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Hydrograph River at a Glance Download
Heart River at Heart Butte Dam Pool (ft)Observed: 2056.96 ft at 8:00AM Nov 24, 2021Highest Observation: 2056.97 ft at 2:00PM Nov 24, 2021Observed: 2056.94 ft at 8:00PM Nov 24, 2021Observed: 2056.93 ft at 12:00AM Nov 25, 2021Observed: 2056.94 ft at 2:00AM Nov 25, 2021Observed: 2056.94 ft at 8:00AM Nov 25, 2021Observed: 2056.92 ft at 2:00PM Nov 25, 2021Observed: 2056.93 ft at 8:00PM Nov 25, 2021Observed: 2056.94 ft at 12:00AM Nov 26, 2021Observed: 2056.94 ft at 2:00AM Nov 26, 2021US Bureau of ReclamationGLUN8(plotting HPIRZ) Graph Created (3:30AM Nov 27, 2021)ObservedLatest observed value: 2056.94 ft at 2:00 AM CST 26-Nov-2021.
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Tabular Data (UTC)
Tabular Data (CST)
XML Data
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Datum: Not Available
NOTE: Forecasts are not available for the Heart River at Heart Butte Dam. Only observed stages are available for this point.
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Upstream Gauge - at Dickinson Dam Upstream Gauge Downstream Gauge Downstream Gauge - near Mandan
Flood Categories (in feet)
Not Available

Historic Crests
(1) 2,086.20 ft on 04/09/1952
(2) 2,083.77 ft on 03/31/1978
(3) 2,082.73 ft on 04/16/2009
(4) 2,082.70 ft on 05/12/1970
(5) 2,082.19 ft on 03/24/1997
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(P): Preliminary values subject to further review.

Recent Crests
(1) 2,069.97 ft on 06/03/2013
(2) 2,064.88 ft on 05/06/2012
(3) 2,073.04 ft on 04/10/2011
(4) 2,068.90 ft on 04/02/2010
(5) 2,082.73 ft on 04/16/2009
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

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Gauge LocationGauge Map Marker
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.
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If you notice any errors in the below information, please contact our Webmaster
2087 Max outflow 4150 cfs from glory hole and gates.
2080 A number of seasonal dwellings are damaged by rising water.
2074 Elevation of concession trailer.
2070 Elevation of bank south of concession.
2067 With gates closed, glory hole outflow 990 cfs.
2066.3 At this elevation, 570 cfs through glory hole.
2064.5 Beginning spill elevation of glory hole, zero flow thru glory hole.
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Latitude: 46.595278° N, Longitude: 101.809444° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft Not Available Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
(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 Not Available Not Available Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other 2000 Not Available  

Current/Historical Observations:

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Heart Butte Dam and its reservoir, Lake Tschida are owned and operated by the U.S. Bureau of Reclamation.
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Hydrologic Resources Additional Resources
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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
Bismarck Weather Forecast Office
2301 University Drive, Building 27
Bismarck, ND 58502-1016
(701) 250-4224
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Page last modified: 2-Nov-2020 7:29 PM
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