Newhall Pass interchange

Newhall Pass Interchange
Clarence Wayne Dean Memorial Interchange
View from truck bypass
Location
Santa Clarita
Coordinates	34°20′06″N 118°30′30″W / 34.33500°N 118.50833°W / 34.33500; -118.50833
Roads at junction	I-5 SR 14 I-210
Construction
Maintained by	Caltrans

The Newhall Pass interchange (officially Clarence Wayne Dean Memorial Interchange) is a highway interchange at Newhall Pass in Southern California, United States. It is south of the city of Santa Clarita and north of the Los Angeles neighborhoods of Granada Hills and Sylmar. It connects Interstate 5 (I-5, Golden State Freeway) with California State Route 14 (SR 14, Antelope Valley Freeway). It is officially named in the memory of Los Angeles Police officer Clarence Wayne Dean, who was killed when he was unable to stop before going over a collapsed section of the interchange immediately following the 1994 Northridge earthquake.

The 5-14 Split, as the interchange is commonly referred to as by locals, is the northernmost of five freeway interchanges on I-5 within a 10-mile (16 km) stretch. From south to north, the freeways that interchange with I-5 include: SR 170 in Sun Valley, SR 118 in Mission Hills, I-405 also in Mission Hills, I-210, in Sylmar, and ultimately the SR 14.

The interchange is extremely large, and consists of numerous flyover ramps and two tunnels. Portions of I-5 in the pass reach up to 21 lanes wide. The complex structure combines a directional T-interchange with a collector–distributor bypass. The bypass, signed as truck lanes, allows traffic to and from SR 14 to avoid the congested pass summit. These truck lanes extend south to the I-210 interchange, and have direct ramps to and from the Foothill Freeway. The bypass is the original four-lane freeway, built as U.S. Route 99.^[1]