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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.

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Hydrograph River at a Glance Download
Big Sioux River near Canton Stage (ft)Flow (kcfs)South Dakota DANRBSRS2(plotting HGIRG) Graph Created (12:49PM Feb 2, 2023)Flood Stage is 1117 ft
About this graph
Tabular Data (UTC)
Tabular Data (CST)
XML Data
RSS Files
Datum: Not Available
NOTE: No forecasts are available for this location

NOTE: Forecasts are not available for the Big Sioux River near Canton. Only observed stages are available for this point.

Return to Area Map
Upstream Gauge - at Sioux Falls N. Cliff Avenue Upstream Gauge Downstream Gauge Downstream Gauge - above Hawarden
Flood Categories (in feet)
Major Flood Stage: 21
Moderate Flood Stage: 19
Flood Stage: 16
Action Stage: 14
Low Stage (in feet): -9999

Historic Crests
(1) 21.55 ft on 05/08/1993
(2) 20.19 ft on 04/24/2001
(3) 18.90 ft on 03/28/1997
(4) 18.70 ft on 09/23/1986
(5) 16.00 ft on 03/16/2010
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 16.00 ft on 03/16/2010
(2) 20.19 ft on 04/24/2001
(3) 18.90 ft on 03/28/1997
(4) 11.50 ft on 03/15/1995
(5) 14.30 ft on 06/14/1994
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
KML Image
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.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
26 Many trees and fences in the flood plain will be seriously damaged.
19 Almost all of the crop and pasture land in the 1/2 mile wide flood plain is inundated.
16 Flooding begins to affect a considerable amount of crop and pasture land.
(1) Upstream View
(2) Downstream View
About This Location Collapse

Latitude: 43.389444° N, Longitude: 96.523056° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 16 ft 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 1238.2 ft 1254.2 ft  
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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
Sioux Falls Weather Forecast Office
26 Weather Lane
Sioux Falls, SD 57104-0198
(605) 330-4247
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Page last modified: 2-Nov-2020 7:29 PM
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