Corps of Engineers work to minimize water flow through Walla Walla during heavy rain

Mill Creek, Walla Walla
Corps officials monitoring the Mill Creek Channel. Courtesy: Army Corps of Engineers Walla Walla District

WALLA WALLA, Wash. — As heavy rainfall looms over Southeastern Washington, the U.S. Army Corps of Engineers is taking emergency precautions to limit the flow of water through Mill Creek.

According to an online notice from the Walla Walla District of the U.S. Army Corps of Engineers, precautions are being taken to keep the water flow through the city of Walla Walla between 1,400 and 1,700 cubic feet per second (CFS).

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This will ensure that water won’t overflow from Mill Creek into the city, which would effectively damage the streets, cars and small businesses across the area.

Instead, Walla Walla District Water Management has devised a plan to divert excess water from the rainfall into Bennington Lake, which is located approx. two miles East of the city.

Formerly known as the Mill Creek Reservoir, Bennington Lake is operated by the Washington Department of Fish and Wildlife.

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Flows in excess of the aforementioned range (1,400 to 1,700 CFS) are expected to begin receding within the next 24 to 48 hours. Water officials will monitor the situation and react accordingly by re-directing water through Mill Creek normally once the excess rainfall is no longer present.

This is a developing news story. An update and/or follow-up may be issued once further details are revealed.


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