going east-southeast toward Interstate 580 in Castro Valley.