GAVIOTA, SANTA BARBARA COUNTY | October 18, 2026. Drivers heading north on US Highway 101 through Gaviota Pass should prepare for brief traffic stops later this week. Caltrans District 5 announced a rock-scaling operation for Thursday, October 22, and Friday, October 23, between 9 a.m. and 3 p.m., near the roadway just north of Gaviota Tunnel.

The California Highway Patrol will manage intermittent rolling road closures by bringing northbound traffic to a full stop while crews clear loose rocks. Caltrans says each planned stop will last no longer than 15 minutes. Weather and operational conditions may alter the work window or the delays travelers actually experience.

What is rock scaling?

Rock scaling involves removing unstable or displaced rock from a roadway cut or adjacent slope to reduce the risk of falling material reaching moving traffic. Work crews need room to inspect and clear the hazardous material, so drivers cannot safely pass underneath or beside the operation at the same time.

The state says its Buellton maintenance team and Caltrans engineers from San Luis Obispo are conducting the work. It is preventive road-safety maintenance, not evidence that the Gaviota Tunnel has been closed indefinitely or that a major landslide occurred on the publication date.

Exact schedule and affected direction

  • Dates: October 22 and 23, 2026.
  • Daily hours: 9 a.m.–3 p.m.
  • Road: northbound US-101 immediately north of Gaviota Tunnel.
  • Method: CHP-led intermittent rolling closures with a full stop, not a planned continuous six-hour shutdown.
  • Duration of each stop: not more than 15 minutes according to Caltrans’ announcement.

Why travelers should distinguish closures from delays

The highway is an important route between Santa Barbara and destinations farther north along the Central Coast. An intermittent full stop might cause a longer traffic queue even when the pause itself lasts no longer than 15 minutes. The agency has not provided a guaranteed maximum total journey time for motorists arriving during the construction period.

Visitors should avoid sudden lane changes, be prepared for electronic message signs, and follow CHP directions. For trucks and larger vehicles, the safest route decision depends on official travel guidance and current restrictions; California58 does not invent a detour for an intermittent closure.

What changes for residents?

People traveling north through Gaviota for work, deliveries, medical appointments or tourism should schedule additional time during the two daytime maintenance windows. There is no indication in the published advisory that southbound US-101 is subject to the same stop procedure.

Official source: Caltrans District 5, October 15, 2026. For current restrictions, use QuickMap and any directions from law enforcement.

Editorial note: Information describes scheduled safety maintenance; it is not an independent confirmation of live traffic stoppages. Weather and safety can change the dates and hours.

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