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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
01583600 BEAVERDAM RUN AT COCKEYSVILLE, MD
LOCATION - Lat 39°29'08.1", long 76°38'44.6" referenced to North American Datum of 1983, Baltimore County, MD, Hydrologic Unit 02060003, on left bank of bridge on Maryland Route 45 (York Road) at Cockeysville, and 0.45 mi upstream from mouth.
DRAINAGE AREA - 20.9 mi².
REVISIONS HISTORY - WDR MD-DE-88: 1983-87.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1982 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 239.70 ft above North American Vertical Datum of 1988. Previously operated as a low-flow partial-record station during water years 1955-59 and 1962-64 at same site. Dec. 15, 1982 to June 15, 1993, water-stage recorder 600 ft downstream and 50 ft upstream from bridge on Beaverdam Run Lane at gage datum 1.38 ft lower.
REMARKS - Water Year 2023: Records poor, including those for estimated discharge
Water Years 2021-2022: Records poor. No estimated discharges.
Water Year 2020: Records poor, including those for estimated discharges.
Water Years 2017-2019: Records good, except those above 100 ft³/s, and those for estimated discharges, which are poor.
Water Years 2015-2016: Records good, except those above 100 ft³/s, and those for estimated daily discharges, which are poor.
Water Year 2014: Records good, except those for estimated daily discharges, which are poor.
Water Year 2013 and prior years' accuracy statements can be found in Annual Water Data Reports.
Diurnal fluctuation from quarry operations upstream from station. U.S. Geological Survey satellite data-collection platform at station.
Diurnal fluctuation from quarry operations upstream from station. U.S. Geological Survey satellite data-collection platform at station.
EXTREMES OUTSIDE PERIOD OF RECORD - Maximum discharge known, 3,950 ft³/s on July 21, 1956, on basis of contracted-opening measurement of peak flow at site approximately 0.25 mi downstream of Maryland Route 45 (York Road).
