USGS Surface Water for USA: Peak Streamflow

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Peak Streamflow for the Nation

USGS 09482450 WEST BRANCH SANTA CRUZ RIVER AT TUCSON, ARIZ.

Pima County, Arizona

Hydrologic Unit Code 15050301

Latitude 32°08'00", Longitude 111°00'30" NAD27

Drainage area 23.60 square miles

Gage datum 2,475 feet above NGVD29

Water Year	Date	Gage Height (feet)	Stream- flow (cfs)
1966	1966-08-19	3.10	75.0²
1967	1967-07-17	2.93	130²
1968	1968-08-10	6.54	480
1969	1969-08-08	3.13	318
1970	1970-07-19	2.44	75.0²
1971	1971-08-17	4.67	540
1972	1972-07-16	2.06	190
1973	1973-08-23	2.20	80.0
1974	1974-06-25	2.00	110
1975	1975-09-09	3.00	190
1976	1976-09-25	6.91	910
1977	1977-09-09	6.09	350
1978	1977-10-06	7.61	910
1979	1978-12-18	3.43	50.0
1980	1980-09-25	4.34	150
1981	1981-07-29	8.02	760

Peak Streamflow Qualification Codes.

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

Page Contact Information: USGS Water Data Support Team
Page Last Modified: 2025-07-09 22:02:02 EDT
0.35 0.34 nadww01