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A fact from Apalachia Dam appeared on Wikipedia's Main Page in the Did you know column on 3 February 2009, and was viewed approximately 3,246 times (disclaimer) (check views). The text of the entry was as follows:
What is the reason the powerhouse was sited at such a distance? 72.228.150.44 (talk) 16:51, 3 February 2009 (UTC)[reply]
I tried to explain this in paragraph 3 of the background section, but it may not be clear. Basically, the river drops rapidly in elevation downstream from the dam. If TVA had placed the powerhouse right at the base of the dam, the water plunging to turn the turbines would have dropped about 100ft. By carrying the water a little further downstream (and keeping it level in the tunnel), an extra 100ft or so is added to the water's plunge to the turbine, and thus supplies much more energy. Bms4880 (talk) 20:08, 3 February 2009 (UTC)[reply]
