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

Codes and description

C1|Crest information looks unreliable and incomplete and not used in frequency calculations. Some of the floods are based on current flood stage and nearby gage information.
C2|Crest information 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: 08:00 PM May 28, 2014