Susquehanna River at Unadilla, NY
River level and flood forecast · Otsego County
The river is 7.6 ft below flood stage (11 ft).
Forecast to rise to 3.8 ft Wed 8 PM, below the 11 ft flood stage.
Flow: 742 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Mon, Oct 12, 2:48 PM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 14.5 ft |
| Moderate flood stage | 13 ft |
| Flood stage | 11 ft |
| Action stage | 9 ft |
| Record crest (June 29, 2006) | 17.72 ft |
What floods at each level
From the National Weather Service, highest first.
- 17.7 ftThis was the record flood of June 2006. Deep flooding was widespread and severe throughout Unadilla.
- 17.5 ftMain Street in Sidney is flooded up to Smith Street.
- 17 ftThe water treatment building and the Press building in Sidney are inundated.
- 16.3 ftWidespread severe flooding occurred during the September 2011 flood.
- 16 ftSevere flooding occurs throughout most of the Village of Unadilla as water spreads toward Railroad Street. Route 7 flooded in many areas. Clinton St., Grand St., and Avery St., along with the fire station in Sidney are flooded.
- 15 ftSherman Ave., Bridge St., Willow St., and Cross Street in Sidney are flooded. Amphenol and the Waste Water Treatment Plant in Sidney are flooded.
- 14.5 ftMajor flood stage. Several locations in Unadilla on the south side of Main Street are flooded. Water crosses Route 7 near Hopkins Street and floods homes to the north. Adams, Gilbert, Weir, Union Streets and the American Legion in Sidney are flooded.
- 13 ftModerate flood stage. Basement flooding and some first floor dwellings between Main Street and River Road are affected by flooding. This includes properties on Hopkins, Church, Dart and Mill Street.
- 11 ftMinor flooding begins to impact fields and some properties in Unadilla between Main Street and River Road.
Highest crests on record
- 17.72 ft — June 29, 2006
- 16.6 ft — March 18, 1936
- 16.34 ft — September 9, 2011
- 16 ft — July 8, 1935
- 14.64 ft — March 14, 1977
Recent crests: 11.57 ft (December 19, 2023) · 12.35 ft (April 9, 2022) · 11.57 ft (April 7, 2017) · 16.34 ft (September 9, 2011) · 11.34 ft (April 29, 2011)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (UNDN6); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.