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Notice - The USGS Water Resources Mission Area's priority is to maintain the safety and well-being of our communities, including providing critical situational awareness in times of flooding in all 50 U.S. states and additional territories. Our hydrologic monitoring stations continue to send data in near real-time to NWISWeb, and we are continuing critical water monitoring activities to protect life and property on a case-by-case basis. The health and safety of the public and our employees are our highest priorities, and we continue to follow guidance from the White House, the CDC, and state and local authorities.
LOCATION.--Lat 39°45'39.5",long 75°31'07.3", 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. PERIOD OF RECORD.--December 1945 to current year. REVISIONS HISTORY.--WSP 1382: 1948(m). https://waterdata.usgs.gov/nwis/dv/?site_no=01477800: 2011-2014. GAGE.--Water-stage recorder, concrete control and crest-stage gage. Datum of gage is 14.15 ft above North American Vertical Datum of 1988. REMARKS.--Occasional regulation at low flow from unknown source upstream from station. U.S. Geological Survey satellite data-collection platform at station. EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 8,040 ft3/s, July 5, 1989, gage height, 13.76 ft; minimum discharge, 0.09 ft3/s, October 2, 1968. 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. COOPERATION.--Funding for the operation of this station is provided by the Delaware Geological Survey, and the U.S. Geological Survey. CRITICAL LEVELS.--Flood stage; 8.0 ft (2,540 ft3/s), information provided by the National Weather Service.
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