Autumn Lake Level Fluctuations Complete

DECEMBER 9, 2016—Even with the dry weather, TVA’s River Management team was able to successfully raise and lower Boone Lake late last month to test the effectiveness of early project grouting work. After reaching 1,355 feet above sea level—the high end of the current operating range—the lake has now returned to about 1,352 feet.

Engineers are currently analyzing data collected by over 200 piezometers, which record water pressure, surrounding the dam. So far, there have been no surprises in the preliminary analysis. The project team is continuing work on the high mobility grout phase of the project, which uses a thinner consistency grout to fill in smaller cracks and crevices below the earthen embankment.

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Technical Field Lead Scott Lakes examines core samples taken during drilling on the dam’s earthen embankment.