Susquehanna River at Unadilla

National Weather Service gauge UNDN6 · New York · Otsego County · 42.3214, -75.3169 · USGS 01500500

Flood levels

Official flood levels at this gauge: action stage begins at 9.0 ft; minor flooding begins at 11.0 ft; moderate flooding begins at 13.0 ft; major flooding begins at 14.5 ft.

Action stage	9.0 ft
Minor flooding	11.0 ft
Moderate flooding	13.0 ft
Major flooding	14.5 ft

Highest recorded crests

17.7 ft on Jun 29, 2006 (historic crest)
16.6 ft on Mar 18, 1936 (historic crest)
16.3 ft on Sep 9, 2011 (historic crest)
16.0 ft on Jul 8, 1935 (historic crest)

What the water does

National Weather Service impact statements for this gauge, in the Weather Service's own words.

11.0 ft	Minor flooding begins to impact fields and some properties in Unadilla between Main Street and River Road.
13.0 ft	Moderate 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.
14.5 ft	Major 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.
15.0 ft	Sherman Ave., Bridge St., Willow St., and Cross Street in Sidney are flooded. Amphenol and the Waste Water Treatment Plant in Sidney are flooded.
16.0 ft	Severe 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.
16.3 ft	Widespread severe flooding occurred during the September 2011 flood.
17.0 ft	The water treatment building and the Press building in Sidney are inundated.
17.5 ft	Main Street in Sidney is flooded up to Smith Street.
17.7 ft	This was the record flood of June 2006. Deep flooding was widespread and severe throughout Unadilla.

Forecast office: NWS Johnson City · River Forecast Center: Middle Atlantic River Forecast Center.

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Nearby stations and gauges

Carrs Creek near Sidney Center NWS gauge · 4.0 mi
Ouleout Creek below East Sidney Dam NWS gauge · 4.3 mi
Ouleout Creek at East Sidney Dam NWS gauge · 4.5 mi
Susquehanna River at Sidney NWS gauge · 4.9 mi
Unadilla River at Rockdale NWS gauge · 6.0 mi
Susquehanna River at Bainbridge NWS gauge · 8.4 mi