Spavinaw Lake Topics: dam design?
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Name:
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keyman
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Subject:
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dam design?
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Date:
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12/11/2008 1:01:07 PM
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The below paragraph is taken from APC document on Smith relicensing.Many people think there is a pipe for the spillway , however not so. You can look on google earth and the spillway can be seen west side of the dam draining southwest.
"The dam is a rock fill embankment, 2,200 ft long and 300 ft high, with a
top elevation of 550 ft msl. The top width is 50 ft and the base width is
approximately 1,060 ft. The spillway consists of a 956 ft long uncontrolled weir
at elevation 522 ft msl in the right abutment, which feeds into a 350 ft wide
channel cut through rock on the west upstream bank. This 3,000 ft long channel
discharges into Mill Creek, which flows into the Sipsey Fork of the Warrior River
approximately 2.5 miles downstream from the dam, although there has never been
a spill of floodwaters into the channel (APC, 1965; APC, 1995; FERC, 1999).
The spillway capacity at an elevation of 532 ft msl is approximately 88,000 cfs
(APC, 1965)."
keyman
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