Mammoth Lakes: One-Way Traffic Planned Monday on SR-203 for Pavement Crack Sealing

MAMMOTH LAKES, MONO COUNTY — November 5, 2026. Motorists entering and leaving Mammoth Lakes on State Route 203 should prepare for temporary one-way traffic control on Monday, November 9. Caltrans District 9 says crews will seal cracks in the pavement between Mammoth Scenic Loop Road and Forest Trail Road from 7:30 a.m. to 3:30 p.m.

How long could traffic wait?

The agency estimates delays of up to 10 minutes. One-way control ordinarily allows traffic in alternating directions under work-zone supervision, but drivers should obey actual signs and flaggers. The announcement does not state that the entire highway will close to travel or that resorts and nearby businesses are inaccessible.

Why seal pavement cracks?

Routine sealing helps keep water out of pavement and reduces the development of larger defects, a practical concern in mountain communities facing freeze-thaw cycles. The work occurs as visitors begin preparing for winter recreation, making accurate planning especially important for workers, school trips and travelers arriving from U.S. 395.

Check before traveling

The schedule is weather and operational dependent, and the same Caltrans bulletin states no highway work is planned Wednesday November 11 for Veterans Day. For updates, consult QuickMap rather than assuming the planned restriction is active all day.

Source: Caltrans District 9 traffic advisory, November 5, covering the week of November 9.

YOUR LOCAL NEWSPAPER NEEDS YOU

Help this community newspaper grow

Your support helps build coverage for the people and places this local newspaper serves.

Donate once by card ↗

Help Mammoth Lakes News grow Help strengthen reporting on Mammoth Lakes: community voices, important decisions and local life.

Support Mammoth Lakes News

Choose how to support Mammoth Lakes News:

Credit / Debit Card via Stripe

Choose an amount from $1. One-time support through the publisher's LINKERNO Stripe account.

Continue with PayPal Continue with Zelle

Zelle payments go to Vitaly Ataev Troshin. Please verify the recipient in your bank before sending. Availability depends on your bank.

Optional reader support. When possible, add “Mammoth Lakes News” to the payment note. Contributions are not advertised as tax-deductible. Support does not influence editorial decisions.

Optional support through the publisher. Contributions are not advertised as tax-deductible and never buy editorial influence.

Mammoth Lakes News — Your Community Newspaper

Have a correction, news tip, local announcement, or story to submit? Contact our editorial team. All submissions are reviewed before publication.