State Route 190 (SR 190) is a state highway in the U.S. state of California that is split into two parts by the Sierra Nevada. The western portion of begins at Tipton at a junction with State Route 99 and heads east towards Porterville before ending at Quaking Aspen in the Sequoia National Forest. The eastern portion begins at US 395 at Olancha, heads east through Death Valley National Park, and ends at State Route 127 at Death Valley Junction. The 43.0-mile[2] (69.2 km) portion over the Sierra Nevada remains unconstructed, and the California Department of Transportation (Caltrans) has no plans to build it through the wilderness areas.[3]

The route east of State Route 136 near Keeler is on the California Freeway and Expressway System, but is a two-lane road. Except west of State Route 65 in Porterville, SR 190 is eligible for the State Scenic Highway System; the part within Death Valley National Park, known as the Death Valley Scenic Byway, has been added to the system and is a National Scenic Byway.[4]

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