Tioughnioga River at Cortland
New York — Water Level & Flood Stage
Located in Cortland County, New York on the Tioughnioga River. Live water level data from USGS gauge 01509000, updated every 15 minutes.
Current Water Level
Gage Height
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Streamflow
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Last Reading
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Flood Stages
Major Flood
12.5 ft
Moderate Flood
10 ft
Minor Flood
8 ft
Action Stage
7 ft
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
What Floods at Each Level
14.07 ft
Record flood of April 2005. Widespread inundation and major flood damage occurred along the river from Cortland to Marathon.
13.02 ft
Severe flooding occurs in areas from the City of Cortland to Marathon with 3-4 feet of water covering many city streets in Cortland. Residents in the Kennedy Parkway area are cutoff by floodwaters. This is the level of the January 1996 rain and snow melt flood.
12.5 ft
Major flood stage. Severe flooding occurs in the Village of Marathon with 4-6 feet of water covering most of the streets in town. Many homes and businesses are inundated to the first floor. Widespread basement flooding occurs in the City of Cortland along River Street and the Yaman Park area.
11.5 ft
Widespread, serious flooding occurs in cellars and up to the first floor of homes and businesses in Marathon. Cellar flooding occurs on the east side of Cortland near Yaman Park. Kellogg Road is covered by water 3-6 feet deep in spots.
10 ft
Moderate flood stage. Some flooding begins to affect roads and basements in the Village of Marathon and the Yaman Park area of Cortland.
8 ft
Minor flood stage. Flooding leads to some closures along Kellogg Road to the south of Cortland.
7 ft
The river spills it/s banks into the low lying flood plain. No impact occurs at this stage.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Apr 3, 2005 | 14.07 ft | 14,200 cfs |
| Apr 3, 2005 | 14.07 ft | 14,200 cfs |
| Apr 4, 1950 | 13.82 ft | 10,000 cfs |
| Apr 4, 1950 | 13.82 ft | 10,000 cfs |
| Dec 30, 1942 | 13.56 ft | 9,920 cfs |
About This Gauge
USGS Site
NWS LID
CRTN6
River
Tioughnioga River
County
Cortland, NY
Coordinates
42.6028°N, 76.1597°W
Get Flood Alerts for Tioughnioga River
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of Tioughnioga River at Cortland?
The Tioughnioga River at Cortland gauge is maintained by USGS (site 01509000) and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for Tioughnioga River at Cortland?
The NWS-defined flood stage for Tioughnioga River at Cortland is 8 feet. Action stage begins at 7 feet. Moderate flooding starts at 10 feet, and major flooding at 12.5 feet.
How do I get alerts when Tioughnioga River rises?
Download StormCast free on Google Play, go to River Gauges, and add Tioughnioga River at Cortland to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category — even when your screen is off.
Where is the Tioughnioga River at Cortland gauge located?
The gauge is located in Cortland County, New York at coordinates 42.6028°N, 76.1597°W. USGS site number: 01509000. Data is provided by the U.S. Geological Survey and the National Weather Service.
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Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey
- Gauge reading may be affected by ice. Forecast flows are unadjusted for ice.