California State Route 299

State Route 299
SR 299 highlighted in red
Route information
Maintained by Caltrans
Length	305.777 mi[1] (492.100 km)
Tourist routes	Trinity Scenic Byway
Major junctions
West end	US 101 in Arcata
Major intersections	SR 96 in Willow Creek SR 3 from Weaverville to Douglas City I-5 in Redding SR 139 from Adin to Canby US 395 from Alturas to near Surprise Station
East end	Former SR 8A towards Vya, NV
Location
Country	United States
State	California
Counties	Humboldt, Trinity, Shasta, Lassen, Modoc
Highway system
State highways in California Interstate US State Scenic History Pre‑1964 Unconstructed Deleted Freeways
← SR 284 → SR 330

State Route 299 (SR 299) is an east–west state highway in the U.S. state of California that runs across the northern part of the state. At 305.777 miles (492.100 km), it is the third longest California state route, after Route 1 and Route 99, and the longest east-west route. Route 299's western terminus is at US 101 at the northern edge of Arcata, and its eastern terminus is at the Nevada state line at a point east of Cedarville. Between Arcata and Redding, Route 299 intersects with State Route 96, and is briefly co-signed with State Route 3. In Redding, it intersects with State Route 273, State Route 44, and Interstate 5. East of Redding, it intersects with State Route 89, and a section is co-signed with State Route 139 before reaching Alturas. It is then co-signed with U.S. Route 395 northeast of Alturas, and then runs east through Cedarville and to the border with Nevada. A ghost town, Vya, Nevada, can be reached via this route, which after the border becomes a dirt road, which was formerly Nevada State Route 8A. The segment of SR 299 between Arcata and Redding is the Trinity Scenic Byway, a National Forest Scenic Byway.^[2]