Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

* We've detected you're using a mobile device. Find our Next Generation Station Page here.
Click to hideNews Bulletins
! This page is undergoing modernization with expected decommissioning as key features are added to the modernized pages.
Learn more about our modernization plans to find out which options will suit you best. Next Generation Monitoring Location Page is available now.
A beta version of the My Favorites page is available in WDFN. Try it out and tell us what you think at wdfn@usgs.gov

USGS 01584500 LITTLE GUNPOWDER FALLS AT LAUREL BROOK, MD

PROVISIONAL DATA SUBJECT TO REVISION

Click to hidestation-specific text 

LOCATION.--Lat 39°30'19.3", long 76°25'54.4", Baltimore County, MD, Hydrologic Unit 02060003, 
   on right bank 700 ft upstream from Laurel Brook, 750 ft upstream from bridge on Bottom Road, 
   5 mi southwest of Bel Air, and 10.5 mi upstream from mouth.
DRAINAGE AREA.--36.1 mi2.
PERIOD OF RECORD.--October 1926 to September 1970, monthly discharge only for some periods,
   published in WSP 1302. Annual maximums only, water years 1971-86. October 1998 to current
   year. 
REVISIONS HISTORY--WSP 726: 1927-31, Drainage area. WSP 1502: 1936 (M), 1944-46, 1947-48 (P),
   1949 (M), 1950-51. https://waterdata.usgs.gov/nwis/uv/?site_no=01584500: 2021.
GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 260.62 ft above North 
   American Vertical Datum of 1988, from digital elevation model.
REMARKS.--U.S. Geological Survey satellite data-collection platform at station. 
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 11,800 ft3/s, July 01, 1984, gage height, 11.40 ft;
   minimum discharge, 1.1 ft3/s, Aug. 21, 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.
This station managed by the MD-DE-DC Water Science Center Baltimore office.

Available Parameters Available Period
  
1998-10-01  2025-01-02
2007-10-01  2025-01-02







 (7)
 
  -- or --

 

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

Discharge, cubic feet per second
Most recent instantaneous value: 20.9 01-02-2025   21:15 EST
Graph of Discharge, cubic feet per second

Add up to 2 more sites and replot for "Discharge, cubic feet per second"

?
 
Note



Create presentation-quality / stand-alone graph.   Subscribe to
?
WaterAlert      

See this graph on the Monitoring Location Pages

Share this graph |

Daily discharge, cubic feet per second -- statistics for Jan 2 based on 69 water years of record more
Min
(2002)		 Most Recent
Instantaneous
Value Jan 2		 25th
percen-
tile		 Median Mean 75th
percen-
tile		 Max
(1948)
13.9 20.9 28 40 54 60 226

Gage height, feet
Most recent instantaneous value: 1.24 01-02-2025   21:15 EST
Graph of Gage height, feet

Add up to 2 more sites and replot for "Gage height, feet"

?
 
Note



Create presentation-quality / stand-alone graph.   Subscribe to
?
WaterAlert      

See this graph on the Monitoring Location Pages

Share this graph |