USGS Surface Water for USA: Streamflow Measurements

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Explore the NEW USGS National Water Dashboard interactive map to access real-time water data from over 13,500 stations nationwide.

Streamflow Measurements for the Nation

USGS 12029200 BLACK RIVER NEAR OAKVILLE, WA

Grays Harbor County, Washington

Hydrologic Unit Code 17100103

Latitude 46°49'50", Longitude 123°11'06" NAD27

Drainage area 130 square miles

Gage datum 80 feet above NGVD29

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Meas. Number	Date Time	Time Datum	Measurement Used?	Who	Measuring Agency	Stream flow (ft³/s)	Gage Height (ft)	GH Change (ft)	Meas. Duration (hr)	Meas. Rated	Control	Flow Adjust. Code
10	2010-08-18 12:19	PDT	Yes	KF/TM/AG	USGS	79.3			0.50	Good	Unspecifed	NONE
9	2007-09-12 12:38	PDT	Yes	JHL/JCT	USGS	50.8				Unspecified	Clear	NONE

U.S. Department of the Interior | U.S. Geological Survey
Title: Surface Water for USA: Streamflow Measurements
URL: https://waterdata.usgs.gov/nwis/measurements?

Page Contact Information: Washington Water Data Support Team
Page Last Modified: 2025-09-23 06:33:51 EDT
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