Evacuation Advisory Lifted For Parts Of Tuolumne County After Cracks Found In Twain Harte Lake Dam

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TUOLUMNE COUNTY (CBS13) — A study of a large “explosion” led to the find of immoderate cracks successful the Twain Harte Lake Dam connected Thursday, authorities say.

According to the Tuolumne County Sheriff, archetypal responders went to analyse the sound and discovered immoderate cracks successful the dam.

Officials accidental determination were nary signs of explosive devices found. Instead, authorities judge radical astir apt heard stone astatine the dam cracking. The sheriff’s bureau says h2o was released from the water owed to the situation.

After reviewing the grade of the damage, the California Office of Emergency Services said Thursday evening that the evacuation advisory issued during the day was lifted owed to the dam appearing to beryllium structurally sound.

The advisory impacted areas downstream from the dam including: Good Shepherd Drive, Lucky Strike Trail successful Upper Crystal Falls, and each areas eastbound of the Sullivan Creek Bridge on the creek. Dore Bietz, the manager of the California Office of Emergency Services, said much than 150 structures were nether the advisory.

The contented appears to beryllium akin to an incidental that happened astatine the dam backmost successful 2014. A granite dome close adjacent to the dam fractured successful what scientists called an “exfoliating” event. People besides reported proceeding large and explosive pops.

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Twain Harte Lake is simply a backstage reservoir created by the dam. Back successful the summer, it was the tract of a sewer spill that prompted a impermanent closure of recreation activities astatine the lake.