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Flat Lotto taking in the view of the falls.
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To cross the Snake River Canyon, we had to
drive over a huge bridge called the I.B. Perrine Bridge which connects Twin
Falls with Interstate 84. This bridge is approximately 1,500 feet long, and
486 feet above the Snake River. Originally it was a toll bridge, but in 1940
the tolls were eliminated due to the lack of popularity of it. In the early
1970's the bridge was replaced with what you see today because the original
bridge was unable to handle the heavy loads of the vehicles trying to get to
Twin Falls.
After a brief rest and some lunch, we
ventured on to our ultimate destination. Just down the road a couple of
miles and a short loop back to the canyon we discovered what we had been
looking for. The Niagara of the West. This is home to a very large waterfall
called Shoshone Falls pronounced "show-SHOWN".
This waterfall is taller than Niagara. It is 212 feet (64.7 meters) high,
which is approximately 52 feet higher than Niagara. The water flows over a
multi-terraced rim which is 900 feet (274 meters) wide. These pictures were
taken on April 20th with the water running at about 18,600 cubic feet per
second. Which in simple terms means that's a lot of water! One cfs equlas
about 7.48 gallons of water per second or about 449 gallons of water per
minute. So what these pictures are showing is 139,138 gallons of water going
over the edge of the falls per second which is about 8,351,400 gallons of
water going over the edge of the falls per minute.
What is so unusual is that rarely are the water levels at this level. The
last time that the flows were this strong was in 1997, and it only happens
if we have normal to above normal precipitation in the mountains during the
winter. In the late summer one is likely to see 3 separate waterfalls if one
is lucky, or maybe only just a trickle over the far edge as the water is
held back in resevoirs for irrregation. But, when the moisture levels are
normal or above, and it is spring, one can see what the falls look like in
their natural state. |