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Visit for access to new EXPERIMENTAL products and services from the National Water Center: National Hydrologic Discussion, Area Hydrologic Discussion, Flood Hazard Outlook and the National Water Center Visualization Services, a suite of geospatial services depicting River Forecast Center and National Water Model information.

Hydrograph River at a Glance Download
Heart River at Heart Butte Dam Pool (ft)Highest Observation: 2063.72 ft at 7:00AM Aug 06, 2022Observed: 2063.7 ft at 1:00PM Aug 06, 2022Observed: 2063.7 ft at 7:00PM Aug 06, 2022Observed: 2063.69 ft at 11:00PM Aug 06, 2022Observed: 2063.68 ft at 1:00AM Aug 07, 2022Observed: 2063.68 ft at 7:00AM Aug 07, 2022Observed: 2063.67 ft at 1:00PM Aug 07, 2022Observed: 2063.66 ft at 7:00PM Aug 07, 2022Observed: 2063.66 ft at 11:00PM Aug 07, 2022Observed: 2063.65 ft at 1:00AM Aug 08, 2022US Bureau of ReclamationGLUN8(plotting HPIRZ) Graph Created (4:45AM Aug 9, 2022)ObservedLatest observed value: 2063.65 ft at 1:00 AM MDT 8-Aug-2022.
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Tabular Data (UTC)
Tabular Data (MDT)
XML Data
RSS Files
Datum: NGVD29
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

Zoom Level:14
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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: NAD27

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 Not Available Not Available Dam owner.

Current/Historical Observations:

Additional Information Collapse
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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