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 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