USGS Water-Year Summary 2024
12120600 ISSAQUAH CREEK NEAR HOBART, WA
LOCATION - Lat 47°27'27", long 122°00'14" referenced to North American Datum of 1927, in NE 1/4 NW 1/4 sec.26, T.23 N., R.6 E., King County, WA, Hydrologic Unit 17110012, on left bank 20 ft downstream from highway bridge, 2.9 mi northwest of Hobart, and 10.2 mi upstream from mouth, 1.6 mi northwest of Issaquah, and at mile 33.1 (continuation of Sammamish River).
DRAINAGE AREA - 17.6 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1986 to current year.
GAGE - Water-stage recorder and crest-stage gage. Elevation of gage is 300 ft above NGVD of 1929, from topographic map.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 1,360 ft³/s, Nov. 24, 1990, Nov. 6, 2006; maximum gage height, 9.90 ft, Nov. 24, 1990; minimum daily discharge, 5.4 ft³/s, Sept. 18, 1992.