{"id":6,"date":"2026-10-09T03:53:14","date_gmt":"2026-10-09T03:53:14","guid":{"rendered":"https:\/\/hwy99.us\/?page_id=6"},"modified":"2026-10-09T03:53:14","modified_gmt":"2026-10-09T03:53:14","slug":"home","status":"publish","type":"page","link":"https:\/\/hwy99.us\/","title":{"rendered":"Home"},"content":{"rendered":"\n
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CALIFORNIA + OREGON \u00b7 A ROAD HISTORY PROJECT<\/p>\n\n

Before the interstate.
Along Highway 99.<\/h1>\n\n

Discover the towns, old pavement, and changing routes of historic US Highway 99 through California and Oregon.<\/p>\n<\/div>\n<\/div>\n\n

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FOLLOW THE OLD ROAD<\/p>\n\n

One highway.
Many journeys.<\/h2>\n\n

US 99 joined the United States numbered highway system in 1926. Its full corridor eventually connected the Mexican and Canadian borders; this project focuses on California and Oregon.<\/p>\n\n

As new roads opened, the highway shifted. The US designation disappeared from California in the 1960s and from its final Oregon section in 1971. Portions survived as state highways and local streets.<\/p>\n\n

Sources: Historic Highway 99 Association: overview<\/a><\/p>\n<\/div>\n<\/div>\n\n

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99<\/p>\n\n

HISTORIC US HIGHWAY<\/p>\n\n

California \u00b7 Oregon
History, places & former routes<\/p>\n<\/div>\n<\/div><\/div><\/div>\n<\/div>\n\n

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Choose a stretch of the road<\/h2>\n
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01 \/ CALIFORNIA<\/p>\n\n

Desert to the Siskiyous<\/h3>\n\n

Explore the California corridor, the Sacramento Valley branches, and the roads that came before the freeway.<\/p>\n\n

Explore this section \u2192<\/a><\/p>\n<\/div>\n<\/div>\n\n

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02 \/ OREGON<\/p>\n\n

Through western Oregon<\/h3>\n\n

Start with the Pacific Highway corridor and the histories of the 99E and 99W branches.<\/p>\n\n

Explore this section \u2192<\/a><\/p>\n<\/div>\n<\/div><\/div><\/div>\n<\/div>\n\n

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THE NEXT CHAPTER<\/p>\n\n

Putting the old routes
back on the map.<\/h2>\n\n

Our long-term goal is a map with layers for the original US 99 alignment, later realignments, and the final US 99 routings. Each researched segment will carry dates, sources, and a clear indication of uncertainty.<\/p>\n

About the map project<\/a><\/div><\/div><\/div>\n<\/div>\n\n
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Start with the sources<\/h2>\n\n

Browse preservation organizations, route histories, and historical map collections. The research directory is the first stop for exploring beyond these introductory pages.<\/p>\n

Browse research & links<\/a><\/div><\/div><\/div>\n<\/div>\n\n
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An archive in the making<\/h2>\n\n

Hwy 99 Information is an independent research project. These first pages introduce the corridor; detailed town histories, photographs, and mapped alignments will be added as they are documented.<\/p>\n\n

The project is not affiliated with the organizations linked here.<\/p>\n<\/div>\n<\/div><\/div><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

CALIFORNIA + OREGON \u00b7 A ROAD HISTORY PROJECT Before the interstate.Along Highway 99. Discover the towns, old pavement, and changing routes of historic US Highway 99 through California and Oregon. FOLLOW THE OLD ROAD One highway.Many journeys. US 99 joined the United States numbered highway system in 1926. Its full corridor eventually connected the Mexican […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-no-title","meta":{"footnotes":""},"class_list":["post-6","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/hwy99.us\/index.php?rest_route=\/wp\/v2\/pages\/6","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hwy99.us\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/hwy99.us\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/hwy99.us\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hwy99.us\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6"}],"version-history":[{"count":0,"href":"https:\/\/hwy99.us\/index.php?rest_route=\/wp\/v2\/pages\/6\/revisions"}],"wp:attachment":[{"href":"https:\/\/hwy99.us\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}