State Route 14 (
SR 14) is a north–south
state highway in the U.S. state of
California, largely in the
Mojave Desert. The southern portion of the highway is signed as the
Antelope Valley Freeway. The route connects
Interstate 5, or
Golden State Freeway, on the border of the
Los Angeles neighborhoods of
Granada Hills and
Sylmar and with
U.S. Route 395 near
Inyokern. Legislatively, the route extends south of I-5 to
State Route 1 in the
Pacific Palisades area of
Los Angeles, however the portion south of the junction with I-5 has not been constructed. The southern part of the constructed route is a busy commuter freeway serving and connecting the communities of Santa Clarita,
Palmdale and
Lancaster with the rest of the
Greater Los Angeles area. The northern portion, from Vincent (south of Palmdale) to Route 395, is legislatively named the Aerospace Highway, as the highway serves
Edwards Air Force Base, once one of the primary landing strips for
NASA's
Space Shuttle. This section is rural, following the line between the hot Mojave desert and the forming
Sierra Nevada mountain range. Most of Route 14 is loosely paralleled by a main line of the
Southern Pacific Railroad, used for the
Antelope Valley Line of the
Metrolink commuter rail system as well as a connection between Los Angeles and the
Central Valley via
Tehachapi Pass.