Chemung River at Corning, Steuben County NY (CRNN6)
Gage Location: Steuben County, New YorkSite Location: Steuben County, New York
Latitude: 42.146Longitude: -77.058Elevation: 900 ft. MSLDrainage Area: 2006 Sq. Mi.
Minor Stage: 29 ft. Moderate Stage: 30 ft.Major Stage: 36 ft.
First Flood: 1889-06-01Last Flood: 1975-09-26 Crest: 32.46 ft.Datum change: 1974-10-01Number of Floods: 24

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Date of FloodCrest(ft)Streamflow(cfs)CategoryCode
1889-06-0133.34-9999ModerateC1 C4
1913-03-2729.44-9999MinorC1
1914-03-2829.94-9999MinorC1
1916-06-1731.74-9999ModerateC1
1918-03-1432.14-9999ModerateC1
1920-03-1330.54-9999ModerateC1
1929-04-2129.74-9999MinorC1
1935-07-0733.49-9999ModerateC1
1936-03-1232.64-9999ModerateC1
1940-04-0133.44-9999ModerateC1
1941-04-0630.09-9999ModerateC1
1942-03-0930.94-9999ModerateC1
1942-12-3030.94-9999ModerateC1
1946-05-2837.74-9999MajorC1
1947-04-0630.34-9999ModerateC1
1948-03-2230.34-9999ModerateC1
1950-03-2931.24-9999ModerateC1
1950-11-2631.34-9999ModerateC1
1951-03-3131.34-9999ModerateC1
1955-10-1530.84-9999ModerateC1
1956-03-0729.34-9999MinorC1
1964-03-0530.34-9999ModerateC1
1972-06-2340.71228000MajorC1 F1 F3
1975-09-2632.46127000Moderatenone



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: 07:20 AM Nov 12, 2013