The Jimmycomelately Creek watershed encompasses 15.4 square miles, with a vertical drop of approximately 2,500 feet over 19.8 miles. The stream originates in Olympic National Forest, flowing through steep timberland for most of its length. The gradient diminishes to 1% or less in the lower 1.5 miles of the creek, and land use transitions to agricultural practices. The lower 2.0 miles of the creek supports populations of coho salmon, steelhead trout and summer chum salmon. The summer chum salmon are listed as threatened under the Endangered Species Act. The average annual precipitation in the watershed varies from approximately 16 inches per year near the City of Sequim to nearly 35 inches per year at Mt. Zion, the highest point of the watershed. The average precipitation intensity, which governs the recurrence interval of the peak flood, is 2 inches in 24 hours. This gauge was installed at the request of the Dungeness River Management Team and the project partners in the Jimmycomelately Creek Ecosystem Restoration Project. Jimmycomelately Creek was diverted in the early 1900’s from its historic location into a straightened channel, to provide agricultural land for the local residents. This diversion disconnected the stream from its historic floodplain and wetland complex as well as displaced it from its historic estuary. The restoration project is an ambitious attempt to restore the creek to its historic condition through reconstruction of a meandering channel in the historic floodplain, and reconnection of the channel to the historic estuary.
Period of Record: 2000 — 2005
Station 17C070—Verified historical data
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