page_title: U.S. Route 99 in California
section_title: Sacramento to Oregon
hierarchical_section_title: U.S. Route 99 in California / Route description / Sacramento to Oregon
caption_attribution_description: English: Section of a 1937 highway map along US99
context_page_description: U.S. Route 99 was the main north–south United States Numbered Highway on the West Coast of the United States until 1964, running from Calexico, California, on the Mexican border to Blaine, Washington, on the Canadian border. Known also as the "Golden State Highway" and "The Main Street of California", US 99 was an important route in California throughout much of the 1930s as a route for Dust Bowl immigrant farm workers to traverse the state. It was assigned in 1926 and existed until it was replaced for the most part by Interstate 5. A large section in the Central Valley is now State Route 99.
context_section_description: North of Sacramento, the route divided into US 99W and US 99E.  US 99W co-routed with US 40 west to Davis, in city as Olive Drive. The route continued as Richards Boulevard, 1st Street, B Street, and Russell Boulevard before turning north on what is now SR 113 into Woodland to meet and parallel I-5 near the town of Yolo. From there, the route parallels the current I-5, entering Corning from the South as Old Corning road, turning east onto Solano Street before turning north again on 3rd street continuing to Red Bluff, where it became Main Street.  All of the old inter-town original roadway still exists, signed as 99W, CR 99 or CR 99W.
  From Sacramento US 99E followed I-80 (first the current business route, then the actual route) to Roseville, then north along SR 65 to Olivehurst, from where it followed SR 70 to Marysville.  From Marysville it followed SR 20 across the Feather River to Yuba City, then along the current SR 99 north to Red Bluff, where it rejoined 99W at Main Street and Antelope Boulevard.
  From Red Bluff US 99 continued north along the same route as I-5, except that it went through Redding along present SR 273. and SR 263 from Yreka to near Black Mountain.
  From Redding, the highway went through the small town of Mountain Gate, before plunging into what is now Shasta Lake. In drought years, many of the old bridges, road cuts, and guardrail can be seen when the water in the lake resides. After passing Shasta Lake, the highway had to be designed around very difficult terrain. The Sacramento River Canyon was a big task to overcome, but to this day, many bridges can still be found and visited, reminding us of how far our engineering has come. Once into Siskiyou County, the highway meanders through Dunsmuir, heading north to Mount Shasta, and from there, up to Weed. In Weed, the highway becomes SR 265 for a very short distance, before heading north towards the town of Gazelle.
  A 22.7-mile-long (36.5 km) stretch of two-lane county road known as "Old Highway 99" exists in Siskiyou County, between Weed and Yreka, in the same form as it did when it was US 99. It roughly parallels I-5, but at one point diverges from it by a distance of several miles.
  Once north of Yreka, the highway becomes SR 263, merges with SR 96, and heads north to Hornbrook. Much of the old highway between Hornbrook and Oregon has been demolished or currently sits on private property.
caption: US 99 from Orland, CA to Ashland, OR in 1937
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