Power outages disable Coyote Valley Dam


Odd that there is no back-up generator – Moderator

Power outages disable Coyote Valley Dam


Published: Wednesday, July 1, 2009 at 9:01 a.m.
Last Modified: Wednesday, July 1, 2009 at 9:13 a.m.

A seven-hour power outage near Ukiah Tuesday night disabled the 
Coyote Valley Dam at Lake Mendocino, dropping Russian River water 
levels overnight.

The worst occurred over a 40- to 45-minute time period while the dam 
was operated manually. Water outputs from the dam dropped from 116 
cubic feet per second to about 25 cfs, or, in layman’s terms, about a 
tenth of an inch, said Brad Sherwood, spokesman for the Sonoma County 
Water Agency.

While that may not sound like much, it is enough to strand fish and 
wildlife, resulting in deaths, Sherwood said. None have been reported.

The City of Ukiah, which operates the area’s utilities, said 
equipment failure caused the 9:39 p.m. outage that cut power to the 
dam as well as 1,052 customers. Power was restored to the majority of 
customers by 1:30 a.m., but some remained without electricity until 
4:30 a.m.

Water agency biologists monitored the river Wednesday for signs that 
the dip in water level affected local wildlife. There were no reports 
of damage.

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