Susquehanna River near Waverly
Flood levels
Official flood levels at this gauge: action stage begins at 12.0 ft; minor flooding begins at 13.0 ft; moderate flooding begins at 16.0 ft; major flooding begins at 20.0 ft.
| Action stage | 12.0 ft |
|---|---|
| Minor flooding | 13.0 ft |
| Moderate flooding | 16.0 ft |
| Major flooding | 20.0 ft |
Highest recorded crests
- 26.7 ft on Sep 8, 2011 (historic crest)
- 22.5 ft on Jun 29, 2006 (historic crest)
- 21.4 ft on Mar 18, 1936 (historic crest)
- 21.2 ft on Jun 23, 1972 (historic crest)
What the water does
National Weather Service impact statements for this gauge, in the Weather Service's own words.
| 12.0 ft | Out of bank flows increase in the flood plain near the towns of Barton and Nichols, NY and the Township of Athens, PA. The Cannon Hole neighborhood is affected by flooding. Monitoring of levee gates and pumps occurs in Sayre. |
|---|---|
| 13.0 ft | Flood stage. Widespread, but minor, flooding of the lowlands occurs along the river from the towns of Barton and Nichols, NY to the Athens Township, PA. |
| 16.0 ft | Moderate flood stage. Flooding increases throughout Tioga Point on both sides of the river near Athens Borough. Backwater flooding begins to affect areas in Milltown along Cayuta Creek. |
| 17.0 ft | The Athens bridge is closed by flooding affecting the approach lanes on the east side of the river. Winding River Drive is flooded. Wildwood Road is closed in places. Riverfront Park in Sayre is inundated. |
| 20.0 ft | Major flood stage. Severe flooding occurs throughout the flood plain in New York and Pennsylvania. The Sayre Bridge is closed, and access to Sayre and Athens is cut off from the East. |
| 21.2 ft | This was the level of the 1972 Hurricane Agnes flood. |
| 21.4 ft | Severe flooding before the levees were built in March 1936. |
| 22.5 ft | June 2006 flood. Flood waters were at the top of the bank in Athens Borough. Part of the Waste Water Treatment Plant facility was flooded. Some flooding occurred in South Side Athens along River Street. Significant flooding occurred on the east side of river in Athens Township up to Glen Valley Road and Riverside Drive. |
| 23.0 ft | River stage height estimated to be at the effective design protection level of the Sayre levee. |
| 26.0 ft | River stage height estimated to be the top of the Sayre levee system. |
| 26.7 ft | Record flood of September 2011. Widespread severe flooding occurs in Sayre, Athens borough and throughout The Valley in both Pennsylvania and New York sides of the river. The Sayre levee was overtopped. |
Forecast office: NWS Johnson City · River Forecast Center: Middle Atlantic River Forecast Center.
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