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  • Notice - The USGS Water Resources Mission Area's priority is to maintain the safety and well-being of our communities, including providing critical situational awareness in times of flooding in all 50 U.S. states and additional territories. Our hydrologic monitoring stations continue to send data in near real-time to NWISWeb, and we are continuing critical water monitoring activities to protect life and property on a case-by-case basis. The health and safety of the public and our employees are our highest priorities, and we continue to follow guidance from the White House, the CDC, and state and local authorities.

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LOCATION.--Lat 39°40'23.1", long 76°40'30.7", Baltimore County, MD, Hydrologic Unit 02060003, on left bank at downstream side of bridge on Bentley Road, and 0.43 mi upstream from mouth.
DRAINAGE AREA.--9.72 mi2.
PERIOD OF RECORD.--October 1999 to current year.
REVISIONS HISTORY.--WDR-US-2009: 2006-08(P). WDR-US-2011: 2000-10. https://waterdata.usgs.gov/nwis/dv/?site_no=01581960: 2017
GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 486.10 ft above North American Vertical Datum of 1988.
REMARKS.--U.S. Geological Survey satellite data-collection platform at station.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 3,000 ft3/s, July 25, 2018, gage height, 7.30 ft; minimum discharge, 1.1 ft3/s, Aug. 19, 21-23, 2002.
COOPERATION.--Funding for the operation of this station is provided by the Baltimore County Department of Environmental Protection & Sustainability, and the U.S. Geological Survey.
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This station managed by the MD-DE-DC Water Science Center Baltimore office.

Available Parameters Available Period
1999-10-01  2020-04-09
2007-10-01  2020-04-09


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Summary of all available data for this site
Instantaneous-data availability statement

Discharge, cubic feet per second

Most recent instantaneous value: 9.80 04-09-2020   20:15 EDT
Graph of  Discharge, cubic feet per second

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Daily discharge, cubic feet per second -- statistics for Apr 9 based on 20 water years of record more
Most Recent
Value Apr 9
Mean Median 75th
4.99 9.7 9.80 16 17 22 29.4

Gage height, feet

Most recent instantaneous value: 0.85 04-09-2020   20:15 EDT
Graph of  Gage height, feet

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