The Newhall Pass Interchange (officially Clarence Wayne Dean Memorial Interchange) is a highway interchange at Newhall Pass, north of Sylmar in Southern California, United States. It connects Interstate 5 (Golden State Freeway) with State Route 14 (Antelope Valley Freeway), and includes truck bypass roadways (which can also be used by cars). The main I-5 truck bypass is the original four-lane freeway, built as U.S.