Phase
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Phase Threshold
Stage (height) at Issaquah Creek near Hobart gage
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Expected Flood Impacts and Actions
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1 - No flooding typically occurs
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6.5 ft |
King County staff are on alert. Issaquah Public Works and Police Department are notified. Standby monitoring begins.
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2 - Minor Flooding
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7.5 ft |
Frequently flooded areas can expect flooding. A few street closures due to water on roadway. City of Issaquah Public Works Operations Department begins flood-fighting activities.
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3 - Moderate Flooding
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8.5 ft |
Considerable flooding on Issaquah Creek, Tibbetts Creek, and the East Fork of Issaquah Creek. Flooding possible in many creekside areas. Issaquah Public Works' full flood-fighting effort in effect.
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4 - Severe Flooding
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9 ft |
Extensive flooding, similar to February 2020, or greater throughout Issaquah and Tibbetts Creek valleys. Issaquah-Hobart Rd SE and SR 900 may close due to water and debris over roadway. Maximum flood-fighting effort in effect.
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