USGS Surface Water for USA: Peak Streamflow

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Peak Streamflow for the Nation

USGS 03049819 Girtys Run above Grant Avenue at Millvale, PA

Allegheny County, Pennsylvania

Hydrologic Unit Code 05010009

Latitude 40°28'40.2", Longitude 79°58'12.1" NAD83

Drainage area 13.4 square miles

Gage datum 716.8 feet above NAVD88

Water Year	Date	Gage Height (feet)	Stream- flow (cfs)
2007	2007-08-09	13.34	3,560²
2009	2009-06-17	10.30	919²
2010	2010-05-31	8.38	1,520
2011	2011-02-28	8.77	1,680
2012	2012-09-18	7.19	1,110
2013	2013-06-26	8.26	1,480
2014	2014-08-12	7.35	1,160²

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: 2025-07-19 14:58:06 EDT
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