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<p class=MsoNormal><st1:place w:st="on"><b><font size=4 face="Times New Roman"><span
style='font-size:14.0pt;font-weight:bold'>Trinity River</span></font></b></st1:place><b><font
size=4><span style='font-size:14.0pt;font-weight:bold'> flows are near record <o:p></o:p></span></font></b></p>
<p class=MsoNormal><b><font size=4 face="Times New Roman"><span
style='font-size:14.0pt;font-weight:bold'><o:p> </o:p></span></font></b></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Trinity Journal<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>May 24, 2006<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>150<sup>th</sup> Year, No. 21<o:p></o:p></span></font></p>
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style='font-size:14.0pt;font-weight:bold'><o:p> </o:p></span></font></b></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>A huge volume of water gushes from the glory hole's raceway outlet
(upper right). The buildings are the dam's hydroelectric plant. <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>By AMY GITTELSOHN<br>
The <st1:place w:st="on">Trinity River</st1:place> is roaring with a release
from the Lewiston Dam of 10,000 cubic feet per second – the highest
it’s been since 1974.<br>
Predicting the release to the river has been a moving target over the past few
weeks as Central Valley Project operators have released higher flows than
anticipated to compensate for rapid inflows to <st1:place w:st="on"><st1:PlaceName
w:st="on">Trinity</st1:PlaceName> <st1:PlaceType w:st="on">Lake</st1:PlaceType></st1:place>
from a heavy snowpack.<br>
“It’s a pretty dramatic sight,” said Doug Schleusner,
executive director of the Trinity River Restoration Program. “We will be
at 10,000 at least through the end of the week, and we’re currently
looking to see if we can go to 11,000.”<br>
On Tuesday, Schleusner said that decision would be based on monitoring being
performed that day, and if the release does go to 11,000 cfs it would probably
be for only one day.<br>
The higher flows are meant to improve habitat for fish and this year are also
serving the purpose of keeping the reservoir at a level operators are
comfortable with.<br>
“These (extremely wet) years don’t come along often and we would
like to take full advantage,” Schleusner said, but “we’ll
only do that if we’re totally convinced that we could do so
safely.”<br>
The 10,000 cfs is the second-highest release to the <st1:place w:st="on">Trinity
River</st1:place> on record since the dam has been in place. The highest
release was made in January 1974, when the release was raised to 14,400 cfs
during destructive storms.<br>
Although a plan to restore the <st1:place w:st="on">Trinity River</st1:place>
calls for a spring peak release of 11,000 cfs in an extremely wet year such as
this one, restoration program managers had not expected to be able to do that
for fear of damaging structures. The federal Bureau of Reclamation had approved
a proposal by the Trinity Management Council calling for a spring high of 8,500
cfs, with increases above that allowed if it could be done safely.<br>
With the recent dry spell, the tributaries to the <st1:place w:st="on">Trinity
River</st1:place> subsided enough for the higher flows to be possible,
Schleusner said.<br>
The schedule had called for a spring peak lasting 13 days, but that time period
will be shortened to compensate for the higher flow.<br>
Researchers with the restoration program are busy monitoring sediment movement
and staking out high water areas.<br>
“We will use this new release level now to calibrate all the models we
use to make a prediction,” Schleusner said.<br>
On Tuesday, water was pouring out of <st1:place w:st="on"><st1:PlaceName w:st="on">Trinity</st1:PlaceName>
<st1:PlaceType w:st="on">Lake</st1:PlaceType></st1:place> not only through the
power plant and outlet works at the dam but also through the “glory
hole” drain located above the dam.<br>
The water began trickling into the glory hole last Friday afternoon and
increased over the weekend.<br>
Schleusner was quick to say that this is not an uncontrolled spill, adding that
whatever goes through the glory hole can be compensated for by adjusting the
gates at the dam.<br>
The flow to Clear Creek Tunnel, which takes water from <st1:PlaceName w:st="on">Lewiston</st1:PlaceName>
<st1:PlaceType w:st="on">Lake</st1:PlaceType> to <st1:PlaceName w:st="on">Whiskeytown</st1:PlaceName>
<st1:PlaceType w:st="on">Lake</st1:PlaceType> and the <st1:place w:st="on">Sacramento
River</st1:place>, can also be adjusted, he said.<br>
He added that teams have met with property owners along the river, and
“most of them that we’ve talked to we’ve worked with them
consistently enough that this is not a surprise.”<br>
With high releases, river restoration personnel are monitoring the river in
case of problems, Schleusner said.<br>
“Certainly,” he said, “the public is encouraged to talk to
them or the office with questions or concerns.” </span></font><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
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