USGS Water-Year Summary 2024
12095000 SOUTH PRAIRIE CREEK AT SOUTH PRAIRIE, WA
LOCATION - Lat 47°08'23", long 122°05'29" referenced to North American Datum of 1927, in NE 1/4 NW 1/4 sec.18, T.19 N., R.6 E., Pierce County, WA, Hydrologic Unit 17110014, on downstream side of bridge on State Highway 162, 0.8 mi downstream from Wilkeson Creek, 0.3 mi east of South Prairie, and at mile 5.9.
DRAINAGE AREA - 79.5 mi².
REVISIONS HISTORY - WSP 1932: Drainage area. WDR WA-96-1: 1980(M), 1991(P). Discharge for the period Feb. 7, 2020 to May 30, 2024 was revised on Oct. 19, 2024 based on changes to the stage-discharge rating.
SURFACE-WATER RECORDS
PERIOD OF RECORD - June 1949 to September 1971, October 1987 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 400.0 ft above NGVD of 1929 (from topographic map) and is 403.50 ft above NAVD of 1988 (levels survey by USGS on June 27, 2022). June 1949 to June 1969, water-stage recorder at site 70 ft downstream at different datum. June 1969 to September 1971, at site 330 ft upstream at different datum. October 1987 to Aug. 29, 2012, at site 330 ft upstream at same datum.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 9,480 ft³/s, Jan. 7, 2009, gage height, 36.02 ft, site then in use; minimum discharge, 13.0 ft³/s, several days in Aug., Sept., 2023.