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During cold weather, ice effects on stage, groundwater levels, precipitation and water quality parameters at some stream-gaging stations and wells are likely. Data values reported on these pages may be significantly higher or lower than actual values. Adjustment of data for ice effects can only be done after detailed analysis. Users are encouraged to contact this office for more information on specific stream-gaging stations or wells.
LOCATION.--Lat 38°43'42.0", long 75°33'42.7", Sussex County,DE, Hydrologic Unit 02060008, on left bank at downstream side of highway bridge on county road No. 545, 800 ft downstream from Gum Branch, 2.5 mi southeast of Bridgeville, and 50.5 mi upstream from mouth. DRAINAGE AREA.--75.4 mi2. PERIOD OF RECORD.--April 1943 to current year. Prior to October 1955, published as Gravelly Fork near Bridgeville, DE. REVISED RECORDS.--WSP 1111: 1947. WSP 1232: 1945-49. GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 12.82 ft above North American Vertical Datum of 1988 (levels by Soil Conservation Service). Prior to Apr. 19, 1947, nonrecording gage, and Apr. 19, 1947 to Dec. 18, 1969, recording gage at present site and datum of 13.64 ft above National Geodetic Vertical Datum of 1929 (NGVD) from Soil Conservation Service levels. Timber control Sept. 3, 1947 to Dec. 18, 1969. Feb. 18, 1970 to Oct. 1, 1973, recording gage at site 300 ft downstream at same gage datum. REMARKS.--U.S. Geological Survey satellite data-collection platform at station. EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 3,020 ft3/s, Feb. 26, 1979, gage height, 10.31 ft; minimum discharge, 6.3 ft3/s, Sept. 29, 1943. EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum stage known, about 11.0 ft in September 1935, from information by local residents. COOPERATION.--Funding for the operation of this station is provided by the Delaware Geological Survey and the U.S Geological Survey.
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Value Dec 18