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Geologists to map new fault near Truckee

Posted by: Maven on November 19, 2009 at 6:42 am

martis creek damFrom the Sacramento Bee:

“Geologists from two national engineering firms will begin mapping the recently identified Polaris earthquake fault near Truckee.

Martis Creek Dam – plagued by seepage as well as the fault – has been deemed one of the riskiest of the U.S. Army Corps of Engineers’ 610 dams nationwide and is the subject of a long-term study and remedial efforts.

Kleinfelder and AMEC-Geomatrix will be paid $250,000 for their part of the continuing study of the dam in Martis Valley, which lies between Truckee and North Lake Tahoe.

“Seismically, it’s very active up there,” said Ronn Rose, a corps geologist and dam safety program manager for the corps’ Sacramento district.

Discovery of the fault, in which Rose had a part, is “exciting for the geology community,” he said. “It’s not common that you find a brand-new fault.” … “

Read more from the Sacramento Bee by clicking here.

November 19, 2009 · Filed Under Lake Tahoe, the Sierras & foothills

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