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Hydrograph River at a Glance Download
Sturgeon River near Chassell Stage (ft)CLLM4(plotting HGIRZ) Graph Created (6:45AM May 28, 2024)Flood Stage is 10.5 ft
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Tabular Data (UTC)
Tabular Data (EDT)
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Datum: Not Available
NOTE: Stage measured manually and reported by river observer. No automated gauge on-site.

NOTE: Forecasts are not available for the Sturgeon River near Chassell. Only observed stages are available for this point.

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Upstream Gauge - near Alston Upstream Gauge
Flood Categories (in feet)
Major Flood Stage: 17
Moderate Flood Stage: 13
Flood Stage: 10.5
Action Stage: 10
Low Stage (in feet): -9999

Historic Crests
(1) 11.47 ft on 04/18/2002 (P)
(2) 11.47 ft on 04/08/1997 (P)
(3) 11.38 ft on 04/23/1996 (P)
(4) 10.97 ft on 04/08/1999 (P)
(5) 10.97 ft on 04/21/2004 (P)
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 7.80 ft on 03/15/2010 (P)
(2) 9.40 ft on 04/28/2009 (P)
(3) 10.70 ft on 04/02/2008 (P)
(4) 9.10 ft on 03/27/2007 (P)
(5) 9.30 ft on 04/03/2006 (P)
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:16
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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.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
17 Water flowing over the highest point of the Sturgeon River Road bridge driving surface
15 Water is flowing over road surface of both bridge approaches
14.5 Water reaches the bottom of the bridge between Sturgeon River Road and Rajala Road. The bridge begins to cause backwater effects at this stage
12 Lower portions of Sturgeon River Road...Aho Road...and Rajala Road are impassable
10.5 The river begins to overflow onto Sturgeon River Road...Rajala Road...and Aho Road
(1) Staff Gauge at site
(2) Rajala Road near gauge site - stage = 10.7 feet
(3) Sturgeon River Road near gauge site - stage = 10.7 feet
(4) Looking downstream from gauge site - stage = 10.7 feet
(5) Looking upstream from gauge site - stage = 10.7 feet
About This Location Collapse

Latitude: 46.997500° N, Longitude: 88.509167° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 10.5 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
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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
Marquette Weather Forecast Office
112 Airpark Drive South
Negaunee, MI 49866
(906) 475-5212
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Page last modified: 30-Oct-2020 4:10 PM
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