Inundation Map 1

LEAVENWORTH, WA – Chelan County Emergency Management is hosting a public meeting at 7:00 p.m. Monday, May 14th at Fire District #3 (228 Chumstick Road in Leavenworth) - to address the current situation at Eightmile Lake Dam.

The dam is located in the Alpine Lake Wilderness and operated by the Icicle-Peshastin Irrigation District. It is nearly 100 years old and in a deteriorating condition. Because the area was significantly burned in the Jack Creek wildfire in 2017, Eightmile Lake is more vulnerable to erosion and flash flooding, which could overwhelm the dam. A breach of the dam could cause a significant wave of water to flow down Eightmile Creek into Icicle Creek near Eightmile Campground and quickly raise the level of Icicle Creek.

There is an increasing level of concern about the dam and we want to share information for impacted residents, landowners, and visitors. Currently, there are no actual evacuation notifications in place for Icicle River residents, but we ask residents within the affected area to be prepared to evacuate as conditions change. (Click for inundation map #1 and inundation map #2).

Chelan County Emergency Management is working with the Icicle-Peshastin Irrigation District and the Department of Ecology Dam Safety Office to monitor conditions at the dam while developing a plan to reduce the risk of a dam failure. We are also working with the U.S. Forest Service, which owns the land at the dam site.

To see a map of the potentially impacted downstream area, visit our Facebook page at www.facebook.com/CCSOEM.

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