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Pacific Northwest Watershed

Johnson Creek

Johnson Creek ows west for 26 miles from the agricultural foot- hills of Mount Hood near Boring, Oregon, to enter the Willamette River just upstream of Portland. Numerous springs and 50 inches of annual rainfall over a 54 square-mile watershed provide stream flow to the creek and its tributaries. Salmon, trout, diverse wildlife, and 180,000 people live in the Johnson Creek watershed.

  • Winter Steelhead
  • Coho Salmon
  • Coastal Cutthroat Trout
  • Fall Chinook Salmon
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Watershed Report Card

B

Good

Overall health score: 78/100

78

Data sources: USGS NWIS, EPA ATTAINS, StreamNet, NIFC, US Drought Monitor, NID. Scoring methodology developed by Native Fish Society based on salmonid habitat criteria. Data reviewed 2026.

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