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 204812156061401 Koolau Ditch at Makapipi tunnel, Maui, HI

Maui County, Hawaii

Hydrologic Unit Code 20020000

Latitude 20°48'12.0", Longitude 156°06'13.8" NAD83

Gage datum 1,290 feet above LMSL

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Meas. Number	Date Time	Time Datum	Measurement Used?	Who	Measuring Agency	Stream flow (ft³/s)	Gage Height (ft)	Meas. Duration (hr)	Meas. Rated	Flow Adjust. Code
6	2011-09-12 11:31:30	HST	Yes	RBC/CJR	USGS	2.93	0.75	0.40	Good	NONE
5	2011-09-12 11:04:30	HST	Yes	RBC/CJR	USGS	2.96	0.75	0.40	Good	NONE
4	2011-09-12 10:38	HST	Yes	RBC/CJR	USGS	2.80	0.75	0.40	Good	NONE
3	2011-06-13 13:53	HST	Yes	rbc/cle	USGS	6.43	1.10	0.30	Good	NONE
2	2011-06-13 13:29	HST	Yes	rbc/cle	USGS	6.94	1.10	0.30	Good	NONE
1	2011-06-13 11:26:30	HST	Yes	cle/clc	USGS	8.53	1.10	0.30	Good	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: Hawaii Water Data Support Team
Page Last Modified: 2025-09-22 12:37:40 EDT
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