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The core trench is the “anchor” of
the dam, extending underneath the dam from end to end. Excavated
deeply enough to insure a good foundation, its dimensions vary
depending on underlying geologic formations and soil structure. |
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Due to the sheer volume of the
embankment, the core trench at HorseThief Reservoir will be extended
a minimum of one foot into unweathered shale bedrock. |
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