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Hydrograph River at a Glance Download Inundation
Mapping
Unadilla River at Rockdale Stage (ft)Flow (kcfs)Highest Observation: 5.81 ft at 5:15AM Apr 21, 2024Observed: 5.8 ft at 5:30AM Apr 21, 2024Highest Observation: 5.81 ft at 5:45AM Apr 21, 2024Observed: 5.8 ft at 6:00AM Apr 21, 2024Observed: 5.8 ft at 6:15AM Apr 21, 2024Observed: 5.79 ft at 6:30AM Apr 21, 2024Observed: 5.8 ft at 6:45AM Apr 21, 2024Observed: 5.8 ft at 7:00AM Apr 21, 2024Observed: 5.78 ft at 7:15AM Apr 21, 2024Observed: 5.77 ft at 7:30AM Apr 21, 2024Observed: 5.78 ft at 7:45AM Apr 21, 2024Observed: 5.78 ft at 8:00AM Apr 21, 2024Observed: 5.78 ft at 8:15AM Apr 21, 2024Observed: 5.78 ft at 8:30AM Apr 21, 2024Observed: 5.77 ft at 8:45AM Apr 21, 2024Observed: 5.78 ft at 9:00AM Apr 21, 2024Observed: 5.78 ft at 9:15AM Apr 21, 2024Observed: 5.77 ft at 9:30AM Apr 21, 2024Observed: 5.76 ft at 9:45AM Apr 21, 2024Observed: 5.76 ft at 10:00AM Apr 21, 2024Observed: 5.77 ft at 10:15AM Apr 21, 2024Observed: 5.76 ft at 10:30AM Apr 21, 2024Observed: 5.76 ft at 10:45AM Apr 21, 2024Observed: 5.76 ft at 11:00AM Apr 21, 2024Observed: 5.76 ft at 11:15AM Apr 21, 2024Observed: 5.76 ft at 11:30AM Apr 21, 2024Observed: 5.76 ft at 11:45AM Apr 21, 2024Observed: 5.76 ft at 12:00PM Apr 21, 2024Observed: 5.76 ft at 12:15PM Apr 21, 2024Observed: 5.75 ft at 12:30PM Apr 21, 2024Observed: 5.74 ft at 12:45PM Apr 21, 2024Observed: 5.76 ft at 1:00PM Apr 21, 2024Observed: 5.75 ft at 1:15PM Apr 21, 2024Observed: 5.74 ft at 1:30PM Apr 21, 2024Observed: 5.75 ft at 1:45PM Apr 21, 2024Observed: 5.74 ft at 2:00PM Apr 21, 2024Observed: 5.75 ft at 2:15PM Apr 21, 2024Observed: 5.74 ft at 2:30PM Apr 21, 2024Observed: 5.73 ft at 2:45PM Apr 21, 2024Observed: 5.73 ft at 3:00PM Apr 21, 2024Observed: 5.74 ft at 3:15PM Apr 21, 2024Observed: 5.74 ft at 3:30PM Apr 21, 2024Observed: 5.73 ft at 3:45PM Apr 21, 2024Observed: 5.73 ft at 4:00PM Apr 21, 2024Observed: 5.73 ft at 4:15PM Apr 21, 2024Observed: 5.73 ft at 4:30PM Apr 21, 2024Observed: 5.73 ft at 4:45PM Apr 21, 2024Observed: 5.72 ft at 5:00PM Apr 21, 2024Observed: 5.72 ft at 5:15PM Apr 21, 2024Observed: 5.73 ft at 5:30PM Apr 21, 2024Observed: 5.72 ft at 5:45PM Apr 21, 2024Observed: 5.72 ft at 6:00PM Apr 21, 2024Observed: 5.72 ft at 6:15PM Apr 21, 2024Observed: 5.71 ft at 6:30PM Apr 21, 2024Observed: 5.72 ft at 6:45PM Apr 21, 2024Observed: 5.71 ft at 7:00PM Apr 21, 2024Observed: 5.72 ft at 7:15PM Apr 21, 2024Observed: 5.71 ft at 7:30PM Apr 21, 2024Observed: 5.72 ft at 7:45PM Apr 21, 2024Observed: 5.7 ft at 8:00PM Apr 21, 2024Observed: 5.7 ft at 8:15PM Apr 21, 2024Observed: 5.72 ft at 8:30PM Apr 21, 2024Observed: 5.7 ft at 8:45PM Apr 21, 2024Observed: 5.69 ft at 9:00PM Apr 21, 2024Observed: 5.7 ft at 9:15PM Apr 21, 2024Observed: 5.71 ft at 9:30PM Apr 21, 2024Observed: 5.7 ft at 9:45PM Apr 21, 2024Observed: 5.69 ft at 10:00PM Apr 21, 2024Observed: 5.69 ft at 10:15PM Apr 21, 2024Observed: 5.69 ft at 10:30PM Apr 21, 2024Observed: 5.69 ft at 10:45PM Apr 21, 2024Observed: 5.7 ft at 11:00PM Apr 21, 2024Observed: 5.7 ft at 11:15PM Apr 21, 2024Observed: 5.69 ft at 11:30PM Apr 21, 2024Observed: 5.68 ft at 11:45PM Apr 21, 2024Observed: 5.69 ft at 12:00AM Apr 22, 2024Observed: 5.69 ft at 12:15AM Apr 22, 2024Observed: 5.68 ft at 12:30AM Apr 22, 2024Observed: 5.69 ft at 12:45AM Apr 22, 2024Observed: 5.68 ft at 1:00AM Apr 22, 2024Observed: 5.67 ft at 1:15AM Apr 22, 2024Observed: 5.68 ft at 1:30AM Apr 22, 2024Observed: 5.68 ft at 1:45AM Apr 22, 2024Observed: 5.69 ft at 2:00AM Apr 22, 2024Observed: 5.67 ft at 2:15AM Apr 22, 2024Observed: 5.68 ft at 2:30AM Apr 22, 2024Observed: 5.69 ft at 2:45AM Apr 22, 2024Observed: 5.68 ft at 3:00AM Apr 22, 2024Observed: 5.68 ft at 3:15AM Apr 22, 2024Observed: 5.66 ft at 3:30AM Apr 22, 2024Observed: 5.67 ft at 3:45AM Apr 22, 2024Observed: 5.68 ft at 4:00AM Apr 22, 2024Observed: 5.68 ft at 4:15AM Apr 22, 2024Observed: 5.66 ft at 4:30AM Apr 22, 2024Observed: 5.66 ft at 4:45AM Apr 22, 2024Observed: 5.66 ft at 5:00AM Apr 22, 2024Observed: 5.66 ft at 5:15AM Apr 22, 2024Observed: 5.66 ft at 5:30AM Apr 22, 2024Observed: 5.67 ft at 5:45AM Apr 22, 2024Observed: 5.66 ft at 6:00AM Apr 22, 2024Observed: 5.65 ft at 6:15AM Apr 22, 2024Observed: 5.67 ft at 6:30AM Apr 22, 2024Observed: 5.65 ft at 6:45AM Apr 22, 2024Observed: 5.65 ft at 7:00AM Apr 22, 2024Observed: 5.65 ft at 7:15AM Apr 22, 2024Observed: 5.65 ft at 7:30AM Apr 22, 2024Observed: 5.65 ft at 7:45AM Apr 22, 2024Observed: 5.65 ft at 8:00AM Apr 22, 2024Observed: 5.65 ft at 8:15AM Apr 22, 2024Observed: 5.65 ft at 8:30AM Apr 22, 2024Observed: 5.65 ft at 8:45AM Apr 22, 2024Observed: 5.64 ft at 9:00AM Apr 22, 2024Observed: 5.64 ft at 9:15AM Apr 22, 2024Observed: 5.65 ft at 9:30AM Apr 22, 2024Observed: 5.65 ft at 9:45AM Apr 22, 2024Observed: 5.65 ft at 10:00AM Apr 22, 2024Observed: 5.65 ft at 10:15AM Apr 22, 2024Observed: 5.64 ft at 10:30AM Apr 22, 2024Observed: 5.64 ft at 10:45AM Apr 22, 2024Observed: 5.64 ft at 11:00AM Apr 22, 2024Observed: 5.64 ft at 11:15AM Apr 22, 2024Observed: 5.63 ft at 11:30AM Apr 22, 2024Observed: 5.63 ft at 11:45AM Apr 22, 2024Observed: 5.64 ft at 12:00PM Apr 22, 2024Observed: 5.64 ft at 12:15PM Apr 22, 2024Observed: 5.64 ft at 12:30PM Apr 22, 2024Observed: 5.63 ft at 12:45PM Apr 22, 2024Observed: 5.63 ft at 1:00PM Apr 22, 2024Observed: 5.63 ft at 1:15PM Apr 22, 2024Observed: 5.64 ft at 1:30PM Apr 22, 2024Observed: 5.64 ft at 1:45PM Apr 22, 2024Observed: 5.63 ft at 2:00PM Apr 22, 2024Observed: 5.62 ft at 2:15PM Apr 22, 2024Observed: 5.63 ft at 2:30PM Apr 22, 2024Observed: 5.62 ft at 2:45PM Apr 22, 2024Observed: 5.62 ft at 3:00PM Apr 22, 2024Observed: 5.62 ft at 3:15PM Apr 22, 2024Observed: 5.62 ft at 3:30PM Apr 22, 2024Observed: 5.62 ft at 3:45PM Apr 22, 2024Observed: 5.62 ft at 4:00PM Apr 22, 2024Observed: 5.62 ft at 4:15PM Apr 22, 2024Observed: 5.62 ft at 4:30PM Apr 22, 2024Observed: 5.62 ft at 4:45PM Apr 22, 2024Observed: 5.61 ft at 5:00PM Apr 22, 2024Observed: 5.62 ft at 5:15PM Apr 22, 2024Observed: 5.61 ft at 5:30PM Apr 22, 2024Observed: 5.61 ft at 5:45PM Apr 22, 2024Observed: 5.61 ft at 6:00PM Apr 22, 2024Observed: 5.61 ft at 6:15PM Apr 22, 2024Observed: 5.62 ft at 6:30PM Apr 22, 2024Observed: 5.61 ft at 6:45PM Apr 22, 2024Observed: 5.6 ft at 7:00PM Apr 22, 2024Observed: 5.61 ft at 7:15PM Apr 22, 2024Observed: 5.61 ft at 7:30PM Apr 22, 2024Observed: 5.6 ft at 7:45PM Apr 22, 2024Observed: 5.61 ft at 8:00PM Apr 22, 2024Observed: 5.6 ft at 8:15PM Apr 22, 2024Observed: 5.59 ft at 8:30PM Apr 22, 2024Observed: 5.6 ft at 8:45PM Apr 22, 2024Observed: 5.59 ft at 9:00PM Apr 22, 2024Observed: 5.59 ft at 9:15PM Apr 22, 2024Observed: 5.6 ft at 9:30PM Apr 22, 2024Observed: 5.58 ft at 9:45PM Apr 22, 2024Observed: 5.6 ft at 10:00PM Apr 22, 2024Observed: 5.59 ft at 10:15PM Apr 22, 2024Observed: 5.59 ft at 10:30PM Apr 22, 2024Observed: 5.58 ft at 10:45PM Apr 22, 2024Observed: 5.58 ft at 11:00PM Apr 22, 2024Observed: 5.59 ft at 11:15PM Apr 22, 2024Observed: 5.59 ft at 11:30PM Apr 22, 2024Observed: 5.57 ft at 11:45PM Apr 22, 2024Observed: 5.58 ft at 12:00AM Apr 23, 2024Observed: 5.57 ft at 12:15AM Apr 23, 2024Observed: 5.58 ft at 12:30AM Apr 23, 2024Observed: 5.57 ft at 12:45AM Apr 23, 2024Observed: 5.57 ft at 1:00AM Apr 23, 2024Observed: 5.57 ft at 1:15AM Apr 23, 2024Observed: 5.57 ft at 1:30AM Apr 23, 2024Observed: 5.57 ft at 1:45AM Apr 23, 2024Observed: 5.57 ft at 2:00AM Apr 23, 2024Observed: 5.57 ft at 2:15AM Apr 23, 2024Observed: 5.57 ft at 2:30AM Apr 23, 2024Observed: 5.56 ft at 2:45AM Apr 23, 2024Observed: 5.57 ft at 3:00AM Apr 23, 2024Observed: 5.57 ft at 3:15AM Apr 23, 2024Observed: 5.56 ft at 3:30AM Apr 23, 2024Observed: 5.56 ft at 3:45AM Apr 23, 2024Observed: 5.55 ft at 4:00AM Apr 23, 2024Observed: 5.56 ft at 4:15AM Apr 23, 2024Observed: 5.56 ft at 4:30AM Apr 23, 2024Forecast: 5.5 ft 8:00AM Apr 23, 2024Forecast: 5.5 ft 2:00PM Apr 23, 2024Forecast: 5.4 ft 8:00PM Apr 23, 2024Forecast: 5.4 ft 2:00AM Apr 24, 2024Forecast: 5.5 ft 8:00AM Apr 24, 2024Highest Forecast: 5.6 ft 2:00PM Apr 24, 2024Highest Forecast: 5.6 ft 8:00PM Apr 24, 2024Highest Forecast: 5.6 ft 2:00AM Apr 25, 2024Highest Forecast: 5.6 ft 8:00AM Apr 25, 2024USGS--Water Resources of the United StatesRCKN6(plotting HGIRG) Graph Created (5:00AM Apr 23, 2024)ObservedForecast (issued 9:33AM Apr 22)Latest observed value: 5.56 ft at 4:30 AM EDT 23-Apr-2024. Flood Stage is 11 ft
Printable Image
About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Forecasts for the Unadilla River at Rockdale are issued routinely year-round.

Vertical datum height surveyed by the USGS

Return to Area Map
Flood Categories (in feet)
Major Flood Stage: 13
Moderate Flood Stage: 12
Flood Stage: 11
Action Stage: 8
Low Stage (in feet): -9999

Historic Crests
(1) 14.22 ft on 09/08/2011
(2) 13.96 ft on 06/29/2006
(3) 12.98 ft on 12/31/1942
(4) 12.64 ft on 03/14/1977
(5) 12.62 ft on 03/26/1979
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 14.22 ft on 09/08/2011
(2) 13.96 ft on 06/29/2006
(3) 11.83 ft on 04/04/2005
(4) 11.04 ft on 04/10/2001
(5) 11.81 ft on 02/28/2000
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.
Zoom Level:15
KML Image
Gauge LocationGauge Map Marker
 Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
14.22 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 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 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.
12.6 Numerous cellars along the river are flooded.
12 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 Flood stage. Widespread flooding of farmland occurs along the river. County Route 8 at the intersection of High Bridge Road is flooded.
Photos
(1) looking upstream
(2) view of gagehouse
(3) looking downstream
About This Location Collapse

Latitude: 42.377778° N, Longitude: 75.406389° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 11 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)		 Elevation
(gauge height = flood stage)		 Elevation information source
NAVD88 991.95 ft 1002.95 ft Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 992.25 ft 1003.25 ft Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:
Additional Information Collapse
Potential River Levels - Used to
Potential River Levels
Used to Estimate the Chance of Flooding and the Range of Possible River Levels
10 Day (HEFS) 7 Day (NAEFS) 7 Day (GEFS)
HEFS Ensemble NAEFS Ensemble GEFS Ensemble

Note: Use the official hydrograph at the top of this web page for river levels within the next 72 Hours.

Click individual graphics to enlarge.
Resources Collapse
Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Binghamton Weather Forecast Office
32 Dawes Drive
Johnson City, NY 13790
(607) 729-1597
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