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Water-Year Summary for Site 12091100

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
00060 Discharge(Mean)  
00065 Gage height(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
12091100 FLETT CREEK AT TACOMA, WA
LOCATION - Lat 47°11'19.89", long 122°31'12.37" referenced to North American Datum of 1983, in NE 1/4 SW 1/4 sec.26, T.20 N., R.2 E., Pierce County, WA, Hydrologic Unit 17110019, on right bank upstream of 75th Street bridge, 0.6 mi upstream from mouth and 0.7 mi west of city limits of Tacoma.
DRAINAGE AREA - 7.33 mi². excludes 0.68 mi² storm drainage diverted to Leach Creek basin.
REVISIONS HISTORY - WSP 1932: Drainage area. Discharge for the period Feb. 12, 2019 to June 24, 2020 was revised on Dec. 21, 2020 and June 10, 2022, based on changes to the stage-discharge rating.
SURFACE-WATER RECORDS
PERIOD OF RECORD - June 1959 to September 1985, October 1985 to September 1996 (seasonal records). October 1996 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 189.32 ft above NGVD of 1929 (levels by USGS National Mapping Division). Prior to Oct. 11, 2000, at site 150 feet downstream and at datum 5.74 feet higher. Oct. 11, 2000, to July 27, 2012, at site 80 ft upstream at same datum.
REMARKS - Storm sewer drainage upstream from station. Several diversions for irrigation and industrial use. At times during winter months 1,000 gpm (~ 2cfs) is pumped into creek for short intervals from Mountain View Memorial Park. Since October 1979, Flett Creek flood control retention ponds store and release flood water upstream from station. Chemical analyses October 1964 to September 1965. U.S. Geological Survey satellite telemeter at station. 
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 203 ft³/s, Feb. 8, 1996, gage height, 3.08 ft, site and datum then in use, from rating curve extended above 115 ft³/s; minimum discharge, 0.02 ft³/s, many days Sept. to Oct. 2015 and Aug. to Sept. 2018.