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Corps Raises Gathright Dam Reservoir Level
February 3, 2010

Gathright Dam.

According to information available from the U.S. Army Corps of Engineers, Norfolk District, after a thorough evaluation of the risks identified in the Dam Safety Action Classification II (DSAC) report of Gathright Dam in Covington, Va. and finding no unusual conditions, the U.S. Army Corps of Engineers, Norfolk District, began filling the reservoir (Lake Moomaw) back to its normal conservation pool elevation of +1582 feet.

During the four-month intensified surveillance/monitoring period, which began in mid-October 2009, the reservoir level was lowered while immediate and short-term risk reduction measures and studies were implemented. The lower reservoir increased available storage for rare flood events.

Significant items accomplished and documented by the Corps during the evaluation period included:

  • Completion of the dam safety consultant’s independent assessment of existing data and condition of the dam – It was determined there was no evidence of increasing seepage.
  • Completion of internal review of the instrumentation data – It was determined there was no evidence of increasing seepage or unusual conditions at the dam.
  • Completion of four months of increased monitoring/surveillance and data collection – No unusual or unexpected conditions were observed.
  • Completion of additional remote monitoring equipment installation on project instrumentation.

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