Lancaster Road / Avenue D / Palmdale Blvd / Pearblossom Highway
Runs from I-5 near Gorman to SR-18 near Crestline

State Route 138 is mostly a rural two-lane highway. It is a heavily traveled route from Palmdale to I-15. Plans are being laid to widen Pearblossom Highway to a four lane conventional highway (no control of access). A direct connector (flyover) ramp is also planned to better connect 138 east to 18 east. Earlier plans (1960's) called for 138 to be upgraded to a full freeway from I-5 to I-15. That freeway was to be called the Metropolitan Bypass Freeway. Only a short connector was built at the I-5 junction.

Typical view of State 138 across the western segment through the Mojave Desert. Hills visible to the right are a part of Fairmont Butte.

North Connector Separation. 138 has a full connection with I-5NB and I-5SB.

Westbound view approaching the 5 interchange.

Mileage sign to points along 138. It doesn't go to San Bernardino though. It comes close.

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