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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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USGS Water-Year Summary 2024
01601500 WILLS CREEK NEAR CUMBERLAND, MD
LOCATION - Lat 39°40'10.6", long 78°47'16.9" referenced to North American Datum of 1983, Allegany County, MD, Hydrologic Unit 02070002, on right bank at downstream side of railway bridge, 0.15 mi downstream from Braddock Run, 2.0 mi upstream from Cumberland, and mouth.
DRAINAGE AREA - 247 mi².
REVISIONS HISTORY - WSP 726: Drainage area. WSP 1432: 1906, 1930(M), 1933-34(M), 1936-37, 1945(M).
SURFACE-WATER RECORDS
PERIOD OF RECORD - May 1905 to July 1906 (published as "at Cumberland"). October 1929 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 640.27 ft above North American Vertical Datum of 1988. May 6, 1905, to July 14, 1906, nonrecording gage at highway bridge 700 ft upstream at different datum. Oct. 18, 1929, to Mar. 17, 1936, water-stage recorder, and Apr. 1, 1936, to Mar. 19, 1937, nonrecording gage at site 200 ft upstream at present gage datum.
REMARKS - Water Years 2017-2023: Records good, except those for estimated discharges, which are poor.
Water Years 2014-2016: 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.
Records include drainage from numerous active and abandoned coal mines. Groundwater flow is diverted into the basin from the Georges Creek basin by Hoffman Drainage Tunnel (see station 01601420, continuous record, July 2015 to July 2021). Miscellaneous measurements of discharge from the Hoffman Drainage Tunnel have been made in water years 1944, 1964-65, 1967-82, and 1984 by the U.S. Geological Survey, and in water years 1958 and 1959 by the Maryland Geological Survey. Slight diurnal fluctuation at low flow caused by quarry upstream. U.S. Army Corps of Engineers satellite data-collection platform at station.
Records include drainage from numerous active and abandoned coal mines. Groundwater flow is diverted into the basin from the Georges Creek basin by Hoffman Drainage Tunnel (see station 01601420, continuous record, July 2015 to July 2021). Miscellaneous measurements of discharge from the Hoffman Drainage Tunnel have been made in water years 1944, 1964-65, 1967-82, and 1984 by the U.S. Geological Survey, and in water years 1958 and 1959 by the Maryland Geological Survey. Slight diurnal fluctuation at low flow caused by quarry upstream. U.S. Army Corps of Engineers satellite data-collection platform at station.
