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More info on California State Route 154

California State Route 154: Map


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State Route 154 (SR 154) (also known as the Chumash Highway or unofficially as San Marcos Pass after the signage) runs from Los Olivosmarker to Santa Barbara, Californiamarker, USA. Before U.S. Route 101 was built, this was the main throughway to Santa Barbara and the tri city area including use as a Stagecoach route in early years. It is a 2 lane road with some passing lanes. It rivals US 101 for traffic, but it goes through the Los Padres National Forestmarker and the San Marcos Passmarker. It starts in Los Olivos as a spur from US 101, goes through the town, and then the end of SR 246 at Santa Ynezmarker. It then reaches Lake Cachumamarker and passes through the Los Padres National Forest, and across the Cold Spring Canyon Arch Bridgemarker, where Cold Spring Tavernmarker is on Stagecoach Road which passes below the bridge. Nearby it crosses Camino Cielo Road to the East and West, then the intersection of Painted Cave Road and Old San Marcos Road before descending to Santa Barbara. It then briefly becomes four lanes and passes an offramp for SR 192 (named Foothill Road to the East and Cathedral Oaks Road to the West of SR 154), before stopping at Calle Real and a Southbound onramp to US 101 and ending at the point where State Street to the East becomes Hollister Avenue to the West.

This route is part of the California Freeway and Expressway System and is eligible for the State Scenic Highway System.

Major intersections

Note: Except where prefixed with a letter, postmiles were measured in 1964, based on the alignment as it existed at that time, and do not necessarily reflect current mileage.
The entire route is in Santa Barbara Countymarker.
Location Postmile

Destinations Notes
Zaca R0.00 Interchange
14.77 Cachuma Lake County Parkmarker
West end of freeway
East end of freeway
Santa Barbaramarker 32.28 Interchange

See also


  1. ACR 75
  2. CA Codes (shc:250-257)
  3. CA Codes (shc:260-284)
  4. California Department of Transportation, State Truck Route List (XLS file), accessed October 2008
  5. California Department of Transportation, Log of Bridges on State Highways, April 2008
  6. California Department of Transportation, All Traffic Volumes on CSHS, 2007

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