Issaquah Creek Flooding Information
Map, gage readings, and recent peak flow data
The following information has been provided by the City of Issaquah. The City of Issaquah Flood Warning System provides residents with a way to obtain information on impending floodwaters so that they can take proper defensive actions and prepare themselves before serious flooding occurs.
- City of Issaquah Public Works Operations 425-837-3470
For assistance with drainage and flooding problems, Weekdays 7:30-4:00
(24-hours during Phase 2 and higher phases)
- City of Issaquah Emergency Information Line 425-837-3028
Up-to-date information on City Emergency Information Line or on TV 21
Issaquah Creek at Hobart gage data
via United States Geological Survey (USGS)
| Phase Threshold for Issaquah Creek |
| Phase I: |
200 c.f.s. |
6.0 ft |
| Phase II: |
500 c.f.s. |
7.0 ft |
| Phase III: |
800 c.f.s. |
8.0 ft |
| Phase IV: |
1,000 c.f.s. |
8.5 ft |
Recent Peak Flow Data Summary:
Issaquah Creek at Hobart |
| November, 1990 |
1,360 c.f.s. |
10 ft |
| November, 1995 |
955 c.f.s. |
|
| February, 1996 |
1,240 c.f.s. |
9.4 ft |
| November, 25 1998 |
748 c.f.s. |
8.27 ft |
| December, 27 1998 |
647 c.f.s. |
7.95 ft |
For questions about the King County Flood Warning System, please contact Ken Zweig, River and Floodplain Management Unit Section.
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