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: 2013-10-11 Crest: 9.47 ft.Datum change: 1962-10-01Number of Floods: 131

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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



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: 12:14 PM Nov 15, 2013