A fiber-optic cable interruption is preventing the Montgomery County Department of Transportation (MCDOT) from monitoring approximately 450 traffic signals in the southern half of the County as of June 12, 2026. The signals themselves continue to operate on schedule with no direct public impact, but the outage may last several days. With thunderstorms possible Friday evening, MCDOT is asking residents to report any signal outages to the Montgomery County Police non-emergency line at 301-279-8000.
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Source: Press Release - Montgomery County, MD, “Montgomery County is Asking the Public to Report Traffic Signal Outages ”, received Jun 12, 2026.
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This alert didn't include additional links. The primary source is the county email cited above.
Key dates
2026-06-12
effective — Fiber-optic cable interruption affecting live monitoring of ~450 traffic signals begins; expected to span a few days
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