Brandywine Creek at Chadds Ford, Delaware County PA (CDFP1)
Gage Location: Delaware County, PennsylvaniaSite Location: Delaware County, Pennsylvania
Latitude: 39.87Longitude: -75.594Elevation: 150.45 ft. MSLDrainage Area: 287 Sq. Mi.
Minor Stage: 9 ft. Moderate Stage: 11 ft.Major Stage: 13 ft.
First Flood: 1912-02-21Last Flood: 2014-05-01 Crest: 16.05 ft.Datum change: 1962-10-01Number of Floods: 132

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Date of FloodCrest(ft)Streamflow(cfs)CategoryCode
1912-02-211210600ModerateC1
1912-03-1311.69800ModerateC1
1912-03-15106840MinorC1
1915-01-0710.47520MinorC1
1915-01-12118620ModerateC1
1915-02-0211.39200ModerateC1
1915-08-0414.716500MajorC1
1918-01-1211.810200ModerateC1
1918-02-13106840MinorC1
1918-02-169.35750MinorC1
1918-03-2695320MinorC1
1919-07-2210.257180MinorC1
1920-03-051517200MajorC1
1924-01-17106840MinorC1
1924-02-2095320MinorC1
1924-04-069.25600MinorC1
1924-09-309.66200MinorC1
1925-02-1110.57700MinorC1
1926-02-259.45900MinorC1
1927-09-1910.17010MinorC1
1927-11-189.56050MinorC1
1928-06-069.45900MinorC1
1928-08-18118620ModerateC1
1929-02-279.776520MinorC1
1931-07-1010.88240MinorC1
1932-03-289.065460MinorC1
1933-08-049.696360MinorC1
1933-08-2414.0114800MajorC1
1935-07-09107000MinorC1
1935-11-189.516050MinorC1
1936-01-0311.219000ModerateC1
1936-01-0910.087010MinorC1
1936-03-129.466050MinorC1
1938-06-2711.379400ModerateC1
1938-07-2310.457520MinorC1
1939-02-049.085460MinorC1
1939-08-2010.728060MinorC1
1940-03-049.135460MinorC1
1940-03-159.656190MinorC1
1942-08-0914.816800MajorC1
1942-12-309.085360MinorC1
1944-01-0410.67880MinorC1
1945-01-029.14360MinorC1
1945-09-1910.878240MinorC1
1946-06-0210.027110MinorC1
1946-07-2311.148810ModerateC1
1948-09-109.646190MinorC1
1948-12-309.15360MinorC1
1950-11-2512.5411600ModerateC1
1951-02-089.676360MinorC1
1951-11-079.455900MinorC1
1951-12-219.496050MinorC1
1952-03-119.095460MinorC1
1952-04-289.045320MinorC1
1952-11-229.556200MinorC1
1952-12-119.516050MinorC1
1953-01-249.636200MinorC1
1955-08-1914.6416400MajorC1
1963-03-069.445900Minornone
1964-01-1010.167110Minornone
1965-02-089.776470Minornone
1966-02-1410.998600Minornone
1967-03-0710.57700Minornone
1968-06-13106840Minornone
1969-07-2810.817270Minornone
1970-04-039.195310Minornone
1971-02-0810.617360Minornone
1971-02-1312.8411200Moderatenone
1971-08-2811.478700Moderatenone
1971-09-1314.3914300Majornone
1971-10-109.395710Minornone
1972-06-2216.5623800Majornone
1972-11-149.646300Minornone
1973-06-3012.4611400Moderatenone
1973-12-219.996790Minornone
1975-07-1411.69600Moderatenone
1978-01-2614.1115700MajorF2
1979-01-2514.3516400MajorF2
1982-01-049.035310MinorF2
1983-04-109.596200MinorF2
1983-12-1311.248450ModerateF2
1985-02-1311.468700ModerateF2
1988-05-199.295640MinorF2
1990-05-309.185600MinorF2
1993-03-0510.918110MinorF2
1994-01-281210100ModerateF2
1995-03-0910.327430MinorF2
1996-01-2014.2315100MajorF2
1996-10-1913.3112500MajorF2
1998-04-029.245150MinorF2
1999-09-1717.1526900MajorF2
2000-03-2212.7113700ModerateF2
2000-12-1710.658400MinorF2
2003-02-2210.017050MinorF2
2003-06-2112.8214022ModerateF2
2003-09-1513.7416700MajorF2
2003-09-239.155529MinorF2
2003-10-2810.137290MinorF2
2003-12-1110.427895MinorF2
2004-02-0711.089432ModerateF2
2004-09-199.867370MinorF2
2004-09-2913.6216300MajorF2
2004-11-2810.368180MinorF2
2005-01-149.416640MinorF2
2005-03-299.516800MinorF2
2005-04-039.87270MinorF2
2005-10-0912.312700ModerateF2
2006-06-2710.097740MinorF2
2006-06-2813.6516400MajorF2
2007-03-0210.899050MinorF2
2007-04-1510.468340MinorF2
2007-04-279.667040MinorF2
2008-02-139.026030MinorF2
2008-12-129.677060MinorF2
2009-12-099.767200MinorF2
2009-12-279.727140MinorF2
2010-03-14107600MinorF2
2010-10-0112.9414300moderateF2
2011-03-1111.8811600ModerateF2
2011-04-179.586910MinorF2
2011-08-2815.2318300MajorF2
2011-09-0710.147820MinorF2
2011-09-0811.711100ModerateF2
2011-09-2410.919080MinorF2
2011-11-2310.136760MinorF2
2011-12-089.957520MinorF2
2012-10-3112.29410ModerateF2
2012-12-219.115570MinorF2
2013-01-319.25670MinorF2
2013-08-1311.728780ModerateF2
2013-10-119.475880MinorF2
2014-05-0116.0522200MajorF2



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