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Hydrograph River at a Glance Download
Hockanum River at East Hartford Stage (ft)Flow (kcfs)Observed: 3.42 ft at 9:00PM May 06, 2021Observed: 3.43 ft at 9:15PM May 06, 2021Observed: 3.43 ft at 9:30PM May 06, 2021Observed: 3.44 ft at 9:45PM May 06, 2021Observed: 3.43 ft at 10:00PM May 06, 2021Observed: 3.44 ft at 10:15PM May 06, 2021Highest Observation: 3.46 ft at 10:30PM May 06, 2021Observed: 3.42 ft at 10:45PM May 06, 2021Observed: 3.41 ft at 11:00PM May 06, 2021Observed: 3.42 ft at 11:15PM May 06, 2021Observed: 3.42 ft at 11:30PM May 06, 2021Observed: 3.42 ft at 11:45PM May 06, 2021Observed: 3.41 ft at 12:00AM May 07, 2021Observed: 3.35 ft at 12:15AM May 07, 2021Observed: 3.35 ft at 12:30AM May 07, 2021Observed: 3.34 ft at 12:45AM May 07, 2021Observed: 3.34 ft at 1:00AM May 07, 2021Observed: 3.33 ft at 1:15AM May 07, 2021Observed: 3.32 ft at 1:30AM May 07, 2021Observed: 3.32 ft at 1:45AM May 07, 2021Observed: 3.32 ft at 2:00AM May 07, 2021Observed: 3.31 ft at 2:15AM May 07, 2021Observed: 3.3 ft at 2:30AM May 07, 2021Observed: 3.3 ft at 2:45AM May 07, 2021Observed: 3.29 ft at 3:00AM May 07, 2021Observed: 3.29 ft at 3:15AM May 07, 2021Observed: 3.28 ft at 3:30AM May 07, 2021Observed: 3.27 ft at 3:45AM May 07, 2021Observed: 3.27 ft at 4:00AM May 07, 2021Observed: 3.26 ft at 4:15AM May 07, 2021Observed: 3.26 ft at 4:30AM May 07, 2021Observed: 3.26 ft at 4:45AM May 07, 2021Observed: 3.26 ft at 5:00AM May 07, 2021Observed: 3.25 ft at 5:15AM May 07, 2021Observed: 3.25 ft at 5:30AM May 07, 2021Observed: 3.24 ft at 5:45AM May 07, 2021Observed: 3.24 ft at 6:00AM May 07, 2021Observed: 3.23 ft at 6:15AM May 07, 2021Observed: 3.23 ft at 6:30AM May 07, 2021Observed: 3.23 ft at 6:45AM May 07, 2021Observed: 3.22 ft at 7:00AM May 07, 2021Observed: 3.22 ft at 7:15AM May 07, 2021Observed: 3.22 ft at 7:30AM May 07, 2021Observed: 3.22 ft at 7:45AM May 07, 2021Observed: 3.22 ft at 8:00AM May 07, 2021Observed: 3.22 ft at 8:15AM May 07, 2021Observed: 3.22 ft at 8:30AM May 07, 2021Observed: 3.22 ft at 8:45AM May 07, 2021Observed: 3.22 ft at 9:00AM May 07, 2021Observed: 3.23 ft at 9:15AM May 07, 2021Observed: 3.23 ft at 9:30AM May 07, 2021Observed: 3.24 ft at 9:45AM May 07, 2021Observed: 3.24 ft at 10:00AM May 07, 2021Observed: 3.25 ft at 10:15AM May 07, 2021Observed: 3.25 ft at 10:30AM May 07, 2021Observed: 3.26 ft at 10:45AM May 07, 2021Observed: 3.25 ft at 11:00AM May 07, 2021Observed: 3.26 ft at 11:15AM May 07, 2021Observed: 3.26 ft at 11:30AM May 07, 2021Observed: 3.26 ft at 11:45AM May 07, 2021Observed: 3.25 ft at 12:00PM May 07, 2021Observed: 3.25 ft at 12:15PM May 07, 2021Observed: 3.25 ft at 12:30PM May 07, 2021Observed: 3.25 ft at 12:45PM May 07, 2021Observed: 3.24 ft at 1:00PM May 07, 2021Observed: 3.24 ft at 1:15PM May 07, 2021Observed: 3.23 ft at 1:30PM May 07, 2021Observed: 3.23 ft at 1:45PM May 07, 2021Observed: 3.23 ft at 2:00PM May 07, 2021Observed: 3.23 ft at 2:15PM May 07, 2021Observed: 3.22 ft at 2:30PM May 07, 2021Observed: 3.23 ft at 2:45PM May 07, 2021Observed: 3.23 ft at 3:00PM May 07, 2021Observed: 3.23 ft at 3:15PM May 07, 2021Observed: 3.22 ft at 3:30PM May 07, 2021Observed: 3.22 ft at 3:45PM May 07, 2021Observed: 3.22 ft at 4:00PM May 07, 2021Observed: 3.22 ft at 4:01PM May 07, 2021Observed: 3.22 ft at 4:15PM May 07, 2021Observed: 3.22 ft at 4:30PM May 07, 2021Observed: 3.22 ft at 4:45PM May 07, 2021Observed: 3.22 ft at 5:00PM May 07, 2021Observed: 3.22 ft at 5:15PM May 07, 2021Observed: 3.23 ft at 5:30PM May 07, 2021Observed: 3.22 ft at 5:45PM May 07, 2021Observed: 3.22 ft at 6:00PM May 07, 2021Observed: 3.22 ft at 6:15PM May 07, 2021Observed: 3.21 ft at 6:30PM May 07, 2021Observed: 3.21 ft at 6:45PM May 07, 2021Observed: 3.21 ft at 7:00PM May 07, 2021Observed: 3.21 ft at 7:15PM May 07, 2021Observed: 3.21 ft at 7:30PM May 07, 2021Observed: 3.21 ft at 7:45PM May 07, 2021Observed: 3.2 ft at 8:00PM May 07, 2021Observed: 3.2 ft at 8:15PM May 07, 2021Observed: 3.21 ft at 8:30PM May 07, 2021Observed: 3.2 ft at 8:45PM May 07, 2021Observed: 3.2 ft at 9:00PM May 07, 2021Observed: 3.2 ft at 9:15PM May 07, 2021Observed: 3.21 ft at 9:30PM May 07, 2021Observed: 3.21 ft at 9:45PM May 07, 2021Observed: 3.2 ft at 10:00PM May 07, 2021Observed: 3.2 ft at 10:15PM May 07, 2021Observed: 3.2 ft at 10:30PM May 07, 2021Observed: 3.2 ft at 10:45PM May 07, 2021Observed: 3.19 ft at 11:00PM May 07, 2021Observed: 3.2 ft at 11:15PM May 07, 2021Observed: 3.19 ft at 11:30PM May 07, 2021Observed: 3.19 ft at 11:45PM May 07, 2021Observed: 3.19 ft at 12:00AM May 08, 2021Observed: 3.19 ft at 12:15AM May 08, 2021Observed: 3.15 ft at 12:30AM May 08, 2021Observed: 3.15 ft at 12:45AM May 08, 2021Observed: 3.15 ft at 1:00AM May 08, 2021Observed: 3.14 ft at 1:15AM May 08, 2021Observed: 3.14 ft at 1:30AM May 08, 2021Observed: 3.14 ft at 1:45AM May 08, 2021Observed: 3.14 ft at 2:00AM May 08, 2021Observed: 3.14 ft at 2:15AM May 08, 2021Observed: 3.14 ft at 2:30AM May 08, 2021Observed: 3.13 ft at 2:45AM May 08, 2021Observed: 3.12 ft at 3:00AM May 08, 2021Observed: 3.12 ft at 3:15AM May 08, 2021Observed: 3.11 ft at 3:30AM May 08, 2021Observed: 3.1 ft at 3:45AM May 08, 2021Observed: 3.1 ft at 4:00AM May 08, 2021Observed: 3.09 ft at 4:15AM May 08, 2021Observed: 3.09 ft at 4:30AM May 08, 2021Observed: 3.08 ft at 4:45AM May 08, 2021Observed: 3.08 ft at 5:00AM May 08, 2021Observed: 3.07 ft at 5:15AM May 08, 2021Observed: 3.07 ft at 5:30AM May 08, 2021Observed: 3.06 ft at 5:45AM May 08, 2021Observed: 3.06 ft at 6:00AM May 08, 2021Observed: 3.06 ft at 6:15AM May 08, 2021Observed: 3.06 ft at 6:30AM May 08, 2021Observed: 3.05 ft at 6:45AM May 08, 2021Observed: 3.05 ft at 7:00AM May 08, 2021Observed: 3.05 ft at 7:15AM May 08, 2021Observed: 3.05 ft at 7:30AM May 08, 2021Observed: 3.04 ft at 7:45AM May 08, 2021Observed: 3.04 ft at 8:00AM May 08, 2021Observed: 3.04 ft at 8:15AM May 08, 2021Observed: 3.04 ft at 8:30AM May 08, 2021Observed: 3.04 ft at 8:45AM May 08, 2021Observed: 3.04 ft at 9:00AM May 08, 2021Observed: 3.04 ft at 9:15AM May 08, 2021Observed: 3.05 ft at 9:30AM May 08, 2021Observed: 3.04 ft at 9:45AM May 08, 2021Observed: 3.05 ft at 10:00AM May 08, 2021Observed: 3.05 ft at 10:15AM May 08, 2021Observed: 3.05 ft at 10:30AM May 08, 2021Observed: 3.05 ft at 10:45AM May 08, 2021Observed: 3.06 ft at 11:00AM May 08, 2021Observed: 3.07 ft at 11:15AM May 08, 2021Observed: 3.07 ft at 11:30AM May 08, 2021Observed: 3.07 ft at 11:45AM May 08, 2021Observed: 3.08 ft at 12:00PM May 08, 2021Observed: 3.08 ft at 12:15PM May 08, 2021Observed: 3.08 ft at 12:30PM May 08, 2021Observed: 3.09 ft at 12:45PM May 08, 2021Observed: 3.09 ft at 1:00PM May 08, 2021Observed: 3.09 ft at 1:15PM May 08, 2021Observed: 3.09 ft at 1:30PM May 08, 2021Observed: 3.09 ft at 1:45PM May 08, 2021Observed: 3.09 ft at 2:00PM May 08, 2021Observed: 3.09 ft at 2:15PM May 08, 2021Observed: 3.09 ft at 2:30PM May 08, 2021Observed: 3.09 ft at 2:45PM May 08, 2021Observed: 3.09 ft at 3:00PM May 08, 2021Observed: 3.09 ft at 3:15PM May 08, 2021Observed: 3.09 ft at 3:30PM May 08, 2021Observed: 3.09 ft at 3:45PM May 08, 2021Observed: 3.1 ft at 4:00PM May 08, 2021Observed: 3.1 ft at 4:01PM May 08, 2021Observed: 3.09 ft at 4:15PM May 08, 2021Observed: 3.09 ft at 4:30PM May 08, 2021Observed: 3.09 ft at 4:45PM May 08, 2021Observed: 3.09 ft at 5:00PM May 08, 2021Observed: 3.09 ft at 5:15PM May 08, 2021Observed: 3.09 ft at 5:30PM May 08, 2021Observed: 3.09 ft at 5:45PM May 08, 2021Observed: 3.09 ft at 6:00PM May 08, 2021Observed: 3.08 ft at 6:15PM May 08, 2021Observed: 3.09 ft at 6:30PM May 08, 2021Observed: 3.09 ft at 6:45PM May 08, 2021Observed: 3.09 ft at 7:00PM May 08, 2021Observed: 3.09 ft at 7:15PM May 08, 2021Observed: 3.1 ft at 7:30PM May 08, 2021Observed: 3.1 ft at 7:45PM May 08, 2021Observed: 3.1 ft at 8:00PM May 08, 2021Observed: 3.09 ft at 8:15PM May 08, 2021Observed: 3.09 ft at 8:30PM May 08, 2021Observed: 3.09 ft at 8:45PM May 08, 2021Observed: 3.1 ft at 9:00PM May 08, 2021Observed: 3.1 ft at 9:15PM May 08, 2021Observed: 3.1 ft at 9:30PM May 08, 2021Observed: 3.1 ft at 9:45PM May 08, 2021Observed: 3.1 ft at 10:00PM May 08, 2021Observed: 3.1 ft at 10:15PM May 08, 2021Observed: 3.09 ft at 10:30PM May 08, 2021Observed: 3.09 ft at 10:45PM May 08, 2021Observed: 3.08 ft at 11:00PM May 08, 2021Observed: 3.08 ft at 11:15PM May 08, 2021Observed: 3.07 ft at 11:30PM May 08, 2021Observed: 3.07 ft at 11:45PM May 08, 2021Observed: 3.07 ft at 12:00AM May 09, 2021Observed: 3.06 ft at 12:15AM May 09, 2021Observed: 3.06 ft at 12:30AM May 09, 2021Observed: 3.03 ft at 12:45AM May 09, 2021Observed: 3.03 ft at 1:00AM May 09, 2021Observed: 3.02 ft at 1:15AM May 09, 2021Observed: 3.02 ft at 1:30AM May 09, 2021Observed: 3.01 ft at 1:45AM May 09, 2021Observed: 3.01 ft at 2:00AM May 09, 2021Observed: 3 ft at 2:15AM May 09, 2021Observed: 3 ft at 2:30AM May 09, 2021Observed: 2.99 ft at 2:45AM May 09, 2021Observed: 2.99 ft at 3:00AM May 09, 2021Observed: 2.98 ft at 3:15AM May 09, 2021Observed: 2.98 ft at 3:30AM May 09, 2021Observed: 2.97 ft at 3:45AM May 09, 2021Observed: 2.97 ft at 4:00AM May 09, 2021Observed: 2.96 ft at 4:15AM May 09, 2021Observed: 2.96 ft at 4:30AM May 09, 2021Observed: 2.96 ft at 4:45AM May 09, 2021Observed: 2.95 ft at 5:00AM May 09, 2021Observed: 2.94 ft at 5:15AM May 09, 2021Observed: 2.94 ft at 5:30AM May 09, 2021Observed: 2.94 ft at 5:45AM May 09, 2021Observed: 2.93 ft at 6:00AM May 09, 2021Observed: 2.93 ft at 6:15AM May 09, 2021Observed: 2.93 ft at 6:30AM May 09, 2021Observed: 2.93 ft at 6:45AM May 09, 2021Observed: 2.92 ft at 7:00AM May 09, 2021Observed: 2.92 ft at 7:15AM May 09, 2021Observed: 2.92 ft at 7:30AM May 09, 2021Observed: 2.91 ft at 7:45AM May 09, 2021Observed: 2.91 ft at 8:00AM May 09, 2021Observed: 2.91 ft at 8:15AM May 09, 2021Observed: 2.91 ft at 8:30AM May 09, 2021Observed: 2.91 ft at 8:45AM May 09, 2021Observed: 2.91 ft at 9:00AM May 09, 2021Observed: 2.91 ft at 9:15AM May 09, 2021Observed: 2.91 ft at 9:30AM May 09, 2021Observed: 2.91 ft at 9:45AM May 09, 2021Observed: 2.91 ft at 10:00AM May 09, 2021Observed: 2.91 ft at 10:15AM May 09, 2021Observed: 2.92 ft at 10:30AM May 09, 2021Observed: 2.92 ft at 10:45AM May 09, 2021Observed: 2.93 ft at 11:00AM May 09, 2021Observed: 2.94 ft at 11:15AM May 09, 2021Observed: 2.94 ft at 11:30AM May 09, 2021Observed: 2.94 ft at 11:45AM May 09, 2021Observed: 2.95 ft at 12:00PM May 09, 2021Observed: 2.95 ft at 12:15PM May 09, 2021Observed: 2.96 ft at 12:30PM May 09, 2021Observed: 2.96 ft at 12:45PM May 09, 2021Observed: 2.97 ft at 1:00PM May 09, 2021Observed: 2.97 ft at 1:15PM May 09, 2021Observed: 2.97 ft at 1:30PM May 09, 2021Observed: 2.97 ft at 1:45PM May 09, 2021Observed: 2.97 ft at 2:00PM May 09, 2021Observed: 2.97 ft at 2:15PM May 09, 2021Observed: 2.97 ft at 2:30PM May 09, 2021Observed: 2.97 ft at 2:45PM May 09, 2021Observed: 2.97 ft at 3:00PM May 09, 2021Observed: 2.96 ft at 3:15PM May 09, 2021Observed: 2.96 ft at 3:30PM May 09, 2021Observed: 2.96 ft at 3:45PM May 09, 2021Observed: 2.95 ft at 4:00PM May 09, 2021Observed: 2.95 ft at 4:15PM May 09, 2021Observed: 2.95 ft at 4:16PM May 09, 2021Observed: 2.95 ft at 4:30PM May 09, 2021Observed: 2.95 ft at 4:45PM May 09, 2021Observed: 2.95 ft at 5:00PM May 09, 2021Observed: 2.95 ft at 5:15PM May 09, 2021Observed: 2.95 ft at 5:30PM May 09, 2021Observed: 2.95 ft at 5:45PM May 09, 2021Observed: 2.94 ft at 6:00PM May 09, 2021Observed: 2.95 ft at 6:15PM May 09, 2021Observed: 2.94 ft at 6:30PM May 09, 2021Observed: 2.94 ft at 6:45PM May 09, 2021Observed: 2.94 ft at 7:00PM May 09, 2021Observed: 2.94 ft at 7:15PM May 09, 2021Observed: 2.94 ft at 7:30PM May 09, 2021USGS--Water Resources of the United StatesEHDC3(plotting HGIRG) Graph Created (8:45PM May 9, 2021)ObservedLatest observed value: 2.94 ft at 7:30 PM EDT 9-May-2021. Flood Stage is 9 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: NGVD29
Metadata
NOTE: Forecasts are not available for the Hockanum River at East Hartford. Only observed stages are available for this point.
Return to Area Map
Flood Categories (in feet)
Major Flood Stage: 13
Moderate Flood Stage: 11
Flood Stage: 9
Action Stage: 7
Low Stage (in feet): -9999

Historic Crests
(1) 13.78 ft on 09/21/1938
(2) 12.03 ft on 10/15/2005
(3) 11.93 ft on 01/25/1979
(4) 10.85 ft on 06/06/1982
(5) 10.46 ft on 08/19/1955
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 9.20 ft on 12/25/2020 (P)
(2) 9.06 ft on 08/28/2011
(3) 9.54 ft on 03/07/2011
(4) 9.43 ft on 12/12/2008
(5) 12.03 ft on 10/15/2005
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:16
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
12 Impacted areas include lower lying spots on Arbitus and Preston Streets, as well as Burnside Ave.
10.5 Floodwaters begin to back up behind the Walnut Street Bridge.
9.5 The river begins to flood Burnside Ave, Route 44, in East Hartford.
About This Location Collapse

Latitude: 41.783056° N, Longitude: 72.587778° W, Horizontal Datum: NAD27

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 9 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 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 53.60 62.60 Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other NULL NULL  

Current/Historical Observations:

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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
Boston / Norton Weather Forecast Office
46 Commerce Way
Norton, MA 02766
(508) 622-3250
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Page last modified: 2-Nov-2020 7:30 PM
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