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    Re: An essay about maps
    From: Fred Hebard
    Date: 2010 Nov 15, 07:06 -0500

    I'll ask a friend who works at TVA and try to get back to you all.  I
    doubt the official TVA story, since the catchement area behind the
    dam is only 1000 acres or so.  My bet is that the TVA story glosses
    over a plain, ordinary screw up.
    
    
    On Nov 15, 2010, at 12:39 AM, Frank Reed wrote:
    
    > Fred Hebard, you wrote:
    > "I live near Bristol, VA/TN. A dam was built on the Virginia side
    > (just northwest of Exit 7 on I-81) but the lake never filled; I'm
    > not sure why, have heard that the ground leaked (limestone soils/
    > karst topography). Regardless, the Google map depicts the lake
    > that's never been there!"
    >
    > Fred, I LOVE that one. The trails run right through the middle of
    > the phantom reservoir. And apparently you can play soccer
    > underwater. Here's the coordinates of the reservoir if anyone wants
    > to visit: 36.6467,-82.1091.
    >
    > The TVA, which built the dam, states on their web site that the
    > Beaver Creek Dam is "a flood detention dam with no permanent
    > reservoir pool." It seems that it was designed only for emergency
    > flood control. But somehow, decades ago, the USGS mapped it as a
    > filled reservoir (Google gets their basic data in the US from the
    > USGS). I wonder if the TVA ever let it fill up just to test its
    > integrity... Probably more likely that boundary just represents the
    > potential size if a flood ever requires closing the dam. By the
    > way, I could find no references to geological or soil issues. The
    > TVA counts it as an active flood-control structure, and it will
    > probably work just fine if Bristol ever needs it.
    >
    > -FER
    >
    >
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