Schuylkill River at Reading, Berks County PA (RDRP1)
Gage Location: Berks County, PennsylvaniaSite Location: Berks County, Pennsylvania
Latitude: 40.335Longitude: -75.937Elevation: 185.5 ft. MSLDrainage Area: 880 Sq. Mi.
Minor Stage: 15.5 ft. Moderate Stage: 18 ft.Major Stage: 22 ft.
First Flood: 1869-10-04Last Flood: 2011-09-08 Crest: 20.41 ft.Datum change: 2011-08-17Number of Floods: 18

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Date of FloodCrest(ft)Streamflow(cfs)CategoryCode
1972-06-2331.390000MajorC1 C4
1979-01-2517.3637500ModerateC1 F2
1979-02-2613.4325600MinorC1 F2
1983-04-1617.533100ModerateC1 F2
1983-12-1416.0928100ModerateC1 F2
1985-09-2716.098100ModerateC1 F2
1988-05-1913.6421700MinorC1 F2
1989-05-0615.126000MinorC1 F2
1993-11-2815.426900MinorC1 F2
1996-01-2015.8528600MinorC1 F2
1996-10-1915.8328500MinorC1 F2
1999-09-1714.9526100MinorC1 F2
2004-09-1816.2429700ModerateC1 F2
2006-06-2823.7555100MajorC1 F2
2011-03-1115.0126200MinorC1 F2

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: 12:29 PM Mar 10, 2015