USGS Surface Water for USA: Streamflow Measurements

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Streamflow Measurements for the Nation

USGS 450558121445500 CLACKAMAS LAKE OUTLET NR FOREST ROAD 42, OR

Clackamas County, Oregon

Hydrologic Unit Code 17090011

Latitude 45°05'58.26", Longitude 121°44'54.81" NAD83

Gage datum 3,340 feet above NAVD88

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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
1	1985-08-13 -- --	--	Yes	al	USGS	12.6				Good	VegetationHeavy	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: Oregon Water Data Support Team
Page Last Modified: 2025-09-19 07:59:33 EDT
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