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News · Around town · Mariposa County · Mariposa · California

One-Way Delays Set for State Route 140 Sept. 21

Caltrans expects one-way traffic control and delays on State Route 140 in Mariposa County on Sept. 21, 2026.

One-Way Delays Set for State Route 140 Sept. 21

Key takeaways

  • One-way traffic control is expected on State Route 140.
  • The advisory applies to Mariposa County.
  • Delays are expected on September 21, 2026.
  • Travelers should allow extra time and check current traffic information.

What Caltrans announced

Caltrans has scheduled one-way traffic control on State Route 140 in Mariposa County for September 21, 2026. The traffic control is expected to cause delays for drivers using the highway that day.

The advisory identifies State Route 140 and the date of the planned traffic restriction. It does not change the route’s status beyond the one-way control described in the notice.

What drivers should expect

Traffic will move in one direction at a time during the control period. Drivers using State Route 140 on September 21 should allow additional travel time because delays are expected.

The advisory does not establish a broader closure of State Route 140. It describes one-way traffic control and related delays for the specified date.

Timing and local impact

The planned control applies to State Route 140 in Mariposa County on September 21, 2026. Travelers who use the highway that day should check for current Caltrans traffic information before leaving and be prepared for changing travel times.

The Sierra Sun Times reported on the Caltrans traffic advisory. The notice concerns a scheduled traffic change on a county road route, rather than an election or campaign matter.

What to watch

  • Any updated Caltrans notice before September 21, 2026.
  • Day-of changes to traffic control on State Route 140.
  • Updated travel times or delay information for the route.

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