Brandywine Creek at Wilmington, New Castle County DE (WMND1)
Gage Location: New Castle County, DelawareSite Location: New Castle County, Delaware
Latitude: 39.769Longitude: -75.574Elevation: 68.23 ft. MSLDrainage Area: 314 Sq. Mi.
Minor Stage: 16.5 ft. Moderate Stage: 18 ft.Major Stage: 19 ft.
First Flood: 1950-11-25Last Flood: 2014-05-01 Crest: 20.7 ft.Datum change: 2008-10-01Number of Floods: 24

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Date of FloodCrest(ft)Streamflow(cfs)CategoryCode
1950-11-2511.3411500MinorC1 G1
1955-08-1311.7612600MinorC1 G1
1955-08-1913.8917800ModerateC1 G1
1960-09-1311.4215600MinorC1 G1
1971-02-1411.8614100MinorC1 G1
1971-09-1313.8321300ModerateC1 G1
1972-06-2315.4929000MajorC1 G1
1978-01-2612.7817200MinorC1 G1
1979-01-2513.2222400ModerateC1 G1
1979-02-2611.3715300MinorC1 G1
1996-01-2012.6917800MinorC1 G1
1996-10-1911.9115200MinorC1 G1
1999-09-1715.4328700MajorC1 G1
2000-03-2211.9915500MinorC1 G1
2003-06-2111.8114915MinorC1 G1
2003-09-1512.7317900MinorC1 G1
2004-09-2913.5220800ModerateC1 G1
2006-06-2812.4617000MinorC1 G1
2010-10-0117.69-9999Minornone
2011-03-1117.3416100Minornone
2011-08-2818.7116800Moderatenone
2011-09-0816.712900Minornone
2012-10-3116.699520Minornone
2014-05-0120.7-9999Majornone



Codes and description

C1|Crest information during this period may be incomplete and therefore was not used in frequency calculations. Some of the floods are based on current flood stage and nearby gage information.
C2|Crest information during this period looks reliable despite potential problems. This data was used in frequency calculations.
C3|Crest height estimated by the USGS.
C4|Crest height is from the National Weather Service.
C5|Crest height affected by backwater.
C6|Crest occurred at a previous flood stage that is lower than the current flood stage. The crests below the new flood stage are not used in flood frequency calculations.
C7|Crest from USGS yearly peak and/or date is different than the crest we provide. In many cases MARFC uses crest based on backwater or ice effects.
C8|Crest month or day of occurrence has been estimated by The Middle Atlantic River Forecast Center usually based on nearby gage information.
C9|Crest date (day) in the month is unknown.
F1|Flow is an estimate.
F2|Flow affected by regulation or diversion and in some cases to an unknown degree.
F3|Flow effected by snow-melt, ice jam or debris jam break up.
F4|Flow affected by dam failure.
F5|Flow - All or part of the record affected by urbanization, mining, agricultural changes, channelization or other factors.
G1|Gage height at a different site and/or datum.
G2|Gage is not an official USGS gage with crests provided by the NWS. Crest information looks unreliable and incomplete and not used in flood frequency calculations.
G3|Gage datum changed during this year.
none,No code; Good Data

Updated: 07:31 AM Dec 19, 2014