February 13, 2017 2:30 PM – Oroville Dam Status Remains Stable Update with the Latest Information from our Emergency Operations Center

February 13, 2017 2:30 PM

• There remains no imminent threat to Natomas

• The auxiliary spillway (which is a structure designed to release flows from the dam into a downstream area) at Oroville Reservoir is intact. Per State Department of Water Resources (DWR), it is not expected to fail. If there was a breach, the DWR maintains that the river system including the Yolo Bypass and associated weirs in the valley are able to absorb water release in the event of a collapse of the spillway.

• Lake Oroville is lowering approximately 4 inches per hour. The aim is to lower the lake level to between 30 and 50 feet below dam. As of 11 a.m., the level is 5 feet below the top of the auxiliary spillway.

• Evacuation orders are still in place in Butte, Sutter and Yuba Counties in addition to the cities in the region.

• Cal Expo opened this morning with Red Cross staffing. They are not asking for donations at this time.

• Evacuation orders are likely to remain in effect in those areas until staff have an opportunity to assess the spillway and have determined that the threat has been removed.

• People are being asked to evacuate the Tyler Island area South of Sacramento due to a potential levee failure, Walnut Grove residents have also been advised.

It is always good to have a plan, but as of now, the City of Sacramento is not in any imminent danger.


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