Susquehanna River at Marietta, Lancaster County PA (MRTP1)
Gage Location: Lancaster County, PennsylvaniaSite Location: Lancaster County, Pennsylvania
Latitude: 40.054Longitude: -76.531Elevation: 200.56 ft. MSLDrainage Area: 25990 Sq. Mi.
Minor Stage: 49 ft. Moderate Stage: 52 ft.Major Stage: 54 ft.
First Flood: 1889-06-02Last Flood: 2011-09-09 Crest: 58.16 ft.Datum change: 1931-10-01Number of Floods: 36

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MINOR FLOODS
Date of FloodCrest(ft)
1933-08-2549.44
1942-05-2449.63
1948-04-1649.67
1950-03-3049.29
1952-03-1350.33
1956-03-1050.25
1960-04-0251.31
1961-02-2751.82
1970-04-0450.47
1981-02-2449.56
1986-03-1651.52
1994-03-2651.01
1998-01-1050.17
2005-01-1649.1
2005-03-3050.25
2005-04-0451.71
2008-03-0650.63
2010-01-2749.58
2011-04-2951.15
MODERATE FLOODS
Date of FloodCrest(ft)
1940-04-0253.33
1943-01-0153.2
1950-11-2752.96
1979-03-0753.21
1984-02-1653.49
1993-04-0253.21
2006-06-2952.53
2011-03-1252.86
MAJOR FLOODS
Date of FloodCrest(ft)
1889-06-0258.3
1936-03-1960.73
1946-05-2954.9
1964-03-1254.03
1972-06-2364.54
1975-09-2755.73
1996-01-2156.8
2004-09-2056.28
2011-09-0958.16
MISSING
Date of FloodCrest(ft)



Categorical Floods by Month
MonthMinor
After
Datum
Minor
Total
Moderate
After
Datum
Moderate
Total
Major
After
Datum
Major
Total
Missing
After
Datum
Missing
Total
January33111100
February22110000
March77222200
April55220000
May11001100
June00111200
July00000000
August11000000
September00003300
October00000000
November00110000
December00000000


Categorical Floods by Season
SeasonMinorModerateMajorMissing
Fall0130
Winter5210
Spring13430
Summer1120