Unadilla River at Rockdale water level

Name: Unadilla River at Rockdale water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, Unadilla River, New York, United States

Directions

Below flood stage

Water level

4.46ft Down 0.05 ft over the last 24 hours

Measured Oct 20, 2026, 12:30 PM EDT (56 min ago)

Flow: 241 cfs

History

7 days

Water level Forecast Minor flood stage

The forecast expects the river to fall to 4.40 ft by Wednesday, October 21 at 02:00 PM. Issued Tuesday, October 20 at 10:40 AM by NOAA National Weather Service.

What this means

Water levels are unremarkable at Unadilla River at Rockdale, where the gauge shows 4.46 ft.

It is 6.54 ft below the flood stage of 11.00 ft.

It is still going down, by 0.05 ft over the past 24 hours. The forecast expects the river to fall to 4.40 ft by Wednesday, October 21 at 02:00 PM. The 30-day range is 4.44 ft – 4.60 ft.

Judged against the official flood stage for this gauge. How to read levels

Key numbers

Highest on record: 14.22 ftSeptember 8, 2011
Forecast peak: 4.50 ftTuesday, October 20 at 02:00 PM

Paddling and fishing conditions

Most paddlers and anglers will find the river in good shape at this stage.

For reference, flood stage is 11.00 ft.

What happens at each level

14.22 ft: Record flood event of september 2011. Widespread and severe flood inundation occurred to residences and businesses along the river. Millions of dollars in damage were reported.
13.96 ft: Flood level of June 2006. Flooding was widespread and severe with water several feet deep in many locations near the river along Route 8 from Mount Upton to Sidney.
13.00 ft: Major flood stage. Much of Route 8 is flooded north and south of Rockdale including several residences and businesses. Flooding threatens residences in Mount Upton along Bridge Street. Damages at this stage are typically severe.
12.60 ft: Numerous cellars along the river are flooded.
12.00 ft: Moderate flood stage. Several homes and businesses are flooded in various spots along Route 8 between Rockwells Mills and Sidney. Flooding reaches properties and residences on County Route 1 at Rockdale. Hitching Post Lane floods. Residences on County Road 1B and the lower parts of Tall Pines Campground are flooded.
11.00 ft: Flood stage. Widespread flooding of farmland occurs along the river. County Route 8 at the intersection of High Bridge Road is flooded.
4.46 ft: Right now

Impact statements from the U.S. National Weather Service.

Highest crests on record

Chance of at least minor flooding in October to December: < 5 %.

Rank	Level	Date
1	14.22 ft	September 8, 2011
2	13.96 ft	June 29, 2006
3	12.98 ft	December 31, 1942
4	12.64 ft	March 14, 1977
5	12.62 ft	March 26, 1979
6	12.30 ft	March 6, 1964
7	12.24 ft	January 19, 1996
8	12.07 ft	March 18, 1943
9	11.92 ft	April 1, 1940
10	11.89 ft	April 11, 1993

Weather at the gauge

No rain in the last 3 days.

20 Tue 61° 38° – Wind 9 mph

21 Wed 58° 36° – Wind 7 mph

22 Thu 59° 33° – Wind 12 mph

23 Fri 56° 33° – Wind 4 mph

24 Sat 58° 34° – Wind 5 mph

25 Sun 61° 36° – Wind 7 mph

26 Mon 65° 44° – Wind 5 mph

Forecast: Open-Meteo

Sunrise 07:21 AM Sunset 06:13 PM Daylight 10 hr, 53 min Waxing gibbous 70%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Susquehanna River at UnadillaRiver gauge, Susquehanna River	3.13 ft	Below flood stage	−0.07 ft	6.0 mi
Susquehanna River at BainbridgeRiver gauge, Susquehanna River	1.96 ft	Below flood stage	−0.11 ft	7 mi
Ouleout Creek at East SidneyRiver gauge, Ouleout Creek	1.52 ft	Below flood stage	±0	9 mi
East Sidney Lake at East SidneyLake, East Sidney Lake	1,150.16 ft	Normal	−0.19 ft	10 mi
Chenango River at OxfordRiver gauge, Chenango River	7.43 ft	Below flood stage	+0.05 ft	11 mi
Chenango River at NorwichRiver gauge, Chenango River	3.73 ft	Below flood stage	−0.05 ft	12 mi
Trout Creek near Trout CreekRiver gauge, Trout Creek	3.20 ft	Below flood stage	−0.01 ft	16 mi
Chenango River at GreeneRiver gauge, Chenango River	2.44 ft	Below flood stage	+0.02 ft	19 mi

Questions and answers

What is flood stage for the Unadilla River at Rockdale?

The official flood stage is 11.00 ft. The level is currently 6.54 ft below it.

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Unadilla River at Rockdale today?

On Oct 20, 2026, 12:30 PM EDT, the water level was 4.46 ft. Down 0.05 ft over the last 24 hours.

Is Unadilla River at Rockdale rising or falling?

Down 0.05 ft over the last 24 hours.

Is the level of Unadilla River at Rockdale normal?

Below flood stage. Judged against the official flood stage for this gauge.

What is the highest water level ever recorded at Unadilla River at Rockdale?

The highest level on record is 14.22 ft on September 8, 2011.

Is Unadilla River at Rockdale expected to rise?

The forecast expects the river to fall to 4.40 ft by Wednesday, October 21 at 02:00 PM.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:01502500 (Agency page)
Coordinates: 42.37797, -75.40611 (WGS84)
Vertical datum: NAVD88
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	4.46 ft	2026-10-20 16:30	Provisional
Flow	241 cfs	2026-10-20 16:30	Provisional

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How to cite

U.S. Geological Survey: Unadilla River at Rockdale (usgs:01502500). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/new-york/unadilla-river-at-rockdale

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer