Juniata River at Lewistown, Mifflin County PA (LWSP1)
Gage Location: Mifflin County, PennsylvaniaSite Location: Mifflin County, Pennsylvania
Latitude: 40.594Longitude: -77.583Elevation: 443.83 ft. MSLDrainage Area: 2519 Sq. Mi.
Minor Stage: 23 ft. Moderate Stage: 27 ft.Major Stage: 28 ft.
First Flood: 1889-06-01Last Flood: 2004-09-19 Crest: 31.68 ft.Datum change: 1988-06-01Number of Floods: 9

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Height Above Flood Stage for Entire Period of Record
Height Above FSTotal OccurencePercent of Crest OccurrenceCumulative Total Flood OccurrencePercent of Floods above Listed Value
23 ft to 24 ft222.223 ft or above 9100.0
24 ft to 25 ft00.024 ft or above 777.8
25 ft to 26 ft00.025 ft or above 777.8
26 ft to 27 ft00.026 ft or above 777.8
27 ft to 28 ft111.127 ft or above 777.8
28 ft to 29 ft00.028 ft or above 666.7
29 ft to 30 ft00.029 ft or above 666.7
30 ft to 31 ft00.030 ft or above 666.7
31 ft to 32 ft222.231 ft or above 666.7
32 ft to 33 ft111.132 ft or above 444.4
33 ft to 34 ft00.033 ft or above 333.3
34 ft to 35 ft00.034 ft or above 333.3
35 ft to 36 ft00.035 ft or above 333.3
36 ft to 37 ft00.036 ft or above 333.3
37 ft to 38 ft00.037 ft or above 333.3
38 ft to 39 ft00.038 ft or above 333.3
39 ft to 40 ft00.039 ft or above 333.3
40 ft to 41 ft00.040 ft or above 333.3
41 ft to 42 ft00.041 ft or above 333.3
42 ft to 43 ft111.142 ft or above 333.3
43 ft to 44 ft222.243 ft or above 222.2
Height Above Flood Stage After Datum Change
Height Above FSTotal OccurencePercent of Crest OccurrenceCumulative Total Flood OccurrencePercent of Floods above Listed Value
23 ft to 24 ft133.323 ft or above 3100.0
24 ft to 25 ft00.024 ft or above 266.7
25 ft to 26 ft00.025 ft or above 266.7
26 ft to 27 ft00.026 ft or above 266.7
27 ft to 28 ft00.027 ft or above 266.7
28 ft to 29 ft00.028 ft or above 266.7
29 ft to 30 ft00.029 ft or above 266.7
30 ft to 31 ft00.030 ft or above 266.7
31 ft to 32 ft266.731 ft or above 266.7
32 ft to 33 ft00.032 ft or above 00.0
33 ft to 34 ft00.033 ft or above 00.0
34 ft to 35 ft00.034 ft or above 00.0
35 ft to 36 ft00.035 ft or above 00.0
36 ft to 37 ft00.036 ft or above 00.0
37 ft to 38 ft00.037 ft or above 00.0
38 ft to 39 ft00.038 ft or above 00.0
39 ft to 40 ft00.039 ft or above 00.0
40 ft to 41 ft00.040 ft or above 00.0
41 ft to 42 ft00.041 ft or above 00.0
42 ft to 43 ft00.042 ft or above 00.0
43 ft to 44 ft00.043 ft or above 00.0