USGS Water-Year Summary 2023
01477800 SHELLPOT CREEK AT WILMINGTON, DE
LOCATION - Lat 39°45'39.5", long 75°31'07.3" referenced to North American Datum of 1983, New Castle County, DE, Hydrologic Unit 02040205, on right bank 100 ft east of intersection of 44th and Pine Streets in Clifton Park, 700 ft downstream from bridge on North Market Street in Wilmington, 0.2 mi downstream from Matson Run, and 2.3 mi upstream from mouth.
DRAINAGE AREA - 7.46 mi².
REVISIONS HISTORY - WSP 1382: 1948(m). https://waterdata.usgs.gov/nwis/dv/?site_no=01477800: 2011-2014.
SURFACE-WATER RECORDS
PERIOD OF RECORD - December 1945 to current year.
GAGE -
Water-stage recorder, concrete control and crest stage gage. From June 1, 2022 to present, datum of gage listed as 14.04 ft above North American Vertical Datum of 1988. From 2012 to June 1, 2022, datum of gage listed as 14.15 ft above North American Vertical Datum of 1988. Prior to 2012, datum of gage listed 15.16 ft above National Geodetic Vertical datum of 1929.
EXTREMES OUTSIDE PERIOD OF RECORD - Maximum stage known since at least 1940, that of July 5, 1989. Flood of Aug. 1, 1945, reached a stage of about 8.5 ft, from floodmarks.