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Water-Year Summary for Site 12108800

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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
00065 Gage height(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
12108800 GREEN RIVER BELOW CRISP CREEK NEAR BLACK DIAMOND, WA
LOCATION - Lat 47°17'05.4", long 122°04'58.4" referenced to North American Datum of 1983, in sec.30, T.21 N., R.6 E., King County, WA, Hydrologic Unit 17110013, on right bank, 4.1 mi southwest of Black Diamond, 200 ft downstream from Crisp Creek, and at river mile 40.0.
SURFACE-WATER RECORDS
PERIOD OF RECORD - August 2021 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is NAVD of 1988. 
REMARKS -

Since Dec. 5, 1961, flow regulated by Howard A. Hanson Reservoir (station 12105800), approximately 21 mi upstream, for flood control and during summer months to augment the natural river flow. City of Tacoma diverts flow approximately 17 miles upstream from station for municipal supply, of which a small amount is returned to the river upstream from station.

City of Tacoma diverted the following average daily discharges from river at headworks near Palmer, 50.6 mi upstream from station, for municipal use:

   Water Year       Discharge   
(cfs)		    Water Year        Discharge   
(cfs)		    Water Year       Discharge   
(cfs)		    Water Year       Discharge   
(cfs)
2021 95.0 2022 96.0        

C

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 8,110 ft³/s, Mar. 1, 2022, gage height, 143.80 ft; minimum discharge, 217 ft³/s, Aug. 11-12, 2021, gage height, 138.06 ft.