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^ Located in Spotsylvania County, VA, The Hunting Run Dam is a water supply dam that creates an off stream storage reservoir. |
Hunting
Run Dam: Overview The
Hunting Run Dam grout curtain was quantitatively designed with a defined performance criteria of
less than 5 Lugeons.*
The basic grout curtain was a single-line curtain, 1,100 feet long and
constructed up to 125 feet deep.
This design also provided for additional curtain lines of variable depth
in reaches wherever geologic conditions were found to require additional
grouting. The
grout curtain construction value was approximately $1.1 million. Solution Grouting
was accomplished using the IntelliGroutTM System.
Its ability to display water testing results by hole series, in addition
to displaying the Lugeon* values at every stage, permitted instaneous performance
assessments as grouting proceeded. IntelliGrout's
analytical and visual display capabilities were of tremendous value in locating
and isolating specific geologic features which required additional
verification or treatment. This allowed highly effective program
modifications to target those features in a time frame compatible with the
project's rapid construction pace.
* A lugeon is a unit of permeability used in grouting work. Five Lugeons equals 1.1 x 10-4 feet per minute. |
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^ A Gannett Fleming Geotechnical Engineer examining the rock core at the Hunting Run Dam site. Grouting activities were completed in 2001. |
